0678 Surface-Mount Fuses

Bel Fuse 0678 Surface-Mount Fuses feature two types: fast-blow fuses and enhanced-breaking capability brick fuses. These fuses operate from 500mA to 5A for the 0678D series and from 500mA to 40A for the 0678H series. Bel Fuse 0678 Surface-Mount Fuses are compatible with +260ºC, IR Pb-free solder process. These fuses are constructed in 3912 case sizes with a ceramic tube/end cap. Bel Fuse 0678 Surface-Mount Fuses are suitable for voltage regulator modules, PC servers, office electronic equipment, power supplies, and industrial, medical, and mass storage systems.

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Description Datasheet Availability Pricing (GBP) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Series
Product
Fuse Type
Current Rating
Voltage Rating AC
Voltage Rating DC
Interrupt Rating
Fuse Size/Group
Minimum Operating Temperature
Maximum Operating Temperature
Packaging
Resistance
Bel Fuse Surface Mount Fuses 3921 Surface Mt Fuse 4A
Datasheet
9,734In Stock
Min.: 1
Mult.: 1
Reel: 2,000

0678H Surface Mount Fuses Fast Blow 4 A 250 VAC 125 VDC 300 A, 2 kA 3912 - 55 C + 125 C Reel, Cut Tape 21 mOhms
Bel Fuse Surface Mount Fuses 3939 Surface Mt Fuse 3.15A
Datasheet
3,121In Stock
Min.: 1
Mult.: 1
Reel: 2,000

0678D Surface Mount Ceramic Fuses Fast Blow 3.15 A 350 VAC 125 VDC 100 A, 2 kA 3912 - 55 C + 125 C Reel, Cut Tape 35 mOhms
Bel Fuse Surface Mount Fuses 3918 Surface Mt Fuse 2A
Datasheet
1,571In Stock
Min.: 1
Mult.: 1
Reel: 2,000

0678H Surface Mount Fuses Fast Blow 2 A 250 VAC 125 VDC 300 A, 2 kA 3912 - 55 C + 125 C Reel, Cut Tape 59 mOhms
Bel Fuse Surface Mount Fuses 3924 Surface Mt Fuse 8A
Datasheet
2,037In Stock
Min.: 1
Mult.: 1
Reel: 2,000

0678H Surface Mount Fuses Fast Blow 8 A 250 VAC 125 VDC 100 A, 1.5 kA 3912 - 55 C + 125 C Reel, Cut Tape 10 mOhms
Bel Fuse Surface Mount Fuses 3915 Surface Mt Fuse 1A
Datasheet
538In Stock
Min.: 1
Mult.: 1
Reel: 2,000

0678H Surface Mount Fuses Fast Blow 1 A 250 VAC 125 VDC 300 A, 2 kA 3912 - 55 C + 125 C Reel, Cut Tape 210 mOhms
Bel Fuse Surface Mount Fuses 3919 Surface Mt Fuse 2.5A
Datasheet
900In Stock
Min.: 1
Mult.: 1
Reel: 2,000

0678H Surface Mount Fuses Fast Blow 2.5 A 250 VAC 125 VDC 300 A, 2 kA 3912 - 55 C + 125 C Reel, Cut Tape 43 mOhms
Bel Fuse Surface Mount Fuses 3937 Surface Mt Fuse 2A
Datasheet
929In Stock
Min.: 1
Mult.: 1
Reel: 2,000

0678D Surface Mount Ceramic Fuses Fast Blow 2 A 350 VAC 125 VDC 100 A, 2 kA 3912 - 55 C + 125 C Reel, Cut Tape 59 mOhms
Bel Fuse Surface Mount Fuses 3917 Surface Mt Fuse 1.6A
Datasheet
258In Stock
Min.: 1
Mult.: 1
Reel: 2,000

0678H Surface Mount Fuses Fast Blow 1.6 A 250 VAC 125 VDC 300 A, 2 kA 3912 - 55 C + 125 C Reel, Cut Tape 80 mOhms
Bel Fuse Surface Mount Fuses 3920 Surface Mt Fuse 3.15A
Datasheet
1,905In Stock
Min.: 1
Mult.: 1
Reel: 2,000

0678H Surface Mount Fuses Fast Blow 3.15 A 250 VAC 125 VDC 300 A, 2 kA 3912 - 55 C + 125 C Reel, Cut Tape 35 mOhms
Bel Fuse Surface Mount Fuses 3930 Surface Mt Fuse 40A
Datasheet
3,456In Stock
6,000Expected 26/02/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2,000

0678H Surface Mount Fuses Fast Blow 40 A 250 VAC 125 VDC 100 A, 1 kA 3912 - 55 C + 125 C Reel, Cut Tape, MouseReel 1.5 mOhms
Bel Fuse Surface Mount Fuses 3931 Surface Mt Fuse 500mA
Datasheet
1,589In Stock
Min.: 1
Mult.: 1
Reel: 2,000

0678D Surface Mount Ceramic Fuses Fast Blow 500 mA 350 VAC 125 VDC 100 A, 2 kA 3912 - 55 C + 125 C Reel, Cut Tape 660 mOhms
Bel Fuse Surface Mount Fuses 3934 Surface Mt Fuse 1A
Datasheet
292In Stock
2,000Expected 19/03/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2,000

0678D Surface Mount Ceramic Fuses Fast Blow 1 A 350 VAC 125 VDC 100 A, 2 kA 3912 - 55 C + 125 C Reel, Cut Tape, MouseReel 210 mOhms
Bel Fuse Surface Mount Fuses 3912 Surface Mt Fuse 500mA
Datasheet
2,984In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2,000
0678H Surface Mount Fuses Fast Blow 500 mA 250 VAC 125 VDC 300 A, 2 kA 3912 - 55 C + 125 C Reel, Cut Tape, MouseReel 660 mOhms
Bel Fuse Surface Mount Fuses 3913 Surface Mt Fuse 630 mA
Datasheet
1,413In Stock
Min.: 1
Mult.: 1
Reel: 2,000

0678H Surface Mount Fuses Fast Blow 630 mA 250 VAC 125 VDC 300 A, 2 kA 3912 - 55 C + 125 C Reel, Cut Tape 540 mOhms
Bel Fuse Surface Mount Fuses 3916 Surface Mt Fuse 1.25A
Datasheet
2,054In Stock
Min.: 1
Mult.: 1
Reel: 2,000

0678H Surface Mount Fuses Fast Blow 1.25 A 250 VAC 125 VDC 300 A, 2 kA 3912 - 55 C + 125 C Reel, Cut Tape 100 mOhms
Bel Fuse Surface Mount Fuses 3922 Surface Mt Fuse 5A
Datasheet
1,480In Stock
2,000Expected 19/03/2026
Min.: 1
Mult.: 1
Reel: 2,000

0678H Surface Mount Fuses Fast Blow 5 A 250 VAC 125 VDC 300 A, 2 kA 3912 - 55 C + 125 C Reel, Cut Tape 16 mOhms
Bel Fuse Surface Mount Fuses 3923 Surface Mt Fuse 6.3A
Datasheet
1,273In Stock
2,000Expected 21/05/2026
Min.: 1
Mult.: 1
Reel: 2,000

0678H Surface Mount Fuses Fast Blow 6.3 A 250 VAC 125 VDC 100 A, 1.5 kA 3912 - 55 C + 125 C Reel, Cut Tape 13 mOhms
Bel Fuse Surface Mount Fuses 3925 Surface Mt Fuse 10A
Datasheet
1,742In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2,000

0678H Surface Mount Fuses Fast Blow 10 A 250 VAC 125 VDC 100 A, 1.5 kA 3912 - 55 C + 125 C Reel, Cut Tape, MouseReel 6 mOhms
Bel Fuse Surface Mount Fuses 3926 Surface Mt Fuse 15A
Datasheet
1,526In Stock
2,000Expected 23/04/2026
Min.: 1
Mult.: 1
Reel: 2,000

0678H Surface Mount Fuses Fast Blow 15 A 250 VAC 125 VDC 100 A, 1.5 kA 3912 - 55 C + 125 C Reel, Cut Tape 4.1 mOhms
Bel Fuse Surface Mount Fuses 3927 Surface Mt Fuse 20A
Datasheet
2,000In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2,000

0678H Surface Mount Fuses Fast Blow 20 A 250 VAC 125 VDC 100 A, 1.5 kA 3912 - 55 C + 125 C Reel, Cut Tape, MouseReel 2.8 mOhms
Bel Fuse Surface Mount Fuses 3928 Surface Mt Fuse 25A
Datasheet
1,984In Stock
2,000Expected 08/04/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2,000

0678H Surface Mount Fuses Fast Blow 25 A 250 VAC 125 VDC 100 A, 1 kA 3912 - 55 C + 125 C Reel, Cut Tape, MouseReel 2.3 mOhms
Bel Fuse Surface Mount Fuses 3929 Surface Mt Fuse 30A
Datasheet
3,983Expected 26/02/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2,000

0678H Surface Mount Fuses Fast Blow 30 A 250 VAC 125 VDC 100 A, 1 kA 3912 - 55 C + 125 C Reel, Cut Tape, MouseReel 1.5 mOhms
Bel Fuse Surface Mount Fuses 3932 Surface Mt Fuse 630mA
Datasheet
Non-Stocked Lead-Time 8 Weeks
Min.: 2,000
Mult.: 2,000
Reel: 2,000

0678D Surface Mount Ceramic Fuses Fast Blow 630 mA 350 VAC 125 VDC 100 A, 2 kA 3912 - 55 C + 125 C Reel 540 mOhms
Bel Fuse Surface Mount Fuses 3933 Surface Mt Fuse 800mA
Datasheet
Non-Stocked Lead-Time 8 Weeks
Min.: 2,000
Mult.: 2,000
Reel: 2,000

0678D Surface Mount Ceramic Fuses Fast Blow 800 mA 350 VAC 125 VDC 100 A, 2 kA 3912 - 55 C + 125 C Reel 380 mOhms
Bel Fuse Surface Mount Fuses 3935 Surface Mt Fuse 1.25A
Datasheet
Non-Stocked Lead-Time 8 Weeks
Min.: 2,000
Mult.: 2,000
Reel: 2,000

0678D Surface Mount Ceramic Fuses Fast Blow 1.25 A 350 VAC 125 VDC 100 A, 2 kA 3912 - 55 C + 125 C Reel 100 mOhms