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
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 125V 6A Fast Acting 5.998In Stock
Min.: 1
Mult.: 1

Glass Fuse 5 mm x 20 mm Cylindrical 6 A 125 VAC
Littelfuse Cartridge Fuses 250V .150A 5X20 TL UL LBC 1.611In Stock
Min.: 1
Mult.: 1

Glass Fuse 5 mm x 20 mm Cylindrical 150 mA 250 VAC
Littelfuse Cartridge Fuses 250V .25A Slo-Blo 5.792In Stock
4.000Expected 10/13/2026
Min.: 1
Mult.: 1

Glass Fuse 5 mm x 20 mm Cylindrical 250 mA 250 VAC
Littelfuse Cartridge Fuses 250V .3A Slo-Blo 2.607In Stock
4.000Expected 10/13/2026
Min.: 1
Mult.: 1

Glass Fuse 5 mm x 20 mm Cylindrical 300 mA 250 VAC
Littelfuse Cartridge Fuses 250V .5A Slo-Blo 2.316In Stock
Min.: 1
Mult.: 1

Glass Fuse 5 mm x 20 mm Cylindrical 500 mA 250 VAC
Littelfuse Cartridge Fuses 250V 1A Slo-Blo 5.383In Stock
1.000Expected 9/29/2026
Min.: 1
Mult.: 1

Glass Fuse 5 mm x 20 mm Cylindrical 1 A 250 VAC
Littelfuse Cartridge Fuses 250V 1A Slo-Blo 6.232In Stock
4.000Expected 9/7/2026
Min.: 1
Mult.: 1

Glass Fuse 5 mm x 20 mm Cylindrical 1 A 250 VAC
Littelfuse Cartridge Fuses 250V 2A Slo-Blo 8.767In Stock
6.800Expected 10/6/2026
Min.: 1
Mult.: 1

Glass Fuse 5 mm x 20 mm Cylindrical 2 A 250 VAC
Littelfuse Cartridge Fuses 250V 3A Slo-Blo 12.405In Stock
10.300Expected 9/22/2026
Min.: 1
Mult.: 1

Glass Fuse 5 mm x 20 mm Cylindrical 3 A 250 VAC
Littelfuse Cartridge Fuses 250V 3A Slo-Blo 7.051In Stock
5.000Expected 9/22/2026
Min.: 1
Mult.: 1

Glass Fuse 5 mm x 20 mm Cylindrical 3 A 250 VAC
Littelfuse Cartridge Fuses 250V 4A Slo-Blo 2.290In Stock
2.000Expected 10/5/2026
Min.: 1
Mult.: 1

Glass Fuse 5 mm x 20 mm Cylindrical 4 A 125 VAC
Littelfuse Cartridge Fuses 250V 1.6A Slo-Blo 4.069In Stock
Min.: 1
Mult.: 1

Glass Fuse 5 mm x 20 mm Cylindrical 1.6 A 250 VAC
Littelfuse Cartridge Fuses 250V 2.5A Slo-Blo 2.440In Stock
Min.: 1
Mult.: 1

Glass Fuse 5 mm x 20 mm Cylindrical 2.5 A 250 VAC
Littelfuse Automotive Fuses 32VDC 10A ATOF Nylon 8.398In Stock
Min.: 1
Mult.: 1

Automotive Fuses ATO Sn 10 A 32 VDC
Littelfuse Automotive Fuses 32VDC 15A ATOF Nylon 7.114In Stock
Min.: 1
Mult.: 1

Automotive Fuses ATO Sn 15 A 32 VDC
Littelfuse Cartridge Fuses 250V .5A Slo-Blo 3AB 1.186In Stock
Min.: 1
Mult.: 1

Axial Lead and Cartridge Fuse 3AB (6.3 mm x 32 mm) Cylindrical 500 mA 250 VAC
Littelfuse Cartridge Fuses 250V 2A Slo-Blo 1.576In Stock
Min.: 1
Mult.: 1

Axial Lead and Cartridge Fuse 3AB (6.3 mm x 32 mm) Cylindrical 2 A 250 VAC
Littelfuse Cartridge Fuses 250V 3A Slo-Blo 1.232In Stock
1.500Expected 9/22/2026
Min.: 1
Mult.: 1

Axial Lead and Cartridge Fuse 3AB (6.3 mm x 32 mm) Cylindrical 3 A 250 VAC
Littelfuse Cartridge Fuses 250V 3A Slo-Blo 1.262In Stock
Min.: 1
Mult.: 1

Axial Lead and Cartridge Fuse 3AB (6.3 mm x 32 mm) Cylindrical 3 A 250 VAC
Littelfuse Cartridge Fuses 250V 5A Slo-Blo 4.084In Stock
Min.: 1
Mult.: 1

Axial Lead and Cartridge Fuse 3AB (6.3 mm x 32 mm) Cylindrical 5 A 250 VAC
Littelfuse Cartridge Fuses 250V 7A Slo-Blo 1.341In Stock
Min.: 1
Mult.: 1

Axial Lead and Cartridge Fuse 3AB (6.3 mm x 32 mm) Cylindrical 7 A 250 VAC
Littelfuse Cartridge Fuses 250V 8A Slo-Blo 1.122In Stock
Min.: 1
Mult.: 1

Axial Lead and Cartridge Fuse 3AB (6.3 mm x 32 mm) Cylindrical 8 A 250 VAC
Littelfuse Cartridge Fuses 250V 1.5A Slo-Blo 1.901In Stock
Min.: 1
Mult.: 1

Axial Lead and Cartridge Fuse 3AB (6.3 mm x 32 mm) Cylindrical 1.5 A 250 VAC 60 VDC
Littelfuse Cartridge Fuses 250V 10A Slo-Blo 2.150In Stock
1.700Expected 9/29/2026
Min.: 1
Mult.: 1

Axial Lead and Cartridge Fuse 3AB (6.3 mm x 32 mm) Cylindrical 10 A 250 VAC
Littelfuse Cartridge Fuses 250V 12A Slo-Blo 1.607In Stock
Min.: 1
Mult.: 1

Axial Lead and Cartridge Fuse 3AB (6.3 mm x 32 mm) Cylindrical 12 A 250 VAC 60 VDC