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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.
Cartridge Fuses 250V .4A Slo-Blo 0213.400MXEP Littelfuse 1: $1.66 171In Stock	Mfr. Part No. 0213.400MXEP Mouser Part No 576-0213.400MXEP	Littelfuse	Cartridge Fuses 250V .4A Slo-Blo Learn More about Littelfuse 5x20 fuseholders	Datasheet	171In Stock	$1.66 $1.47 $1.40 $1.13 View $0.97 $0.928 $0.804 $0.785	Min.: 1 Mult.: 1
Cartridge Fuses 250V 1.25A Medium Acting 02321.25MXP Littelfuse 1: $1.45 582In Stock	Mfr. Part No. 02321.25MXP Mouser Part No 576-02321.25MXP	Littelfuse	Cartridge Fuses 250V 1.25A Medium Acting Learn More about Littelfuse 5x20 fuseholders	Datasheet	582In Stock	$1.45 $1.30 $1.22 $1.01 View $0.848 $0.818 $0.704 $0.699 $0.676	Min.: 1 Mult.: 1
Cartridge Fuses 125V 2A Medium Acting 0233002.MXEP Littelfuse 1: $2.34 552In Stock	Mfr. Part No. 0233002.MXEP Mouser Part No 576-0233002.MXEP	Littelfuse	Cartridge Fuses 125V 2A Medium Acting Learn More about Littelfuse 5x20 fuseholders	Datasheet	552In Stock	$2.34 $2.13 $2.04 $1.64 View $1.40 $1.35 $1.16 $1.15 $1.14	Min.: 1 Mult.: 1
Cartridge Fuses 125V 3A Medium Acting 0233003.MXEP Littelfuse 1: $2.34 594In Stock	Mfr. Part No. 0233003.MXEP Mouser Part No 576-0233003.MXEP	Littelfuse	Cartridge Fuses 125V 3A Medium Acting Learn More about Littelfuse 5x20 fuseholders	Datasheet	594In Stock	$2.34 $2.13 $2.04 $1.64 View $1.40 $1.35 $1.16 $1.15 $1.14	Min.: 1 Mult.: 1
Cartridge Fuses 125V 5X20MM ROHS 8A UL LBC MA PT 0233008.MXEP Littelfuse 1: $0.85 248In Stock	Mfr. Part No. 0233008.MXEP Mouser Part No 576-0233008.MXEP	Littelfuse	Cartridge Fuses 125V 5X20MM ROHS 8A UL LBC MA PT Learn More about Littelfuse 5x20 fuseholders	Datasheet	248In Stock	$0.85 $0.748 $0.725 $0.609 View $0.506 $0.461 $0.411 $0.406 $0.386	Min.: 1 Mult.: 1
Cartridge Fuses 125V 3.15A Medium Acting 02333.15MXEP Littelfuse 1: $2.34 409In Stock	Mfr. Part No. 02333.15MXEP Mouser Part No 576-02333.15MXEP	Littelfuse	Cartridge Fuses 125V 3.15A Medium Acting Learn More about Littelfuse 5x20 fuseholders	Datasheet	409In Stock	$2.34 $2.13 $2.04 $1.64 View $1.40 $1.35 $1.15 $1.14 $1.12	Min.: 1 Mult.: 1
Cartridge Fuses 250V 6A Medium Acting 0234006.MXEP Littelfuse 1: $2.44 85In Stock	Mfr. Part No. 0234006.MXEP Mouser Part No 576-0234006.MXEP	Littelfuse	Cartridge Fuses 250V 6A Medium Acting Learn More about Littelfuse 5x20 fuseholders	Datasheet	85In Stock	$2.44 $2.26 $2.15 $1.73 View $1.47 $1.43 $1.21 $1.17	Min.: 1 Mult.: 1
Automotive Fuses ATOF 32V 35A 0287035.H Littelfuse 1: $0.62 120In Stock	Mfr. Part No. 0287035.H Mouser Part No 576-0287035.H	Littelfuse	Automotive Fuses ATOF 32V 35A Learn More about Littelfuse 287 fuses	Datasheet	120In Stock	$0.62 $0.522 $0.506 $0.426 View $0.354 $0.29 $0.276 $0.254 $0.252	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes 1.5SMB - A 59.3V 1.5SMB43A Littelfuse 1: $1.14 2,350In Stock	Mfr. Part No. 1.5SMB43A Mouser Part No 576-1.5SMB43A	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5SMB - A 59.3V Learn More about Littelfuse tvsdiodes	Datasheet	2,350In Stock	Cut Tape $1.14 $0.614 $0.462 $0.357 Reel $0.262 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 64V 600W BI-DIR SZ1SMB AEC-Q101 SZ1SMB64CAT3G Littelfuse 1: $0.82 164In Stock	Mfr. Part No. SZ1SMB64CAT3G Mouser Part No 863-SZ1SMB64CAT3G	Littelfuse	ESD Protection Diodes / TVS Diodes 64V 600W BI-DIR SZ1SMB AEC-Q101 Learn More about Littelfuse sz1smb tvs diodes	Datasheet	164In Stock	Cut Tape $0.82 $0.507 $0.327 $0.25 $0.226 Reel $0.199 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 62V 600W BI-DIR SZP6SMB AEC-Q101 SZP6SMB62CAT3G Littelfuse 1: $0.82 4,605In Stock	Mfr. Part No. SZP6SMB62CAT3G Mouser Part No 863-SZP6SMB62CAT3G	Littelfuse	ESD Protection Diodes / TVS Diodes 62V 600W BI-DIR SZP6SMB AEC-Q101 Learn More about Littelfuse automotive tvs diodes	Datasheet	4,605In Stock	Cut Tape $0.82 $0.507 $0.327 $0.25 $0.226 Reel $0.20 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
Cartridge Fuses 250V 10A Slo-Blo 0215010.MXP-RES Littelfuse 1: $2.40 1,057In Stock	Mfr. Part No. 0215010.MXP-RES Mouser Part No 576-0215010.MXP-RES	Littelfuse	Cartridge Fuses 250V 10A Slo-Blo Learn More about Littelfuse 5x20 fuseholders	Datasheet	1,057In Stock	$2.40 $2.17 $2.06 $1.66 View $1.41 $1.26 $1.17 $1.14	Min.: 1 Mult.: 1
Cartridge Fuses 250V 2.5A Fast Acting 5x20 021602.5MXESPP Littelfuse 1: $1.01 1,725In Stock	Mfr. Part No. 021602.5MXESPP Mouser Part No 576-021602.5MXESPP	Littelfuse	Cartridge Fuses 250V 2.5A Fast Acting 5x20 Learn More about Littelfuse 216SPfuse	Datasheet	1,725In Stock	$1.01 $0.834 $0.769 $0.64 View $0.588 $0.53 $0.49 $0.405	Min.: 1 Mult.: 1
Cartridge Fuses 250V 6.3A Fast Acting 021606.3MXEP Littelfuse 1: $2.99 847In Stock 1,000Expected 2026/11/30	Mfr. Part No. 021606.3MXEP Mouser Part No 576-021606.3MXEP	Littelfuse	Cartridge Fuses 250V 6.3A Fast Acting Learn More about Littelfuse 5x20 fuseholders	Datasheet	847In Stock 1,000Expected 2026/11/30	$2.99 $2.48 $1.63 $1.49 View $1.42 $1.34	Min.: 1 Mult.: 1
Cartridge Fuses 250V 1A Time Lag (Slo-Blo) 0218001.MXEP Littelfuse 1: $2.52 835In Stock	Mfr. Part No. 0218001.MXEP Mouser Part No 576-0218001.MXEP	Littelfuse	Cartridge Fuses 250V 1A Time Lag (Slo-Blo) Learn More about Littelfuse 5x20 fuseholders	Datasheet	835In Stock	$2.52 $2.11 $1.94 $1.60 View $1.48 $1.33 $1.23 $1.12	Min.: 1 Mult.: 1
Cartridge Fuses 250V 1.25A Time Lag (Slo-Blo) 02181.25MXEP Littelfuse 1: $2.54 718In Stock	Mfr. Part No. 02181.25MXEP Mouser Part No 576-02181.25MXEP	Littelfuse	Cartridge Fuses 250V 1.25A Time Lag (Slo-Blo) Learn More about Littelfuse 5x20 fuseholders	Datasheet	718In Stock	$2.54 $2.35 $2.23 $1.80 View $1.54 $1.49 $1.26 $1.16 $1.12	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes 1500W 11.1V Bi-Directional 1.5KE13CA Littelfuse 1: $1.14 5,576In Stock	Mfr. Part No. 1.5KE13CA Mouser Part No 576-1.5KE13CA	Littelfuse	ESD Protection Diodes / TVS Diodes 1500W 11.1V Bi-Directional Learn More about Littelfuse 1.5ke series diodes	Datasheet	5,576In Stock	Cut Tape $1.14 $0.526 $0.461 $0.355 Reel $0.258	Min.: 1 Mult.: 1 : 1,200
ESD Protection Diodes / TVS Diodes 14Vso 11VAC 215A 5KP14A Littelfuse 1: $3.06 778In Stock	Mfr. Part No. 5KP14A Mouser Part No 576-5KP14A	Littelfuse	ESD Protection Diodes / TVS Diodes 14Vso 11VAC 215A Learn More about Littelfuse 5kp tvs diodes	Datasheet	778In Stock	Cut Tape $3.06 $1.90 $1.60 $1.26 Reel $1.23	Min.: 1 Mult.: 1 : 800
ESD Protection Diodes / TVS Diodes 15.3Vso 17.1Vbr P4KE18CA Littelfuse 1: $0.69 6,813In Stock	Mfr. Part No. P4KE18CA Mouser Part No 576-P4KE18CA	Littelfuse	ESD Protection Diodes / TVS Diodes 15.3Vso 17.1Vbr Learn More about Littelfuse tvsdiodes	Datasheet	6,813In Stock	Cut Tape $0.69 $0.333 $0.274 $0.208 View Reel $0.14 $0.18 $0.159 $0.14	Min.: 1 Mult.: 1 : 5,000
ESD Protection Diodes / TVS Diodes 64.1Vso 71.3Vbr P4KE75CA Littelfuse 1: $0.78 4,085In Stock	Mfr. Part No. P4KE75CA Mouser Part No 576-P4KE75CA	Littelfuse	ESD Protection Diodes / TVS Diodes 64.1Vso 71.3Vbr Learn More about Littelfuse tvsdiodes	Datasheet	4,085In Stock	Cut Tape $0.78 $0.358 $0.316 $0.242 Reel $0.202 View $0.209 $0.198	Min.: 1 Mult.: 1 : 5,000
ESD Protection Diodes / TVS Diodes 342V 400W 5% Uni-directional P4SMA400A Littelfuse 1: $0.84 7,870In Stock	Mfr. Part No. P4SMA400A Mouser Part No 576-P4SMA400A	Littelfuse	ESD Protection Diodes / TVS Diodes 342V 400W 5% Uni-directional Learn More about Littelfuse tvsdiodes	Datasheet	7,870In Stock	Cut Tape $0.84 $0.414 $0.298 $0.261 View Reel $0.163 $0.233 $0.215 $0.163 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
ESD Protection Diodes / TVS Diodes 30.8Vr 600W 12A 5% Uni-Directional P6KE36A Littelfuse 1: $0.40 9,938In Stock	Mfr. Part No. P6KE36A Mouser Part No 576-P6KE36A	Littelfuse	ESD Protection Diodes / TVS Diodes 30.8Vr 600W 12A 5% Uni-Directional Learn More about Littelfuse p6ke diodes	Datasheet	9,938In Stock	Cut Tape $0.40 $0.22 $0.204 $0.173 View Reel $0.151 $0.172 $0.17 $0.151	Min.: 1 Mult.: 1 : 4,000
ESD Protection Diodes / TVS Diodes SA17A Uni-Directional SA17A Littelfuse 1: $0.75 7,386In Stock	Mfr. Part No. SA17A Mouser Part No 576-SA17A	Littelfuse	ESD Protection Diodes / TVS Diodes SA17A Uni-Directional Learn More about Littelfuse tvsdiodes	Datasheet	7,386In Stock	Cut Tape $0.75 $0.358 $0.30 $0.228 View Reel $0.177 $0.216 $0.195 $0.177	Min.: 1 Mult.: 1 : 4,000
ESD Protection Diodes / TVS Diodes SA26A Uni-Directional SA26A Littelfuse 1: $0.45 7,069In Stock	Mfr. Part No. SA26A Mouser Part No 576-SA26A	Littelfuse	ESD Protection Diodes / TVS Diodes SA26A Uni-Directional Learn More about Littelfuse tvsdiodes	Datasheet	7,069In Stock	Cut Tape $0.45 $0.247 $0.226 $0.19 View Reel $0.177 $0.186 $0.18 $0.177	Min.: 1 Mult.: 1 : 4,000
ESD Protection Diodes / TVS Diodes SA51A Uni-Directional SA51A Littelfuse 1: $0.53 5,114In Stock	Mfr. Part No. SA51A Mouser Part No 576-SA51A	Littelfuse	ESD Protection Diodes / TVS Diodes SA51A Uni-Directional Learn More about Littelfuse tvsdiodes	Datasheet	5,114In Stock	Cut Tape $0.53 $0.326 $0.287 $0.219 View Reel $0.177 $0.197 $0.177 $0.177	Min.: 1 Mult.: 1 : 4,000

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