# TVS Diode, SMDA, Unidirectional, 5 V, 11 V, SOIC, 8 Pins
**URL**: https://novapart.co/products/SMDA05.TBT/tvs-diode-smda-unidirectional-5-v-11-soic-8-pins
**SKU**: SMDA05.TBT
**Manufacturer**: SEMTECH
**Category**: Circuit Protection || TVS - Transient Voltage Suppressors || TVS Diodes
**Price**: €0.9830
**Stock**: 25+
**Lead Time**: 87 days (indicative)
## Description
Product Range:SMDAxx Series; TVS Polarity:Unidirectional; Reverse Stand-Off Voltage Vrwm:5V; Clamping Voltage Vc Max:11V; Diode Case Style:SOIC; No. of Pins:8Pins; Breakdown Voltage Min:-; Breakdown Volta
## Specifications
| Parameter | Value |
|---|---|
| Svhc | No SVHC (15-Jan-2019) |
| No. Of Pins | 8Pins |
| Tvs Polarity | Unidirectional |
| Product Range | SMDA |
| Qualification | - |
| Diode Mounting | Surface Mount |
| Diode Case Style | SOIC |
| Clamping Voltage Max | 11V |
| Reverse Standoff Voltage | 5V |
| Maximum Breakdown Voltage | 6V |
| Minimum Breakdown Voltage | - |
| Operating Temperature Max | 125°C |
| Peak Pulse Power Dissipation | 300W |
## Datasheet
📄 [Download PDF](https://novapart.co/datasheet/farnell:1456396/)
SMDA05 through SMDA24 Unidirectional TVS Array for Protection of Four Lines
## **PROTECTION PRODUCTS**
## Description
The SMDAxx series of TVS arrays are designed to provide undirectional protection for sensitive electronics from damage or latch-up due to ESD, lightning, and other voltage-induced transient events. Each device will protect four data or I/O lines. They are available with operating voltages of 5V, 12V, 15V and 24V.
## Features
- Transient protection for data lines to IEC 61000-4-2 (ESD) ±15kV (air), ±8kV (contact) IEC 61000-4-4 (EFT) 40A (5/50ns) IEC 61000-4-5 (Lightning) 12A (8/20µs)
- Undirectional protection
- Small SO-8 package
- Protects four I/O lines
TVS diodes are solid-state devices designed specifically for transient suppression. They offer desirable characteristics for board level protection including fast response time, low operating and clamping voltage and no device degradation. The low profile SO-8 package allows the user to protect up to four independent lines with one package. The SMDAxx series is suitable protection for sensitive semiconductors components such as microprocessors, ASICs, transceivers, transducers, and CMOS memory.
The SMDAxx series devices may be used to meet the ESD immunity requirements of IEC 61000-4-2, level 4 for air and contact discharge.
- Working voltages: 5V, 12V, 15V and 24V
- Low leakage current
- Low operating and clamping voltages
- Solid-state silicon avalanche technology
## Mechanical Characteristics
- JEDEC SO-8 package
- Molding compound flammability rating: UL 94V-0
- Marking : Part number, date code, logo
- Packaging : Tube or Tape and Reel per EIA 481
## Applications
- RS-232 data lines
- Microprocessor based equipment
- Notebooks, Desktops, and Servers
- Instrumentation
- LAN/WAN equipment
- Peripherals
- Serial and Parallel Ports
## Schematic & PIN Configuration
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## SO-8 (Top View)
www.semtech.com
Revision 08/15/06
1
## SMDA05 through SMDA24
## **PROTECTION PRODUCTS**
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www.semtech.com
2005 Semtech Corp.
2
## SMDA05 through SMDA24
## PROTECTION PRODUCTS
## Electrical Characteristics _(Continued)_
|PROTECTION PRODUCTS
Electrical Characteristics_(Continued)_|PROTECTION PRODUCTS
Electrical Characteristics_(Continued)_|PROTECTION PRODUCTS
Electrical Characteristics_(Continued)_|PROTECTION PRODUCTS
Electrical Characteristics_(Continued)_|PROTECTION PRODUCTS
Electrical Characteristics_(Continued)_|PROTECTION PRODUCTS
Electrical Characteristics_(Continued)_|PROTECTION PRODUCTS
Electrical Characteristics_(Continued)_|
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www.semtech.com
2005 Semtech Corp.
3
SMDA05 through SMDA24
**PROTECTION PRODUCTS**
~~[~~ Typical Characteristics
## Non-Repetitive Peak Pulse Power vs. Pulse Time
**==> picture [233 x 155] intentionally omitted <==**
**----- Start of picture text -----**
10
PSE
1
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Pulse Duration - tp (µs)
(kW)
pk
Peak Pulse Power - P
**----- End of picture text -----**
## Power Derating Curve
**==> picture [235 x 154] intentionally omitted <==**
**----- Start of picture text -----**
110
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80
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20
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0 25 50 75 100 125 150
Ambient Temperature - TA ( [o] C)
PP
% of Rated Power or I
**----- End of picture text -----**
Pulse Waveform
**==> picture [233 x 158] intentionally omitted <==**
**----- Start of picture text -----**
110
100 a eeee W aveform
90 eee Parameters: tr = 8µs
td = 20µs
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30 | fo eee
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PP
Percent of I
**----- End of picture text -----**
ESD Pulse Waveform (IEC 61000-4-2)
## IEC 61000-4-2 Discharge Parameters
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www.semtech.com
4
2005 Semtech Corp.
SMDA05 through SMDA24
## PROTECTION PRODUCTS
## Applications Information
## Device Connection for Protection of Four Data Lines
The SMDAxx series of devices are designed to protect up to four data lines. The devices are connected as follows:
- The SMDAxx are unidirectional devices and are designed for use on lines where the normal operating voltage is above ground. Pins 1, 2, 3, and 4 are connected to the protected lines. Pins 5, 6, 7, and 8 are connected to ground. The ground connections should be made directly to the ground plane for best results. The path length is kept as short as possible to reduce the effects of parasitic inductance in the board traces.
## Circuit Board Layout Recommendations for Suppression of ESD.
Good circuit board layout is critical for the suppression of ESD induced transients. The following guidelines are recommended:
- Place the TVS near the input terminals or connectors to restrict transient coupling.
- Minimize the path length between the TVS and the protected line.
- Minimize all conductive loops including power and ground loops.
- The ESD transient return path to ground should be kept as short as possible.
- Never run critical signals near board edges.
- Use ground planes whenever possible.
## Circuit Diagram
|||||5
6
7
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|---|---|---|---|---|
|1|||||
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|3|||||
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|4|||||
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## I/O Line Protection
**==> picture [259 x 181] intentionally omitted <==**
## Matte Tin Lead Finish
Matte tin has become the industry standard lead-free replacement for SnPb lead finishes. A matte tin finish is composed of 100% tin solder with large grains. Since the solder volume on the leads is small compared to the solder paste volume that is placed on the land pattern of the PCB, the reflow profile will be determined by the requirements of the solder paste. Therefore, these devices are compatible with both lead-free and SnPb assembly techniques. In addition, unlike other lead-free compositions, matte tin does not have any added alloys that can cause degradation of the solder joint.
## Typical Connection
**==> picture [198 x 152] intentionally omitted <==**
**----- Start of picture text -----**
To Protected
Device
1 8
2 7
Ground
3 6
4 5
From Connector
**----- End of picture text -----**
www.semtech.com
2005 Semtech Corp.
5
SMDA05 through SMDA24
## **PROTECTION PRODUCTS**
## Outline Drawing - SO-8
**==> picture [492 x 185] intentionally omitted <==**
**----- Start of picture text -----**
A
e D h
N DIMENSIONS
INCHES MILLIMETERS
h DIM
2X E/2 H A MIN.053 NOM- MAX.069 MIN1.35 NOM- MAX1.75
A1 .004 - .010 0.10 - 0.25
E1 E PLANEGAGE c A2bc .049.012.007 --- .065.010.020 0.311.250.17 --- 0.511.650.25
ccc C 1 2 0.25 L 01 E1D .189.150 .193.154 .197.157 4.803.80 4.903.90 5.004.00
2X N/2 TIPS e/2 (L1) E .236 BSC 6.00 BSC
e .050 BSC 1.27 BSC
B DETAIL A h .010 - .020 0.25 - 0.50
L .016 .028 .041 0.40 0.72 1.04
L1 (.041) (1.04)
D N 8 8
01 0° - 8° 0° - 8°
aaa C aaa .004 0.10
SEATING A2 A SEE DETAIL A bbbccc .010.008 0.250.20
PLANE SIDE VIEW
C A1
bxN
bbb C A-B D
**----- End of picture text -----**
NOTES:
1. CONTROLLING DIMENSIONS ARE IN MILLIMETERS (ANGLES IN DEGREES). 2. DATUMS AND TO BE DETERMINED AT DATUM PLANE-A-B-H-
3. DIMENSIONS "E1" AND "D" DO NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS.
4. REFERENCE JEDEC STD MS-012, VARIATION AA.
## Land Pattern - SO-8
**==> picture [249 x 90] intentionally omitted <==**
**----- Start of picture text -----**
X
DIMENSIONS
DIM INCHES MILLIMETERS
C (.205) (5.20)
(C) G Z G .118 3.00
P .050 1.27
X .024 0.60
Y Y .087 2.20
Z .291 7.40
P
**----- End of picture text -----**
NOTES:
1. THIS LAND PATTERN IS FOR REFERENCE PURPOSES ONLY. CONSULT YOUR MANUFACTURING GROUP TO ENSURE YOUR COMPANY'S MANUFACTURING GUIDELINES ARE MET.
2. REFERENCE IPC-SM-782A, RLP NO. 300A.
www.semtech.com
2005 Semtech Corp.
6
SMDA05 through SMDA24
## PROTECTION PRODUCTS
## Ordering Information
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P
n
S|e
b
u
T
/
5
9|A
/
N|
|4
2
A
D
M
S|4
2|b
P
n
S|e
b
u
T
/
5
9|A
/
N|
|T.
5
0
A
D
M
S|5|e
e
rF
b
P|e
b
u
T
/
5
9|A
/
N|
|T.
2
1
A
D
M
S|2
1|e
e
rF
b
P|e
b
u
T
/
5
9|A
/
N|
|T.
5
1
A
D
M
S|5
1|e
e
rF
b
P|e
b
u
T
/
5
9|A
/
N|
|T.
4
2
A
D
M
S|4
2|e
e
rF
b
P|e
b
u
T
/
5
9|A
/
N|
Note: Lead-free devices are RoHS/WEEE Compliant
## Contact Information
Semtech Corporation Protection Products Division 200 Flynn Road, Camarillo, CA 93012 Phone: (805)498-2111 FAX (805)498-3804
www.semtech.com
2005 Semtech Corp.
7
## Links
- [View this product on Novapart](https://novapart.co/products/SMDA05.TBT/tvs-diode-smda-unidirectional-5-v-11-soic-8-pins)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/semtech/smda05-tbt/diode-tvs-5v/dp/1456396)
---
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