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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.
Current Sense Resistors - SMD 3921 0.0003ohm 1% Shunt Res AEC-Q200 PSR400ITQFD0L30 ROHM Semiconductor 1: $3.30 1,920In Stock	Mfr. Part No. PSR400ITQFD0L30 Mouser Part No 755-PSR400ITQFD0L30	ROHM Semiconductor	Current Sense Resistors - SMD 3921 0.0003ohm 1% Shunt Res AEC-Q200 Learn More about ROHM Semiconductor rohm current sensing resistors	Datasheet	1,920In Stock	Cut Tape $3.30 $2.11 $1.73 $1.56 Reel $1.01 View $1.33 $1.22 $1.08 $0.986 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Current Sense Resistors - SMD 3921 0.0005ohm 1% Shunt Res AEC-Q200 PSR400ITQFF0L50 ROHM Semiconductor 1: $2.69 8,992In Stock	Mfr. Part No. PSR400ITQFF0L50 Mouser Part No 755-PSR400ITQFF0L50	ROHM Semiconductor	Current Sense Resistors - SMD 3921 0.0005ohm 1% Shunt Res AEC-Q200 Learn More about ROHM Semiconductor rohm current sensing resistors	Datasheet	8,992In Stock	Cut Tape $2.69 $1.79 $1.40 $1.27 Reel $0.814 View $1.13 $1.04 $0.864 $0.795 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Current Sense Resistors - SMD 5931 0.001ohm 1% Shunt Res AEC-Q200 PSR500HTQFH1L00 ROHM Semiconductor 1: $2.98 3,372In Stock	Mfr. Part No. PSR500HTQFH1L00 Mouser Part No 755-PSR500HTQFH1L00	ROHM Semiconductor	Current Sense Resistors - SMD 5931 0.001ohm 1% Shunt Res AEC-Q200 Learn More about ROHM Semiconductor rohm current sensing resistors	Datasheet	3,372In Stock	Cut Tape $2.98 $2.00 $1.56 $1.42 Reel $1.01 View $1.26 $1.17 $1.01 $0.916 $0.904 MouseReel Available	Min.: 1 Mult.: 1 : 2,000
Industrial & Electrical Fuses 250A 150VAC 100VDC FF L15S POWR-SPEED L15S250.T Littelfuse 1: $72.72 50In Stock 90Expected 2026/10/27	Mfr. Part No. L15S250.T Mouser Part No 576-L15S250.T	Littelfuse	Industrial & Electrical Fuses 250A 150VAC 100VDC FF L15S POWR-SPEED Learn More about Littelfuse fast acting high speed fuses	Datasheet	50In Stock 90Expected 2026/10/27	$72.72 $58.88 $53.31 $50.04 $45.46	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 1K OHM 10% GLASS BEAD GR102F1K Littelfuse 1: $0.82 331In Stock	Mfr. Part No. GR102F1K Mouser Part No 576-GR102F1K	Littelfuse	NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 1K OHM 10% GLASS BEAD Learn More about Littelfuse gr chip thermistors	Datasheet	331In Stock	$0.82 $0.772 $0.723 $0.69 View $0.658 $0.595 $0.572 $0.526	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors NTC THRM GLASS BEAD 3435 10K 10% GR103E1K Littelfuse 1: $0.98 344In Stock 500Expected 2026/12/08	Mfr. Part No. GR103E1K Mouser Part No 576-GR103E1K	Littelfuse	NTC (Negative Temperature Coefficient) Thermistors NTC THRM GLASS BEAD 3435 10K 10% Learn More about Littelfuse gr chip thermistors	Datasheet	344In Stock 500Expected 2026/12/08	$0.98 $0.927 $0.773 $0.727 View $0.709 $0.595 $0.565 $0.526	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 10K O HM 10% GLASS BEAD GS103J1K Littelfuse 1: $1.38 488In Stock	Mfr. Part No. GS103J1K Mouser Part No 576-GS103J1K	Littelfuse	NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 10K O HM 10% GLASS BEAD Learn More about Littelfuse renewable energy	Datasheet	488In Stock	$1.38 $1.33 $1.24 $1.17 View $1.02 $0.985 $0.909	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors NTC THRM GLASS BEAD 3977 100K 10% GS104J1K Littelfuse 1: $1.38 454In Stock	Mfr. Part No. GS104J1K Mouser Part No 576-GS104J1K	Littelfuse	NTC (Negative Temperature Coefficient) Thermistors NTC THRM GLASS BEAD 3977 100K 10% Learn More about Littelfuse renewable energy	Datasheet	454In Stock	$1.38 $1.33 $1.24 $1.17 View $1.13 $1.02 $0.985 $0.909	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors THERMISTOR, US SENSO R GT103E1K Littelfuse 1: $1.54 93In Stock	Mfr. Part No. GT103E1K Mouser Part No 576-GT103E1K	Littelfuse	NTC (Negative Temperature Coefficient) Thermistors THERMISTOR, US SENSO R Learn More about Littelfuse renewable energy	Datasheet	93In Stock	$1.54 $1.47 $1.38 $1.33 View $1.27 $1.15 $1.11 $1.02	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors THERMISTOR, US SENSO R GT103J1K Littelfuse 1: $2.47 491In Stock	Mfr. Part No. GT103J1K Mouser Part No 576-GT103J1K	Littelfuse	NTC (Negative Temperature Coefficient) Thermistors THERMISTOR, US SENSO R Learn More about Littelfuse renewable energy	Datasheet	491In Stock	$2.47 $2.35 $2.22 $2.13 View $2.05 $1.84 $1.79 $1.67	Min.: 1 Mult.: 1
Industrial & Electrical Fuses 60A 500VAC 500VDC FF L50QS POWR-SPEED L50QS060.T Littelfuse 1: $66.55 11In Stock 16Expected 2026/10/29	Mfr. Part No. L50QS060.T Mouser Part No 576-L50QS060.T	Littelfuse	Industrial & Electrical Fuses 60A 500VAC 500VDC FF L50QS POWR-SPEED Learn More about Littelfuse qs high speed fuses	Datasheet	11In Stock 16Expected 2026/10/29	$66.55 $60.72	Min.: 1 Mult.: 1
Industrial & Electrical Fuses 80A 500VAC 500VDC FF L50QS POWR-SPEED L50QS080.T Littelfuse 1: $70.58 11In Stock 12Expected 2026/10/22	Mfr. Part No. L50QS080.T Mouser Part No 576-L50QS080.T	Littelfuse	Industrial & Electrical Fuses 80A 500VAC 500VDC FF L50QS POWR-SPEED Learn More about Littelfuse qs high speed fuses	Datasheet	11In Stock 12Expected 2026/10/22	$70.58 $63.02	Min.: 1 Mult.: 1
Industrial & Electrical Fuses 400A 500VAC 500VDC FF L50QS POWR-SPEED L50QS400.V Littelfuse 1: $145.57 6In Stock 32Expected 2026/10/29	Mfr. Part No. L50QS400.V Mouser Part No 576-L50QS400.V	Littelfuse	Industrial & Electrical Fuses 400A 500VAC 500VDC FF L50QS POWR-SPEED Learn More about Littelfuse qs high speed fuses	Datasheet	6In Stock 32Expected 2026/10/29	$145.57 $124.87 $124.63 $120.48	Min.: 1 Mult.: 1
Industrial & Electrical Fuses 450A 500VAC 500VDC FF L50QS POWR-SPEED L50QS450.X Littelfuse 1: $237.75 4In Stock	Mfr. Part No. L50QS450.X Mouser Part No 576-L50QS450.X	Littelfuse	Industrial & Electrical Fuses 450A 500VAC 500VDC FF L50QS POWR-SPEED Learn More about Littelfuse qs high speed fuses	Datasheet	4In Stock	$237.75 $197.08 $181.68 $150.11	Min.: 1 Mult.: 1
Industrial & Electrical Fuses 60A 500VAC 450VDC FF L50S POWR-SPEED L50S060.T Littelfuse 1: $70.28 11In Stock	Mfr. Part No. L50S060.T Mouser Part No 576-L50S060.T	Littelfuse	Industrial & Electrical Fuses 60A 500VAC 450VDC FF L50S POWR-SPEED Learn More about Littelfuse fast acting high speed fuses	Datasheet	11In Stock	$70.28 $60.00 $56.50 $44.51 $40.98	Min.: 1 Mult.: 1
Industrial & Electrical Fuses 50A 700VAC 700VDC FF L70QS POWR-SPEED L70QS050.V Littelfuse 1: $103.80 8In Stock	Mfr. Part No. L70QS050.V Mouser Part No 576-L70QS050.V	Littelfuse	Industrial & Electrical Fuses 50A 700VAC 700VDC FF L70QS POWR-SPEED Learn More about Littelfuse qs high speed fuses	Datasheet	8In Stock	$103.80 $89.00 $77.19 $65.69 $60.48	Min.: 1 Mult.: 1
Industrial & Electrical Fuses 70A 700VAC 700VDC FF L70QS POWR-SPEED L70QS070.V Littelfuse 1: $131.55 6In Stock 85Expected 2026/11/24	Mfr. Part No. L70QS070.V Mouser Part No 576-L70QS070.V	Littelfuse	Industrial & Electrical Fuses 70A 700VAC 700VDC FF L70QS POWR-SPEED Learn More about Littelfuse qs high speed fuses	Datasheet	6In Stock 85Expected 2026/11/24	$131.55 $109.10 $100.60 $86.43 View $79.61 Quote	Min.: 1 Mult.: 1
Industrial & Electrical Fuses 125A 700VAC 700VDC FF L70QS POWR-SPEED L70QS125.V Littelfuse 1: $185.41 6In Stock	Mfr. Part No. L70QS125.V Mouser Part No 576-L70QS125.V	Littelfuse	Industrial & Electrical Fuses 125A 700VAC 700VDC FF L70QS POWR-SPEED Learn More about Littelfuse qs high speed fuses	Datasheet	6In Stock	$185.41 $153.73 $141.73 $117.14	Min.: 1 Mult.: 1
Industrial & Electrical Fuses 250A 700VAC 700VDC FF L70QS POWR-SPEED L70QS250.X Littelfuse 1: $265.25 1In Stock	Mfr. Part No. L70QS250.X Mouser Part No 576-L70QS250.X	Littelfuse	Industrial & Electrical Fuses 250A 700VAC 700VDC FF L70QS POWR-SPEED Learn More about Littelfuse qs high speed fuses	Datasheet	1In Stock	$265.25 $234.20	Min.: 1 Mult.: 1
Industrial & Electrical Fuses 750V FAST BLOW 50A L75QS050.V Littelfuse 1: $106.37 14In Stock	Mfr. Part No. L75QS050.V Mouser Part No 576-L75QS050.V	Littelfuse	Industrial & Electrical Fuses 750V FAST BLOW 50A Learn More about Littelfuse hvac protection control solutions	Datasheet	14In Stock	$106.37 $88.86 $84.19 $67.29 View $66.79 Quote	Min.: 1 Mult.: 1
PTC (Positive Temperature Coefficient) Thermistors 1K OHM 2% DO-35 102PS1G Littelfuse 1: $2.17 1,006In Stock	Mfr. Part No. 102PS1G Mouser Part No 803-102PS1G	Littelfuse	PTC (Positive Temperature Coefficient) Thermistors 1K OHM 2% DO-35 Learn More about Littelfuse do 35 standard	Datasheet	1,006In Stock	$2.17 $2.08 $1.94 $1.87 View $1.83 $1.70 $1.57 $1.54 $1.47	Min.: 1 Mult.: 1
PTC (Positive Temperature Coefficient) Thermistors 1kOhm 5% 102PS1J Littelfuse 1: $1.64 1,038In Stock	Mfr. Part No. 102PS1J Mouser Part No 803-102PS1J	Littelfuse	PTC (Positive Temperature Coefficient) Thermistors 1kOhm 5% Learn More about Littelfuse do 35 standard	Datasheet	1,038In Stock	$1.64 $1.56 $1.47 $1.40 View $1.38 $1.26 $1.19 $1.12 $1.04	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors 10K OHM .5% DEG C DO-35 103JL1A Littelfuse 1: $1.21 545In Stock	Mfr. Part No. 103JL1A Mouser Part No 803-103JL1A	Littelfuse	NTC (Negative Temperature Coefficient) Thermistors 10K OHM .5% DEG C DO-35 Learn More about Littelfuse jl do 35	Datasheet	545In Stock	$1.21 $1.15 $0.987 $0.887 View $0.861 $0.816 $0.761 $0.70 $0.657	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors 10K OHM 1% DO-35 103JM1A Littelfuse 1: $0.87 1,018In Stock	Mfr. Part No. 103JM1A Mouser Part No 803-103JM1A	Littelfuse	NTC (Negative Temperature Coefficient) Thermistors 10K OHM 1% DO-35 Learn More about Littelfuse do 35 standard	Datasheet	1,018In Stock	$0.87 $0.818 $0.766 $0.732 View $0.699 $0.633 $0.599 $0.561	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors 100K 0.5 DEG C DO-35 104JL1A Littelfuse 1: $1.48 604In Stock	Mfr. Part No. 104JL1A Mouser Part No 803-104JL1A	Littelfuse	NTC (Negative Temperature Coefficient) Thermistors 100K 0.5 DEG C DO-35 Learn More about Littelfuse jl do 35	Datasheet	604In Stock	$1.48 $1.41 $1.33 $1.26 View $1.14 $1.06 $0.982	Min.: 1 Mult.: 1

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