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 (JPY) 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 1A IEC TD EBC 1,680In Stock
Min.: 1
Mult.: 1

Glass Fuse 5 mm x 20 mm Cylindrical 1 A 250 VAC
Littelfuse Cartridge Fuses 250V 3A Medium Acting 4,338In Stock
Min.: 1
Mult.: 1

Glass Fuse 5 mm x 20 mm Cylindrical 3 A 250 VAC
Littelfuse Cartridge Fuses 250V .8A Slo-Blo 3AB 1,729In Stock
Min.: 1
Mult.: 1

Axial Lead and Cartridge Fuse 3AB (6.3 mm x 32 mm) Cylindrical 800 mA 250 VAC
Littelfuse Cartridge Fuses 250V HBC PT TL 5X20 PB FREE 20A 997In 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 1,128In Stock
Min.: 1
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Axial Lead and Cartridge Fuse 5 mm x 20 mm Cylindrical Leaded 160 mA 250 VAC
Littelfuse Cartridge Fuses 250V 4A Fast Acting 11,115In Stock
Min.: 1
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Axial Lead and Cartridge Fuse 5 mm x 20 mm Cylindrical 4 A 250 VAC
Littelfuse Cartridge Fuses 250V 15A Time Lag (Slo-Blo) 3,593In Stock
Min.: 1
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Glass Fuse 5 mm x 20 mm Cylindrical Leaded 15 A 250 VAC
Littelfuse Cartridge Fuses FUSE 250V 5X20 PT RAD TL PB-FREE 10A 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 795In Stock
Min.: 1
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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 986In Stock
Min.: 1
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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 485In Stock
1,000Expected 2/3/2027
Min.: 1
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Glass Fuse 5 mm x 20 mm Cylindrical 3.15 A 250 VAC
Littelfuse Cartridge Fuses 125V 3A METI Medium Acting 1,225In Stock
Min.: 1
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Axial Lead and Cartridge Fuse 5 mm x 20 mm Cylindrical 3 A 125 VAC
Littelfuse Cartridge Fuses 125V 6A C/Code M 1,175In Stock
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Axial Lead and Cartridge Fuse 5 mm x 20 mm Cylindrical 6 A 125 VAC
Littelfuse Cartridge Fuses 125V 3.5A C/Code M 263In Stock
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Axial Lead and Cartridge Fuse 5 mm x 20 mm Cylindrical 3.5 A 125 VAC
Littelfuse Cartridge Fuses 250V 1.25A C/Code 718In Stock
Min.: 1
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Axial Lead and Cartridge Fuse 5 mm x 20 mm Cylindrical 1.25 A 250 VAC
Littelfuse Cartridge Fuses 250V 6A Fast Acting 562In Stock
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Glass Fuse 5 mm x 20 mm Cylindrical Leaded 6 A 125 VAC
Littelfuse Cartridge Fuses 250V .175A Slo-Blo 3AB 38In Stock
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Axial Lead and Cartridge Fuse 3AB (6.3 mm x 32 mm) Cylindrical 175 mA 250 VAC
Littelfuse Cartridge Fuses 250V .4A Slo-Blo 231In Stock
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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 347In Stock
1,000Expected 10/5/2026
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Axial Lead and Cartridge Fuse 5 mm x 20 mm Cylindrical Leaded 2 A 250 VAC
Littelfuse Cartridge Fuses 250V 1.25A Medium Acting 856In Stock
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Glass Fuse 5 mm x 20 mm Cylindrical 1.25 A 250 VAC
Littelfuse Cartridge Fuses 125V 2A Medium Acting 557In Stock
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Glass Fuse 5 mm x 20 mm Cylindrical Leaded 2 A 125 VAC
Littelfuse Cartridge Fuses 125V 3A Medium Acting 609In Stock
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Glass Fuse 5 mm x 20 mm Cylindrical Leaded 3 A 125 VAC
Littelfuse Cartridge Fuses 125V 5X20MM ROHS 8A UL LBC MA PT 248In Stock
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Glass Fuse 5 mm x 20 mm Cylindrical Leaded 8 A 125 VAC
Littelfuse Cartridge Fuses 125V 3.15A Medium Acting 429In Stock
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Glass Fuse 5 mm x 20 mm Cylindrical Leaded 3.15 A 125 VAC
Littelfuse Cartridge Fuses 250V 6A Medium Acting 85In Stock
Min.: 1
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Glass Fuse 5 mm x 20 mm Cylindrical Leaded 6 A 250 VAC