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Renewable Energy Solutions

Littelfuse provides a wide range of renewable energy solutions that include high-speed fuses, fast-acting relays, surge protection devices, and temperature sensors. These products from Littelfuse are designed to protect equipment from arc-flashes and fault conditions caused by equipment failure, phase-to-phase or ground faults, insulation breakdown, or temperature extremes. This selection of fuses, relays, surge protection devices, and temperature sensors can be found and used in Battery Energy Storage Systems (BESS), Solar/Photovoltaic (PV) energy solutions, and wind turbines.

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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.
PTC (Positive Temperature Coefficient) Thermistors 2K OHM 5% DO-35 202PS1J Littelfuse 1: $4.56 212In Stock	Mfr. Part No. 202PS1J Mouser Part No 803-202PS1J	Littelfuse	PTC (Positive Temperature Coefficient) Thermistors 2K OHM 5% DO-35 Learn More about Littelfuse do 35 standard	Datasheet	212In Stock	$4.56 $4.09 $3.91 $3.70 View $3.56 $3.26 $3.16 $3.06	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors 20K OHM .5% DEG C DO-35 203JL1A Littelfuse 1: $1.48 194In Stock	Mfr. Part No. 203JL1A Mouser Part No 803-203JL1A	Littelfuse	NTC (Negative Temperature Coefficient) Thermistors 20K OHM .5% DEG C DO-35 Learn More about Littelfuse jl do 35	Datasheet	194In Stock	$1.48 $1.41 $1.33 $1.26 View $1.14 $1.10 $1.06 $0.982	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors THERMISTOR,U.S.SENSOR P/ 302JH1K Littelfuse 1: $0.62 589In Stock	Mfr. Part No. 302JH1K Mouser Part No 803-302JH1K	Littelfuse	NTC (Negative Temperature Coefficient) Thermistors THERMISTOR,U.S.SENSOR P/ Learn More about Littelfuse do 35 standard	Datasheet	589In Stock	$0.62 $0.582 $0.544 $0.518 View $0.494 $0.445 $0.418 $0.383	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors THERMISTOR, US SENSOR 375Y1G2K Littelfuse 1: $0.99 1,464In Stock	Mfr. Part No. 375Y1G2K Mouser Part No 803-375Y1G2K	Littelfuse	NTC (Negative Temperature Coefficient) Thermistors THERMISTOR, US SENSOR Learn More about Littelfuse do 35 standard	Datasheet	1,464In Stock	$0.99 $0.941 $0.883 $0.841 View $0.804 $0.744 $0.716 $0.64	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors THERMISTOR, US SENSOR P/ 501FH1K Littelfuse 1: $0.64 68In Stock 500Expected 2026/10/08	Mfr. Part No. 501FH1K Mouser Part No 803-501FH1K	Littelfuse	NTC (Negative Temperature Coefficient) Thermistors THERMISTOR, US SENSOR P/ Learn More about Littelfuse do 35 standard	Datasheet	68In Stock 500Expected 2026/10/08	$0.64 $0.606 $0.566 $0.54 View $0.514 $0.464 $0.445 $0.408	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors 10K OHM 1% EPOXY COATED AC103J2F Littelfuse 1: $1.15 256In Stock	Mfr. Part No. AC103J2F Mouser Part No 803-AC103J2F	Littelfuse	NTC (Negative Temperature Coefficient) Thermistors 10K OHM 1% EPOXY COATED Learn More about Littelfuse renewable energy	Datasheet	256In Stock	$1.15 $1.10 $1.03 $0.884 View $0.868 $0.833 $0.75 $0.716	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR DC103J2K Littelfuse 1: $0.89 220In Stock	Mfr. Part No. DC103J2K Mouser Part No 803-DC103J2K	Littelfuse	NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR Learn More about Littelfuse renewable energy	Datasheet	220In Stock	$0.89 $0.841 $0.765 $0.726 View $0.704 $0.615 $0.564 $0.561	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR DC303J2K Littelfuse 1: $0.89 218In Stock	Mfr. Part No. DC303J2K Mouser Part No 803-DC303J2K	Littelfuse	NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR Learn More about Littelfuse renewable energy	Datasheet	218In Stock	$0.89 $0.841 $0.789 $0.752 View $0.719 $0.651 $0.626 $0.576	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors THERMISTOR, U.S. SENS LC103J2G Littelfuse 1: $1.48 285In Stock	Mfr. Part No. LC103J2G Mouser Part No 803-LC103J2G	Littelfuse	NTC (Negative Temperature Coefficient) Thermistors THERMISTOR, U.S. SENS Learn More about Littelfuse renewable energy	Datasheet	285In Stock	$1.48 $1.41 $1.33 $1.26 View $1.14 $1.10 $1.06 $0.982	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors 10K OHM 2% DO-35 USUG1000-103G Littelfuse 1: $1.38 65In Stock	Mfr. Part No. USUG1000-103G Mouser Part No 803-USUG1000-103G	Littelfuse	NTC (Negative Temperature Coefficient) Thermistors 10K OHM 2% DO-35 Learn More about Littelfuse renewable energy	Datasheet	65In Stock	$1.38 $1.33 $1.15 $1.08 View $0.979 $0.885 $0.851 $0.813 $0.75	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 100 O HM 10% EPOXY BEAD KC101B2K Littelfuse 1: $2.06 309In Stock	Mfr. Part No. KC101B2K Mouser Part No 576-KC101B2K	Littelfuse	NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 100 O HM 10% EPOXY BEAD Learn More about Littelfuse kc thermistors	Datasheet	309In Stock	$2.06 $1.97 $1.85 $1.76 View $1.70 $1.55 $1.49 $1.40	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 10K O HM 10% EPOXY BEAD KC103J2K Littelfuse 1: $2.47 412In Stock	Mfr. Part No. KC103J2K Mouser Part No 576-KC103J2K	Littelfuse	NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 10K O HM 10% EPOXY BEAD Learn More about Littelfuse kc thermistors	Datasheet	412In Stock	$2.47 $2.08 $1.88 $1.81 View $1.73 $1.54 $1.49 $1.40	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 20K OHM 10% EPOXY BEAD KC203J2K Littelfuse 1: $2.06 188In Stock	Mfr. Part No. KC203J2K Mouser Part No 576-KC203J2K	Littelfuse	NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 20K OHM 10% EPOXY BEAD Learn More about Littelfuse kc thermistors	Datasheet	188In Stock	$2.06 $1.88 $1.81 $1.73 View $1.70 $1.55 $1.49 $1.40	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 2.252M OHM EPOXY BEAD KC222J2K Littelfuse 1: $2.06 157In Stock	Mfr. Part No. KC222J2K Mouser Part No 576-KC222J2K	Littelfuse	NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 2.252M OHM EPOXY BEAD Learn More about Littelfuse kc thermistors	Datasheet	157In Stock	$2.06 $1.97 $1.85 $1.76 View $1.74 $1.60 $1.54 $1.49 $1.40	Min.: 1 Mult.: 1
Industrial & Electrical Fuses 125A 250VAC 250VDC FF L25S POWR-SPEED L25S125.V Littelfuse 1: $100.40 4In Stock	Mfr. Part No. L25S125.V Mouser Part No 576-L25S125.V	Littelfuse	Industrial & Electrical Fuses 125A 250VAC 250VDC FF L25S POWR-SPEED Learn More about Littelfuse fast acting high speed fuses	Datasheet	4In Stock	$100.40 $83.27 $74.34 $63.53 $58.49	Min.: 1 Mult.: 1
Industrial & Electrical Fuses 70A 500VAC 500VDC FF L50QS POWR-SPEED L50QS070.T Littelfuse 1: $70.57 11In Stock	Mfr. Part No. L50QS070.T Mouser Part No 576-L50QS070.T	Littelfuse	Industrial & Electrical Fuses 70A 500VAC 500VDC FF L50QS POWR-SPEED Learn More about Littelfuse qs high speed fuses	Datasheet	11In Stock	$70.57 $58.55 $54.01 $44.68 $41.16	Min.: 1 Mult.: 1
Industrial & Electrical Fuses 35A 700VAC 700VDC FF L70QS POWR-SPEED L70QS035.V Littelfuse 1: $103.80 3In Stock 6Expected 2027/01/01	Mfr. Part No. L70QS035.V Mouser Part No 576-L70QS035.V	Littelfuse	Industrial & Electrical Fuses 35A 700VAC 700VDC FF L70QS POWR-SPEED Learn More about Littelfuse qs high speed fuses	Datasheet	3In Stock 6Expected 2027/01/01	$103.80 $86.11 $79.41 $65.69 $60.48	Min.: 1 Mult.: 1
Industrial & Electrical Fuses 60A 700VAC 700VDC FF L70QS POWR-SPEED L70QS060.V Littelfuse 1: $103.80 23In Stock	Mfr. Part No. L70QS060.V Mouser Part No 576-L70QS060.V	Littelfuse	Industrial & Electrical Fuses 60A 700VAC 700VDC FF L70QS POWR-SPEED Learn More about Littelfuse qs high speed fuses	Datasheet	23In Stock	$103.80 $86.63 $82.29 $65.69 View $65.27 Quote	Min.: 1 Mult.: 1
Industrial & Electrical Fuses 175A 700VAC 700VDC FF L70QS POWR-SPEED L70QS175.V Littelfuse 1: $185.41 2In Stock	Mfr. Part No. L70QS175.V Mouser Part No 576-L70QS175.V	Littelfuse	Industrial & Electrical Fuses 175A 700VAC 700VDC FF L70QS POWR-SPEED Learn More about Littelfuse qs high speed fuses	Datasheet	2In Stock	$185.41 $143.96 $134.92 $117.14	Min.: 1 Mult.: 1
Industrial & Electrical Fuses 400A 700VAC 700VDC FF L70QS POWR-SPEED L70QS400.X Littelfuse 1: $256.46 4In Stock	Mfr. Part No. L70QS400.X Mouser Part No 576-L70QS400.X	Littelfuse	Industrial & Electrical Fuses 400A 700VAC 700VDC FF L70QS POWR-SPEED Learn More about Littelfuse qs high speed fuses	Datasheet	4In Stock	$256.46 $201.36 $191.55 $175.21	Min.: 1 Mult.: 1
Industrial & Electrical Fuses 500A 700VAC 700VDC FF L70QS POWR-SPEED L70QS500.X Littelfuse 1: $426.58 4In Stock	Mfr. Part No. L70QS500.X Mouser Part No 576-L70QS500.X	Littelfuse	Industrial & Electrical Fuses 500A 700VAC 700VDC FF L70QS POWR-SPEED Learn More about Littelfuse qs high speed fuses	Datasheet	4In Stock	$426.58 $343.46 $325.58 Quote Quote	Min.: 1 Mult.: 1
Industrial & Electrical Fuses 750V FAST BLOW 225A L75QS225.X Littelfuse 1: $279.68 3In Stock	Mfr. Part No. L75QS225.X Mouser Part No 576-L75QS225.X	Littelfuse	Industrial & Electrical Fuses 750V FAST BLOW 225A Learn More about Littelfuse hvac protection control solutions	Datasheet	3In Stock	$279.68 $227.30 $213.69 $176.50	Min.: 1 Mult.: 1
Industrial & Electrical Fuses 750VDC HIGHSPEED SEMICONDUCTOR FUSE 600A L75QS600.X Littelfuse 1: $448.78 2In Stock	Mfr. Part No. L75QS600.X Mouser Part No 576-L75QS600.X	Littelfuse	Industrial & Electrical Fuses 750VDC HIGHSPEED SEMICONDUCTOR FUSE 600A Learn More about Littelfuse hvac protection control solutions	Datasheet	2In Stock	$448.78 $345.32 $322.86 Quote Quote	Min.: 1 Mult.: 1
Current Sense Resistors - SMD 2512 0.5mohm 1% Shunt Resistor PSR100KTQFF0L50 ROHM Semiconductor 1: $2.42 13In Stock 5,000On Order	Mfr. Part No. PSR100KTQFF0L50 Mouser Part No 755-PSR100KTQFF0L50	ROHM Semiconductor	Current Sense Resistors - SMD 2512 0.5mohm 1% Shunt Resistor Learn More about ROHM Semiconductor rohm current sensing resistors	Datasheet	13In Stock 5,000On Order	Cut Tape $2.42 $1.55 $1.26 $1.10 View Reel $0.732 $0.961 $0.884 $0.84 $0.732 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
Current Sense Resistors - SMD 2512 1mohm 1% Shunt Resistor PSR100KTQFH1L00 ROHM Semiconductor 1: $2.12 2,006In Stock 10,000Expected 2026/11/12	Mfr. Part No. PSR100KTQFH1L00 Mouser Part No 755-PSR100KTQFH1L00	ROHM Semiconductor	Current Sense Resistors - SMD 2512 1mohm 1% Shunt Resistor Learn More about ROHM Semiconductor rohm current sensing resistors	Datasheet	2,006In Stock 10,000Expected 2026/11/12	Cut Tape $2.12 $1.41 $1.10 $0.989 Reel $0.685 View $0.875 $0.789 $0.743 $0.665 MouseReel Available	Min.: 1 Mult.: 1 : 5,000

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