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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 (USD) Filter the results in the table by unit price based on your quantity.	Qty.
ESD Protection Diodes / TVS Diodes 5kW 51V 5% Uni-Directional 5.0SMDJ51A Littelfuse 1: $2.18 32,952In 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	32,952In Stock	Cut Tape $2.18 $1.24 $1.03 $0.865 Reel $0.667 View $0.749 $0.63 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
MOSFET Modules 650V/145A Ultra Junction X2-Class IXFN150N65X2 IXYS 1: $63.65 853In 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	853In Stock	$63.65 $50.51	Min.: 1 Mult.: 1
MOSFETs 250V/170A Ultra Junc tion X3-Class MOSFE IXFT170N25X3HV IXYS 1: $26.00 1,593In Stock	Mfr. Part # IXFT170N25X3HV Mouser Part # 747-IXFT170N25X3HV	IXYS	MOSFETs 250V/170A Ultra Junc tion X3-Class MOSFE Learn More about IXYS x3 hiperfet mosfets	Datasheet	1,593In Stock	$26.00 $16.74	Min.: 1 Mult.: 1
Gate Drivers 14-Ampere Low-Side Ultrafast MOSFET IXDN614CI IXYS Integrated Circuits 1: $6.01 7,417In 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	7,417In Stock	$6.01 $4.58 $3.78 $3.65 View $3.53 $3.47 $3.16 $3.15	Min.: 1 Mult.: 1
IGBT Modules 650V/234A Trench IGBT GenX4 XPT IXXN110N65C4H1 IXYS 1: $31.95 783In Stock	Mfr. Part # IXXN110N65C4H1 Mouser Part # 747-IXXN110N65C4H1	IXYS	IGBT Modules 650V/234A Trench IGBT GenX4 XPT Learn More about IXYS IXYS XPT 650V IGBT	Datasheet	783In Stock	$31.95 $25.84 $25.14	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes 33V 200W UNI-DIR SZSMF AEC-Q101 SZSMF33AT1G Littelfuse 1: $0.60 178,703In 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	178,703In Stock	Cut Tape $0.60 $0.368 $0.268 $0.203 Reel $0.152 View $0.183 $0.142 $0.135 $0.123 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
MOSFET Modules MBLOC 150V 400A N-CH X3CLASS IXFN400N15X3 IXYS 1: $54.98 555In 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	555In Stock	$54.98 $42.21	Min.: 1 Mult.: 1
MOSFET Modules MBLOC 200V 300A N-CH X3CLASS IXFN300N20X3 IXYS 1: $51.48 559In 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	559In Stock	$51.48 $42.21	Min.: 1 Mult.: 1
IGBT Modules 1700V/85A High Voltage XPT IGBT IXYN30N170CV1 IXYS 1: $45.40 404In Stock	Mfr. Part # IXYN30N170CV1 Mouser Part # 747-IXYN30N170CV1	IXYS	IGBT Modules 1700V/85A High Voltage XPT IGBT Learn More about IXYS 1700v xpt igbts	Datasheet	404In Stock	$45.40	Min.: 1 Mult.: 1
NTC Thermistors 10K OHM 1% PROBE ASSEMBLY USP10975 Littelfuse 1: $9.40 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	$9.40 $8.79 $8.40 $8.23 View $8.16 $7.93	Min.: 1 Mult.: 1
Cartridge Fuses 250V 4A Slo-Blo 0215004.MXEP Littelfuse 1: $2.43 12,261In Stock	Mfr. Part # 0215004.MXEP Mouser Part # 576-0215004.MXEP	Littelfuse	Cartridge Fuses 250V 4A Slo-Blo Learn More about Littelfuse 5x20 fuseholders	Datasheet	12,261In Stock	$2.43 $2.36 $1.89 $1.75 View $1.62 $1.57 $1.50 $1.44 $1.43	Min.: 1 Mult.: 1
Cartridge Fuses 250V 8A Medium Acting 0234008.MXP Littelfuse 1: $1.30 24,158In Stock	Mfr. Part # 0234008.MXP Mouser Part # 576-0234008.MXP	Littelfuse	Cartridge Fuses 250V 8A Medium Acting Learn More about Littelfuse 5x20 fuseholders	Datasheet	24,158In Stock	$1.30 $1.17 $1.07 $0.875 View $0.754 $0.721	Min.: 1 Mult.: 1
MOSFETs TO220 200V 72A N-CH X3CLASS IXFP72N20X3 IXYS 1: $11.38 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	$11.38 $6.36 $5.86 $5.71	Min.: 1 Mult.: 1
IGBT Modules Mid-Frequency Range PT IGBTs IXGN400N60B3 IXYS 1: $77.34 440In Stock	Mfr. Part # IXGN400N60B3 Mouser Part # 747-IXGN400N60B3	IXYS	IGBT Modules Mid-Frequency Range PT IGBTs	Datasheet	440In Stock	$77.34 $64.74	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes ESD 430V BI AK6-430C-Y Littelfuse 1: $77.20 89In Stock	Mfr. Part # AK6-430C-Y Mouser Part # 576-AK6-430C-Y	Littelfuse	ESD Protection Diodes / TVS Diodes ESD 430V BI Learn More about Littelfuse tvsdiodes	Datasheet	89In Stock	$77.20 $68.91 $68.90	Min.: 1 Mult.: 1
Cartridge Fuses 250V .032A Time Lag (Slo-Blo) 0218.032MXEP Littelfuse 1: $4.61 989In Stock 1,000Expected 10/26/2026	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	989In Stock 1,000Expected 10/26/2026	$4.61 $4.29 $4.14 $3.26 View $2.70 $2.59 $2.33	Min.: 1 Mult.: 1
Proximity Sensors 59140-4-U-02-A SENS 59140-4-U-02-A Littelfuse 1: $4.95 480In Stock	Mfr. Part # 59140-4-U-02-A Mouser Part # 934-59140-4-U-02-A	Littelfuse	Proximity Sensors 59140-4-U-02-A SENS Learn More about Littelfuse reed sensors	Datasheet	480In Stock	$4.95 $4.46 $4.27 $4.05 View $3.90 $3.75 $3.66	Min.: 1 Mult.: 1
Cartridge Fuses 250V .1A Fast Acting 0216.100MXP Littelfuse 1: $2.23 2,260In Stock	Mfr. Part # 0216.100MXP Mouser Part # 576-0216.100MXP	Littelfuse	Cartridge Fuses 250V .1A Fast Acting Learn More about Littelfuse 5x20 fuseholders	Datasheet	2,260In Stock	$2.23 $1.92 $1.67 $1.47 View $1.36 $1.17 $1.06 $0.975	Min.: 1 Mult.: 1
Cartridge Fuses 250V 8A Fast Acting 0216008.MXEP Littelfuse 1: $1.74 1,079In Stock	Mfr. Part # 0216008.MXEP Mouser Part # 576-0216008.MXEP	Littelfuse	Cartridge Fuses 250V 8A Fast Acting Learn More about Littelfuse 5x20 fuseholders	Datasheet	1,079In Stock	$1.74 $1.57 $1.39 $1.30 $1.29	Min.: 1 Mult.: 1
Cartridge Fuses 250V 1.6A Fast Acting 021601.6MXEP Littelfuse 1: $2.99 1,451In Stock	Mfr. Part # 021601.6MXEP Mouser Part # 576-021601.6MXEP	Littelfuse	Cartridge Fuses 250V 1.6A Fast Acting Learn More about Littelfuse 5x20 fuseholders	Datasheet	1,451In Stock	$2.99 $2.48 $2.29 $1.90 View $1.75 $1.58 $1.45 $1.29	Min.: 1 Mult.: 1
Cartridge Fuses 250V 10A Fast Acting 0216010.MXP Littelfuse 1: $2.09 7,875In Stock	Mfr. Part # 0216010.MXP Mouser Part # 576-0216010.MXP	Littelfuse	Cartridge Fuses 250V 10A Fast Acting Learn More about Littelfuse 5x20 fuseholders	Datasheet	7,875In Stock	$2.09 $1.75 $1.29 $1.19 View $1.06 $0.881 $0.88	Min.: 1 Mult.: 1
Cartridge Fuses 250V .04A Time Lag (Slo-Blo) 0218.040MXP Littelfuse 1: $2.99 965In Stock	Mfr. Part # 0218.040MXP Mouser Part # 576-0218.040MXP	Littelfuse	Cartridge Fuses 250V .04A Time Lag (Slo-Blo) Learn More about Littelfuse 5x20 fuseholders	Datasheet	965In Stock	$2.99 $2.57 $2.39 $2.05 View $1.87 $1.72 $1.61 $1.60 $1.58	Min.: 1 Mult.: 1
Cartridge Fuses 250V .08A Time Lag (Slo-Blo) 0218.080MXP Littelfuse 1: $3.36 1,529In Stock	Mfr. Part # 0218.080MXP Mouser Part # 576-0218.080MXP	Littelfuse	Cartridge Fuses 250V .08A Time Lag (Slo-Blo) Learn More about Littelfuse 5x20 fuseholders	Datasheet	1,529In Stock	$3.36 $2.87 $2.10 $1.89 View $1.75 $1.58	Min.: 1 Mult.: 1
Cartridge Fuses 250V .3A Fast Acting 0235.300MXP Littelfuse 1: $1.41 11,843In Stock	Mfr. Part # 0235.300MXP Mouser Part # 576-0235.300MXP	Littelfuse	Cartridge Fuses 250V .3A Fast Acting Learn More about Littelfuse 5x20 fuseholders	Datasheet	11,843In Stock	$1.41 $1.17 $1.08 $0.897 View $0.827 $0.744 $0.686 $0.566	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes 1500W 376V Uni-Directional 1.5KE440A Littelfuse 1: $0.68 8,871In Stock	Mfr. Part # 1.5KE440A Mouser Part # 576-1.5KE440A	Littelfuse	ESD Protection Diodes / TVS Diodes 1500W 376V Uni-Directional Learn More about Littelfuse 1.5ke series diodes	Datasheet	8,871In Stock	Cut Tape $0.68 $0.578 $0.394 $0.341 Reel $0.328 View $0.312 $0.307	Min.: 1 Mult.: 1 : 1,200

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