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.

Results: 3,236
Select Image Part # Mfr. Description Datasheet Availability Pricing (JPY) Filter the results in the table by unit price based on your quantity. Qty. RoHS
Littelfuse Cartridge Fuses 250V 6.3A Fast Acting 2,538In Stock
Min.: 1
Mult.: 1

Littelfuse Cartridge Fuses 250V 1.25A Fast Acting 1,606In Stock
Min.: 1
Mult.: 1

Littelfuse Cartridge Fuses 250V FA HBC PT 5X20MM RoHS 12.5A 996In Stock
1,000Expected 10/19/2026
Min.: 1
Mult.: 1

Littelfuse Cartridge Fuses 250V 12.5A FA HBC 5X20MM 1,382In Stock
3,000Expected 9/7/2026
Min.: 1
Mult.: 1

Littelfuse Cartridge Fuses 250V 3.15A Fast Acting 2,804In Stock
Min.: 1
Mult.: 1

Littelfuse Cartridge Fuses 250 V 0.032A 5x20mm Fast Acting 1,200In Stock
Min.: 1
Mult.: 1

Littelfuse Cartridge Fuses 250 V 0.05A 5x20mm Fast Acting 5,243In Stock
Min.: 1
Mult.: 1

Littelfuse Cartridge Fuses 250 V 0.063A 5x20mm Fast Acting 3,748In Stock
Min.: 1
Mult.: 1

Littelfuse Cartridge Fuses 250 V 0.2A 5x20mm Fast Acting 6,640In Stock
Min.: 1
Mult.: 1

Littelfuse Cartridge Fuses 250 V 0.25A 5x20mm Fast Acting 2,639In Stock
6,000Expected 9/15/2026
Min.: 1
Mult.: 1

Littelfuse Cartridge Fuses 250 V 0.5A 5x20mm Fast Acting 15,144In Stock
45,000On Order
Min.: 1
Mult.: 1

Littelfuse Cartridge Fuses 250 V 1A 5x20mm Fast Acting 6,130In Stock
Min.: 1
Mult.: 1

Littelfuse Cartridge Fuses 250 V 2A 5x20mm Fast Acting 26,146In Stock
16,000Expected 9/3/2026
Min.: 1
Mult.: 1

Littelfuse Cartridge Fuses 250 V 4A 5x20mm Fast Acting 9,451In Stock
7,000Expected 10/13/2026
Min.: 1
Mult.: 1

Littelfuse Cartridge Fuses 250 V 10A 5x20mm Fast Acting 6,753In Stock
3,700Expected 2/15/2027
Min.: 1
Mult.: 1

Littelfuse Cartridge Fuses 250 V 3.15A 5x20mm Fast Acting 9,355In Stock
9,900Expected 9/7/2026
Min.: 1
Mult.: 1

Littelfuse Cartridge Fuses 250V .032A Time Lag (Slo-Blo) 2,172In Stock
Min.: 1
Mult.: 1

Littelfuse Cartridge Fuses 250V .1A Time Lag (Slo-Blo) 2,090In Stock
Min.: 1
Mult.: 1

Littelfuse Cartridge Fuses 250V .125A Time Lag (Slo-Blo) 1,690In Stock
Min.: 1
Mult.: 1

Littelfuse Cartridge Fuses .2A 250V TIME DELAY 1,654In Stock
Min.: 1
Mult.: 1

Littelfuse Cartridge Fuses 250V .25A Time Lag (Slo-Blo) 2,663In Stock
Min.: 1
Mult.: 1

Littelfuse Cartridge Fuses 250V .315A Time Lag (Slo-Blo) 1,911In Stock
7,000On Order
Min.: 1
Mult.: 1

Littelfuse Cartridge Fuses 250V .5A Time Lag (Slo-Blo) 3,466In Stock
3,000Expected 10/26/2026
Min.: 1
Mult.: 1

Littelfuse Cartridge Fuses 250V .5A Time Lag (Slo-Blo) 2,294In Stock
5,000On Order
Min.: 1
Mult.: 1

Littelfuse Cartridge Fuses 250V 1A Time Lag (Slo-Blo) 5,670In Stock
3,400Expected 10/13/2026
Min.: 1
Mult.: 1