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: 1,731
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 5A Time Lag (Slo-Blo) 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) 700In Stock
Min.: 1
Mult.: 1

Glass Fuse 5 mm x 20 mm Cylindrical Leaded 10 A 250 VAC
Littelfuse Cartridge Fuses 250V .8A Slo-Blo 1,231In 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 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 4A Time Lag (Slo-Blo) 957In Stock
Min.: 1
Mult.: 1

Glass Fuse 5 mm x 20 mm Cylindrical Leaded 4 A 250 VAC
Littelfuse Cartridge Fuses 250V 3.15A IEC TD EBC 808In Stock
Min.: 1
Mult.: 1

Axial Lead and Cartridge Fuse 5 mm x 20 mm Cylindrical 3.15 A 250 VAC
Littelfuse Cartridge Fuses 250V 1A Medium Acting 790In Stock
Min.: 1
Mult.: 1

Glass Fuse 5 mm x 20 mm Cylindrical Leaded 1 A 250 VAC
Littelfuse Cartridge Fuses 250V 1.6A Slo-Blo 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 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 1,630In Stock
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Axial Lead and Cartridge Fuse 5 mm x 20 mm Cylindrical Leaded 80 mA 250 VAC
Littelfuse Cartridge Fuses 250V 3.15A Slo-Blo 816In Stock
Min.: 1
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5 mm x 20 mm Cylindrical Leaded 3.15 A 250 VAC
Littelfuse Cartridge Fuses 125V 6A Medium Acting 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 583In Stock
1,000Expected 27/04/2026
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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) 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 .63A Fast Acting 628In Stock
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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 1,000In Stock
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Glass Fuse 5 mm x 20 mm Cylindrical 500 mA 250 VAC
Littelfuse Cartridge Fuses 250 V 0.5A 5x20mm Fast Acting 990In Stock
Min.: 1
Mult.: 1
Reel: 1,000

Axial Lead and Cartridge Fuse 5 mm x 20 mm Cylindrical Leaded 500 mA 250 VAC
Littelfuse Cartridge Fuses 250V 4A Slo-Blo 13,978In Stock
7,000Expected 18/06/2026
Min.: 1
Mult.: 1

Ceramic Cartridge Fuse 5 mm x 20 mm Cylindrical 4 A 250 VAC
Littelfuse Automotive Fuses ATOF 32V 1A Low-Current Nylon 23,801In Stock
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Automotive Fuses ATO Sn 1 A 32 VDC
Littelfuse Automotive Fuses ATOF 32V 2A Low-Current Nylon 46,018In Stock
Min.: 1
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Automotive Fuses ATO Sn 2 A 32 VDC
Littelfuse Automotive Fuses ATOF 32V 5A Low-Current Nylon 24,809In Stock
16,000On Order
Min.: 1
Mult.: 1

Automotive Fuses ATO Sn 5 A 32 VDC
Littelfuse Automotive Fuses ATOF 32V 10A Low-Current Nylon 46,797In Stock
Min.: 1
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Automotive Fuses ATO Sn 10 A 32 VDC
Littelfuse Automotive Fuses ATOF 32V 15A Low-Current Nylon 10,785In Stock
12,000Expected 25/02/2026
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Automotive Fuses ATO Sn 15 A 32 VDC
Littelfuse Automotive Fuses ATOF 32V 20A Low-Current Nylon 36,253In Stock
Min.: 1
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Automotive Fuses ATO Sn 20 A 32 VDC
Littelfuse Automotive Fuses ATOF 32V 30A Low-Current Nylon 15,750In Stock
Min.: 1
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Automotive Fuses ATO Sn 30 A 32 VDC