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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.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (JPY) Filter the results in the table by unit price based on your quantity.	Qty.
Cartridge Fuses 250V 4A Slo-Blo 0215004.MXEP Littelfuse 1: ¥536.5 9,350In Stock	Mfr. Part # 0215004.MXEP Mouser Part # 576-0215004.MXEP	Littelfuse	Cartridge Fuses 250V 4A Slo-Blo Learn More about Littelfuse 5x20 fuseholders	Datasheet	9,350In Stock	¥536.5 ¥445.1 ¥372.1 ¥330.5 View ¥292.3 ¥272.4 ¥252.5 ¥235.9 ¥232.5	Min.: 1 Mult.: 1
Cartridge Fuses 250V 8A Medium Acting 0234008.MXP Littelfuse 1: ¥191 23,785In Stock	Mfr. Part # 0234008.MXP Mouser Part # 576-0234008.MXP	Littelfuse	Cartridge Fuses 250V 8A Medium Acting Learn More about Littelfuse 5x20 fuseholders	Datasheet	23,785In Stock	¥191 ¥165.3 ¥155.1 ¥130.9 View ¥125.2 ¥119.9 ¥115.6 ¥108.5 ¥108	Min.: 1 Mult.: 1
Cartridge Fuses 250V 6.3A Time Lag (Slo-Blo) 021806.3MXP Littelfuse 1: ¥212.6 21,864In Stock	Mfr. Part # 021806.3MXP Mouser Part # 576-021806.3MXP	Littelfuse	Cartridge Fuses 250V 6.3A Time Lag (Slo-Blo) Learn More about Littelfuse 5x20 fuseholders	Datasheet	21,864In Stock	¥212.6 ¥199.3 ¥164.3 ¥119.8	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes 5kW 51V 5% Uni-Directional 5.0SMDJ51A Littelfuse 1: ¥360.4 29,277In Stock	Mfr. Part # 5.0SMDJ51A Mouser Part # 576-5.0SMDJ51A	Littelfuse	ESD Protection Diodes / TVS Diodes 5kW 51V 5% Uni-Directional Learn More about Littelfuse tvsdiodes	Datasheet	29,277In Stock	Cut Tape ¥360.4 ¥264.1 ¥197.7 ¥177.7 View Reel ¥104.6 ¥142.8 ¥131.7 ¥104.6 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
MOSFET Modules 650V/145A Ultra Junction X2-Class IXFN150N65X2 IXYS 1: ¥10,572.3 841In Stock	Mfr. Part # IXFN150N65X2 Mouser Part # 747-IXFN150N65X2	IXYS	MOSFET Modules 650V/145A Ultra Junction X2-Class Learn More about IXYS x2 hiperfet mosfets	Datasheet	841In Stock	¥10,572.3 ¥8,497.7	Min.: 1 Mult.: 1
Gate Drivers 14-Ampere Low-Side Ultrafast MOSFET IXDN614CI IXYS Integrated Circuits 1: ¥998.3 7,328In Stock	Mfr. Part # IXDN614CI Mouser Part # 849-IXDN614CI	IXYS Integrated Circuits	Gate Drivers 14-Ampere Low-Side Ultrafast MOSFET Learn More about IXYS Integrated Circuits ixys ixd 614 mosfet gate drivers	Datasheet	7,328In Stock	¥998.3 ¥760.7 ¥627.9 ¥606.3 View ¥586.3 ¥576.4 ¥524.9 ¥523.2	Min.: 1 Mult.: 1
MOSFETs 250V UltraJunc X3 Pwr MOSFET IXFK240N25X3 IXYS 1: ¥6,061 602In Stock	Mfr. Part # IXFK240N25X3 Mouser Part # 747-IXFK240N25X3	IXYS	MOSFETs 250V UltraJunc X3 Pwr MOSFET Learn More about IXYS x3 hiperfet mosfets	Datasheet	602In Stock	¥6,061 ¥4,699	Min.: 1 Mult.: 1
Bridge Rectifiers 190 Amps 1200V VUO190-12NO7 IXYS 1: ¥15,543.6 166In Stock	Mfr. Part # VUO190-12NO7 Mouser Part # 747-VUO190-12NO7	IXYS	Bridge Rectifiers 190 Amps 1200V Learn More about IXYS 3 phase rectifier bridges	Datasheet	166In Stock	¥15,543.6 ¥13,507.3 ¥12,218.3	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes 33V 200W UNI-DIR SZSMF AEC-Q101 SZSMF33AT1G Littelfuse 1: ¥111.3 178,451In Stock	Mfr. Part # SZSMF33AT1G Mouser Part # 863-SZSMF33AT1G	Littelfuse	ESD Protection Diodes / TVS Diodes 33V 200W UNI-DIR SZSMF AEC-Q101 Learn More about Littelfuse tvsdiodes	Datasheet	178,451In Stock	Cut Tape ¥111.3 ¥62.8 ¥50 ¥40.4 Reel ¥25.7 View ¥38 ¥23.6 ¥23.4 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
MOSFET Modules MBLOC 200V 300A N-CH X3CLASS IXFN300N20X3 IXYS 1: ¥8,550.8 558In Stock	Mfr. Part # IXFN300N20X3 Mouser Part # 747-IXFN300N20X3	IXYS	MOSFET Modules MBLOC 200V 300A N-CH X3CLASS Learn More about IXYS x3 hiperfet mosfets	Datasheet	558In Stock	¥8,550.8 ¥7,102.4	Min.: 1 Mult.: 1
NTC Thermistors 10K OHM 1% PROBE ASSEMBLY USP10975 Littelfuse 1: ¥1,561.3 3,210In Stock	Mfr. Part # USP10975 Mouser Part # 803-USP10975	Littelfuse	NTC Thermistors 10K OHM 1% PROBE ASSEMBLY Learn More about Littelfuse thermistor probes assemblies	Datasheet	3,210In Stock	¥1,561.3 ¥1,460 ¥1,395.2 ¥1,367 View ¥1,355.4 ¥1,317.2	Min.: 1 Mult.: 1
MOSFET Modules MBLOC 150V 400A N-CH X3CLASS IXFN400N15X3 IXYS 1: ¥9,132.2 525In Stock	Mfr. Part # IXFN400N15X3 Mouser Part # 747-IXFN400N15X3	IXYS	MOSFET Modules MBLOC 150V 400A N-CH X3CLASS Learn More about IXYS x3 hiperfet mosfets	Datasheet	525In Stock	¥9,132.2 ¥7,305.1 ¥7,102.4	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes 58Vso 45VAC 53A 5KP58CA Littelfuse 1: ¥686 16,507In Stock 3,200Expected 11/17/2026	Mfr. Part # 5KP58CA Mouser Part # 576-5KP58CA	Littelfuse	ESD Protection Diodes / TVS Diodes 58Vso 45VAC 53A Learn More about Littelfuse 5kp tvs diodes	Datasheet	16,507In Stock 3,200Expected 11/17/2026	Cut Tape ¥686 ¥450.1 ¥348.8 ¥313.9 ¥242.5 Reel ¥210.9	Min.: 1 Mult.: 1 : 800
MOSFETs TO220 200V 72A N-CH X3CLASS IXFP72N20X3 IXYS 1: ¥1,890.2 3,498In Stock	Mfr. Part # IXFP72N20X3 Mouser Part # 747-IXFP72N20X3	IXYS	MOSFETs TO220 200V 72A N-CH X3CLASS Learn More about IXYS x3 hiperfet mosfets	Datasheet	3,498In Stock	¥1,890.2 ¥1,056.4 ¥973.3 ¥961.7	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes ESD 380V BI AK1-380C-Y Littelfuse 1: ¥4,818.6 298In Stock	Mfr. Part # AK1-380C-Y Mouser Part # 576-AK1-380C-Y	Littelfuse	ESD Protection Diodes / TVS Diodes ESD 380V BI Learn More about Littelfuse tvsdiodes	Datasheet	298In Stock	¥4,818.6 ¥3,549.6 ¥3,491.4 ¥3,489.8	Min.: 1 Mult.: 1
IGBT Modules 650V/234A Trench IGBT GenX4 XPT IXXN110N65C4H1 IXYS 1: ¥5,725.5 730In Stock End of Life	Mfr. Part # IXXN110N65C4H1 Mouser Part # 747-IXXN110N65C4H1 End of Life	IXYS	IGBT Modules 650V/234A Trench IGBT GenX4 XPT	Datasheet	730In Stock	¥5,725.5 ¥4,398.3 ¥4,228.9	Min.: 1 Mult.: 1
Cartridge Fuses 250V .032A Time Lag (Slo-Blo) 0218.032MXEP Littelfuse 1: ¥765.7 1,989In Stock	Mfr. Part # 0218.032MXEP Mouser Part # 576-0218.032MXEP	Littelfuse	Cartridge Fuses 250V .032A Time Lag (Slo-Blo) Learn More about Littelfuse 5x20 fuseholders	Datasheet	1,989In Stock	¥765.7 ¥712.6 ¥687.7 ¥541.5 View ¥448.5 ¥430.2 ¥387	Min.: 1 Mult.: 1
Cartridge Fuses 250V 1.6A Slo-Blo 021501.6MXP Littelfuse 1: ¥284 1,451In Stock	Mfr. Part # 021501.6MXP Mouser Part # 576-021501.6MXP	Littelfuse	Cartridge Fuses 250V 1.6A Slo-Blo Learn More about Littelfuse 5x20 fuseholders	Datasheet	1,451In Stock	¥284 ¥249.2 ¥229.2 ¥201 View ¥189.4 ¥179.4 ¥169.4 ¥164.4	Min.: 1 Mult.: 1
Cartridge Fuses 250V 1A Fast Acting 0216001.MXP Littelfuse 1: ¥279 6,395In Stock	Mfr. Part # 0216001.MXP Mouser Part # 576-0216001.MXP	Littelfuse	Cartridge Fuses 250V 1A Fast Acting Learn More about Littelfuse 5x20 fuseholders	Datasheet	6,395In Stock	¥279 ¥244.2 ¥204.3 ¥167.8 View ¥156.6 ¥156 ¥155.8 ¥146.2	Min.: 1 Mult.: 1
Cartridge Fuses 250V 2.5A Slo-Blo 032602.5MXP Littelfuse 1: ¥448.5 1,194In Stock	Mfr. Part # 032602.5MXP Mouser Part # 576-032602.5MXP	Littelfuse	Cartridge Fuses 250V 2.5A Slo-Blo Learn More about Littelfuse 6x32 3ab3ag fuseholders	Datasheet	1,194In Stock	¥448.5 ¥372.1 ¥343.8 ¥285.7 View ¥264.1 ¥192.7 ¥191	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes 3.0SMCJ - CA 48V 3.0SMCJ48CA Littelfuse 1: ¥219.3 14,500In Stock	Mfr. Part # 3.0SMCJ48CA Mouser Part # 576-3.0SMCJ48CA	Littelfuse	ESD Protection Diodes / TVS Diodes 3.0SMCJ - CA 48V Learn More about Littelfuse 30smcj tvs diodes	Datasheet	14,500In Stock	Cut Tape ¥219.3 ¥138.4 ¥103.5 ¥92 Reel ¥69.4 View ¥72.1 ¥67.3 ¥63.8 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 5kW 22V 5% Uni-Directional 5.0SMDJ22A Littelfuse 1: ¥406.9 2,767In Stock	Mfr. Part # 5.0SMDJ22A Mouser Part # 576-5.0SMDJ22A	Littelfuse	ESD Protection Diodes / TVS Diodes 5kW 22V 5% Uni-Directional Learn More about Littelfuse tvsdiodes	Datasheet	2,767In Stock	Cut Tape ¥406.9 ¥262.4 ¥199.3 ¥179.4 View Reel ¥104.6 ¥139.5 ¥127.7 ¥104.6 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 40Vso 31VAC 78A 5KP40A Littelfuse 1: ¥604.6 2,031In Stock 1,600Expected 5/4/2027	Mfr. Part # 5KP40A Mouser Part # 576-5KP40A	Littelfuse	ESD Protection Diodes / TVS Diodes 40Vso 31VAC 78A Learn More about Littelfuse 5kp tvs diodes	Datasheet	2,031In Stock 1,600Expected 5/4/2027	Cut Tape ¥604.6 ¥393.7 ¥313.9 ¥277.4 ¥197.7 Reel ¥197.7	Min.: 1 Mult.: 1 : 800
ESD Protection Diodes / TVS Diodes 477V 400W 5% Bi-directional P4SMA530CA Littelfuse 1: ¥167.8 10,132In Stock	Mfr. Part # P4SMA530CA Mouser Part # 576-P4SMA530CA	Littelfuse	ESD Protection Diodes / TVS Diodes 477V 400W 5% Bi-directional Learn More about Littelfuse tvsdiodes	Datasheet	10,132In Stock	Cut Tape ¥167.8 ¥77.2 ¥68.4 ¥52.7 Reel ¥32.1 View ¥50.2 ¥30.4 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
MOSFETs TO247 250V 120A N-CH X3CLASS IXFH120N25X3 IXYS 1: ¥2,963.2 886In Stock	Mfr. Part # IXFH120N25X3 Mouser Part # 747-IXFH120N25X3	IXYS	MOSFETs TO247 250V 120A N-CH X3CLASS Learn More about IXYS x3 hiperfet mosfets	Datasheet	886In Stock	¥2,963.2 ¥1,724.1	Min.: 1 Mult.: 1

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