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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 1500W 8.55V Bi-Directional 1.5KE10CA Littelfuse 1: $1.12 4,595In Stock	Mfr. Part No. 1.5KE10CA Mouser Part No 576-1.5KE10CA	Littelfuse	ESD Protection Diodes / TVS Diodes 1500W 8.55V Bi-Directional Learn More about Littelfuse 1.5ke series diodes	Datasheet	4,595In Stock	Cut Tape $1.12 $0.416 $0.37 $0.305 Reel $0.258	Min.: 1 Mult.: 1 : 1,200
ESD Protection Diodes / TVS Diodes 1.5kW 100V 5% Bi-Directional 1.5SMC100CA Littelfuse 1: $0.80 4,158In Stock	Mfr. Part No. 1.5SMC100CA Mouser Part No 576-1.5SMC100CA	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 100V 5% Bi-Directional Learn More about Littelfuse tvsdiodes	Datasheet	4,158In Stock	Cut Tape $0.80 $0.554 $0.461 $0.372 $0.337 Reel $0.255 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 16V 5% Bi-Directional 1.5SMC16CA Littelfuse 1: $0.60 4,570In Stock	Mfr. Part No. 1.5SMC16CA Mouser Part No 576-1.5SMC16CA	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 16V 5% Bi-Directional Learn More about Littelfuse tvsdiodes	Datasheet	4,570In Stock	Cut Tape $0.60 $0.399 $0.344 $0.247 $0.242 Reel $0.242 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 20V 5% Uni-Directional 1.5SMC20A Littelfuse 1: $0.55 4,112In Stock	Mfr. Part No. 1.5SMC20A Mouser Part No 576-1.5SMC20A	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 20V 5% Uni-Directional Learn More about Littelfuse tvsdiodes	Datasheet	4,112In Stock	Cut Tape $0.55 $0.514 $0.405 $0.335 $0.317 Reel $0.23 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 250V 5% Bi-Directional 1.5SMC250CA Littelfuse 1: $1.14 2,868In Stock	Mfr. Part No. 1.5SMC250CA Mouser Part No 576-1.5SMC250CA	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 250V 5% Bi-Directional Learn More about Littelfuse tvsdiodes	Datasheet	2,868In Stock	Cut Tape $1.14 $0.599 $0.497 $0.39 $0.352 Reel $0.281 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5kW 540V 5% Uni-Directional 1.5SMC540A Littelfuse 1: $1.43 4,098In Stock	Mfr. Part No. 1.5SMC540A Mouser Part No 576-1.5SMC540A	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 540V 5% Uni-Directional Learn More about Littelfuse tvsdiodes	Datasheet	4,098In Stock	Cut Tape $1.43 $0.701 $0.599 $0.469 $0.445 Reel $0.397 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 13Vso 10VAC 232A 5KP13A Littelfuse 1: $3.05 807In Stock	Mfr. Part No. 5KP13A Mouser Part No 576-5KP13A	Littelfuse	ESD Protection Diodes / TVS Diodes 13Vso 10VAC 232A Learn More about Littelfuse 5kp tvs diodes	Datasheet	807In Stock	Cut Tape $3.05 $1.71 $1.60 $1.37 Reel $1.23	Min.: 1 Mult.: 1 : 800
ESD Protection Diodes / TVS Diodes 5KP9.0CA 5KP9.0CA Littelfuse 1: $3.26 742In Stock	Mfr. Part No. 5KP9.0CA Mouser Part No 576-5KP9.0CA	Littelfuse	ESD Protection Diodes / TVS Diodes 5KP9.0CA Learn More about Littelfuse 5kp tvs diodes	Datasheet	742In Stock	Cut Tape $3.26 $2.17 $1.95 $1.57 Reel $1.57	Min.: 1 Mult.: 1 : 800
ESD Protection Diodes / TVS Diodes 171Vso 190Vbr P4KE200CA Littelfuse 1: $0.85 4,130In Stock	Mfr. Part No. P4KE200CA Mouser Part No 576-P4KE200CA	Littelfuse	ESD Protection Diodes / TVS Diodes 171Vso 190Vbr Learn More about Littelfuse tvsdiodes	Datasheet	4,130In Stock	Cut Tape $0.85 $0.39 $0.344 $0.265 View Reel $0.194 $0.263 $0.233 $0.194	Min.: 1 Mult.: 1 : 5,000
ESD Protection Diodes / TVS Diodes 185Vso 209Vbr P4KE220CA Littelfuse 1: $0.84 4,207In Stock	Mfr. Part No. P4KE220CA Mouser Part No 576-P4KE220CA	Littelfuse	ESD Protection Diodes / TVS Diodes 185Vso 209Vbr Learn More about Littelfuse tvsdiodes	Datasheet	4,207In Stock	Cut Tape $0.84 $0.385 $0.34 $0.262 Reel $0.212 View $0.233 $0.202 $0.199	Min.: 1 Mult.: 1 : 5,000
ESD Protection Diodes / TVS Diodes 7.78Vso 8.65Vbr P4KE9.1A Littelfuse 1: $0.65 5,927In Stock	Mfr. Part No. P4KE9.1A Mouser Part No 576-P4KE9.1A	Littelfuse	ESD Protection Diodes / TVS Diodes 7.78Vso 8.65Vbr Learn More about Littelfuse tvsdiodes	Datasheet	5,927In Stock	Cut Tape $0.65 $0.308 $0.255 $0.208 Reel $0.124 View $0.173 $0.147 $0.11	Min.: 1 Mult.: 1 : 5,000
ESD Protection Diodes / TVS Diodes 25.6V 400W 5% Bi-directional P4SMA30CA Littelfuse 1: $0.49 8,446In Stock	Mfr. Part No. P4SMA30CA Mouser Part No 576-P4SMA30CA	Littelfuse	ESD Protection Diodes / TVS Diodes 25.6V 400W 5% Bi-directional Learn More about Littelfuse tvsdiodes	Datasheet	8,446In Stock	Cut Tape $0.49 $0.336 $0.19 $0.15 $0.135 Reel $0.135 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
ESD Protection Diodes / TVS Diodes 256Vr 600W 1.45A 5% Bi-Directional P6KE300CA Littelfuse 1: $0.511 3,899In Stock	Mfr. Part No. P6KE300CA Mouser Part No 576-P6KE300CA	Littelfuse	ESD Protection Diodes / TVS Diodes 256Vr 600W 1.45A 5% Bi-Directional Learn More about Littelfuse p6ke diodes	Datasheet	3,899In Stock	Cut Tape $0.511 $0.434 $0.385 $0.313 View Reel $0.206 $0.283 $0.245 $0.206	Min.: 1 Mult.: 1 : 4,000
ESD Protection Diodes / TVS Diodes SA20CA Bi-Directional SA20CA Littelfuse 1: $0.511 5,454In Stock	Mfr. Part No. SA20CA Mouser Part No 576-SA20CA	Littelfuse	ESD Protection Diodes / TVS Diodes SA20CA Bi-Directional Learn More about Littelfuse tvsdiodes	Datasheet	5,454In Stock	Cut Tape $0.511 $0.30 $0.276 $0.217 $0.197 Reel $0.197	Min.: 1 Mult.: 1 : 4,000
ESD Protection Diodes / TVS Diodes TVS 500W 26V SACB26 Littelfuse 1: $0.43 4,240In Stock	Mfr. Part No. SACB26 Mouser Part No 576-SACB26	Littelfuse	ESD Protection Diodes / TVS Diodes TVS 500W 26V Learn More about Littelfuse tvsdiodes	Datasheet	4,240In Stock	Cut Tape $0.43 $0.427 $0.402 $0.328 $0.297 Reel $0.242 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 400W 11V 5% Uni-Directional SMAJ11A Littelfuse 1: $0.28 14,536In Stock	Mfr. Part No. SMAJ11A Mouser Part No 576-SMAJ11A	Littelfuse	ESD Protection Diodes / TVS Diodes 400W 11V 5% Uni-Directional Learn More about Littelfuse smaj tvs 400w diodes	Datasheet	14,536In Stock	Cut Tape $0.28 $0.154 $0.142 $0.121 View Reel $0.117 $0.119 $0.117 $0.117 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
ESD Protection Diodes / TVS Diodes 400W 250V 5% Uni-Directional SMAJ250A Littelfuse 1: $0.511 7,202In Stock	Mfr. Part No. SMAJ250A Mouser Part No 576-SMAJ250A	Littelfuse	ESD Protection Diodes / TVS Diodes 400W 250V 5% Uni-Directional Learn More about Littelfuse smaj tvs 400w diodes	Datasheet	7,202In Stock	Cut Tape $0.511 $0.291 $0.25 $0.186 View Reel $0.166 $0.18 $0.171 $0.166 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
ESD Protection Diodes / TVS Diodes 600W 350V 5% Uni-Directional SMBJ350A Littelfuse 1: $0.74 5,359In Stock	Mfr. Part No. SMBJ350A Mouser Part No 576-SMBJ350A	Littelfuse	ESD Protection Diodes / TVS Diodes 600W 350V 5% Uni-Directional Learn More about Littelfuse smbj tvs diodes	Datasheet	5,359In Stock	Cut Tape $0.74 $0.376 $0.33 $0.252 $0.251 Reel $0.231 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
MOSFETs 200V/90A X3-Class HiPerFET IXFP90N20X3 IXYS 1: $10.22 254In Stock	Mfr. Part No. IXFP90N20X3 Mouser Part No 747-IXFP90N20X3	IXYS	MOSFETs 200V/90A X3-Class HiPerFET Learn More about IXYS x3 hiperfet mosfets	Datasheet	254In Stock	$10.22 $6.22 $5.33	Min.: 1 Mult.: 1
Bridge Rectifiers 25 Amps 1200V VUO25-12NO8 IXYS 1: $18.04 115In Stock	Mfr. Part No. VUO25-12NO8 Mouser Part No 747-VUO25-12NO8	IXYS	Bridge Rectifiers 25 Amps 1200V Learn More about IXYS 3 phase rectifier bridges	Datasheet	115In Stock	$18.04 $9.89	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes ZEN SMA TVS 400W 5.0V TR SC1SMA12AT3G Littelfuse 1: $0.611 4,985In Stock	Mfr. Part No. SC1SMA12AT3G Mouser Part No 863-SC1SMA12AT3G	Littelfuse	ESD Protection Diodes / TVS Diodes ZEN SMA TVS 400W 5.0V TR		4,985In Stock	Cut Tape $0.611 $0.376 $0.24 $0.202 Reel View $0.163 $0.14 $0.126 $0.119 $0.115	Min.: 1 Mult.: 1 : 5,000
NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 30K OHM 2% LUG USUR1000-303G-06 Littelfuse 1: $9.99 1In Stock 50Expected 2026/10/14	Mfr. Part No. USUR1000-303G-06 Mouser Part No 576-USUR1000-303G-06	Littelfuse	NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 30K OHM 2% LUG Learn More about Littelfuse thermistor probes assemblies	Datasheet	1In Stock 50Expected 2026/10/14	$9.99	Min.: 1 Mult.: 1
IGBT Modules XPT IGBT Module MIXA300PF1200TSF IXYS 1: $180.31 2In Stock	Mfr. Part No. MIXA300PF1200TSF Mouser Part No 747-MIXA300PF1200TSF	IXYS	IGBT Modules XPT IGBT Module Learn More about IXYS mixa igbts	Datasheet	2In Stock	$180.31 View $138.33	Min.: 1 Mult.: 1
Small Signal Switching Diodes 29 Amps 600V DSEP29-06AS-TUBE IXYS 1: $5.23 145In Stock	Mfr. Part No. DSEP29-06AS-TUBE Mouser Part No 747-DSEP29-06AS-TUBE	IXYS	Small Signal Switching Diodes 29 Amps 600V Learn More about IXYS littelfuse off board charger power converters	Datasheet	145In Stock	$5.23 $3.43 $2.55 View $2.13 $1.98 $1.85	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes ZEN SMB TVS 600W 68V TR SCP6SMB68AT3G Littelfuse 1: $1.28 442In Stock	Mfr. Part No. SCP6SMB68AT3G Mouser Part No 863-SCP6SMB68AT3G	Littelfuse	ESD Protection Diodes / TVS Diodes ZEN SMB TVS 600W 68V TR		442In Stock	Cut Tape $1.28 $0.804 $0.528 View Reel $0.311 $0.412 $0.372 $0.311	Min.: 1 Mult.: 1 : 2,500

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