# Capacitor, RF, 0.82 pF, GJM Series, ± 0.05pF, 125 °C
**URL**: https://novapart.co/products/GJM0335C1HR82WB01D/capacitor-rf-082-pf-gjm-series-005pf-125-c
**SKU**: GJM0335C1HR82WB01D
**Manufacturer**: MURATA
**Category**: Passive Components || Capacitors || RF Capacitors
**Price**: €0.0210
**Stock**: 10+
## Description
Capacitance:0.82pF; Voltage Rating:50V; Ceramic Capacitor Case:0201 [0603 Metric]; Capacitance Tolerance:± 0.05pF; Dielectric Characteristic:C0G / NP0; Product Range:GJM Series; Operating Te
## Specifications
| Parameter | Value |
|---|---|
| Msl | MSL 1 - Unlimited |
| Svhc | No SVHC (17-Dec-2015) |
| Capacitance | 0.82pF |
| Product Range | GJM Series |
| Capacitance Tolerance | ± 0.05pF |
| Operating Temperature Max | 125°C |
| Operating Temperature Min | -55°C |
## Datasheet
📄 [Download PDF](https://novapart.co/datasheet/farnell:2994589/)
## **Only Reflow Soldering Chip Monolithic Ceramic Capacitor High-Q Type for General GJM0335C1HR82WB01_ (0201, C0G:EIA, 0.82pF, DC50V)**
## _: packaging code
## **Reference Sheet**
## **1.Scope**
This product specification is applied to Chip Monolithic Ceramic Capacitor High-Q Type used for General Electronic equipment. This product is applied for Only Reflow Soldering.
## **2.MURATA Part NO. System**
|(Ex.)|GJM
~~fF~~|GJM
~~fF~~|~~J ~~|~~J ~~||03
~~Ee~~||3
~~Ee~~||5C
~~Ed ~~|5C
~~Ed ~~|1H
~~Ed ~~|1H
~~Ed ~~|R82
~~Ed ~~|R82
~~Ed ~~|W
~~Ed) ~~||B01
~~Ed) ~~|D
~~LE]~~|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
||||||(1)L/W
Dimensions|||(2)T
Dimensions|(3)Temperature
Characteristics|||(4)Rated
Voltage||(5)Nominal
Capacitance||(6)Capacitance
Tolerance|(7)Murata’s Control
Code||(8)Packaging Code|
## **3. Type & Dimensions**
||||||||(Unit:mm)|(Unit:mm)|(Unit:mm)|||
|---|---|---|---|---|---|---|---|---|---|---|---|
|(1)-1 L|(1)-2 W
(2) T||e|||||g||||
|0.6±0.03|0.3±0.03
0.3±0.03||0.1 to 0.2||||0.2 min.|0.2 min.||||
|**4.Rated value**||||||||||||
|(3) Temperature Characteristics
(Public STD Code):C0G(EIA)
Temp. Range
(Ref.Temp.)
Temp. coeff
or Cap. Change|||(4)
Rated
Voltage|||(5) Nominal
Capacitance|||(6)
Capacitance
Tolerance||Specifications and Test
Methods
(Operating
Temp. Range)
Capacitance|
|0±30 ppm/°C||25 to 125 °C
(25 °C)|DC 50 V|||0.82 pF|||±0.05 pF||-55 to 125 °C|
|**5.Package**|**5.Package**|||||||||||
|mark|Packaging Unit
(8) Packaging|||||||||||
|D|f180mm Reel
PAPER W8P2
15000 pcs./Reel|||||||||||
|W|f180mm Reel
PAPER W8P1
30000 pcs./Reel|||||||||||
|J|f330mm Reel
PAPER W8P2
50000 pcs./Reel|||||||||||
## **4.Rated value**
## **5.Package**
Product specifications in this catalog are as of Mar.8,2017,and are subject to change or obsolescence without notice. Please consult the approval sheet before ordering. Please read rating and !Cautions first.
GJM0335C1HR82WB01-01
1
## `■` Specifications and Test Methods
|■Specifications and Test Methods|Specifications and Test Methods|Specifications and Test Methods|Specifications and Test Methods|Specifications and Test Methods|Specifications and Test Methods||
|---|---|---|---|---|---|---|
|No|Item||Specification|||Test Method
(Ref. Standard:JIS C 5101, IEC60384）|
|1|Rated Voltage||Shown in Rated value.|||The rated voltage is defined as the maximum voltage
which may be applied continuously to the capacitor.
When AC voltage is superimposed on DC voltage,
VP-Por VO-P, whichever is larger, should be maintained
within the rated voltage range.|
|2|Appearance||No defects or abnormalities.|||Visual inspection.|
|3|Dimension||Within the specified dimensions.|||Using Measuring instrument of dimension.|
|4|Voltage proof||No defects or abnormalities.|||Measurement Point : Between the terminations
Test Voltage :
300% of the rated voltage
Applied Time : 1s to 5 s
Charge/discharge current : 50mA max.|
|5|Insulation Resistance(I.R.)||C≦0.047µF:More than 10000MΩ
C＞0.047µF:More than 500Ω·F
C:Nominal Capacitance|||Measurement Point :
Between the terminations
Measurement Voltage : DC Rated Voltage
Charging Time : 2 min
Charge/discharge current : 50mA max.
Measurement Temperature : Room Temperature|
|6|||Shown in Rated value.|||Measurement Temperature : Room Temperature
Capacitance
Frequency
Voltage
C≦1000pF
1.0+/-0.1MHz
0.5 to 5.0Vrms|
|7|Q||30pF and over:Q≧1000
30pF and below:Q≧400+20C
C:Nominal Capacitance(pF)||||
|8|Temperature Characteristics
of Capacitance||Nominal values of the temperature coefficient is shown in Rated value.
But,the Capacitance Change under 20℃is shown in Table A.
Capacitance Drift
Within +/-0.2% or +/-0.05pF
(Whichever is larger.)|||The capacitance change should be measured after 5 minutes
at each specified temp. stage.
Capacitance value as a reference is the value in step 3.
The capacitance drift is calculated by dividing the differences
between the maximum and minimum measured values in the
step 1,3 and 5 by the cap. value in step 3.
Step
Temperature(C)
1
ReferenceTemp.+/-2
2
Min. OperatingTemp.+/-3
3
ReferenceTemp.+/-2
4
Max.OperatingTemp.+/-3
5
ReferenceTemp.+/-2|
||||||||
||||||||
||||||||
||||||||
||||||||
|9|Adhesive Strength
of Termination||No removal of the terminations or other defect
should occur.|efect||Solder the c|
|10||Appearance|No defects or abnormalities.|||Solder the capacitor on the test substrate shown in Fig.3.
Kind of Vibration :
A simple harmonic motion
10Hz to 55Hz to 10Hz (1min)
Total amplitude : 1.5mm
This motion should be applied for a period of 2h in each 3 mutually
perpendicular directions(total of 6h).|
|||Capacitance|Within the specified initial value.||||
|||Q|Within the specified initial value.||||
|11|Substrate
Bending test|Appearance|No defects or abnormalities.|||Solder the capacitor on the test substrate shown in Fig.1.
Pressurization method :
Shown in Fig.2
Flexure :
1mm
Holding Time :
5+/-1s
Soldering Method : Reflow soldering|
|||Capacitance
Change|Within +/-5% or +/-0.5pF
(Whichever is larger)||||
|12|Solderability||95% of the terminations is to be soldered evenly and continuously.|||Test Method :
Flux
Solution of rosin ethanol 25(mass)%
Preheat : 80℃to 120℃for 10s to 30s
Solder :
Sn-3.0Ag-0.5Cu
Solder Temp. : 245+/-5℃
Solder bath method
Immersion time
: 2+/-0.5s|
JEMCGS-03120B
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|No|Item|Item|Specification|Test Method
(Ref. Standard:JIS C 5101, IEC60384）|
|---|---|---|---|---|
|13
~~=~~|Resistance to
Soldering Heat
~~=~~|Appearance
~~=~~|No defects or abnormalities.
~~=~~|
Test Method : Reflow soldering (hot plate)
Solder :
Sn-3.0Ag-0.5Cu
Solder Temp. : 270+/-5℃
Reflow Time :
10+/-0.5s
Test Substrate :
Glass epoxy PCB
Exposure Time : 24+/-2h
Preheat : 120℃to 150℃for 1 min
Test Method :
Solder :
Sn-3.0Ag-0.5Cu
Solder Temp. : 270+/-5℃
Immersion time : 10+/-0.5s
Exposure Time : 24+/-2h
Preheat : 120℃to 150℃for 1 min
7|
|||Capacitance
Change
~~=~~|Within +/-2.5% or +/- 0.25pF
(Whichever is larger)
~~=~~||
|||Q
~~=~~|Within the specified initial value.
~~=~~||
|||I.R.
~~=~~|Within the specified initial value.
~~=~~||
|||Voltage proof
~~=~~|No defects.
~~= ~~||
|14|Temperature
Sudden Change|Appearance|No defects or abnormalities.|Solder the capacitor on the test substrate shown in Fig.3.
Perform the five cycles according to the four heat treatments
shown in the following table.
Exposure Time : 24+/-2h
Step
Temp.(C)
Time (min)
1
Min.Operating Temp.+0/-3
30+/-3
2
Room Temp.
2 to 3
3
Max.Operating Temp.+3/-0
30+/-3
4
Room Temp
2 to 3|
|||Capacitance
Change|Within +/-2.5% or +/- 0.25pF
(Whichever is larger)||
|||Q|Within the specified initial value.||
|||I.R.|Within the specified initial value.||
|||Voltage proof|No defects.||
|15|High
Temperature
High Humidity
(Steady)|Appearance|No defects or abnormalities.|Solder the capacitor on the test substrate shown in Fig.3.
Test Temperature : 40+/-2℃
Test Humidity : 90%RH to 95%RH
Test Time : 500+/-12h
Applied Voltage : DC Rated Voltage
Charge/discharge current : 50mA max.
Exposure Time : 24+/-2h|
|||Capacitance
Change|Within +/-7.5% or +/-0.75pF
(Whichever is larger)||
|||Q|30pF and over : Q≧200
30pF and below : Q≧100+10C/3
C:Nominal Capacitance(pF)||
|||I.R.|More than 500MΩ or 25Ω·F (Whichever is smaller)||
|16|Durability|Appearance|No defects or abnormalities.|Solder the capacitor on the test substrate shown in Fig.3.
Test Temperature : Max. Operating Temp. +/-3℃
Test Time : 1000+/-12h
Applied Voltage : 100% of the rated voltage
Charge/discharge current : 50mA max.
Exposure Time : 24+/-2h|
|||Capacitance
Change|Within +/-3% or +/-0.3pF
(Whichever is larger)||
|||Q|30pF and over : Q≧350
10pF and over , 30pF and below : Q≧275+5C/2
10pF and below : Q≧200+10C
C:Nominal Capacitance (pF)||
|||I.R.|More than 1,000MΩ or 50Ω·F (Whichever is smaller)||
|17|ESR
(GJM02)||0.2pF≦C≦1pF : 700mΩ/C below
1pF < C≦2pF : 600mΩ below
2pF < C≦5pF : 500mΩ below
5pF < C≦10pF : 300mΩ below
10pF < C≦22pF : 350mΩ below
C:Nominal Capacitance (pF)|Measurement Frequency 1.0+/-0.1GHz
Measurement Temperature : Room Temp.
Measurement Instrument : Equivalent to E4991A|
||ESR
(GJM03/GJM15)||0.1pF≦C≦1pF : 350mΩ/C below
1pF < C≦5pF : 300mΩ below
5pF < C≦10pF : 250mΩ below
C:Nominal Capacitance (pF)|Measurement Frequency 1.0+/-0.2GHz
Measurement Temperature : Room Temp.
Measurement Instrument : Equivalent to BOONTON Model 34A|
||||10pF < C≦47pF : 400mΩ below|Measurement Frequency 500+/-50MHz
Measurement Temperature : Room Temp.
Measurement Instrument : Equivalent to HP8753B|
JEMCGS-03120B
3
|Table A|||||||||
|---|---|---|---|---|---|---|---|---|
|Char.|Capacitance Change from Value at Reference temp. (%)||||||||
||-55℃||-30||-25℃||-10℃||
||Max.|Min.|Max.|Min.|Max.|Min.|Max.|Min.|
|1C|0.54|-0.23|-|-|0.33|-0.14|0.22|-0.09|
|2C|0.82|-0.45|-|-|0.49|-0.27|0.33|-0.18|
|3C|1.37|-0.90|-|-|0.82|-0.54|0.55|-0.36|
|4C|2.56|-1.88|-|-|1.54|-1.13|1.02|-0.75|
|5C|0.58|-0.24|0.40|-0.17|-|-|0.25|-0.11|
|6C|0.87|-0.48|0.59|-0.33|-|-|0.38|-0.21|
Recommended derating conditions on voltage and temperature
These Part Numbers are designed for use in the circuits w here continuous applied voltage to the capacitor is derated than rated voltage, and guarantee Durability Test w ith 100% × rated voltage as testing voltage at the maximum operating temperature. The voltage and temperature derating conditions on the left are recommended for use to ensure the same reliability level as normal specification.
JEMCGS-03120B
4
**==> picture [493 x 321] intentionally omitted <==**
**----- Start of picture text -----**
Substrate Bending test
・ Test substrate
Material : Copper-clad laminated sheets for PCBs
(Glass fabric base, epoxy resin)
Thickness :0.8mm
| : Solder resist
(Coat with heat resistant resin for solder)
for GJM02 for GJM03/15
b
Land f4.5
Dimension (mm)
Type
a b c
GJM02 0.2 0.56 0.23
a GJM03 0.3 0.9 0.3
2 esPo 100 - GJM15 0.4 — 1.5 0.5
Copper foil thickness : 0.018mm Copper foil thickness : 0.035mm
Fig.1 (in mm)
・ Kind of Solder : Sn-3.0Ag-0.5Cu Pressurization
・ Pressurization method 20 50 min. speed
1.0mm/s
Pressurize
R5 w h
Flexure
ae Capacitance meter s
45 45
Fig.2 (in mm)
c c 40
**----- End of picture text -----**
Adhesive Strength of Termination, Vibration, Temperature Sudden Change, Resistance to Soldering Heat (Reflow method) High Temperature High Humidity(Steady) , Durability
`・` Test substrate
Material : Copper-clad laminated sheets for PCBs (Glass fabric base, epoxy resin) Thickness : 1.6mm or 0.8mm Copper foil thickness : 0.035mm
**==> picture [348 x 114] intentionally omitted <==**
**----- Start of picture text -----**
・ Kind of Solder : Sn-3.0Ag-0.5Cu
・ Land Dimensions
Chip Capacitor
Land
Dimension (mm)
Type
a b c
GJM02 0.2 0.56 0.23
GJM03 0.3 0.9 0.3
LY. a Solder Resist oa GJM15 0.4 1.5 0.5
ZZ b mL /
Fig.3
c
**----- End of picture text -----**
JEMCGS-03120B
5
**Package GJM Type**
- 1.Tape Carrier Packaging(Packaging Code:D/E/W/L/J/F)
- 1.1 Minimum Quantity(pcs./reel)
|Type|φ180mm reel|φ180mm reel|φ180mm reel|φ330mm reel|
|---|---|---|---|---|
||Paper Tape||PlasticTape|Paper Tape|
||Code:D/E|Code:W|Code:L|Code:J/F|
|GJM02|||40000 (W4P1)||
|GJM03|15000(W8P2)|30000(W8P1)||50000(W8P2)|
|GJM15|10000(W8P2)|20000(W8P1)||50000(W8P2)|
- 1.2 Dimensions of Tape
**==> picture [471 x 512] intentionally omitted <==**
**----- Start of picture text -----**
1.2 Dimensions of Tape (in mm)
(1)GJM02
2.0±0.04
*1,*2：1.0±0.02
*1 *2 0.15～0.25
φ0.8±0.04
(BP T Ａ G-E-BB Bh -B{--t
0.05 max.
a
t
Dimensions(Chip)
Type A *3 B *3 t
L W T
GJM02 2 0.4±0.02 0.2±0.02 0.2±0.02 0.23 0.43 0.5 max.
*3 Nominal value
(2)GJM03/GJM15 (in mm)
*1,2：2.0±0.05 4.0±0.1
+0.1 *1
φ1.5 -0
Ａ
~-QS RB-E- EEE
0.05 max.
*2
t
Dimensions(Chip)
Type A *3 B *3 t
L W T
GJM03 3 0.6±0.03 0.3±0.03 0.3±0.03 0.37 0.67 0.5 max.
GJM15 5 1.0±0.05 0.5±0.05 0.5±0.05 0.65 1.15 0.8 max.
*3 Nominal value
1.8±0.02
Ｂ
0.9±0.05
4.0±0.05
3.5±0.05
Ｂ
1.75±0.1
8.0±0.3
**----- End of picture text -----**
- (1)GJM02
## (2)GJM03/GJM15
JEMCGP-01914B
6
**Package GJM Type**
(3)GJM03/GJM15 (in mm)
**==> picture [428 x 243] intentionally omitted <==**
**----- Start of picture text -----**
|||||||||
|---|---|---|---|---|---|---|---|
|4.0±0.1|
|1.0±0.05|
|+0.1|
|φ1.5 -0|
|Ａ|
|1.0±0.05|
|a|i|e|
|t|
|Dimensions(Chip)|
|Type|A *3|B *3|t|
|L|W|T|
|GJM03|3|0.6±0.03|0.3±0.03|0.3±0.03|0.37|0.67|0.5 max.|
|GJM15|5|1.0±0.05|0.5±0.05|0.5±0.05|0.65|1.15|0.8 max.|
|*3 Nominal value|
**----- End of picture text -----**
JEMCGP-01914B
7
**Package GJM Type**
Fig.1 Package Chips
**==> picture [37 x 10] intentionally omitted <==**
**----- Start of picture text -----**
(in mm)
**----- End of picture text -----**
**==> picture [21 x 9] intentionally omitted <==**
**----- Start of picture text -----**
Chip
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**==> picture [141 x 12] intentionally omitted <==**
**----- Start of picture text -----**
Fig.2 Dimensions of Reel
**----- End of picture text -----**
**==> picture [402 x 399] intentionally omitted <==**
**----- Start of picture text -----**
2.0±0.5
φ21±0.8
ｗ1
W
Be
:
W w1
GJM02 8.0 max. 5±1.5
. GJM03/GJM15 16.5 max. 10±1.5
Top Tape : Thickness 0.06
Feeding Hole :As specified in 1.2.
Hole for Chip : As specified in 1.2.
aN
Bottom Tape :Thickness 0.05
(Only a bottom tape existence ) Base Tape : As specified in 1.2.
φ330±2.0 φ50 min. φ13±0.5
φ180+0/-3.0
**----- End of picture text -----**
**==> picture [122 x 11] intentionally omitted <==**
**----- Start of picture text -----**
Fig.3 Taping Diagram
**----- End of picture text -----**
JEMCGP-01914B
8
**Package GJM Type**
- 1.3 Tapes for capacitors are wound clockwise shown in Fig.3.
- (The sprocket holes are to the right as the tape is pulled toward the user.)
**==> picture [447 x 231] intentionally omitted <==**
**----- Start of picture text -----**
1.4 Part of the leader and part of the vacant section are attached as follows.
Tail vacant Section Chip-mounting Unit Leader vacant Section (in mm)
— 7? FF
Leader Unit
(Top Tape only)
Direction
of Feed
160 min. 190 min. 210 min.
Sic:
1.5 Accumulate tolerance of sprocket holes pitch = ±0.3mm / 10 pitch
1.6 Chip in the tape is enclosed by top tape and bottom tape as shown in Fig.1.
**----- End of picture text -----**
- 1.7 The top tape and base tape are not attached at the end of the tape for a minimum of 5 pitches.
- 1.8 There are no jointing for top tape and bottom tape.
- 1.9 There are no fuzz in the cavity.
- 1.10 Break down force of top tape : 5N min.
Break down force of bottom tape : 5N min. (Only a bottom tape existence )
- 1.11 Reel is made by resin and appeaser and dimension is shown in Fig 1. There are possibly to change the material and dimension due to some impairment.
- 1.12 Peeling off force : 0.1N to 0.6N* in the direction as shown below.
* GJM02/GJM03:0.05N to 0.5N
`165～180°` Top tape ~~as~~
- 1.13 Label that show the customer parts number, our parts number, our company name, inspection number and quantity, will be put in outside of reel.
JEMCGP-01914B
9
> ! **Caution**
## `■` Limitation of Applications
Please contact us before using our products for the applications listed below which require especially high reliability for the prevention of defects which might directly cause damage to the third party's life, body or property.
①Aircraft equipment ②Aerospace equipment ③Undersea equipment ④Power plant control equipment
⑤Medical equipment ⑥Transportation equipment(vehicles,trains,ships,etc.) ⑦Traffic signal equipment ⑧Disaster prevention / crime prevention equipment ⑨Data-processing equipment
⑩Application of similar complexity and/or reliability requirements to the applications listed in the above.
## `■` Storage and Operation condition
1. The performance of chip monolithic ceramic capacitors may be affected by the storage conditions.
- 1-1. Store the capacitors in the following conditions:
- Room Temperature of +5℃ to +40℃ and a Relative Humidity of 20% to 70%.
- (1) Sunlight, dust, rapid temperature changes, corrosive gas atmosphere, or high temperature and humidity conditions during storage may affect solderability and packaging performance.
- Therefore, please maintain the storage temperature and humidity. Use the product within six months after receipt , as prolonged storage may cause oxidation of the terminations (outer electrodes).
- (2) Please confirm solderability before using after six months. Store the capacitors without opening the original bag.
- Even if the storage period is short, do not exceed the specified atmospheric conditions.
- 1-2. Corrosive gas can react with the termination (external) electrodes or lead wires of capacitors, and result in poor solderability. Do not store the capacitors in an atmosphere consisting of corrosive gas (e.g.,hydrogen sulfide, sulfur dioxide, chlorine, ammonia gas etc.).
- 1-3. Due to moisture condensation caused by rapid humidity changes, or the photochemical change caused by direct sunlight on the terminal electrodes and/or the resin/epoxy coatings, the solderability and electrical performance may deteriorate. Do not store capacitors under direct sunlight or in high huimidity conditions
## `■` Rating
## **1.Temperature Dependent Characteristics**
1. The electrical characteristics of the capacitor can change with temperature.
- 1-1. For capacitors having larger temperature dependency, the capacitance may change with temperature changes. The following actions are recommended in order to ensure suitable capacitance values.
- (1) Select a suitable capacitance for the operating temperature range.
- (2) The capacitance may change within the rated temperature. When you use a high dielectric constant type capacitor in a circuit that needs a tight (narrow) capacitance tolerance (e.g., a time-constant circuit), please carefully consider the temperature characteristics, and carefully confirm the various characteristics in actual use conditions and the actual system.
[Example of Temperature Caracteristics X7R(R7)] [Example of Temperature Characteristics X5R(R6)] Sample: 0.1μF, Rated Voltage 50VDC Sample: 22μF, Rated Voltage 4VDC
**==> picture [434 x 124] intentionally omitted <==**
**----- Start of picture text -----**
20
20
15
15 es a
10 ee ee 10 | | | {| [| | | |
5 TT 5 a
0
0 a a Pe TN
-5
-5 On cs
-10
-10
-15 SERRE -15 ee
-20-75 Frrrtttty -50 -25 0 25 50 75 100 125 150 yy -20-75 es -50 -25 0 25 50 75 100
Temperature ( C) Temperature ( C)
Capacitance Change (%)
Capacitance Change (%)
**----- End of picture text -----**
JEMCGC-2703M
10
> ! **Caution**
## **2.Measurement of Capacitance**
1. Measure capacitance with the voltage and frequency specified in the product specifications.
- 1-1. The output voltage of the measuring equipment may decrease occasionally when capacitance is high. Please confirm whether a prescribed measured voltage is impressed to the capacitor.
- 1-2. The capacitance values of high dielectric constant type capacitors change depending on the AC voltage applied. Please consider the AC voltage characteristics when selecting a capacitor to be used in a AC circuit.
## **3.Applied Voltage**
1. Do not apply a voltage to the capacitor that exceeds the rated voltage as called out in the specifications.
- 1-1. Applied voltage between the terminals of a capacitor shall be less than or equal to the rated voltage. (1) When AC voltage is superimposed on DC voltage, the zero-to-peak voltage shall not exceed the rated DC voltage. When AC voltage or pulse voltage is applied, the peak-to-peak voltage shall not exceed the rated DC voltage.
- (2) Abnormal voltages (surge voltage, static electricity, pulse voltage, etc.) shall not exceed the rated DC voltage.
**==> picture [382 x 118] intentionally omitted <==**
**----- Start of picture text -----**
Typical Voltage Applied to the DC capacitor
DC Voltage DC Voltage+AC AC Voltage Pulse Voltage
tt
E E E 0 E
| | | | 0
0 0
(E ： Maximum possible applied voltage.)
**----- End of picture text -----**
- 1-2. Influence of over voltage
Over voltage that is applied to the capacitor may result in an electrical short circuit caused by the breakdown of the internal dielectric layers .
The time duration until breakdown depends on the applied voltage and the ambient temperature.
## **- 4.Type of Applied Voltage and Self heating Temperature**
- 1.Confirm the operating conditions to make sure that no large current is flowing into the capacitor due to the continuous application of an AC voltage or pulse voltage.
- When a DC rated voltage product is used in an AC voltage circuit or a pulse voltage circuit, the AC current or pulse current will flow into the capacitor; therefore check the self-heating condition.
- Please confirm the surface temperature of the capacitor so that the temperature remains within the upper limits of the operating temperature, including the rise in temperature due to self-heating. When the capacitor is used with a high-frequency voltage or pulse voltage, heat may be generated by dielectric loss.
-
1-1. The load should be contained to the level such that when measuring at atmospheric temperature of 25°C, the product's self-heating remains below 20°C and the surface temperature of the capacitor in the actual circuit remains within the maximum operating temperature.
[Example of Temperature Rise (Heat Generation) in Chip Monolithic Ceramic Capacitors in Contrast to Ripple Current] Sample: R(R1) characteristics 10μF, Rated voltage: DC10V
**==> picture [227 x 152] intentionally omitted <==**
**----- Start of picture text -----**
Ripple Current
100
10
100kHz
500kHz
1MHz
1 Se
0 1 2 3 4 5 6
Current (Ar.m.s.)
Rise ( C)
Temperature
**----- End of picture text -----**
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## **5. DC Voltage and AC Voltage Characteristic**
1. The capacitance value of a high dielectric constant type capacitor changes depending on the DC voltage applied. Please consider the DC voltage characteristics when a capacitor is selected for use in a DC circuit.
- 1-1. The capacitance of ceramic capacitors may change sharply depending on the applied voltage. (See figure) Please confirm the following in order to secure the capacitance.
- (1) Determine whether the capacitance change caused by the applied voltage is within the allowed range .
- (2) In the DC voltage characteristics, the rate of capacitance change becomes larger as voltage increases, even if the applied voltage is below the rated voltage. When a high dielectric constant type capacitor is used in a circuit that requires a tight (narrow) capacitance tolerance (e.g., a time constant circuit), please carefully consider the voltage characteristics, and confirm the various characteristics in the actual operating conditions of the system.
2. The capacitance values of high dielectric constant type capacitors changes depending on the AC voltage applied. Please consider the AC voltage characteristics when selecting a capacitor to be used in a AC circuit.
**==> picture [211 x 286] intentionally omitted <==**
**----- Start of picture text -----**
[Example of DC Voltage Characteristics]
Sample: X7R(R7) Characteristics 0.1μF, Rated Voltage 50VDC
20
0 ee ee ee ee ee
-20 ee ed ee ee
-40 ee ee ee ee ee
-60 re
-80 ee ee ee ee ee
-100 a a ee ee ee
0 10 20 30 40 50
DC Voltage (V)
[Example of AC Voltage Characteristics]
Sample: X7R(R7) Characteristics 10μF, Rated Voltage 6.3VDC
30
-10-20-30-40-50-6020100 eeeseeAAeeseeee eeeeeeeeeseseses eeeeeeeseeeees eeeeeeeeeee
0 0.5 1 1.5 2
AC Voltage (Vr.m.s.)
Capacitance Change (%)
Capacitance Change (%)
**----- End of picture text -----**
## **6. Capacitance Aging**
`[` Example of Change Over Time (Aging characteristics) ]
1. The high dielectric constant type capacitors have an Aging characteristic in which the capacitance value decreases with the passage of time. When you use a high dielectric constant type capacitors in a circuit that needs a tight (narrow) capacitance tolerance (e.g., a time-constant circuit), please carefully consider the characteristics of these capacitors, such as their aging, voltage, and temperature characteristics. In addition, check capacitors using your actual appliances at the intended environment and operating conditions.
**==> picture [214 x 123] intentionally omitted <==**
**----- Start of picture text -----**
20
10
0
-10
-20 C0G(5C)
X7R(R7)
-30
X5R(R6)
-40
10 100 1000 10000
Time(h)
Capacitance Change(%)
**----- End of picture text -----**
## **7.Vibration and Shock**
1. Please confirm the kind of vibration and/or shock, its condition, and any generation of resonance. Please mount the capacitor so as not to generate resonance, and do not allow any impact on the terminals.
2. Mechanical shock due to being dropped may cause damage or a crack in the dielectric material of the capacitor. Do not use a dropped capacitor because the quality and reliability may be deteriorated.
3. When printed circuit boards are piled up or handled, the corner of another printed circuit board
should not be allowed to hit the capacitor in order to avoid a crack or other damage to the capacitor.
**==> picture [107 x 76] intentionally omitted <==**
**----- Start of picture text -----**
Crack
Floor
Mounting printed circuit board
Crack
**----- End of picture text -----**
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## `■` Soldering and Mounting
## **1.Mounting Position**
1. Confirm the best mounting position and direction that minimizes the stress imposed on the capacitor during flexing or bending the printed circuit board.
- 1-1.Choose a mounting position that minimizes the stress imposed on the chip during flexing or bending of the board. [Component Direction]
**==> picture [196 x 56] intentionally omitted <==**
**----- Start of picture text -----**
lah /EK #
**----- End of picture text -----**
Locate chip horizontal to the direction in which stress acts.
(Bad Example) (Good Example)
- [Chip Mounting Close to Board Separation Point]
It is effective to implement the following measures, to reduce stress in separating the board. It is best to implement all of the following three measures; however, implement as many measures as possible to reduce stress.
Contents of Measures Stress Level (1) Turn the mounting direction of the component parallel to the board separation surface. A > D *1 (2) Add slits in the board separation part. A > B ~~———~~ (3) Keep the mounting position of the component away from the board separation surface. A > C `C` Perforation `B D A` g Slit ~~f~~
- *1 A > D is valid when stress is added vertically to the perforation as with Hand Separation. If a Cutting Disc is used, stress will be diagonal to the PCB, therefore A > D is invalid.
- [Mounting Capacitors Near Screw Holes]
When a capacitor is mounted near a screw hole, it may be affected by the board deflection that occurs during the tightening of the screw. Mount the capacitor in a position as far away from the screw holes as possible.
**==> picture [133 x 11] intentionally omitted <==**
**----- Start of picture text -----**
Recommended
Screw Hole
**----- End of picture text -----**
- **2.Information before Mounting**
1. Do not re-use capacitors that were removed from the equipment.
2. Confirm capacitance characteristics under actual applied voltage.
3. Confirm the mechanical stress under actual process and equipment use.
4. Confirm the rated capacitance, rated voltage and other electrical characteristics before assembly.
5. Prior to use, confirm the solderability of capacitors that were in long-term storage.
6. Prior to measuring capacitance, carry out a heat treatment for capacitors that were in long-term storage.
- 7.The use of Sn-Zn based solder will deteriorate the reliability of the MLCC. Please contact our sales representative or product engineers on the use of Sn-Zn based solder in advance.
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## **3.Maintenance of the Mounting (pick and place) Machine**
1. Make sure that the following excessive forces are not applied to the capacitors.
- 1-1. In mounting the capacitors on the printed circuit board, any bending force against them shall be kept to a minimum to prevent them from any damage or cracking. Please take into account the following precautions and recommendations for use in your process.
- (1) Adjust the lowest position of the pickup nozzle so as not to bend the printed circuit board.
- (2) Adjust the nozzle pressure within a static load of 1N to 3N during mounting.
**==> picture [244 x 138] intentionally omitted <==**
**----- Start of picture text -----**
[Incorrect] Suction Nozzle
oo Deflection
Board
Board Guide
[Correct] J
wo Ae
Support Pin
**----- End of picture text -----**
- 2.Dirt particles and dust accumulated between the suction nozzle and the cylinder inner wall prevent the nozzle from moving smoothly. This imposes greater force upon the chip during mounting, causing cracked chips. Also, the locating claw, when worn out, imposes uneven forces on the chip when positioning, causing cracked chips. The suction nozzle and the locating claw must be maintained, checked and replaced periodically.
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## **4-1.Reflow Soldering**
[Standard Conditions for Reflow Soldering]
**==> picture [446 x 136] intentionally omitted <==**
**----- Start of picture text -----**
1. When sudden heat is applied to the components, the [Standard Conditions for Reflow Soldering]
mechanical strength of the components will decrease
because a sudden temperature change causes
deformation inside the components. In order to prevent Temperature( ℃ )
mechanical damage to the components, preheating is Soldering
Peak Temperature
required for both the components and the PCB. 220 ℃ Gradual
Preheating conditions are shown in table 1. It is required to Δ T Cooling
keep the temperature differential between the solder and 190 ℃ a
the components surface (ΔT) as small as possible. 170150 ℃℃ || Ae
Preheating
2. Solderability of tin plating termination chips might be
deteriorated when a low temperature soldering profile where es Time
60-120 seconds 30-60 seconds
**----- End of picture text -----**
2. Solderability of tin plating termination chips might be deteriorated when a low temperature soldering profile where the peak solder temperature is below the melting point of tin is used. Please confirm the solderability of tin plated termination chips before use.
3. When components are immersed in solvent after mounting, be sure to maintain the temperature difference (ΔT)
- between the component and the solvent within the range [Allowable Reflow Soldering Temperature and Time] shown in the table 1.
## Table 1
**==> picture [266 x 30] intentionally omitted <==**
**----- Start of picture text -----**
Series Chip Dimension(L/W) Code Temperature Differential
GJM 02/03/15 ΔT ≦ 190 ℃
**----- End of picture text -----**
**==> picture [174 x 88] intentionally omitted <==**
**----- Start of picture text -----**
280
270
260 ee
250
240
230
aa
220 0 30 60 90 120
Soldering Time(s)
℃ )
Soldering Temperature(
**----- End of picture text -----**
|Recommended Conditions||
|---|---|
||LeadFree Solder|
|Peak Temperature|240 to 260℃|
|Atmosphere|Air or N2|
In the case of repeated soldering, the accumulated soldering time must be within the range shown above.
4. Optimum Solder Amount for Reflow Soldering
- 4-1. Overly thick application of solder paste results in a excessive solder fillet height.
This makes the chip more susceptible to mechanical and thermal stress on the board and may cause the chips to crack.
- 4-2. Too little solder paste results in a lack of adhesive strength on the termination, which may result in chips breaking loose from the PCB.
- 4-3. Please confirm that solder has been applied smoothly to the termination.
## ~~I~~ Inverting the PCB
Make sure not to impose any abnormal mechanical shocks to the PCB.
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## **4-2.Flow Soldering**
1. This product is not apply flow soldering.
## **4-3.Correction of Soldered Portion**
When sudden heat is applied to the capacitor, distortion caused by the large temperature difference occurs internally, and can be the cause of cracks. Capacitors also tend to be affected by mechanical and thermal stress depending on the board preheating temperature or the soldering fillet shape, and can be the cause of cracks. Please refer to "1. PCB Design" or "3. Optimum solder amount" for the solder amount and the fillet shapes.
## 1. Correction with a Soldering Iron
- 1-1. In order to reduce damage to the capacitor, be sure to preheat the capacitor and the mounting board. Preheat to the temperature range shown in Table 3. A hot plate, hot air type preheater, etc. can be used for preheating.
- 1-2. After soldering, do not allow the component/PCB to cool down rapidly.
- 1-3. Perform the corrections with a soldering iron as quickly as possible. If the soldering iron is applied too long, there is a possibility of causing solder leaching on the terminal electrodes, which will cause deterioration of the adhesive strength and other problems.
Table 3
Chip Dimension Temperature of Preheating Temperature Series Atmosphere (L/W) Code Soldering Iron Tip Temperature Differential(ΔT) GJM 03/15 350 `℃` max. 150 `℃` min. ΔT `≦` 190 `℃` Air ~~a~~ Lead Free Solder: Sn-3.0Ag-0.5Cu * Please manage Δ T in the temperature of soldering iron and the preheating temperature.
## 2. Correction with Spot Heater
Compared to local heating with a soldering iron, hot air heating by a spot heater heats the overall component and board, therefore, it tends to lessen the thermal shock. In the case of a high density mounted board,
a spot heater can also prevent concerns of the soldering iron making direct contact with the component.
- 2-1. If the distance from the hot air outlet of the spot heater to the component is too close, cracks may occur due to thermal shock. To prevent this problem, follow the conditions shown in Table 4.
- 2-2. In order to create an appropriate solder fillet shape, it is recommended that hot air be applied at the angle shown in Figure 1.
**==> picture [395 x 164] intentionally omitted <==**
**----- Start of picture text -----**
Table 4
Distance 5mm or more
Hot Air Application angle 45° *Figure 1
Hot Air Temperature Nozzle Outlet 400°C max.
Less than 10 seconds
Application Time
——— (1005M / 0402 size or smaller) (1005M : Metric size code)
[Figure 1]
One-hole Nozzle
an Angle of 45
**----- End of picture text -----**
3. Optimum solder amount when re-working with a soldering iron
- 3-1. If the solder amount is excessive, the risk of cracking is higher during board bending or any other stressful condition.
- Too little solder amount results in a lack of adhesive strength on the termination, which may result in chips breaking loose from the PCB.
**==> picture [463 x 68] intentionally omitted <==**
**----- Start of picture text -----**
during board bending or any other stressful condition. Solder Amount
Too little solder amount results in a lack of adhesive strength
on the termination, which may result in chips breaking e e
loose from the PCB.
Please confirm that solder has been applied smoothly is in section
and rising to the end surface of the chip.
**----- End of picture text -----**
- 3-2. A soldering iron with a tip of ø3mm or smaller should be used. It is also necessary to keep the soldering iron from touching the components during the re-work.
- 3-3. Solder wire with ø0.5mm or smaller is required for soldering.
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## **5.Washing**
Excessive ultrasonic oscillation during cleaning can cause the PCBs to resonate, resulting in cracked chips or broken solder joints. Take note not to vibrate PCBs.
## **6.Electrical Test on Printed Circuit Board**
1. Confirm position of the support pin or specific jig, when inspecting the electrical performance of a capacitor after mounting on the printed circuit board.
- 1-1. Avoid bending the printed circuit board by the pressure of a test-probe, etc. The thrusting force of the test probe can flex the PCB, resulting in cracked chips or open solder joints. Provide support pins on the back side of the PCB to prevent warping or flexing. Install support pins as close to the test-probe as possible.
- 1-2. Avoid vibration of the board by shock when a test -probe contacts a printed circuit board.
**==> picture [347 x 82] intentionally omitted <==**
**----- Start of picture text -----**
[Not Recommended] [Recommended]
Peeling Support Pin
Test-probe
Test-probe
s ap eee
**----- End of picture text -----**
## **7.Printed Circuit Board Cropping**
1. After mounting a capacitor on a printed circuit board, do not apply any stress to the capacitor that caused bending or twisting the board.
- 1-1. In cropping the board, the stress as shown may cause the capacitor to crack. Cracked capacitors may cause deterioration of the insulation resistance, and result in a short. Avoid this type of stress to a capacitor.
**==> picture [232 x 9] intentionally omitted <==**
**----- Start of picture text -----**
[Bending] [Twisting]
**----- End of picture text -----**
2. Check the cropping method for the printed circuit board in advance.
- 2-1. Printed circuit board cropping shall be carried out by using a jig or an apparatus (Disc separator, router type separator, etc.) to prevent the mechanical stress that can occur to the board.
|Board Separation Method|Hand Separation
Nipper Separation|(1) Board Separation Jig|Board Separation Apparatus|Board Separation Apparatus|
|---|---|---|---|---|
||||2)Disc Separator|3)Router Type Separator|
|Level of stress on board|High|Medium|Medium|Low|
|Recommended|×|△*|△*|◯|
|Notes|Hand and nipper
separation apply a high
level of stress.
Use another method.|· Board handling
· Board bending direction
· Layout of capacitors
· Board handling
· Layout of slits
· Design of V groove
· Arrangement of blades
· Controlling blade life|· Board handling
· Layout of slits
· Design of V groove
· Arrangement of blades
· Controlling blade life|Board handling|
- When a board separation jig or disc separator is used, if the following precautions are not observed,
- a large board deflection stress will occur and the capacitors may crack. Use router type separator if at all possible.
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- (1) Example of a suitable jig
- [In the case of Single-side Mounting]
An outline of the board separation jig is shown as follows.
Recommended example: Stress on the component mounting position can be minimized by holding the portion close to the jig, and bend in the direction towards the side where the capacitors are mounted. Not recommended example: The risk of cracks occurring in the capacitors increases due to large stress being applied to the component mounting position, if the portion away from the jig is held and bent in the direction opposite the side where the capacitors are mounted.
[Outline of jig] [Hand Separation]
**==> picture [458 x 66] intentionally omitted <==**
**----- Start of picture text -----**
a Recommended Not recommended
Direction of load Load point Direction of
Printed Circuit Boar d Printed circuit load
V-groove board Component
Board Cropping Jig Load point Printed circuiboard t Components
**----- End of picture text -----**
[In the case of Double-sided Mounting]
Since components are mounted on both sides of the board, the risk of cracks occurring can not be avoided with the above method. Therefore, implement the following measures to prevent stress from being applied to the components. (Measures)
- (1) Consider introducing a router type separator.
If it is difficult to introduce a router type separator, implement the following measures.
(Refer to item 1. Mounting Position)
- (2) Mount the components parallel to the board separation surface.
- (3) When mounting components near the board separation point, add slits in the separation position near the component.
- (4) Keep the mounting position of the components away from the board separation point.
## (2) Example of a Disc Separator
An outline of a disc separator is shown as follows. As shown in the Principle of Operation, the top
blade and bottom blade are aligned with the V-grooves on the printed circuit board to separate the board. In the following case, board deflection stress will be applied and cause cracks in the capacitors.
- (1) When the adjustment of the top and bottom blades are misaligned, such as deviating in the top-bottom, left-right or front-rear directions
- (2) The angle of the V groove is too low, depth of the V groove is too shallow, or the V groove is misaligned top-bottom
IF V groove is too deep, it is possible to brake when you handle and carry it. Carefully design depth of the V groove with consideration about strength of material of the printed circuit board.
**==> picture [458 x 206] intentionally omitted <==**
**----- Start of picture text -----**
[ Outline of Machine ] [ Principle of Operation ] [ Cross-section Diagram ]
Top Blade Printed Circuit Board
Top Blade
V-groove
Bottom Blade
Printed Circuit Board
(J — V-groove “yp
[Disc Separator]
Not recommended
Recommended
Top-bottom Misalignment Left-right Misalignment Front-rear Misalignment
Top Blade Top Blade Top Blade Top Blade
Bottom Blade Bottom Blade Bottom Blade Bottom Blade
-
[V groove Design]
Example of Recommended Not Recommended
V-groove Design Left-right Misalignment Low-Angle Depth too Shallow Depth too Deep
**----- End of picture text -----**
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(3) Example of Router Type Separator The router type separator performs cutting by a router [ Outline Drawing ] Router rotating at a high speed. Since the board does not bend in the cutting process, stress on the board can be suppressed during board separation. When attaching or removing boards to/from the router type separator, carefully handle the boards to prevent bending. LL
## **8. Assembly**
## 1. Handling
If a board mounted with capacitors is held with one hand, the board may bend. Firmly hold the edges of the board with both hands when handling. If a board mounted with capacitors is dropped, cracks may occur in the capacitors. Do not use dropped boards, as there is a possibility that the quality of the capacitors may be impaired.
2. Attachment of Other Components
## 2-1. Mounting of Other Components
Pay attention to the following items, when mounting other components on the back side of the board after capacitors have been mounted on the opposite side.
When the bottom dead point of the suction nozzle is set too low, board deflection stress may be applied to the capacitors on the back side (bottom side), and cracks may occur in the capacitors.
- After the board is straightened, set the bottom dead point of the nozzle on the upper surface of the board. · Periodically check and adjust the bottom dead point.
Suction Nozzle [:
2-2. Inserting Components with Leads into Boards When inserting components (transformers, IC, etc.) into boards, bending the board may cause cracks in the capacitors or cracks in the solder. Pay attention to the following.
- Increase the size of the holes to insert the leads, to reduce the stress on the board during insertion.
- Fix the board with support pins or a dedicated jig before insertion.
- Support below the board so that the board does not bend. When using multiple support pins on the board, periodically confirm that there is no difference in the height of each support pin.
Component with Leads
- ~~an~~
- 2-3. Attaching/Removing Sockets When the board itself is a connector, the board may bend when a socket is attached or removed. Plan the work so that the board does not bend when a socket is attached or removed. Socket
- ~~a~~
2-4. Tightening Screws The board may be bent, when tightening screws, etc. during the attachment of the board to a shield or chassis. Pay attention to the following items before performing the work.
- Plan the work to prevent the board from bending.
- Use a torque screwdriver, to prevent over-tightening of the screws.
- The board may bend after mounting by reflow soldering, etc. Please note, as stress may be applied to the chips by forcibly flattening the board when tightening the screws.
## Screwdriver
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> ! **Caution** ~~aaa~~ Ss
## `■` Others
## **1. Under Operation of Equipment**
- 1-1. Do not touch a capacitor directly with bare hands during operation in order to avoid the danger of an electric shock.
- 1-2. Do not allow the terminals of a capacitor to come in contact with any conductive objects (short-circuit). Do not expose a capacitor to a conductive liquid, inducing any acid or alkali solutions.
- 1-3. Confirm the environment in which the equipment will operate is under the specified conditions. Do not use the equipment under the following environments.
- (1) Being spattered with water or oil.
- (2) Being exposed to direct sunlight.
- (3) Being exposed to ozone, ultraviolet rays, or radiation.
- (4) Being exposed to toxic gas (e.g., hydrogen sulfide, sulfur dioxide, chlorine, ammonia gas etc.)
- (5) Any vibrations or mechanical shocks exceeding the specified limits.
- (6) Moisture condensing environments.
- 1-4. Use damp proof countermeasures if using under any conditions that can cause condensation.
## **2. Others**
## 2-1. In an Emergency
- (1) If the equipment should generate smoke, fire, or smell, immediately turn off or unplug the equipment. If the equipment is not turned off or unplugged, the hazards may be worsened by supplying continuous power.
- (2) In this type of situation, do not allow face and hands to come in contact with the capacitor or burns may be caused by the capacitor's high temperature.
## 2-2. Disposal of waste
When capacitors are disposed of, they must be burned or buried by an industrial waste vendor with the appropriate licenses.
## 2-3. Circuit Design
- (1) Addition of Fail Safe Function
Capacitors that are cracked by dropping or bending of the board may cause deterioration of the insulation resistance, and result in a short. If the circuit being used may cause an electrical shock,
smoke or fire when a capacitor is shorted, be sure to install fail-safe functions, such as a fuse, to prevent secondary accidents.
- (2) This series are not safety standard certified products.
## 2-4. Remarks
Failure to follow the cautions may result, worst case, in a short circuit and smoking when the product is used. The above notices are for standard applications and conditions. Contact us when the products are used in special mounting conditions.
Select optimum conditions for operation as they determine the reliability of the product after assembly. The data herein are given in typical values, not guaranteed ratings.
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**Notice** ~~eee~~
## `■` Rating
## **1.Operating Temperature**
1. The operating temperature limit depends on the capacitor.
- 1-1. Do not apply temperatures exceeding the maximum operating temperature. It is necessary to select a capacitor with a suitable rated temperature that will cover the operating temperature range. It is also necessary to consider the temperature distribution in equipment and the seasonal temperature variable factor.
- 1-2. Consider the self-heating factor of the capacitor
The surface temperature of the capacitor shall not exceed the maximum operating temperature including self-heating.
## **2.Atmosphere Surroundings (gaseous and liquid)**
1. Restriction on the operating environment of capacitors.
- 1-1. Capacitors, when used in the above, unsuitable, operating environments may deteriorate due to the corrosion of the terminations and the penetration of moisture into the capacitor.
- 1-2. The same phenomenon as the above may occur when the electrodes or terminals of the capacitor are subject to moisture condensation.
- 1-3. The deterioration of characteristics and insulation resistance due to the oxidization or corrosion of terminal electrodes may result in breakdown when the capacitor is exposed to corrosive or volatile gases or solvents
- for long periods of time.
## **3.Piezo-electric Phenomenon**
1. When using high dielectric constant type capacitors in AC or pulse circuits, the capacitor itself vibrates at specific frequencies and noise may be generated.
- Moreover, when the mechanical vibration or shock is added to capacitor, noise may occur.
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**Notice**
## `■` Soldering and Mounting
## **1.PCB Design**
1. Notice for Pattern Forms
- 1-1. Unlike leaded components, chip components are susceptible to flexing stresses since they are mounted directly on the substrate.
- They are also more sensitive to mechanical and thermal stresses than leaded components. Excess solder fillet height can multiply these stresses and cause chip cracking. When designing substrates, take land patterns and dimensions into consideration to eliminate the possibility of excess solder fillet height.
on a chip is different depending on PCB material and structure.When the thermal expansion coefficient greatly differs between the board used for mounting and the chip,it will cause cracking of the chip due to the thermal expansion and contraction. When capacitors are mounted on a fluorine resin printed circuit board or on a single-layered glass epoxy board, it may also cause cracking of the chip for the same reason.
## Pattern Forms
**==> picture [471 x 323] intentionally omitted <==**
**----- Start of picture text -----**
Prohibited Correct
Chassis
ra
Solder (ground) Solder Resist
Placing Close to Chassis
—— alo
Electrode Pattern
in section in section
Lead Wire Solder Resist
Placing of Chip
Components
and Leaded
Components
in section in section
Soldering Iron Lead Wire
Placing of Leaded Solder Resist
Components
after Chip Component
in section in section
| ec | eae
Solder Resist
Lateral Mounting
**----- End of picture text -----**
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**Notice**
## 2. Land Dimensions
- 2-1. Chip capacitors can be cracked due to the stress of PCB bending , etc. if the land area is larger than needed and has an excess amount of solder. Please refer to the land dimensions in table 1 for reflow soldering.
Please confirm the suitable land dimension by evaluating of the actual SET / PCB.
**==> picture [185 x 89] intentionally omitted <==**
**----- Start of picture text -----**
Chip Capacitor
Land
b a Solder Resist
c
**----- End of picture text -----**
## Table 1 Reflow Soldering Method
|Series|Chip Dimension
(L/W) Code|Chip(L×W)|a|b|c|
|---|---|---|---|---|---|
|GJM|02|0.4×0.2|0.16 to 0.2|0.12 to 0.18|0.2 to 0.23|
|GJM|03|0.6×0.3|0.2 to 0.3|0.2 to 0.35|0.2 to 0.4|
|GJM|15|1.0×0.5|0.3 to 0.5|0.35 to 0.45|0.4 to 0.6|
## 3. Board Design
When designing the board, keep in mind that the amount of strain which occurs will increase depending on the size and material of the board.
Relationship with amount of strain to the board thickness, length, width, etc.]
**==> picture [328 x 136] intentionally omitted <==**
**----- Start of picture text -----**
ε= [3PL ] Relationship between load and strain
2 Ewh [2]
ε ： Strain on center of board (μst)
P L ： Distance between supporting points (mm)
Y w ： Board width (mm)
h ： Board thickness (mm)
E ： Elastic modulus of board (N/m [2] =Pa)
h Y ： Deflection (mm)
P ： Load (N)
L w
When the load is constant, the following relationship can be established.
· As the distance between the supporting points (L) increases,the amount of strain also increases.
→Reduce the distance between the supporting points.
· As the elastic modulus (E) decreases, the amount of strain increases.
→Increase the elastic modulus.
**----- End of picture text -----**
- As the board width (w) decreases, the amount of strain increases.
- →Increase the width of the board.
- As the board thickness (h) decreases, the amount of strain increases.
- →Increase the thickness of the board.
Since the board thickness is squared, the effect on the amount of strain becomes even greater.
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**Notice**
## **2.Reflow soldering**
The halogen system substance and organic acid are included in solder paste, and a chip corrodes
Do not use strong acid flux. Do not use water-soluble flux.*
- (*Water-soluble flux can be defined as non-rosin type flux including wash-type flux and non-wash-type flux.)
## **3.Washing**
1. Please evaluate the capacitor using actual cleaning equipment and conditions to confirm the quality, and select the solvent for cleaning.
2. Unsuitable cleaning solvent may leave residual flux or other foreign substances, causing deterioration of electrical characteristics and the reliability of the capacitors.
3. Select the proper cleaning conditions.
- 3-1. Improper cleaning conditions (excessive or insufficient) may result in the deterioration of the performance of the capacitors.
## **4.Coating**
1. A crack may be caused in the capacitor due to the stress of the thermal contraction of the resin during curing process. The stress is affected by the amount of resin and curing contraction. Select a resin with low curing contraction. The difference in the thermal expansion coefficient between a coating resin or a molding resin and the capacitor may cause the destruction and deterioration of the capacitor such as a crack or peeling, and lead to the deterioration of insulation resistance or dielectric breakdown.
- Select a resin for which the thermal expansion coefficient is as close to that of the capacitor as possible. A silicone resin can be used as an under-coating to buffer against the stress.
2. Select a resin that is less hygroscopic.
- Using hygroscopic resins under high humidity conditions may cause the deterioration of the insulation resistance of a capacitor. An epoxy resin can be used as a less hygroscopic resin.
- 3．The halogen system substance and organic acid are included in coating material, and a chip corrodes by the kind of Coating material. Do not use strong acid type.
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**Notice** ~~eee~~
## `■` Others
## **1.Transportation**
1. The performance of a capacitor may be affected by the conditions during transportation.
- 1-1. The capacitors shall be protected against excessive temperature, humidity and mechanical force during transportation.
- (1) Climatic condition
- `･` low air temperature : -40 `℃`
- `･` change of temperature air/air : -25 `℃` /+25 `℃`
- `･` low air pressure : 30 kPa
- `･` change of air pressure : 6 kPa/min.
- (2) Mechanical condition
Transportation shall be done in such a way that the boxes are not deformed and forces are not directly passed on to the inner packaging.
- 1-2. Do not apply excessive vibration, shock, or pressure to the capacitor.
- (1) When excessive mechanical shock or pressure is applied to a capacitor, chipping or cracking may occur in the ceramic body of the capacitor.
- (2) When the sharp edge of an air driver, a soldering iron, tweezers, a chassis, etc. impacts strongly on the surface of the capacitor, the capacitor may crack and short-circuit.
- 1-3. Do not use a capacitor to which excessive shock was applied by dropping etc.
- A capacitor dropped accidentally during processing may be damaged.
## **2.Characteristics Evaluation in the Actual System**
1. Evaluate the capacitor in the actual system,to confirm that there is no problem with the performance and specification values in a finished product before using.
2. Since a voltage dependency and temperature dependency exists in the capacitance of high dielectric type ceramic capacitors, the capacitance may change depending on the operating conditions in the actual system. Therefore,be sure to evaluate the various characteristics, such as the leakage current and noise absorptivity, which will affect the capacitance value of the capacitor.
3. In addition,voltages exceeding the predetermined surge may be applied to the capacitor by the inductance in the actual system. Evaluate the surge resistance in the actual system as required.
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! **NOTE** ~~ha~~ aaa Ea ass
- 1.Please make sure that your product has been evaluated in view of your specifications with our product being mounted to your product.
2.Your are requested not to use our product deviating from this product specification.
3.We consider it not appropriate to include any terms and conditions with regard to the business transaction in the product specifications, drawings or other technical documents. Therefore, if your technical documents as above include such terms and conditions such as warranty clause, product liability clause, or intellectual property infringement liability clause, they will be deemed to be invalid.
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## Links
- [View this product on Novapart](https://novapart.co/products/GJM0335C1HR82WB01D/capacitor-rf-082-pf-gjm-series-005pf-125-c)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/murata/gjm0335c1hr82wb01d/cap-0-82pf-50v-mlcc-0201/dp/2994589)
---
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