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
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Results: 1.620
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Description Datasheet Availability Pricing (EUR) Filter the results in the table by unit price based on your quantity.
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Fuse Size/Group
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Voltage Rating AC
Voltage Rating DC
Littelfuse Cartridge Fuses 250V .125A 5X20 TL HBC
Datasheet
1.432In Stock
Min.: 1
Mult.: 1

Ceramic Cartridge Fuse 5 mm x 20 mm Cylindrical 125 mA 250 VAC
Littelfuse Cartridge Fuses 250V HBC PT TL 5X20 PB FREE 20A
Datasheet
1.019In Stock
Min.: 1
Mult.: 1

Axial Lead and Cartridge Fuse 5 mm x 20 mm Cylindrical Leaded 20 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 4A Fast Acting
Datasheet
11.155In Stock
Min.: 1
Mult.: 1

Axial Lead and Cartridge Fuse 5 mm x 20 mm Cylindrical 4 A 250 VAC
Littelfuse Cartridge Fuses 250V 15A Time Lag (Slo-Blo)
Datasheet
3.597In Stock
Min.: 1
Mult.: 1

Glass Fuse 5 mm x 20 mm Cylindrical Leaded 15 A 250 VAC
Littelfuse Cartridge Fuses 250 V 0.315A 5x20mm Fast Acting
Datasheet
3.192In Stock
Min.: 1
Mult.: 1

Axial Lead and Cartridge Fuse 5 mm x 20 mm Cylindrical Leaded 315 mA 250 VAC
Littelfuse Cartridge Fuses 250V 2A Time Lag (Slo-Blo)
Datasheet
1.700In Stock
Min.: 1
Mult.: 1

Glass Fuse 5 mm x 20 mm Cylindrical Leaded 2 A 250 VAC
Littelfuse Cartridge Fuses 250V 2.5A Slo-Blo
Datasheet
1.251In Stock
Min.: 1
Mult.: 1

Axial Lead and Cartridge Fuse 3AB (6.3 mm x 32 mm) Cylindrical 2.5 A 250 VAC 125 VDC
Littelfuse Cartridge Fuses FUSE 250V 5X20 PT RAD TL PB-FREE 10A
Datasheet
967In Stock
1.000Expected 8/20/2026
Min.: 1
Mult.: 1

Ceramic Fuse 5 mm x 20 mm Cylindrical 10 A 250 VAC
Littelfuse Cartridge Fuses 250V 1.25A Slo-Blo
Datasheet
795In 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 250V 10A CC Radial Fast Acting SP
Datasheet
1.026In Stock
Min.: 1
Mult.: 1

Axial Lead and Cartridge Fuse 5 mm x 20 mm Cylindrical 10 A 250 VAC

Littelfuse Cartridge Fuses 250V 5x20 PGT RAD FORM T LBC 3.15A
Datasheet
485In Stock
1.000Expected 12/21/2026
Min.: 1
Mult.: 1

Glass Fuse 5 mm x 20 mm Cylindrical 3.15 A 250 VAC
Littelfuse Cartridge Fuses 125V 3A METI Medium Acting
Datasheet
1.229In Stock
Min.: 1
Mult.: 1

Axial Lead and Cartridge Fuse 5 mm x 20 mm Cylindrical 3 A 125 VAC
Littelfuse Cartridge Fuses 125V 6A C/Code M
Datasheet
1.175In Stock
Min.: 1
Mult.: 1

Axial Lead and Cartridge Fuse 5 mm x 20 mm Cylindrical 6 A 125 VAC
Littelfuse Cartridge Fuses 125V 3.5A C/Code M
Datasheet
263In Stock
Min.: 1
Mult.: 1

Axial Lead and Cartridge Fuse 5 mm x 20 mm Cylindrical 3.5 A 125 VAC
Littelfuse Cartridge Fuses 250V 1.25A C/Code
Datasheet
718In Stock
Min.: 1
Mult.: 1

Axial Lead and Cartridge Fuse 5 mm x 20 mm Cylindrical 1.25 A 250 VAC
Littelfuse Cartridge Fuses 250V 6A Fast Acting
Datasheet
562In Stock
Min.: 1
Mult.: 1

Glass Fuse 5 mm x 20 mm Cylindrical Leaded 6 A 125 VAC
Littelfuse Cartridge Fuses 250V .175A Slo-Blo 3AB
Datasheet
38In Stock
Min.: 1
Mult.: 1

Axial Lead and Cartridge Fuse 3AB (6.3 mm x 32 mm) Cylindrical 175 mA 250 VAC
Littelfuse Cartridge Fuses 5x20 C/CODE T LBC 1.25A/250V (P)
Datasheet
431In Stock
Min.: 1
Mult.: 1

Axial Lead and Cartridge Fuse 5 mm x 20 mm Cylindrical 1.25 A 250 VAC
Littelfuse Cartridge Fuses 250 V 4A 5x20mm Fast Acting
Datasheet
354In Stock
1.000Expected 11/18/2026
Min.: 1
Mult.: 1

Axial Lead and Cartridge Fuse 5 mm x 20 mm Cylindrical Leaded 4 A 250 VAC
Littelfuse Cartridge Fuses 125V 3.15A METI Medium Acting
Datasheet
670In Stock
Min.: 1
Mult.: 1

Axial Lead and Cartridge Fuse 5 mm x 20 mm Cylindrical 3.15 A 125 VAC
Littelfuse Cartridge Fuses 250V .5A Fast Acting
Datasheet
434In Stock
Min.: 1
Mult.: 1

Glass Fuse 5 mm x 20 mm Cylindrical Leaded 500 mA 250 VAC
Littelfuse Cartridge Fuses 250V .15A Slo-Blo 3AB
Datasheet
99In Stock
Min.: 1
Mult.: 1

Axial Lead and Cartridge Fuse 3AB (6.3 mm x 32 mm) Cylindrical 150 mA 250 VAC
Littelfuse Cartridge Fuses 250V .4A Slo-Blo
Datasheet
231In 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 2A 5x20mm Fast Acting
Datasheet
447In Stock
1.000Expected 10/5/2026
Min.: 1
Mult.: 1

Axial Lead and Cartridge Fuse 5 mm x 20 mm Cylindrical Leaded 2 A 250 VAC