0684L9400-01

## Type 0684L 40A Square Ceramic Surface Mount Fast Blow Fuse 

0684L 40A - 4818 Size RoHS Compliant 

## **Features** 

- 350V AC Voltage Rating 

- Wide operating temperature range 

- Tape & Reel for auto-insert SMD process 

- 260℃ IR compatible 

- RoHS compliant with exemption 7(a) Full compliance with EU Directive 2011/65/EU and amending directive 2015/863 

- - Halogen Free 

- AEC-Q Compliant 

- Meets Bel automotive qualification* 

- - Largely based on internal AEC-Q test plan 

## **Applications** 

- Lighting system 

- LCD monitor 

- Office electronic equipment 

- Industrial equipment 

- Medical equipment 

- Power supply HALOGEN FREE = 

## **Physical Specifications** 

ch le Ce **AEC-Q Compliant** 

Body : Ceramic Materials Terminations :  Silver Plated Caps/ /Gold Plated Caps/Palladium Plated Caps On Fuse : ~~=~~~ “40A”,”350V” in green color. “bel”, stamped in end caps. Marking On Label : "bel", "0684L", "Current Rating", "Voltage Rating", "Interrupting Rating", “ " and " ", " "(China RoHS compliant). ~~- v~~ 

## **Electrical Characteristics** (UL/CSA STD.248-14) **Safety Agency Approvals** 

|Testing Current|Blow  Time|Blow  Time|
|---|---|---|
||Minimum|Maximum|
|100%|4 hrs.|N/A|
|200%|N/A|60 sec|



|Safety<br>Agency|Safety Agency<br>Certificate|Ampere  Rating /<br>Voltage Rating|Ampere Range / Volt<br>@ I.R. ability*|
|---|---|---|---|
||E20624|40A / 350V AC|40A /350V @ 250A AC<br>125V @ 1000A AC<br>125V @ 1000A DC|
|*I.R.=Interrupting Rating=Short Circuit Rating(Amps)||||



*I.R.= Interrupting Rating = Short Circuit Rating(Amps) 

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Specifications subject to change without notice 

**belfuse.com/circuit-protection** 

**2** / **4** 

## Type 0684L 40A 

## **Environmental Specifications** 

|Shock Resistance|MIL-STD-202G, Method 213B, Test Condition 1<br>(100 G'speak for 6 milliseconds; Sawtooth waveform)|
|---|---|
|Vibration Resistance|MIL-STD-202G, Method 201A (10-55 Hz, 0.06 inch, total excursion).|
|Salt SprayResistance|MIL-STD-202G, Method 101E, Test Condition B(48 hrs.).|
|Solderability|MIL-STD-202G, Method 208H|
|Resistance to solder Heat|MIL-STD-202G, Method 210F, Test Condition J  (260℃,10 sec)|
|Thermal Shock|MIL-STD-202G, Method 107G, Test Condition B  (-65℃to +125℃).|
|Operating Temperature|-55℃to +125℃|
|Moisture SensitivityLevel|1(Accordingto IPC J-Std-020)|
|||
|High temperature storage|MIL-STD-202 Method 108|
|Temperature cycling|JESD22 Method JA-104,Test Condition B|
|Biased humidity|MIL-STD-202 Method 103, 85C/85% RH with 10% operating power for 1000 hrs.|
|Operational life|MIL-STD-202 Method 108, Test Condition D|
|Resistance to solvents|MIL-STD-202 Method 215|
|Mechanical shock|MIL-STD-202 Method 213,Test Condition C|
|Vibration|MIL-STD-202 Method 204|
|Resistance to soldering heat|MIL-STD-202 Method 210,Test condition B|
|Thermal shock|MIL-STD-202 Method 107|
|Solderability|J-STD-002|
|Board flex(SMD)|AEC-Q200-005|
|Terminal strength|AEC-Q200-006|
|Electrical characterization|3 temperature electrical|



## **Electrical Specifications** 

|Part<br>Number|Ampere<br>Rating|Nominal Cold<br>Resistance<br>(ohms)|Nominal<br>Volt-drop<br>@100%In<br>(Volt)|Voltage and<br>Interrupting  Ratings|Melting I²T<br>@10 In<br>(A²  Sec)<br>Min.|Agency  Approvals|
|---|---|---|---|---|---|---|
||||||||
|0684L9400-X1|40A|0.0016|0.15|See Table of Safety<br>Approvals on Page 1 for<br>Voltage and associated<br>Interrupting Ratings|195|Y|



Consult manufacturer for other ratings 

## NOTES: 

## Test Conditions 

All tests were conducted with fuse samples soldered on a PCB (1.6mm thick) test board with copper traces measuring 0.1mm nominal thickness (3 oz. clad), 25.4mm wide and 100mm overall length. 

The maximum temperature recorded in open air was 135 ℃ in a 25 ℃ ambient (110 ℃ rise). Consideration should be given to checking operating temperatures in end-use application with regard to thermal index of surrounding materials and components. 

## Remark: The marking on fuse shall be facing upward on PCB. 

## Caution: 

- Minimum fusing point: The 0684L 40A fuse is NOT intended to be operated at currents between 100% and 200% of ampere rating. Prolonged operation at currents in this range may result in overheating of the fuse and/or desoldering of the fuse caps from the PCB pad. 

Specifications subject to change without notice 

**Bel Fuse Inc.** 

+1 201.432.0463 Bel.US.CS@belf.com **belfuse.com/circuit-protection** 

206 Van Vorst Street Jersey City, NJ 07302 USA 

© 2023 Bel Fuse, Inc. 

Rev.0684L 40A Apr2023 

**3** / **4** 

## Type 0684L 40A 

## **Temperature Derating Curve                 Average Time Current Curve** 

## **Soldering Parameters** 

|IR Reflow Profile|IR Reflow Profile|
|---|---|
|**Preheat & Soak**<br>Temperature min (Tsmin)<br>Temperature max (Tsmax)<br>Time (Tsminto Tsmax) (ts)|150℃<br>200℃<br>60-120 seconds|
|Average ramp-up rate(Tsmaxto Tp)|3℃/ second max.|
|Liquidous temperature(TL)<br>Time at liquidous(tL)|217℃<br>60 – 150 seconds|
|Peak temperature (Tp)|260℃<br>max,30seconds|
|Time (tp) within 5℃of the specified<br>classification temperature(Tc)|30 seconds|
|Average ramp-down rate(Tpto Tsmax)|6℃/ second max.|
|Time 25℃to peak temperature|8 minutes max.|



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Specifications subject to change without notice 

**Bel Fuse Inc.** 206 Van Vorst Street Jersey City, NJ 07302 USA 

+1 201.432.0463 Bel.US.CS@belf.com **belfuse.com/circuit-protection** 

© 2023 Bel Fuse, Inc. 

Rev.0684L 40A Apr2023 

**4** / **4** 

## Type 0684L 40A 

## **Mechanical Dimensions                                   Ordering Information** 

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## **Packaging** 

|Packaging Tape & Reel|Packaging Specification|Quantity|Quantity & Packaging Code|
|---|---|---|---|
|24mm wide tape with 13 inches Diameter reel|EIA Standard 481-E|1500|X1|



## Specifications subject to change without notice 

**Bel Fuse Inc.** 

+1 201.432.0463 Bel.US.CS@belf.com **belfuse.com/circuit-protection** 

206 Van Vorst Street Jersey City, NJ 07302 USA © 2023 Bel Fuse, Inc. 

Rev.0684L 40A Apr2023