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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 (HKD) 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: HK$17.92 32,952In Stock	Mfr. Part No. 5.0SMDJ51A Mouser Part No 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 HK$17.92 HK$10.19 HK$8.47 HK$7.11 Reel HK$5.48 View HK$6.16 HK$5.18 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
MOSFET Modules 650V/145A Ultra Junction X2-Class IXFN150N65X2 IXYS 1: HK$523.20 853In Stock	Mfr. Part No. IXFN150N65X2 Mouser Part No 747-IXFN150N65X2	IXYS	MOSFET Modules 650V/145A Ultra Junction X2-Class Learn More about IXYS x2 hiperfet mosfets	Datasheet	853In Stock	HK$523.20 HK$415.19	Min.: 1 Mult.: 1
MOSFETs 250V/170A Ultra Junc tion X3-Class MOSFE IXFT170N25X3HV IXYS 1: HK$213.72 1,593In Stock	Mfr. Part No. IXFT170N25X3HV Mouser Part No 747-IXFT170N25X3HV	IXYS	MOSFETs 250V/170A Ultra Junc tion X3-Class MOSFE Learn More about IXYS x3 hiperfet mosfets	Datasheet	1,593In Stock	HK$213.72 HK$137.60	Min.: 1 Mult.: 1
Gate Drivers 14-Ampere Low-Side Ultrafast MOSFET IXDN614CI IXYS Integrated Circuits 1: HK$49.40 7,417In Stock	Mfr. Part No. IXDN614CI Mouser Part No 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	HK$49.40 HK$37.65 HK$31.07 HK$30.00 View HK$29.02 HK$28.52 HK$25.98 HK$25.89	Min.: 1 Mult.: 1
IGBT Modules 650V/234A Trench IGBT GenX4 XPT IXXN110N65C4H1 IXYS 1: HK$262.63 783In Stock	Mfr. Part No. IXXN110N65C4H1 Mouser Part No 747-IXXN110N65C4H1	IXYS	IGBT Modules 650V/234A Trench IGBT GenX4 XPT Learn More about IXYS IXYS XPT 650V IGBT	Datasheet	783In Stock	HK$262.63 HK$212.40 HK$206.65	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes 33V 200W UNI-DIR SZSMF AEC-Q101 SZSMF33AT1G Littelfuse 1: HK$4.93 178,703In Stock	Mfr. Part No. SZSMF33AT1G Mouser Part No 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 HK$4.93 HK$3.02 HK$2.20 HK$1.67 Reel HK$1.25 View HK$1.50 HK$1.17 HK$1.11 HK$1.01 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
MOSFET Modules MBLOC 150V 400A N-CH X3CLASS IXFN400N15X3 IXYS 1: HK$451.94 555In Stock	Mfr. Part No. IXFN400N15X3 Mouser Part No 747-IXFN400N15X3	IXYS	MOSFET Modules MBLOC 150V 400A N-CH X3CLASS Learn More about IXYS x3 hiperfet mosfets	Datasheet	555In Stock	HK$451.94 HK$346.97	Min.: 1 Mult.: 1
MOSFET Modules MBLOC 200V 300A N-CH X3CLASS IXFN300N20X3 IXYS 1: HK$423.17 559In Stock	Mfr. Part No. IXFN300N20X3 Mouser Part No 747-IXFN300N20X3	IXYS	MOSFET Modules MBLOC 200V 300A N-CH X3CLASS Learn More about IXYS x3 hiperfet mosfets	Datasheet	559In Stock	HK$423.17 HK$346.97	Min.: 1 Mult.: 1
IGBT Modules 1700V/85A High Voltage XPT IGBT IXYN30N170CV1 IXYS 1: HK$373.19 404In Stock	Mfr. Part No. IXYN30N170CV1 Mouser Part No 747-IXYN30N170CV1	IXYS	IGBT Modules 1700V/85A High Voltage XPT IGBT Learn More about IXYS 1700v xpt igbts	Datasheet	404In Stock	HK$373.19	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors 10K OHM 1% PROBE ASSEMBLY USP10975 Littelfuse 1: HK$77.27 3,210In Stock	Mfr. Part No. USP10975 Mouser Part No 803-USP10975	Littelfuse	NTC (Negative Temperature Coefficient) Thermistors 10K OHM 1% PROBE ASSEMBLY Learn More about Littelfuse thermistor probes assemblies	Datasheet	3,210In Stock	HK$77.27 HK$72.25 HK$69.05 HK$67.65 View HK$67.08 HK$65.18	Min.: 1 Mult.: 1
Cartridge Fuses 250V 4A Slo-Blo 0215004.MXEP Littelfuse 1: HK$19.97 12,261In Stock	Mfr. Part No. 0215004.MXEP Mouser Part No 576-0215004.MXEP	Littelfuse	Cartridge Fuses 250V 4A Slo-Blo Learn More about Littelfuse 5x20 fuseholders	Datasheet	12,261In Stock	HK$19.97 HK$19.40 HK$15.54 HK$14.39 View HK$13.32 HK$12.91 HK$12.33 HK$11.84 HK$11.75	Min.: 1 Mult.: 1
Cartridge Fuses 250V 8A Medium Acting 0234008.MXP Littelfuse 1: HK$10.69 24,158In Stock	Mfr. Part No. 0234008.MXP Mouser Part No 576-0234008.MXP	Littelfuse	Cartridge Fuses 250V 8A Medium Acting Learn More about Littelfuse 5x20 fuseholders	Datasheet	24,158In Stock	HK$10.69 HK$9.62 HK$8.80 HK$7.19 View HK$6.20 HK$5.93	Min.: 1 Mult.: 1
MOSFETs TO220 200V 72A N-CH X3CLASS IXFP72N20X3 IXYS 1: HK$93.54 3,498In Stock	Mfr. Part No. IXFP72N20X3 Mouser Part No 747-IXFP72N20X3	IXYS	MOSFETs TO220 200V 72A N-CH X3CLASS Learn More about IXYS x3 hiperfet mosfets	Datasheet	3,498In Stock	HK$93.54 HK$52.28 HK$48.17 HK$46.94	Min.: 1 Mult.: 1
IGBT Modules Mid-Frequency Range PT IGBTs IXGN400N60B3 IXYS 1: HK$635.73 440In Stock	Mfr. Part No. IXGN400N60B3 Mouser Part No 747-IXGN400N60B3	IXYS	IGBT Modules Mid-Frequency Range PT IGBTs	Datasheet	440In Stock	HK$635.73 HK$532.16	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes ESD 430V BI AK6-430C-Y Littelfuse 1: HK$634.58 89In Stock	Mfr. Part No. AK6-430C-Y Mouser Part No 576-AK6-430C-Y	Littelfuse	ESD Protection Diodes / TVS Diodes ESD 430V BI Learn More about Littelfuse tvsdiodes	Datasheet	89In Stock	HK$634.58 HK$566.44 HK$566.36	Min.: 1 Mult.: 1
Cartridge Fuses 250V .032A Time Lag (Slo-Blo) 0218.032MXEP Littelfuse 1: HK$37.89 989In Stock 1,000Expected 26/10/2026	Mfr. Part No. 0218.032MXEP Mouser Part No 576-0218.032MXEP	Littelfuse	Cartridge Fuses 250V .032A Time Lag (Slo-Blo) Learn More about Littelfuse 5x20 fuseholders	Datasheet	989In Stock 1,000Expected 26/10/2026	HK$37.89 HK$35.26 HK$34.03 HK$26.80 View HK$22.19 HK$21.29 HK$19.15	Min.: 1 Mult.: 1
Proximity Sensors 59140-4-U-02-A SENS 59140-4-U-02-A Littelfuse 1: HK$40.69 480In Stock	Mfr. Part No. 59140-4-U-02-A Mouser Part No 934-59140-4-U-02-A	Littelfuse	Proximity Sensors 59140-4-U-02-A SENS Learn More about Littelfuse reed sensors	Datasheet	480In Stock	HK$40.69 HK$36.66 HK$35.10 HK$33.29 View HK$32.06 HK$30.83 HK$30.09	Min.: 1 Mult.: 1
Cartridge Fuses 250V .1A Fast Acting 0216.100MXP Littelfuse 1: HK$18.33 2,260In Stock	Mfr. Part No. 0216.100MXP Mouser Part No 576-0216.100MXP	Littelfuse	Cartridge Fuses 250V .1A Fast Acting Learn More about Littelfuse 5x20 fuseholders	Datasheet	2,260In Stock	HK$18.33 HK$15.78 HK$13.73 HK$12.08 View HK$11.18 HK$9.62 HK$8.71 HK$8.01	Min.: 1 Mult.: 1
Cartridge Fuses 250V 8A Fast Acting 0216008.MXEP Littelfuse 1: HK$14.30 1,079In Stock	Mfr. Part No. 0216008.MXEP Mouser Part No 576-0216008.MXEP	Littelfuse	Cartridge Fuses 250V 8A Fast Acting Learn More about Littelfuse 5x20 fuseholders	Datasheet	1,079In Stock	HK$14.30 HK$12.91 HK$11.43 HK$10.69 HK$10.60	Min.: 1 Mult.: 1
Cartridge Fuses 250V 1.6A Fast Acting 021601.6MXEP Littelfuse 1: HK$24.58 1,451In Stock	Mfr. Part No. 021601.6MXEP Mouser Part No 576-021601.6MXEP	Littelfuse	Cartridge Fuses 250V 1.6A Fast Acting Learn More about Littelfuse 5x20 fuseholders	Datasheet	1,451In Stock	HK$24.58 HK$20.39 HK$18.82 HK$15.62 View HK$14.39 HK$12.99 HK$11.92 HK$10.60	Min.: 1 Mult.: 1
Cartridge Fuses 250V 10A Fast Acting 0216010.MXP Littelfuse 1: HK$17.18 7,875In Stock	Mfr. Part No. 0216010.MXP Mouser Part No 576-0216010.MXP	Littelfuse	Cartridge Fuses 250V 10A Fast Acting Learn More about Littelfuse 5x20 fuseholders	Datasheet	7,875In Stock	HK$17.18 HK$14.39 HK$10.60 HK$9.78 View HK$8.71 HK$7.24 HK$7.23	Min.: 1 Mult.: 1
Cartridge Fuses 250V .04A Time Lag (Slo-Blo) 0218.040MXP Littelfuse 1: HK$24.58 965In Stock	Mfr. Part No. 0218.040MXP Mouser Part No 576-0218.040MXP	Littelfuse	Cartridge Fuses 250V .04A Time Lag (Slo-Blo) Learn More about Littelfuse 5x20 fuseholders	Datasheet	965In Stock	HK$24.58 HK$21.13 HK$19.65 HK$16.85 View HK$15.37 HK$14.14 HK$13.23 HK$13.15 HK$12.99	Min.: 1 Mult.: 1
Cartridge Fuses 250V .08A Time Lag (Slo-Blo) 0218.080MXP Littelfuse 1: HK$27.62 1,529In Stock	Mfr. Part No. 0218.080MXP Mouser Part No 576-0218.080MXP	Littelfuse	Cartridge Fuses 250V .08A Time Lag (Slo-Blo) Learn More about Littelfuse 5x20 fuseholders	Datasheet	1,529In Stock	HK$27.62 HK$23.59 HK$17.26 HK$15.54 View HK$14.39 HK$12.99	Min.: 1 Mult.: 1
Cartridge Fuses 250V .3A Fast Acting 0235.300MXP Littelfuse 1: HK$11.59 11,843In Stock	Mfr. Part No. 0235.300MXP Mouser Part No 576-0235.300MXP	Littelfuse	Cartridge Fuses 250V .3A Fast Acting Learn More about Littelfuse 5x20 fuseholders	Datasheet	11,843In Stock	HK$11.59 HK$9.62 HK$8.88 HK$7.37 View HK$6.80 HK$6.12 HK$5.64 HK$4.65	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes 1500W 376V Uni-Directional 1.5KE440A Littelfuse 1: HK$5.59 8,871In Stock	Mfr. Part No. 1.5KE440A Mouser Part No 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 HK$5.59 HK$4.75 HK$3.24 HK$2.80 Reel HK$2.70 View HK$2.56 HK$2.52	Min.: 1 Mult.: 1 : 1,200

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