Heat Pumps

Littelfuse provides a broad portfolio of components for heat pumps, including fuses, TVS diodes, gate drivers, and more. The heat pump market is growing quickly, driven by government initiatives to reduce greenhouse gas emissions and rising energy costs. With inverter-driven motors improving system efficiencies, heat pumps can now be used in a wide range of climates. Learn how Littelfuse technologies make heat pumps safer, more reliable, and more energy efficient. Heat pumps can be used in a wide range of climates due to the inverter-driven motors improving system efficiencies. These components are suitable for various applications such as energy management, security systems, HVAC systems, smoke detectors, and IoT-controlled appliances. Littelfuse offers protect, control, and sense technologies to improve buildings' reliability, safety, and energy efficiency.

Types of Fuses
Change category view
Results: 1.731
Select Image Part #
 Mfr.
Description Datasheet Availability Pricing (EUR) 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 .63A Slo-Blo
Datasheet
1.259In Stock
Min.: 1
Mult.: 1

Ceramic Cartridge Fuse 5 mm x 20 mm Cylindrical 630 mA 250 VAC
Littelfuse Cartridge Fuses 250V 6.3A Time Lag (Slo-Blo)
Datasheet
1.051In Stock
Min.: 1
Mult.: 1

Glass Fuse 5 mm x 20 mm Cylindrical Leaded 6.3 A 250 VAC
Littelfuse Cartridge Fuses 250V .125A Slo-Blo
Datasheet
1.019In Stock
Min.: 1
Mult.: 1

Glass Fuse 5 mm x 20 mm Cylindrical 125 mA 250 VAC
Littelfuse Cartridge Fuses 250V 3.15A Medium Acting
Datasheet
1.906In Stock
Min.: 1
Mult.: 1

Glass Fuse 5 mm x 20 mm Cylindrical 3.15 A 250 VAC
Littelfuse Cartridge Fuses 250V .16A Fast Acting
Datasheet
1.128In Stock
Min.: 1
Mult.: 1

Axial Lead and Cartridge Fuse 5 mm x 20 mm Cylindrical Leaded 160 mA 250 VAC
Littelfuse Cartridge Fuses 250V 5A Time Lag (Slo-Blo)
Datasheet
698In Stock
Min.: 1
Mult.: 1

Glass Fuse 5 mm x 20 mm Cylindrical Leaded 5 A 250 VAC
Littelfuse Cartridge Fuses 250V 10A Time Lag (Slo-Blo)
Datasheet
700In Stock
Min.: 1
Mult.: 1

Glass Fuse 5 mm x 20 mm Cylindrical Leaded 10 A 250 VAC
Littelfuse Cartridge Fuses 250V 3.15A Time Lag (Slo-Blo)
Datasheet
393In Stock
Min.: 1
Mult.: 1

Glass Fuse 5 mm x 20 mm Cylindrical Leaded 3.15 A 250 VAC
Littelfuse Cartridge Fuses 250V .8A Slo-Blo
Datasheet
1.226In Stock
Min.: 1
Mult.: 1

Glass Fuse 5 mm x 20 mm Cylindrical 800 mA 250 VAC
Littelfuse Cartridge Fuses 250V 12A SB 3AB PB-FREE
Datasheet
735In Stock
Min.: 1
Mult.: 1

Axial Lead and Cartridge Fuse 3AB (6.3 mm x 32 mm) Cylindrical 12 A 250 VAC
Littelfuse Cartridge Fuses 250V 5A Slo-Blo
Datasheet
977In Stock
Min.: 1
Mult.: 1

Axial Lead and Cartridge Fuse 5 mm x 20 mm Cylindrical Leaded 5 A 250 VAC
Littelfuse Cartridge Fuses 250V 1.6A Slo-Blo
Datasheet
905In Stock
Min.: 1
Mult.: 1

Axial Lead and Cartridge Fuse 5 mm x 20 mm Cylindrical Leaded 1.6 A 250 VAC
Littelfuse Cartridge Fuses 250V 3.15A Slo-Blo
Datasheet
844In Stock
Min.: 1
Mult.: 1

Axial Lead and Cartridge Fuse 5 mm x 20 mm Cylindrical Leaded 3.15 A 250 VAC
Littelfuse Cartridge Fuses 250 V 0.08A 5x20mm Fast Acting
Datasheet
1.595In Stock
Min.: 1
Mult.: 1

Axial Lead and Cartridge Fuse 5 mm x 20 mm Cylindrical Leaded 80 mA 250 VAC
Littelfuse Cartridge Fuses 250V 3.15A Slo-Blo
Datasheet
816In Stock
Min.: 1
Mult.: 1

5 mm x 20 mm Cylindrical Leaded 3.15 A 250 VAC
Littelfuse Cartridge Fuses 125V 6A Medium Acting
Datasheet
953In Stock
Min.: 1
Mult.: 1

Glass Fuse 5 mm x 20 mm Cylindrical Leaded 6 A 125 VAC
Littelfuse Cartridge Fuses 250V 2A Slo-Blo
Datasheet
573In Stock
1.000Expected 4/27/2026
Min.: 1
Mult.: 1
No
Glass Fuse 5 mm x 20 mm Cylindrical 2 A 250 VAC
Littelfuse Cartridge Fuses FUS 5X20 PGT REELED T1 T LBC 1A/250V (P)
Datasheet
975In Stock
Min.: 1
Mult.: 1
Reel: 1.000

Axial Lead and Cartridge Fuse 5 mm x 20 mm Cylindrical Leaded 1 A 250 VAC
Littelfuse Cartridge Fuses 250V 6.3A Fast Acting
Datasheet
932In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1.000

Axial Lead and Cartridge Fuse 5 mm x 20 mm Cylindrical Leaded 6.3 A 250 VAC
Littelfuse Cartridge Fuses 250V .63A Fast Acting
Datasheet
628In Stock
Min.: 1
Mult.: 1

Axial Lead and Cartridge Fuse 5 mm x 20 mm Cylindrical Leaded 630 mA 250 VAC
Littelfuse Cartridge Fuses 0.5A/250V (P) 5x20 C/CODE T LBC
Datasheet
998In Stock
Min.: 1
Mult.: 1

Glass Fuse 5 mm x 20 mm Cylindrical 500 mA 250 VAC
Littelfuse Cartridge Fuses 250 V 0.5A 5x20mm Fast Acting
Datasheet
990In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1.000

Axial Lead and Cartridge Fuse 5 mm x 20 mm Cylindrical Leaded 500 mA 250 VAC
Littelfuse Automotive Fuses ATOF 32V 1A Low-Current Nylon
Datasheet
Product Comments
22.403In Stock
Min.: 1
Mult.: 1

Automotive Fuses ATO Sn 1 A 32 VDC
Littelfuse Automotive Fuses ATOF 32V 2A Low-Current Nylon
Datasheet
Product Comments
45.895In Stock
Min.: 1
Mult.: 1

Automotive Fuses ATO Sn 2 A 32 VDC
Littelfuse Automotive Fuses ATOF 32V 5A Low-Current Nylon
Datasheet
Product Comments
39.463In Stock
Min.: 1
Mult.: 1

Automotive Fuses ATO Sn 5 A 32 VDC