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 (CAD) 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 .08A Time Lag (Slo-Blo) 1,590In Stock
Min.: 1
Mult.: 1

Glass Fuse 5 mm x 20 mm Cylindrical 80 mA 250 VAC
Littelfuse Cartridge Fuses 250V .1A Time Lag (Slo-Blo) 3,271In Stock
Min.: 1
Mult.: 1

Glass Fuse 5 mm x 20 mm Cylindrical 100 mA 250 VAC
Littelfuse Cartridge Fuses 250V .16A Time Lag (Slo-Blo) 1,780In Stock
Min.: 1
Mult.: 1

Glass Fuse 5 mm x 20 mm Cylindrical 160 mA 250 VAC
Littelfuse Cartridge Fuses 250V .5A Time Lag (Slo-Blo) 2,938In Stock
Min.: 1
Mult.: 1

Glass Fuse 5 mm x 20 mm Cylindrical 500 mA 250 VAC
Littelfuse Cartridge Fuses 250V 1A Time Lag (Slo-Blo) 4,021In Stock
Min.: 1
Mult.: 1

Glass Fuse 5 mm x 20 mm Cylindrical 1 A 250 VAC
Littelfuse Cartridge Fuses 250V 1A Time Lag (Slo-Blo) 14,500In Stock
Min.: 1
Mult.: 1

Glass Fuse 5 mm x 20 mm Cylindrical 1 A 250 VAC
Littelfuse Cartridge Fuses 250V 2A Time Lag (Slo-Blo) 5,344In Stock
3,000Expected 2026-05-25
Min.: 1
Mult.: 1

Glass Fuse 5 mm x 20 mm Cylindrical 2 A 250 VAC
Littelfuse Cartridge Fuses 250V 2A Time Lag (Slo-Blo) 7,169In Stock
Min.: 1
Mult.: 1

Glass Fuse 5 mm x 20 mm Cylindrical 2 A 250 VAC
Littelfuse Cartridge Fuses 250V 4A Time Lag (Slo-Blo) 4,281In Stock
Min.: 1
Mult.: 1

Glass Fuse 5 mm x 20 mm Cylindrical 4 A 250 VAC
Littelfuse Cartridge Fuses 250V 4A Time Lag (Slo-Blo) 4,859In Stock
Min.: 1
Mult.: 1

Glass Fuse 5 mm x 20 mm Cylindrical 4 A 250 VAC
Littelfuse Cartridge Fuses 250V 5A Time Lag (Slo-Blo) 9,834In Stock
4,000Expected 2026-03-31
Min.: 1
Mult.: 1

Glass Fuse 5 mm x 20 mm Cylindrical 5 A 250 VAC
Littelfuse Cartridge Fuses 250V 5A Time Lag (Slo-Blo) 3,479In Stock
2,000Expected 2026-07-01
Min.: 1
Mult.: 1

Glass Fuse 5 mm x 20 mm Cylindrical 5 A 250 VAC
Littelfuse Cartridge Fuses 250V 8A Time Lag (Slo-Blo) 1,362In Stock
Min.: 1
Mult.: 1

Glass Fuse 5 mm x 20 mm Cylindrical 8 A 250 VAC
Littelfuse Cartridge Fuses 250V 8A Time Lag (Slo-Blo) 4,009In Stock
Min.: 1
Mult.: 1

Glass Fuse 5 mm x 20 mm Cylindrical 8 A 250 VAC
Littelfuse Cartridge Fuses 250V 10A Time Lag (Slo-Blo) 5,106In Stock
Min.: 1
Mult.: 1

Glass Fuse 5 mm x 20 mm Cylindrical 10 A 250 VAC
Littelfuse Cartridge Fuses 250V 10A Time Lag (Slo-Blo) 4,439In Stock
Min.: 1
Mult.: 1

Glass Fuse 5 mm x 20 mm Cylindrical 10 A 250 VAC
Littelfuse Cartridge Fuses 250V 15A Time Lag (Slo-Blo) 2,464In Stock
Min.: 1
Mult.: 1

Glass Fuse 5 mm x 20 mm Cylindrical 15 A 250 VAC
Littelfuse Cartridge Fuses 250V 15A Time Lag (Slo-Blo) 3,878In Stock
Min.: 1
Mult.: 1

Glass Fuse 5 mm x 20 mm Cylindrical Leaded 15 A 250 VAC
Littelfuse Cartridge Fuses 250V 15A Time Lag (Slo-Blo) 1,642In Stock
1,000Expected 2026-05-18
Min.: 1
Mult.: 1

Glass Fuse 5 mm x 20 mm Cylindrical 15 A 250 VAC
Littelfuse Cartridge Fuses 250V 2.5A Time Lag (Slo-Blo) 2,480In Stock
Min.: 1
Mult.: 1

Glass Fuse 5 mm x 20 mm Cylindrical 2.5 A 250 VAC
Littelfuse Cartridge Fuses 250V 2.5A Time Lag (Slo-Blo) 4,151In Stock
Min.: 1
Mult.: 1

Glass Fuse 5 mm x 20 mm Cylindrical 2.5 A 250 VAC
Littelfuse Cartridge Fuses 250V 6.3A Time Lag (Slo-Blo) 6,731In Stock
Min.: 1
Mult.: 1

Glass Fuse 5 mm x 20 mm Cylindrical 6.3 A 250 VAC
Littelfuse Cartridge Fuses 250V 3.15A Time Lag (Slo-Blo) 4,710In Stock
Min.: 1
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Glass Fuse 5 mm x 20 mm Cylindrical 3.15 A 250 VAC
Littelfuse Cartridge Fuses 250V 3.15A Radial TD LBC MM 982In Stock
Min.: 1
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Axial Lead and Cartridge Fuse 5 mm x 20 mm Cylindrical 3.15 A 250 VAC
Littelfuse Cartridge Fuses 250V 3.15A Time Lag (Slo-Blo) 2,856In Stock
4,000On Order
Min.: 1
Mult.: 1

Glass Fuse 5 mm x 20 mm Cylindrical 3.15 A 250 VAC