154 Series OMNI-BLOK® Fuse & Holder Assemblies

Littelfuse 154 Series OMNI-BLOK® Fuse and Holder Assemblies offer a solution for efficient installation and easy replacement of miniature Nano2® surface-mount fuses. These devices include very fast-acting and time-lag options, easy fuse replacement, 260°C reflow capable fuse holder, and heat-resistant fuse holder. The 154 fuse and holder assemblies are RoHS-compliant and Halogen-free. These holders are sized to fit a range of Nano-type fuses. The 154 OMNI-BLOK fuse and holder assemblies operate at a temperature range of -55°C to 125°C and are UL/CSA/NMX 248-1, UL/CSA/NMX 248-14, and UL/CSA/NMX 4248-1 recognized.

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Description Datasheet Availability Pricing (CAD) 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
Littelfuse Surface Mount Fuses Fuseblck w/ fuse.63A OMNI BLOK 154
Datasheet
1,474In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,500

154 Surface Mount Fuse with Fuse Holders Fast Blow 630 mA 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC 9.73 mm x 5.03 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 305 mOhms
Littelfuse Surface Mount Fuses Fuseblck w/ fuse.75A OMNI BLOK 154
Datasheet
5,604In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,500

154 Surface Mount Fuse with Fuse Holders Fast Blow 750 mA 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC 9.73 mm x 5.03 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 245 mOhms
Littelfuse Surface Mount Fuses ACS SMF OMNI-BLOK VFA RoHS 260C .750A
Datasheet
1,215In Stock
1,500Expected 2026-06-22
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,500

154 Surface Mount Fuse with Fuse Holders Fast Blow 750 mA 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC 9.73 mm x 5.03 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 245 mOhms
Littelfuse Surface Mount Fuses Fuseblck w/ fuse .8A OMNI BLOK 154
Datasheet
2,162In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,500

154 Surface Mount Fuse with Fuse Holders Fast Blow 800 mA 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC 9.73 mm x 5.03 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 212 mOhms
Littelfuse Surface Mount Fuses ACS SMF OMNI-BLOK SB RoHS 260C 1A
Datasheet
4,518In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,500

154 Surface Mount Fuse with Fuse Holders Time Delay / Slow Blow 1 A 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC 9.73 mm x 5.03 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 225 mOhms
Littelfuse Surface Mount Fuses Fuseblock w/ fuse 2A OMNI BLOK 154
Datasheet
6,148In Stock
35,700On Order
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,500

154 Surface Mount Fuse with Fuse Holders Fast Blow 2 A 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC 9.73 mm x 5.03 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 36.7 mOhms
Littelfuse Surface Mount Fuses ACS SMF OMNI-BLOK VFA RoHS 260C 2A
Datasheet
3,006In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,500

154 Surface Mount Fuse with Fuse Holders Fast Blow 2 A 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC 9.73 mm x 5.03 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 36.7 mOhms
Littelfuse Surface Mount Fuses Fuseblock w/ fuse 3A OMNI BLOK 154
Datasheet
3,343In Stock
16,395On Order
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,500

154 Surface Mount Fuse with Fuse Holders Fast Blow 3 A 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC 9.73 mm x 5.03 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 22.7 mOhms
Littelfuse Surface Mount Fuses ACS SMF OMNI-BLOK VFA RoHS 260C 3A
Datasheet
1,809In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,500

154 Surface Mount Fuse with Fuse Holders Fast Blow 3 A 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC 9.73 mm x 5.03 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 22.7 mOhms
Littelfuse Surface Mount Fuses ACS SMF OMNI-BLOK SB RoHS 260C 3A
Datasheet
943In Stock
1,500Expected 2026-03-17
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,500

154 Surface Mount Fuse with Fuse Holders Time Delay / Slow Blow 3 A 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC 9.73 mm x 5.03 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 34 mOhms
Littelfuse Surface Mount Fuses Fuseblock w/ fuse 4A OMNI BLOK 154
Datasheet
8,462In Stock
4,500Expected 2026-04-14
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,500

154 Surface Mount Fuse with Fuse Holders Fast Blow 4 A 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC 9.73 mm x 5.03 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 16 mOhms
Littelfuse Surface Mount Fuses ACS SMF OMNI-BLOK SB RoHS 260C 4A
Datasheet
1,545In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,500

154 Surface Mount Fuse with Fuse Holders Time Delay / Slow Blow 4 A 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC 9.73 mm x 5.03 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 18.6 mOhms
Littelfuse Surface Mount Fuses Fuseblock w/ fuse 5A OMNI BLOK 154
Datasheet
11,109In Stock
11,800On Order
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,500

154 Surface Mount Fuse with Fuse Holders Fast Blow 5 A 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC 9.73 mm x 5.03 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 12.5 mOhms
Littelfuse Surface Mount Fuses ACS SMF OMNI-BLOK VFA RoHS 260C 5A
Datasheet
1,087In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,500

154 Surface Mount Fuse with Fuse Holders Fast Blow 5 A 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC 9.73 mm x 5.03 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 12.5 mOhms
Littelfuse Surface Mount Fuses Fuseblock w/ fuse 5A OMNI BLOK 154T
Datasheet
8,731In Stock
39,000On Order
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,500

154 Surface Mount Fuse with Fuse Holders Time Delay / Slow Blow 5 A 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC 9.73 mm x 5.03 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 13.6 mOhms
Littelfuse Surface Mount Fuses ACS SMF OMNI-BLOK SB RoHS 260C 5A
Datasheet
1,741In Stock
1,500Expected 2026-06-16
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,500

154 Surface Mount Fuse with Fuse Holders Time Delay / Slow Blow 5 A 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC 9.73 mm x 5.03 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 13.6 mOhms
Littelfuse Surface Mount Fuses Fuseblock w/ fuse 7A OMNI BLOK 154
Datasheet
1,889In Stock
5,950On Order
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,500

154 Surface Mount Fuse with Fuse Holders Fast Blow 7 A 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC 9.73 mm x 5.03 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 9 mOhms
Littelfuse Surface Mount Fuses ACS SMF OMNI-BLOK SB RoHS 7A
Datasheet
2,890In Stock
17,917On Order
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,500

154 Surface Mount Fuse with Fuse Holders Time Delay / Slow Blow 7 A 72 VAC 60 VDC 50 A at 72 VAC, 50 A at 60 VDC 9.73 mm x 5.03 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 10.5 mOhms
Littelfuse Surface Mount Fuses ACS SMF OMNI-BLOK SB ROHS 260C 7A
Datasheet
1,422In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,500

154 Surface Mount Fuse with Fuse Holders Time Delay / Slow Blow 7 A 72 VAC 60 VDC 50 A at 72 VAC, 50 A at 60 VDC 9.73 mm x 5.03 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 10.5 mOhms
Littelfuse Surface Mount Fuses Fuseblck w/ fuse1.5A OMNI BLOK 154T
Datasheet
3,358In Stock
3,000Expected 2026-04-21
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,500

154 Surface Mount Fuse with Fuse Holders Time Delay / Slow Blow 1.5 A 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC 9.73 mm x 5.03 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 93 mOhms
Littelfuse Surface Mount Fuses Fuseblck w/ fuse1.6A OMNI BLOK 154
Datasheet
1,266In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,500

154 Surface Mount Fuse with Fuse Holders Fast Blow 1.6 A 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC 9.73 mm x 5.03 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 58 mOhms
Littelfuse Surface Mount Fuses Fuseblck w/ fuse2.5A OMNI BLOK 154
Datasheet
9,012In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,500

154 Surface Mount Fuse with Fuse Holders Fast Blow 2.5 A 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC 9.73 mm x 5.03 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 28.6 mOhms
Littelfuse Surface Mount Fuses Fuseblck w/ fuse3.5A OMNI BLOK 154T
Datasheet
1,298In Stock
4,500On Order
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,500

154 Surface Mount Fuse with Fuse Holders Time Delay / Slow Blow 3.5 A 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC 9.73 mm x 5.03 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 22.4 mOhms
Littelfuse Surface Mount Fuses Fuseblck w/fuse3.15A OMNI BLOK 154
Datasheet
1,305In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,500

154 Surface Mount Fuse with Fuse Holders Fast Blow 3.15 A 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC 9.73 mm x 5.03 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 21.5 mOhms
Littelfuse Surface Mount Fuses Fuseblck w/ fuse.16A OMNI BLOK 154
Datasheet
252In Stock
1,500Expected 2026-03-20
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,500

154 Surface Mount Fuse with Fuse Holders Fast Blow 160 mA 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC 9.73 mm x 5.03 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 1.2157 Ohms