General Port Protection Solutions

Littelfuse General Port Protection provides a wide array of solutions for power and communication ports. Ports need protection from common electrical hazards such as lightning surges, induced power surges, power cross, electrical fast transient, electrostatic discharge, and short-circuits due to aging wires or installation errors. Littelfuse General Port Protection products are ideal for automotive, building automation, consumer electronics, and industrial applications.

Results: 176
Select Image Part # Mfr. Description Datasheet Availability Pricing (USD) Filter the results in the table by unit price based on your quantity. Qty. RoHS Product Type Fuse Size/Group Body Style Current Rating Voltage Rating AC Voltage Rating DC
Littelfuse Cartridge Fuses 250V 1A Slo-Blo 2,152In Stock
2,000Expected 2026/12/30
$1.40
$1.28
$1.07
$0.968
Min.: 1
Mult.: 1
Axial Lead and Cartridge Fuse 3AG (6.3 mm x 32 mm) Cylindrical 1 A 250 VAC
Littelfuse Cartridge Fuses 250V 2A Slo-Blo 5,840In Stock
$1.45
$1.34
$1.11
$0.973
Min.: 1
Mult.: 1
Axial Lead and Cartridge Fuse 3AG (6.3 mm x 32 mm) Cylindrical 2 A 250 VAC
Littelfuse Cartridge Fuses 250V 2A Slo-Blo 7,621In Stock
6,000Expected 2027/02/25
$1.58
$1.31
$1.21
$1.01
Min.: 1
Mult.: 1
Axial Lead and Cartridge Fuse 3AG (6.3 mm x 32 mm) Cylindrical 2 A 250 VAC
Littelfuse Cartridge Fuses 250V 3A Slo-Blo 2,208In Stock
1,500Expected 2027/01/07
$1.37
$1.27
$1.05
$0.961
Min.: 1
Mult.: 1
Axial Lead and Cartridge Fuse 3AG (6.3 mm x 32 mm) Cylindrical 3 A 250 VAC
Littelfuse Cartridge Fuses 250V 3A Slo-Blo 7,499In Stock
$1.58
$1.31
$1.21
$1.01
Min.: 1
Mult.: 1
Axial Lead and Cartridge Fuse 3AG (6.3 mm x 32 mm) Cylindrical 3 A 250 VAC
Littelfuse Cartridge Fuses 250V 4A Slo-Blo 2,451In Stock
2,400Expected 2027/02/23
$1.55
$1.43
$1.19
$1.09
Min.: 1
Mult.: 1
Axial Lead and Cartridge Fuse 3AG (6.3 mm x 32 mm) Cylindrical 4 A 250 VAC
Littelfuse Cartridge Fuses 250V 5A Slo-Blo 3,020In Stock
2,700Expected 2027/03/15
$1.55
$1.43
$1.19
$1.07
Min.: 1
Mult.: 1
Axial Lead and Cartridge Fuse 3AG (6.3 mm x 32 mm) Cylindrical 5 A 250 VAC
Littelfuse Cartridge Fuses 250V 5A Slo-Blo 3,577In Stock
$1.49
$1.38
$1.14
$0.923
Min.: 1
Mult.: 1
Axial Lead and Cartridge Fuse 3AG (6.3 mm x 32 mm) Cylindrical 5 A 250 VAC
Littelfuse Cartridge Fuses 250V 7A Slo-Blo 1,743In Stock
$1.49
$1.38
$1.14
$1.06
Min.: 1
Mult.: 1
Axial Lead and Cartridge Fuse 3AG (6.3 mm x 32 mm) Cylindrical 7 A 250 VAC
Littelfuse Cartridge Fuses 250V 1.5A Slo-Blo 2,043In Stock
2,100Expected 2027/02/17
$1.37
$1.27
$1.05
$0.965
Min.: 1
Mult.: 1
Axial Lead and Cartridge Fuse 3AG (6.3 mm x 32 mm) Cylindrical 1.5 A 32 VAC
Littelfuse Cartridge Fuses 250V SB 3AG PB-FREE 10A 5,447In Stock
$1.54
$1.28
$1.15
$0.978
Min.: 1
Mult.: 1
Axial Lead and Cartridge Glass Fuse 3AG (6.3 mm x 32 mm) Cylindrical 10 A 32 VAC
Littelfuse Cartridge Fuses 32V 10A Slo-Blo 1,934In Stock
2,000Expected 2027/03/09
$1.76
$1.60
$1.34
$1.22
Min.: 1
Mult.: 1
Axial Lead and Cartridge Fuse 3AG (6.3 mm x 32 mm) Cylindrical 10 A 32 VAC
Littelfuse Cartridge Fuses 32V 15A Slo-Blo 2,955In Stock
$1.55
$1.43
$1.19
$1.09
Min.: 1
Mult.: 1
Axial Lead and Cartridge Fuse 3AG (6.3 mm x 32 mm) Cylindrical 15 A 32 VAC
Littelfuse Cartridge Fuses 32V 20A Slo-Blo 1,275In Stock
$1.94
$1.79
$1.78
$1.60
Min.: 1
Mult.: 1
Axial Lead and Cartridge Fuse 3AG (6.3 mm x 32 mm) Cylindrical 20 A 32 VAC
Littelfuse Cartridge Fuses 250V 6.25A Slo-Blo 9,433In Stock
$1.49
$1.38
$1.14
$1.06
Min.: 1
Mult.: 1
Axial Lead and Cartridge Fuse 3AG (6.3 mm x 32 mm) Cylindrical 6.25 A 250 VAC
Littelfuse Surface Mount Fuses 32V .250A SLIM Fast Acting 0402 15,337In Stock
20,000Expected 2026/12/14
Cut Tape
$1.50
$1.40
$1.12
$1.06
Reel
$0.718
Min.: 1
Mult.: 1
: 10,000
SMD Fuses 0402 (1005 metric) 250 mA 32 VAC 32 VDC
Littelfuse Surface Mount Fuses 600VAC 0.5A .56ohms 461 NANO2 2,457In Stock
20,000On Order
Cut Tape
$2.27
$2.11
$1.74
$1.60
Reel
$1.14
Min.: 1
Mult.: 1
: 2,500
SMD Fuses 10.1 mm x 3.12 mm 500 mA 600 VAC 80 VDC
Littelfuse Cartridge Fuses 500Vac 400Vdc TL 5X20 500mA 10,280In Stock
$1.97
$1.83
$1.51
$1.47
Min.: 1
Mult.: 1
Cartridge Fuse 5 mm x 20 mm Cylindrical 500 mA 500 VAC 400 VDC
Littelfuse Cartridge Fuses 500Vac 400Vdc TL 1A 5X20 10,397In Stock
23,068On Order
$1.97
$1.83
$1.51
$1.47
Min.: 1
Mult.: 1
Cartridge Fuse 5 mm x 20 mm Cylindrical 1 A 500 VAC 400 VDC
Littelfuse Cartridge Fuses 500Vac 400Vdc TL 2A 5X20 11,625In Stock
$1.95
$1.80
$1.49
$1.38
Min.: 1
Mult.: 1
Cartridge Fuse 5 mm x 20 mm Cylindrical 2 A 500 VAC 400 VDC
Littelfuse Cartridge Fuses 500Vac 400Vdc TL 4A 5X20 10,728In Stock
$2.09
$1.93
$1.60
$1.48
$1.47
Min.: 1
Mult.: 1
Cartridge Fuse 5 mm x 20 mm Cylindrical 4 A 500 VAC 400 VDC
Littelfuse Cartridge Fuses 500Vac 400Vdc TL 5A 5X20 8,586In Stock
7,000Expected 2026/12/07
$2.17
$2.01
$1.67
$1.54
Min.: 1
Mult.: 1
Cartridge Fuse 5 mm x 20 mm Cylindrical 5 A 500 VAC 400 VDC
Littelfuse Cartridge Fuses 500Vac 400Vdc TL 10A 5X20 3,784In Stock
5,000Expected 2027/03/01
$2.38
$2.20
$1.83
$1.67
Min.: 1
Mult.: 1
Cartridge Fuse 5 mm x 20 mm Cylindrical 10 A 500 VAC 400 VDC
Littelfuse Cartridge Fuses 500Vac 400Vdc TL 12A 5X20 2,099In Stock
$3.38
$2.87
$2.65
$2.20
Min.: 1
Mult.: 1
Cartridge Fuse 5 mm x 20 mm Cylindrical 12 A 500 VAC 400 VDC
Littelfuse Cartridge Fuses 500Vac 400Vdc TL 16A 5X20 5,592In Stock
$3.33
$2.83
$2.58
$2.17
Min.: 1
Mult.: 1
Cartridge Fuse 5 mm x 20 mm Cylindrical 16 A 500 VAC 400 VDC