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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 1.5kW 33V 5% Bi-Directional SMCJ33CA Littelfuse 1: $0.93 69,362In Stock	Mfr. Part No. SMCJ33CA Mouser Part No 576-SMCJ33CA	Littelfuse	ESD Protection Diodes / TVS Diodes 1.5kW 33V 5% Bi-Directional Learn More about Littelfuse smcj tvs 1500w diodes	Datasheet	69,362In Stock	Cut Tape $0.93 $0.473 $0.408 $0.321 $0.313 Reel $0.211 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 200W 3.3V 5% Uni-directional SMF3.3 Littelfuse 1: $0.64 202,402In Stock 486,000On Order	Mfr. Part No. SMF3.3 Mouser Part No 576-SMF3.3	Littelfuse	ESD Protection Diodes / TVS Diodes 200W 3.3V 5% Uni-directional Learn More about Littelfuse smf tvs diodes	Datasheet	202,402In Stock 486,000On Order On Order Ship Dates Mfr. No: SMF3.3 Stock: 202,402 Can Dispatch Immediately On Order: 237,000 Expected 2026/12/31 249,000 Expected 2027/05/04 Factory Lead Time: 30 Weeks	Cut Tape $0.64 $0.312 $0.254 $0.208 $0.172 Reel $0.147 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 0.25pFA 14V 0402 AEC-Q200 PESD0402-140 Littelfuse 1: $0.70 1,011,888In Stock	Mfr. Part No. PESD0402-140 Mouser Part No 650-PESD0402-140	Littelfuse	ESD Protection Diodes / TVS Diodes 0.25pFA 14V 0402 AEC-Q200 Learn More about Littelfuse teconnectivity pesd	Datasheet	1,011,888In Stock	Cut Tape $0.70 $0.361 $0.317 $0.242 Reel $0.15 MouseReel Available	Min.: 1 Mult.: 1 : 10,000
Bridge Rectifiers 50 Amps 1600V FUO50-16N IXYS 1: $30.38 834In Stock 725Expected 2027/01/18	Mfr. Part No. FUO50-16N Mouser Part No 747-FUO50-16N	IXYS	Bridge Rectifiers 50 Amps 1600V Learn More about IXYS 3 phase rectifier bridges	Datasheet	834In Stock 725Expected 2027/01/18	$30.38 $21.82 $19.86 $19.65	Min.: 1 Mult.: 1
Bridge Rectifiers 40 Amps 1200V GUO40-12NO1 IXYS 1: $28.17 1,428In Stock	Mfr. Part No. GUO40-12NO1 Mouser Part No 747-GUO40-12NO1	IXYS	Bridge Rectifiers 40 Amps 1200V Learn More about IXYS 3 phase rectifier bridges	Datasheet	1,428In Stock	$28.17 $19.13	Min.: 1 Mult.: 1
MOSFETs 250V UltraJunc X3 Pwr MOSFET IXFK240N25X3 IXYS 1: $37.70 602In Stock	Mfr. Part No. IXFK240N25X3 Mouser Part No 747-IXFK240N25X3	IXYS	MOSFETs 250V UltraJunc X3 Pwr MOSFET Learn More about IXYS x3 hiperfet mosfets	Datasheet	602In Stock	$37.70 $29.48	Min.: 1 Mult.: 1
MOSFET Modules MBLOC 300V 210A N-CH X3CLASS IXFN210N30X3 IXYS 1: $54.99 431In Stock	Mfr. Part No. IXFN210N30X3 Mouser Part No 747-IXFN210N30X3	IXYS	MOSFET Modules MBLOC 300V 210A N-CH X3CLASS Learn More about IXYS x3 hiperfet mosfets	Datasheet	431In Stock	$54.99 $48.60 $44.55	Min.: 1 Mult.: 1
Bridge Rectifiers 75 Amps 600V VUE75-06NO7 IXYS 1: $27.11 1,019In Stock	Mfr. Part No. VUE75-06NO7 Mouser Part No 747-VUE75-06NO7	IXYS	Bridge Rectifiers 75 Amps 600V Learn More about IXYS 3 phase rectifier bridges	Datasheet	1,019In Stock	$27.11 $18.47 $17.25	Min.: 1 Mult.: 1
Sensor Fixings & Accessories MAGNET ACTUATOR FOR 59140 AND 59141 57140-000 Littelfuse 1: $2.11 39,722In Stock	Mfr. Part No. 57140-000 Mouser Part No 934-57140-000	Littelfuse	Sensor Fixings & Accessories MAGNET ACTUATOR FOR 59140 AND 59141 Learn More about Littelfuse magnetic actuators	Datasheet	39,722In Stock	$2.11 $1.88 $1.69 $1.62 View $1.51 $1.42 $1.41	Min.: 1 Mult.: 1
Proximity Sensors PROX SENSOR MINI FLANGE MOUNT 59140-1-S-02-A Littelfuse 1: $3.76 5,733In Stock 2,600Expected 2026/10/13	Mfr. Part No. 59140-1-S-02-A Mouser Part No 934-59140-1-S-02-A	Littelfuse	Proximity Sensors PROX SENSOR MINI FLANGE MOUNT Learn More about Littelfuse reed sensors	Datasheet	5,733In Stock 2,600Expected 2026/10/13	$3.76 $3.37 $3.22 $3.05 View $2.93 $2.86	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes TVS SMTO HI-POWER 14A 5mA 10uA SM8S14A Littelfuse 1: $3.95 460In Stock	Mfr. Part No. SM8S14A Mouser Part No 576-SM8S14A	Littelfuse	ESD Protection Diodes / TVS Diodes TVS SMTO HI-POWER 14A 5mA 10uA Learn More about Littelfuse sm8s tvs diodes	Datasheet	460In Stock	Cut Tape $3.95 $2.06 $1.87 Reel $1.43 MouseReel Available	Min.: 1 Mult.: 1 : 500
ESD Protection Diodes / TVS Diodes TVS SMTO HI-POWER 15A 5mA 10uA SM8S15A Littelfuse 1: $3.95 292In Stock	Mfr. Part No. SM8S15A Mouser Part No 576-SM8S15A	Littelfuse	ESD Protection Diodes / TVS Diodes TVS SMTO HI-POWER 15A 5mA 10uA Learn More about Littelfuse sm8s tvs diodes	Datasheet	292In Stock	Cut Tape $3.95 $2.58 $1.87 Reel $1.43 MouseReel Available	Min.: 1 Mult.: 1 : 500
ESD Protection Diodes / TVS Diodes TVS SMTO HI-POWER 16A 5mA 2uA SM8S16A Littelfuse 1: $3.95 458In Stock	Mfr. Part No. SM8S16A Mouser Part No 576-SM8S16A	Littelfuse	ESD Protection Diodes / TVS Diodes TVS SMTO HI-POWER 16A 5mA 2uA Learn More about Littelfuse sm8s tvs diodes	Datasheet	458In Stock	Cut Tape $3.95 $2.06 $1.87 Reel $1.43 MouseReel Available	Min.: 1 Mult.: 1 : 500
ESD Protection Diodes / TVS Diodes TVS SMTO HI-POWER 17A 5mA 2uA SM8S17A Littelfuse 1: $3.95 500In Stock	Mfr. Part No. SM8S17A Mouser Part No 576-SM8S17A	Littelfuse	ESD Protection Diodes / TVS Diodes TVS SMTO HI-POWER 17A 5mA 2uA Learn More about Littelfuse sm8s tvs diodes	Datasheet	500In Stock	Cut Tape $3.95 $2.58 $1.87 Reel $1.76 $1.60 $1.54 MouseReel Available	Min.: 1 Mult.: 1 : 500
ESD Protection Diodes / TVS Diodes TVS SMTO HI-POWER 18A 5mA 2uA SM8S18A Littelfuse 1: $3.95 367In Stock	Mfr. Part No. SM8S18A Mouser Part No 576-SM8S18A	Littelfuse	ESD Protection Diodes / TVS Diodes TVS SMTO HI-POWER 18A 5mA 2uA Learn More about Littelfuse sm8s tvs diodes	Datasheet	367In Stock	Cut Tape $3.95 $2.06 $1.87 Reel $1.43 MouseReel Available	Min.: 1 Mult.: 1 : 500
ESD Protection Diodes / TVS Diodes TVS SMTO HI-POWER 20A 5mA 2uA SM8S20A Littelfuse 1: $3.95 633In Stock	Mfr. Part No. SM8S20A Mouser Part No 576-SM8S20A	Littelfuse	ESD Protection Diodes / TVS Diodes TVS SMTO HI-POWER 20A 5mA 2uA Learn More about Littelfuse sm8s tvs diodes	Datasheet	633In Stock	Cut Tape $3.95 $2.06 $1.87 Reel $1.52 $1.43 MouseReel Available	Min.: 1 Mult.: 1 : 500
ESD Protection Diodes / TVS Diodes TVS SMTO HI-POWER 22A 5mA 2uA SM8S22A Littelfuse 1: $3.95 481In Stock	Mfr. Part No. SM8S22A Mouser Part No 576-SM8S22A	Littelfuse	ESD Protection Diodes / TVS Diodes TVS SMTO HI-POWER 22A 5mA 2uA Learn More about Littelfuse sm8s tvs diodes	Datasheet	481In Stock	Cut Tape $3.95 $2.58 $1.87 Reel $1.43 MouseReel Available	Min.: 1 Mult.: 1 : 500
ESD Protection Diodes / TVS Diodes TVS SMTO HI-POWER 26A 5mA 2uA SM8S26A Littelfuse 1: $3.95 226In Stock	Mfr. Part No. SM8S26A Mouser Part No 576-SM8S26A	Littelfuse	ESD Protection Diodes / TVS Diodes TVS SMTO HI-POWER 26A 5mA 2uA Learn More about Littelfuse sm8s tvs diodes	Datasheet	226In Stock	Cut Tape $3.95 $2.06 $1.87 Reel $1.43 MouseReel Available	Min.: 1 Mult.: 1 : 500
ESD Protection Diodes / TVS Diodes TVS SMTO HI-POWER 28A 5mA 2uA SM8S28A Littelfuse 1: $3.95 636In Stock	Mfr. Part No. SM8S28A Mouser Part No 576-SM8S28A	Littelfuse	ESD Protection Diodes / TVS Diodes TVS SMTO HI-POWER 28A 5mA 2uA Learn More about Littelfuse sm8s tvs diodes	Datasheet	636In Stock	Cut Tape $3.95 $2.58 $1.87 Reel $1.43 MouseReel Available	Min.: 1 Mult.: 1 : 500
ESD Protection Diodes / TVS Diodes TVS SMTO HI-POWER 30A 5mA 2uA SM8S30A Littelfuse 1: $3.95 922In Stock	Mfr. Part No. SM8S30A Mouser Part No 576-SM8S30A	Littelfuse	ESD Protection Diodes / TVS Diodes TVS SMTO HI-POWER 30A 5mA 2uA Learn More about Littelfuse sm8s tvs diodes	Datasheet	922In Stock	Cut Tape $3.95 $2.06 $1.87 Reel $1.52 $1.43 MouseReel Available	Min.: 1 Mult.: 1 : 500
ESD Protection Diodes / TVS Diodes TVS SMTO HI-POWER 33A 5mA 2uA SM8S33A Littelfuse 1: $3.95 707In Stock	Mfr. Part No. SM8S33A Mouser Part No 576-SM8S33A	Littelfuse	ESD Protection Diodes / TVS Diodes TVS SMTO HI-POWER 33A 5mA 2uA Learn More about Littelfuse sm8s tvs diodes	Datasheet	707In Stock	Cut Tape $3.95 $2.06 $1.87 Reel $1.43 MouseReel Available	Min.: 1 Mult.: 1 : 500
ESD Protection Diodes / TVS Diodes TVS SMTO HI-POWER 36A 5mA 2uA SM8S36A Littelfuse 1: $3.95 311In Stock 1,000Expected 2026/11/05	Mfr. Part No. SM8S36A Mouser Part No 576-SM8S36A	Littelfuse	ESD Protection Diodes / TVS Diodes TVS SMTO HI-POWER 36A 5mA 2uA Learn More about Littelfuse sm8s tvs diodes	Datasheet	311In Stock 1,000Expected 2026/11/05	Cut Tape $3.95 $2.58 $1.87 Reel $1.76 $1.60 $1.54 MouseReel Available	Min.: 1 Mult.: 1 : 500
ESD Protection Diodes / TVS Diodes TVS SMTO HI-POWER 43A 5mA 2uA SM8S43A Littelfuse 1: $3.95 248In Stock	Mfr. Part No. SM8S43A Mouser Part No 576-SM8S43A	Littelfuse	ESD Protection Diodes / TVS Diodes TVS SMTO HI-POWER 43A 5mA 2uA Learn More about Littelfuse sm8s tvs diodes	Datasheet	248In Stock	Cut Tape $3.95 $2.06 $1.87 Reel $1.43 MouseReel Available	Min.: 1 Mult.: 1 : 500
Automotive Fuses ATOF 32V 1A Low-Current Nylon 0287001.PXCN Littelfuse 1: $0.44 30,302In Stock	Mfr. Part No. 0287001.PXCN Mouser Part No 576-0287001.PXCN	Littelfuse	Automotive Fuses ATOF 32V 1A Low-Current Nylon Learn More about Littelfuse 287 fuses	Datasheet	30,302In Stock	$0.44 $0.361 $0.333 $0.277 View $0.244 $0.198	Min.: 1 Mult.: 1
Automotive Fuses ATOF 32V 2A Low-Current Nylon 0287002.PXCN Littelfuse 1: $0.44 50,681In Stock	Mfr. Part No. 0287002.PXCN Mouser Part No 576-0287002.PXCN	Littelfuse	Automotive Fuses ATOF 32V 2A Low-Current Nylon Learn More about Littelfuse 287 fuses	Datasheet	50,681In Stock	$0.44 $0.361 $0.333 $0.277 View $0.255 $0.23 $0.212 $0.20	Min.: 1 Mult.: 1

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