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 (KRW) 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 ACS SMF OMNI-BLOK SB RoHS 260C 1A
Datasheet
4,184In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

154 Surface Mount Fuse with Fuse Holders Time Delay / Slow Blow 1 A 125 VAC 125 VDC 50 A, 50 A 9.73 mm x 5.03 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 225 mOhms
Littelfuse Surface Mount Fuses ACS SMF OMNI-BLOK VFA RoHS 260C 4A
Datasheet
1,257In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

154 Surface Mount Fuse with Fuse Holders Fast Blow 4 A 125 VAC 125 VDC 50 A, 50 A 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 1.5A
Datasheet
361In Stock
1,500Expected 8/3/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

154 Surface Mount Fuse with Fuse Holders Time Delay / Slow Blow 1.5 A 125 VAC 125 VDC OMNI-BLOK Reel, Cut Tape, MouseReel 93 mOhms
Littelfuse Surface Mount Fuses Fuseblck w/ fuse.25A OMNI BLOK 154
Datasheet
15,124In Stock
12,000Expected 10/7/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

154 Surface Mount Fuse with Fuse Holders Fast Blow 250 mA 125 VAC 125 VDC 50 A, 50 A 9.73 mm x 5.03 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 1.05 Ohms
Littelfuse Surface Mount Fuses Fuseblck w/ fuse .5A OMNI BLOK 154
Datasheet
20,196In Stock
13,500Expected 9/10/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

154 Surface Mount Fuse with Fuse Holders Fast Blow 500 mA 125 VAC 125 VDC 50 A, 50 A 9.73 mm x 5.03 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 420 mOhms
Littelfuse Surface Mount Fuses Fuseblck w/ fuse .5A OMNI BLOK 154T
Datasheet
12,808In Stock
7,500Expected 10/7/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

154 Surface Mount Fuse with Fuse Holders Time Delay / Slow Blow 500 mA 125 VAC 125 VDC 50 A, 50 A 9.73 mm x 5.03 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 700 mOhms
Littelfuse Surface Mount Fuses Fuseblock w/ fuse 1A OMNI BLOK 154
Datasheet
21,586In Stock
55,500On Order
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

154 Surface Mount Fuse with Fuse Holders Fast Blow 1 A 125 VAC 125 VDC 50 A, 50 A 9.73 mm x 5.03 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 153 mOhms
Littelfuse Surface Mount Fuses Fuseblock w/ fuse 1A OMNI BLOK 154T
Datasheet
28,893In Stock
25,500Expected 11/5/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

154 Surface Mount Fuse with Fuse Holders Time Delay / Slow Blow 1 A 125 VAC 125 VDC 50 A, 50 A 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
36,175In Stock
25,500Expected 10/29/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

154 Surface Mount Fuse with Fuse Holders Fast Blow 2 A 125 VAC 125 VDC 50 A, 50 A 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 2A OMNI BLOK 154T SLOW
Datasheet
32,039In Stock
31,500On Order
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

154 Surface Mount Fuse with Fuse Holders Time Delay / Slow Blow 2 A 125 VAC 125 VDC 50 A, 50 A 9.73 mm x 5.03 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 62.5 mOhms
Littelfuse Surface Mount Fuses Fuseblock w/ fuse 3A OMNI BLOK 154T
Datasheet
35,156In Stock
60,000On Order
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

154 Surface Mount Fuse with Fuse Holders Time Delay / Slow Blow 3 A 125 VAC 125 VDC 50 A, 50 A 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
18,791In Stock
12,000Expected 11/10/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

154 Surface Mount Fuse with Fuse Holders Fast Blow 4 A 125 VAC 125 VDC 50 A, 50 A 9.73 mm x 5.03 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 16 mOhms
Littelfuse Surface Mount Fuses Fuseblock w/ fuse 5A OMNI BLOK 154T
Datasheet
34,537In Stock
28,500Expected 8/24/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

154 Surface Mount Fuse with Fuse Holders Time Delay / Slow Blow 5 A 125 VAC 125 VDC 50 A, 50 A 9.73 mm x 5.03 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 13.6 mOhms
Littelfuse Surface Mount Fuses Fuseblck w/ fuse3.5A OMNI BLOK 154T
Datasheet
6,870In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

154 Surface Mount Fuse with Fuse Holders Time Delay / Slow Blow 3.5 A 125 VAC 125 VDC 50 A, 50 A 9.73 mm x 5.03 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 22.4 mOhms
Littelfuse Surface Mount Fuses Fuseblck w/ fuse6.3A OMNI BLOK 154
Datasheet
13,766In Stock
10,500Expected 10/29/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

154 Surface Mount Fuse with Fuse Holders Fast Blow 6.3 A 125 VAC 125 VDC 50 A, 50 A 9.73 mm x 5.03 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 9.6 mOhms
Littelfuse Surface Mount Fuses ACS SMF OMNI-BLOK VFA RoHS 260C 6.3A
Datasheet
1,226In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

154 Surface Mount Fuse with Fuse Holders Fast Blow 6.3 A 72 VAC 60 VDC OMNI-BLOK Reel, Cut Tape, MouseReel
Littelfuse Surface Mount Fuses Fuseblck w/fuse.125A OMNI BLOK 154
Datasheet
999In Stock
4,500Expected 8/3/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

154 Surface Mount Fuse with Fuse Holders Fast Blow 125 mA 125 VAC 125 VDC 50 A, 50 A 9.73 mm x 5.03 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 78 mOhms
Littelfuse Surface Mount Fuses ACS SMF OMNI-BLOK VFA RoHS 260C .125A
Datasheet
1,241In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

154 Surface Mount Fuse with Fuse Holders Fast Blow 125 mA 125 VAC 125 VDC 50 A, 50 A 9.73 mm x 5.03 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 1.7 Ohms
Littelfuse Surface Mount Fuses Fuseblck w/ fuse.16A OMNI BLOK 154
Datasheet
1,424In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

154 Surface Mount Fuse with Fuse Holders Fast Blow 160 mA 125 VAC 125 VDC 50 A, 50 A 9.73 mm x 5.03 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 1.2157 Ohms
Littelfuse Surface Mount Fuses Fuseblck w/ fuse .2A OMNI BLOK 154
Datasheet
1,401In Stock
1,500Expected 9/16/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

154 Surface Mount Fuse with Fuse Holders Fast Blow 200 mA 125 VAC 125 VDC 50 A, 50 A 9.73 mm x 5.03 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 837.2 mOhms
Littelfuse Surface Mount Fuses Fuseblck w/fuse.375A OMNI BLOK 154
Datasheet
2,835In Stock
3,000Expected 11/18/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

154 Surface Mount Fuse with Fuse Holders Fast Blow 375 mA 125 VAC 125 VDC 50 A, 50 A 9.73 mm x 5.03 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 610 mOhms
Littelfuse Surface Mount Fuses Fuseblck w/ fuse .4A OMNI BLOK 154
Datasheet
1,196In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

154 Surface Mount Fuse with Fuse Holders Fast Blow 400 mA 125 VAC 125 VDC 50 A, 50 A 9.73 mm x 5.03 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 560 mOhms
Littelfuse Surface Mount Fuses ACS SMF OMNI-BLOK SB RoHS 260C .500A
Datasheet
1,004In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

154 Surface Mount Fuse with Fuse Holders Time Delay / Slow Blow 500 mA 125 VAC 125 VDC 50 A, 50 A 9.73 mm x 5.03 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 700 mOhms
Littelfuse Surface Mount Fuses Fuseblck w/ fuse.75A OMNI BLOK 154
Datasheet
4,563In Stock
4,500Expected 9/10/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

154 Surface Mount Fuse with Fuse Holders Fast Blow 750 mA 125 VAC 125 VDC 50 A, 50 A 9.73 mm x 5.03 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 245 mOhms
Littelfuse Surface Mount Fuses Fuseblck w/ fuse.75A OMNI BLOK 154T
Datasheet
5,646In Stock
4,500Expected 1/4/2027
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

154 Surface Mount Fuse with Fuse Holders Time Delay / Slow Blow 750 mA 125 VAC 125 VDC 50 A, 50 A 9.73 mm x 5.03 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 360 mOhms