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: 1 620
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 250 V 0.1A 5x20mm Fast Acting 89In Stock
5 000Expected 06/10/2026
Min.: 1
Mult.: 1

Axial Lead and Cartridge Fuse 5 mm x 20 mm Cylindrical Leaded 100 mA 250 VAC
Littelfuse Cartridge Fuses 250 V 0.125A 5x20mm Fast Acting 329In Stock
200Expected 29/09/2026
Min.: 1
Mult.: 1

Axial Lead and Cartridge Fuse 5 mm x 20 mm Cylindrical Leaded 125 mA 250 VAC
Littelfuse Cartridge Fuses Fast-Acting Glass Body Cartridge 5x20mm, 125mA, 250V 884In Stock
Min.: 1
Mult.: 1

Axial Lead and Cartridge Fuse 5 mm x 20 mm Cylindrical Leaded 1.25 A 250 VAC
Littelfuse Cartridge Fuses 250 V 0.125A 5x20mm Fast Acting 310In Stock
Min.: 1
Mult.: 1

Axial Lead and Cartridge Fuse 5 mm x 20 mm Cylindrical Leaded 1.25 A 250 VAC
Littelfuse Cartridge Fuses 250 V 0.125A 5x20mm Fast Acting 10In Stock
Min.: 1
Mult.: 1

Axial Lead and Cartridge Fuse 5 mm x 20 mm Cylindrical Leaded 125 mA 250 VAC
Littelfuse Cartridge Fuses 250 V 0.16A 5x20mm Fast Acting 578In Stock
400Expected 01/09/2026
Min.: 1
Mult.: 1

Axial Lead and Cartridge Fuse 5 mm x 20 mm Cylindrical Leaded 160 mA 250 VAC
Littelfuse Cartridge Fuses 250 V 0.2A 5x20mm Fast Acting 399In Stock
Min.: 1
Mult.: 1

Axial Lead and Cartridge Fuse 5 mm x 20 mm Cylindrical Leaded 200 mA 250 VAC
Littelfuse Cartridge Fuses 250 V 0.25A 5x20mm Fast Acting 428In Stock
500Expected 14/09/2026
Min.: 1
Mult.: 1

Axial Lead and Cartridge Fuse 5 mm x 20 mm Cylindrical Leaded 250 mA 250 VAC
Littelfuse Cartridge Fuses 250 V 0.25A 5x20mm Fast Acting 305In Stock
Min.: 1
Mult.: 1

Axial Lead and Cartridge Fuse 5 mm x 20 mm Cylindrical Leaded 250 mA 250 VAC
Littelfuse Cartridge Fuses 250 V 0.315A 5x20mm Fast Acting 138In Stock
Min.: 1
Mult.: 1

Axial Lead and Cartridge Fuse 5 mm x 20 mm Cylindrical Leaded 315 mA 250 VAC
Littelfuse Cartridge Fuses 250 V 0.315A 5x20mm Fast Acting 11In Stock
Min.: 1
Mult.: 1

Axial Lead and Cartridge Fuse 5 mm x 20 mm Cylindrical Leaded 315 mA 250 VAC
Littelfuse Cartridge Fuses 250 V 0.4A 5x20mm Fast Acting 264In Stock
Min.: 1
Mult.: 1

Axial Lead and Cartridge Fuse 5 mm x 20 mm Cylindrical Leaded 400 mA 250 VAC
Littelfuse Cartridge Fuses 250 V 0.4A 5x20mm Fast Acting 646In Stock
2 000On Order
Min.: 1
Mult.: 1

Axial Lead and Cartridge Fuse 5 mm x 20 mm Cylindrical Leaded 400 mA 250 VAC
Littelfuse Cartridge Fuses 250 V 0.4A 5x20mm Fast Acting 6In Stock
Min.: 1
Mult.: 1

Axial Lead and Cartridge Fuse 5 mm x 20 mm Cylindrical Leaded 400 mA 250 VAC
Littelfuse Cartridge Fuses 250 V 0.5A 5x20mm Fast Acting 5 568In Stock
3 200Expected 29/09/2026
Min.: 1
Mult.: 1

Axial Lead and Cartridge Fuse 5 mm x 20 mm Cylindrical Leaded 500 mA 250 VAC
Littelfuse Cartridge Fuses 250 V 0.5A 5x20mm Fast Acting 1 017In Stock
Min.: 1
Mult.: 1

Axial Lead and Cartridge Fuse 5 mm x 20 mm Cylindrical Leaded 500 mA 250 VAC
Littelfuse Cartridge Fuses 250 V 0.5A 5x20mm Fast Acting 187In Stock
Min.: 1
Mult.: 1

Axial Lead and Cartridge Fuse 5 mm x 20 mm Cylindrical Leaded 500 mA 250 VAC
Littelfuse Cartridge Fuses 250 V 0.5A 5x20mm Fast Acting 26In Stock
Min.: 1
Mult.: 1

Axial Lead and Cartridge Fuse 5 mm x 20 mm Cylindrical Leaded 500 mA 250 VAC
Littelfuse Cartridge Fuses 250 V 0.63A 5x20mm Fast Acting 3 410In Stock
Min.: 1
Mult.: 1

Axial Lead and Cartridge Fuse 5 mm x 20 mm Cylindrical Leaded 630 mA 250 VAC
Littelfuse Cartridge Fuses 250 V 0.8A 5x20mm Fast Acting 680In Stock
Min.: 1
Mult.: 1

Axial Lead and Cartridge Fuse 5 mm x 20 mm Cylindrical Leaded 800 mA 250 VAC
Littelfuse Cartridge Fuses 250 V 0.8A 5x20mm Fast Acting 1 666In Stock
3 000Expected 02/02/2027
Min.: 1
Mult.: 1

Axial Lead and Cartridge Fuse 5 mm x 20 mm Cylindrical Leaded 800 mA 250 VAC
Littelfuse Cartridge Fuses 250 V 0.8A 5x20mm Fast Acting 591In Stock
Min.: 1
Mult.: 1

Axial Lead and Cartridge Fuse 5 mm x 20 mm Cylindrical Leaded 800 mA 250 VAC
Littelfuse Cartridge Fuses 250 V 1A 5x20mm Fast Acting 1 077In Stock
Min.: 1
Mult.: 1

Axial Lead and Cartridge Fuse 5 mm x 20 mm Cylindrical Leaded 1 A 250 VAC
Littelfuse Cartridge Fuses 250 V 1A 5x20mm Fast Acting 1 946In Stock
23 000On Order
Min.: 1
Mult.: 1

Axial Lead and Cartridge Fuse 5 mm x 20 mm Cylindrical Leaded 1 A 250 VAC
Littelfuse Cartridge Fuses 250 V 1A 5x20mm Fast Acting 10In Stock
215On Order
Min.: 1
Mult.: 1

Axial Lead and Cartridge Fuse 5 mm x 20 mm Cylindrical Leaded 1 A 250 VAC