# Fuse, Surface Mount, 25 A, Medium Blow, 250 V, 72 V, 3912, 0678L Series

![Product image](https://novapart.co/image/farnell:2834799RL/)

**URL**: https://novapart.co/products/0678L9250-02/fuse-surface-mount-25-a-medium-blow-250-v-72-3912
**SKU**: 0678L9250-02
**Manufacturer**: BEL FUSE
**Category**: Circuit Protection || Fuses & Fuse Accessories || Fuses || SMD Fuses
**Price**: €0.3380
**Stock**: 100+
**Lead Time**: 78 days (indicative)

## Description

Fuse Current:25A; Product Range:0678L Series; Voltage Rating VAC:250V; Voltage Rating V DC:72V; Blow Characteristic:Medium Blow; Fuse Case Style:3912; Breaking Capacity Current AC:100A;

## Specifications

| Parameter | Value |
|---|---|
| Svhc | Lead (21-Jan-2025) |
| Fuse Current | 25A |
| Product Range | 0678L Series |
| Fuse Case Style | 3912 |
| Voltage Rating Vac | 250V |
| Voltage Rating Vdc | 72V |
| Blow Characteristic | Medium Blow |
| Breaking Capacity Current Ac | 100A |
| Breaking Capacity Current Dc | 130A |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:2834799RL/)

Type 0678L Square Ceramic Surface Mount Medium Blow Fuse 

0678L Series-3912 Size RoHS Compliant 

## **Features** 

- Medium blow, Surface mount high current fuse 

- Current rating from 10A to 30A 

- Wide operating temperature range from -55℃ to 125℃ 

- Tape & Reel for auto-insert SMD process 

- Compatible with 260℃, IR Pb-free solder process 

- RoHS compliant with exemption 7(a) 

Full compliance with EU Directive 2011/65/EU and amending directive 2015/863 

- Halogen Free, (MSL=1) 

- AEC-Q Compliant 

- Meets Bel automotive qualification* 

- - Largely based on internal AEC-Q test plan 

## **Applications** 

- Voltage regulator module 

- PC server 

- Office electronic equipment 

- Industrial equipment 

- Medical equipment 

- POE, POE+ 

- Power supply 

- DC-DC converter                                                                    HALOGEN FREE = 

## **Physical Specifications** 

Body : Ceramic 

Materials Terminations : Silver Plated Caps /Palladium Plated Caps On Fuse : ”Current Rating”, “L” – laser marked on ceramic tube, “bel” stamped in end caps. Marking On Label : "bel", "0678L", "Current Rating", "Voltage Rating", "Interrupting Rating", "Appropriate Safety Logos" and " ", " "(China RoHS compliant). ~~—=~~ **Safety Agency Approvalsy Agency Approvals Agency Approvalsgency Approvalsency Approvalsy Approvals Approvalspprovalsrovals** Safety Safety Agency Ampere  Rating/ Ampere Range / Volt Agency Certificate Voltage Rating @ I.R. ability* 10A-30A / 250V AC 10A-30A /250V @ 100A AC E506667 72V DC 125V @ 150A AC 72V @ 130A DC 65V @  300A DC *I.R.= Interrupting Rating = Short Circuit Rating(Amps) 

## **AEC-Q Compliant** 

**Electrical Characteristics** (UL/CSA STD.248-14) **Safety Agency Approvalsy Agency Approvals Agency Approvalsgency Approvalsency Approvalsy Approvals Approvalspprovalsrovals** 

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



POWER 

Specifications subject to change without notice 

**belfuse.com/circuit-protection** 

Please read our datasheet & drawing disclaimer here. 

**2** / **4** 

## Type 0678L 

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

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0678L - TIME CURRENT  CHARACTERISTIC CURVE<br>10<br>8 0 100000<br>= ee=a<br>£ 10000<br>eitee aisi e eenil<br>—aie m an<br>2 *|<br>® 55 1000 AWA=pe<br>35-25-15 -5 5 a6 ce ceive be oc ent 15125 195 145 100 AuSer e aooo e el<br>==<br>vases este:perature<br>Siaiiiiieaaii<br>feet<br>10<br>=====5<br>1 Bi eee<br>Bea cece<br>Bea=SS 5 oNeemert<br>0.1 a\\Weos<br>=—=—=e<br>AAA<br>p—VANXPSA = See<br>0.01 Pp = a S S S O R<br>10 100 1000<br>CURRENT IN AMPERES<br>10A 15A 20A 25A 30A<br>TIME IN SECONDS<br>**----- End of picture text -----**<br>


## **Electrical Specifications** 

|Part<br>Number|Ampere<br>Rating|Nominal Cold<br>Resistance<br>(ohms)|Nominal<br>Volt-drop<br>@100%In<br>(Volt) max.|Voltage and<br>Interrupting  Ratings|Melting I²T<br>@10 In<br>(A² Sec)<br>Min.|Nominal Power<br>Dissipation<br>(W)|Agency<br>Approvals|
|---|---|---|---|---|---|---|---|
|||||||||
|0678L9100-XX|10A|0.0056|0.18|See Table of Safety<br>Approvals on Page 1 for<br>Voltage and associated<br>Interrupting Ratings|50|1.8|Y|
|0678L9150-XX|15A|0.0036|0.12||110|1.8|Y|
|0678L9200-XX|20A|0.0025|0.09||270|1.8|Y|
|0678L9250-XX|25A|0.0019|0.08||420|2.0|Y|
|0678L9300-XX|30A|0.0013|0.07||1000|2.1|Y|



Consult manufacturer for other ratings XX-Packaging code (see “ordering information”) 

NOTES: 

Test Conditions 

For all 0678L data, as well as UL Component investigation, 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), 10mm wide and 100mm overall length. 

- UL Condition of Acceptability 

- The following information is contained in the UL Component Recognition for 0678L Fuse Series: 

The maximum temperature recorded in open air was 100℃ in a 21℃ ambient (79℃ rise). Consideration should be given to checking operating temperatures in end-use application with regard to thermal index of surrounding materials and components. (Maximum temperature recorded at 80% of rating (24A) for the 0678L 30 rating was 69℃ (48℃ rise). 

Caution: 

- Minimum fusing point: The 0678L Series fuse are 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. 

**==> picture [104 x 37] intentionally omitted <==**

**----- Start of picture text -----**<br>
eee. be<br>**----- End of picture text -----**<br>


Specifications subject to change without notice 

**Bel Fuse Inc.** 

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

300 Executive Drive, Suite 300 West Orange, NJ 07052 USA 

© 2025 Bel Fuse, Inc. 

Rev.0678L Feb2025 

**3** / **4** 

## Type 0678L 

## **Environmental Specifications** 

|Shock Resistance|MIL-STD-202G, Method 213B, Test Condition 1<br>(100 G's peak for 6 milliseconds; Sawtooth<br>waveform)|
|---|---|
|Vibration Resistance|)<br>MIL-STD-202G, Method 201A (10-55 Hz, 0.06<br>inch, totalexcursion).|
|Salt Spray Resistance|)<br>MIL-STD-202G, Method 101E, Test Condition B<br>(48hrs.).|
|Insulation Resistance|MIL-STD-202G, Method 302, Test Condition A<br>(AfterOpening)10,000 ohmsminimum.|
|Solderability|MIL-STD-202G, Method 208H|
|Resistance to solder Heat|MIL-STD-202G, Method 210F, Test Condition C.<br>Top Side (260℃, 20 sec)<br>MIL-STD-202G, Method 210F, Test Condition D.<br>Bottom Side (260℃, 10 sec)|
|Thermal Shock|MIL-STD-202G, Method 107G, Test Condition B<br>(-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<br>10% operating power for 1000hrs.|
|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<br>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|



## **Soldering Parameters** 

|IR Reflow Profile (IPC/JEDEC J-STD-020D)|IR Reflow Profile (IPC/JEDEC J-STD-020D)|
|---|---|
|**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℃max|
|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.|



|Lead-free Wave Soldering Profile|Lead-free Wave Soldering Profile|
|---|---|
|Wave Soldering Parameter||
|Average ramp-up rate|200℃/ second|
|Heating rate during preheat|typical 1 - 2℃/ second<br>Max 4℃/ second|
|Final preheat temperature|within 125℃of<br>solderingtemperature|
|Peak temperature Tp|260℃|
|Time within +0℃/ -5℃of actual<br>peak temperature|10 seconds|
|Ramp-down rate|5℃/ second max.|



Specifications subject to change without notice 

**Bel Fuse Inc.** +1 201.432.0463 300 Executive Drive, Suite 300 Bel.US.CS@belf.com West Orange, NJ 07052 USA **belfuse.com/circuit-protection** 

© 2025 Bel Fuse, Inc. 

Rev.0678L Feb2025 

**4** / **4** 

## Type 0678L 

## **Fuse FGNO Explanation 0678L [XXXX] -XX 0678L=0678L Series; [XXXX]=Ampere Rating; XX=See Ordering Information as below** 

|Amps|Bel FGNO[XXXX]|
|---|---|
|10|9100|
|15|9150|
|20|9200|
|25|9250|
|30|9300|



## **Mechanical Dimensions Ordering Information** 

## **Packaging** 

|Packaging Tape & Reel|Packaging Specification|Quantity|Quantity & Packaging Code|
|---|---|---|---|
|16mm wide tape with 13 inches Diameter reel|EIA Standard 481-E|2000|2|



**==> picture [205 x 35] intentionally omitted <==**

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Agee POWER<br>ng I,<br>cc @ be [ SOLUTIONS &<br>**----- End of picture text -----**<br>


Specifications subject to change without notice 

**Bel Fuse Inc.** 300 Executive Drive, Suite 300 West Orange, NJ 07052 USA 

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

© 2025 Bel Fuse, Inc. 

Rev.0678L Feb2025 



## Links

- [View this product on Novapart](https://novapart.co/products/0678L9250-02/fuse-surface-mount-25-a-medium-blow-250-v-72-3912)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/bel-fuse-circuit-protection/0678l9250-02/fuse-smd-25a-medium-blow-3912/dp/2834799RL)
---

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