0678D5000-02

## Type 0678D Square Ceramic Surface Mount Fast Blow Fuse 

0678D Series-3912 Size RoHS Compliant 

## **Features** 

- Fast blow, Surface mount high breaking capacity (350V AC/125V DC) 

- Current rating from 500mA to 5A 

- 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 

- Mass storage systems                                                          HALOGEN FREE = 

## **AEC-Q Compliant** 

## **Physical Specifications** 

Body : Ceramic Materials Terminations : Silver Plated Caps /Palladium Plated Caps On Fuse : ”Current Rating”, “D” – laser marked on ceramic tube, “bel” stamped in end caps. Marking On Label : "bel", "0678D", "Current Rating", "Voltage Rating", "Interrupting Rating", "Appropriate Safety Logos" and " ", " "(China RoHS compliant). ~~—~~ 

|**Electrical Characteristics**(UL/CSA STD.248-14) **Safety Agency Approvals**|**Electrical Characteristics**(UL/CSA STD.248-14) **Safety Agency Approvals**|**Electrical Characteristics**(UL/CSA STD.248-14) **Safety Agency Approvals**|**Electrical Characteristics**(UL/CSA STD.248-14) **Safety Agency Approvals**|**Safety Agency Approvals**|**Safety Agency Approvals**|**Safety Agency Approvals**|**Safety Agency Approvals**|
|---|---|---|---|---|---|---|---|
||Testing Current|Blow  Time<br>Minimum<br>Maximum|||Safety<br>Agency|Safety Agency<br>Certificate|Ampere  Rating/<br>Voltage Rating|
||100%<br>200%|4 hrs.<br>N/A<br>N/A<br>60 sec|||||500mA-1A/350V AC<br>250V DC|



|Safety<br>Agency|Safety Agency<br>Certificate|Ampere  Rating/<br>Voltage Rating|Ampere Range / Volt<br>@ I.R. ability*|
|---|---|---|---|
||E506667|500mA-1A/350V AC<br>250V DC<br>> 1A-5A/350V AC<br>125V DC|500mA-1A/350V @100A AC<br>250V@100A DC<br>125V@2000A DC<br>>1A-5A/350V@100A AC<br>125V@2000A DC|
|*I.R.=Interrupting Rating=Short Circuit Rating(Amps)||||



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POWER<br>**----- End of picture text -----**<br>


Specifications subject to change without notice 

**belfuse.com/circuit-protection** 

**2** / **4** 

## Type 0678D 

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

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em<br>E 120;<br>B00.<br>to<br>8 70:<br>**----- End of picture text -----**<br>


## **Electrical Specifications** 

|Part<br>Number|Ampere<br>Rating|Nominal Cold<br>Resistance<br>(ohms)|Volt-drop<br>@100%In<br>(Volt)<br>Max.|Voltage and<br>Interrupting  Ratings|Melting I²T<br>@10 In<br>(A² Sec)|Power<br>Dissipation<br>(W)<br>Max|Agency<br>Approvals|
|---|---|---|---|---|---|---|---|
|||||||||
|0678D0500-XX|500mA|0.66|1.00|See Table of Safety Approvals<br>on Page 1 for Voltage and<br>associated Interrupting<br>Ratings|0.03|0.5|Y|
|0678D0630-XX|630mA|0.54|1.30||0.06|0.8|Y|
|0678D0800-XX|800mA|0.38|1.10||0.08|0.9|Y|
|0678D1000-XX|1A|0.21|0.70||0.3|0.7|Y|
|0678D1250-XX|1.25A|0.10|0.20||0.4|0.3|Y|
|0678D1600-XX|1.6A|0.08|0.19||0.5|0.3|Y|
|0678D2000-XX|2A|0.059|0.18||0.9|0.4|Y|
|0678D2500-XX|2.5A|0.043|0.18||1.6|0.5|Y|
|0678D3150-XX|3.15A|0.035|0.18||2.6|0.6|Y|
|0678D4000-XX|4A|0.021|0.18||7.5|0.7|Y|
|0678D5000-XX|5A|0.016|0.18||9.0|0.9|Y|



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

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BOseee  bel SOLUTIONSPOWER  &<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. 0678D Feb2025 

**3** / **4** 

## Type 0678D 

## **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** 

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IR Reflow Profile (IPC/JEDEC J-STD-020D)<br>Preheat & Soak<br>Temperature min (Tsmin)  150℃<br>Temperature max (Tsmax)  200℃<br>Time (Tsmin to Tsmax) (ts) 60-120 seconds<br>Average ramp-up rate(Tsmax to Tp)  3℃ / second max.<br>Liquidous temperature(TL)  217℃<br>Time at liquidous (tL) 60 – 150 seconds<br>Peak temperature (Tp)  260℃ max<br>Time (tp) within 5℃ of the specified<br>30 seconds<br>classification temperature (Tc)<br>Average ramp-down rate(Tp to Tsmax)  6℃ / second max.<br>Time 25℃ to peak temperature  8 minutes max.<br>**----- End of picture text -----**<br>


|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** 

+1 201.432.0463 Bel.US.CS@belf.com 

© 2025 Bel Fuse, Inc. 

Rev. 0678D Feb2025 

**4** / **4** 

## Type 0678D 

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

|Fraction|Decimal|Milliamps|Bel FGNO[XXXX]|
|---|---|---|---|
|1/2|0.500|500|0500|
||.630|630|0630|
|8/10|.800|800|0800|



|Fraction|Decimal|Amps|Bel FGNO[XXXX]|
|---|---|---|---|
||1.0|1|1000|
|1-1/4|1.25|1.25|1250|
||1.60|1.6|1600|
||2.0|2|2000|
|2-1/2|2.5|2.5|2500|
||3.15|3.15|3150|
||4.0|4|4000|
||5.0|5|5000|



## **Mechanical Dimensions Ordering Information** 

## **Packaging** 

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



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. 0678D Feb2025