Circuit Protection – Mouser Japan

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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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Types of Circuit Protection

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Results: 336

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RoHS Compliant

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Part #

NTC Thermistors THERMISTOR, US SENSO R

GT103J1K
Littelfuse
1: ¥410.3
491In Stock

Mfr. Part #
GT103J1K

Mouser Part #
576-GT103J1K

Littelfuse

NTC Thermistors THERMISTOR, US SENSO R

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Datasheet

491In Stock

¥410.3

¥390.3

¥368.7

¥353.8

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Min.: 1
Mult.: 1

Industrial & Electrical Fuses 60A 500VAC 500VDC FF L50QS POWR-SPEED

L50QS060.T
Littelfuse
1: ¥10,650.3
2In Stock
27On Order

Mfr. Part #
L50QS060.T

Mouser Part #
576-L50QS060.T

Littelfuse

Industrial & Electrical Fuses 60A 500VAC 500VDC FF L50QS POWR-SPEED

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Datasheet

2In Stock

27On Order

¥10,650.3

¥9,007.6

¥7,831.6

¥6,745.3

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Min.: 1
Mult.: 1

Industrial & Electrical Fuses 80A 500VAC 500VDC FF L50QS POWR-SPEED

L50QS080.T
Littelfuse
1: ¥11,721.7
11In Stock
12Expected 10/5/2026

Mfr. Part #
L50QS080.T

Mouser Part #
576-L50QS080.T

Littelfuse

Industrial & Electrical Fuses 80A 500VAC 500VDC FF L50QS POWR-SPEED

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Datasheet

11In Stock

12Expected 10/5/2026

¥11,721.7

¥10,424.4

¥9,650.4

¥7,421.3

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Min.: 1
Mult.: 1

Industrial & Electrical Fuses 100A 500VAC 500VDC FF L50QS POWR-SPEED

L50QS100.T
Littelfuse
1: ¥9,323.2
8In Stock
190On Order

Mfr. Part #
L50QS100.T

Mouser Part #
576-L50QS100.T

Littelfuse

Industrial & Electrical Fuses 100A 500VAC 500VDC FF L50QS POWR-SPEED

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Datasheet

8In Stock

190On Order

¥9,323.2

¥8,248.5

¥7,755.2

¥6,831.7

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Min.: 1
Mult.: 1

Industrial & Electrical Fuses 125A 500VAC 500VDC FF L50QS POWR-SPEED

L50QS125.V
Littelfuse
1: ¥16,030.3
19In Stock

Mfr. Part #
L50QS125.V

Mouser Part #
576-L50QS125.V

Littelfuse

Industrial & Electrical Fuses 125A 500VAC 500VDC FF L50QS POWR-SPEED

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Datasheet

19In Stock

¥16,030.3

¥13,314.6

¥12,808

¥10,480.9

¥9,755.1

Min.: 1
Mult.: 1

Industrial & Electrical Fuses 400A 500VAC 500VDC FF L50QS POWR-SPEED

L50QS400.V
Littelfuse
1: ¥24,365.2
6In Stock
32Expected 10/19/2026

Mfr. Part #
L50QS400.V

Mouser Part #
576-L50QS400.V

Littelfuse

Industrial & Electrical Fuses 400A 500VAC 500VDC FF L50QS POWR-SPEED

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Datasheet

6In Stock

32Expected 10/19/2026

¥24,365.2

¥20,764.2

¥19,872.2

¥16,008.7

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Min.: 1
Mult.: 1

Industrial & Electrical Fuses 450A 500VAC 500VDC FF L50QS POWR-SPEED

L50QS450.X
Littelfuse
1: ¥39,483.6
4In Stock

Mfr. Part #
L50QS450.X

Mouser Part #
576-L50QS450.X

Littelfuse

Industrial & Electrical Fuses 450A 500VAC 500VDC FF L50QS POWR-SPEED

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Datasheet

4In Stock

¥39,483.6

¥32,728.3

¥30,172.1

¥24,928.3

Min.: 1
Mult.: 1

Industrial & Electrical Fuses 500A 500VAC 500VDC FF L50QS POWR-SPEED

L50QS500.X
Littelfuse
1: ¥36,752.9
8In Stock

Mfr. Part #
L50QS500.X

Mouser Part #
576-L50QS500.X

Littelfuse

Industrial & Electrical Fuses 500A 500VAC 500VDC FF L50QS POWR-SPEED

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Datasheet

8In Stock

¥36,752.9

¥31,371.3

¥28,506.1

¥24,876.8

Min.: 1
Mult.: 1

Industrial & Electrical Fuses 60A 500VAC 450VDC FF L50S POWR-SPEED

L50S060.T
Littelfuse
1: ¥11,671.8
11In Stock

Mfr. Part #
L50S060.T

Mouser Part #
576-L50S060.T

Littelfuse

Industrial & Electrical Fuses 60A 500VAC 450VDC FF L50S POWR-SPEED

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Datasheet

11In Stock

¥11,671.8

¥9,959.4

¥9,243.5

¥7,391.5

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Min.: 1
Mult.: 1

Industrial & Electrical Fuses 50A 700VAC 700VDC FF L70QS POWR-SPEED

L70QS050.V
Littelfuse
1: ¥17,239.5
9In Stock

Mfr. Part #
L70QS050.V

Mouser Part #
576-L70QS050.V

Littelfuse

Industrial & Electrical Fuses 50A 700VAC 700VDC FF L70QS POWR-SPEED

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Datasheet

9In Stock

¥17,239.5

¥14,885.9

¥13,185

¥10,907.8

¥10,042.4

Min.: 1
Mult.: 1

Industrial & Electrical Fuses 100A 700VAC 700VDC FF L70QS POWR-SPEED

L70QS100.V
Littelfuse
1: ¥21,845.5
2In Stock
22Expected 10/19/2026

Mfr. Part #
L70QS100.V

Mouser Part #
576-L70QS100.V

Littelfuse

Industrial & Electrical Fuses 100A 700VAC 700VDC FF L70QS POWR-SPEED

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Datasheet

2In Stock

22Expected 10/19/2026

¥21,845.5

¥18,692.9

¥17,269.4

¥13,814.5

¥12,716.6

Min.: 1
Mult.: 1

Industrial & Electrical Fuses 125A 700VAC 700VDC FF L70QS POWR-SPEED

L70QS125.V
Littelfuse
1: ¥30,790
6In Stock

Mfr. Part #
L70QS125.V

Mouser Part #
576-L70QS125.V

Littelfuse

Industrial & Electrical Fuses 125A 700VAC 700VDC FF L70QS POWR-SPEED

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Datasheet

6In Stock

¥30,790

¥25,527.9

¥23,538

¥19,453.6

Min.: 1
Mult.: 1

Industrial & Electrical Fuses 250A 700VAC 700VDC FF L70QS POWR-SPEED

L70QS250.X
Littelfuse
1: ¥44,049.7
1In Stock

Mfr. Part #
L70QS250.X

Mouser Part #
576-L70QS250.X

Littelfuse

Industrial & Electrical Fuses 250A 700VAC 700VDC FF L70QS POWR-SPEED

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Datasheet

1In Stock

¥44,049.7

¥36,513.8

¥34,497.3

¥28,497.8

Min.: 1
Mult.: 1

Industrial & Electrical Fuses 750V FAST BLOW 50A

L75QS050.V
Littelfuse
1: ¥17,664.7
14In Stock

Mfr. Part #
L75QS050.V

Mouser Part #
576-L75QS050.V

Littelfuse

Industrial & Electrical Fuses 750V FAST BLOW 50A

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Datasheet

14In Stock

¥17,664.7

¥14,756.3

¥14,025.5

¥11,175.2

¥10,289.9

Min.: 1
Mult.: 1

Industrial & Electrical Fuses 750V FAST BLOW 100A

L75QS100.V
Littelfuse
1: ¥22,672.7
4In Stock
105Expected 10/12/2026

Mfr. Part #
L75QS100.V

Mouser Part #
576-L75QS100.V

Littelfuse

Industrial & Electrical Fuses 750V FAST BLOW 100A

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Datasheet

4In Stock

105Expected 10/12/2026

¥22,672.7

¥18,799.2

¥17,337.5

¥14,337.8

¥13,196.6

Min.: 1
Mult.: 1

PTC Thermistors 1K OHM 2% DO-35

102PS1G
Littelfuse
1: ¥342.2
29In Stock
1,000Expected 8/17/2026

Mfr. Part #
102PS1G

Mouser Part #
803-102PS1G

Littelfuse

PTC Thermistors 1K OHM 2% DO-35

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Datasheet

29In Stock

1,000Expected 8/17/2026

¥342.2

¥325.6

¥307.3

¥292.3

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Min.: 1
Mult.: 1

PTC Thermistors 1kOhm 5%

102PS1J
Littelfuse
1: ¥255.8
5In Stock
1,500Expected 8/17/2026

Mfr. Part #
102PS1J

Mouser Part #
803-102PS1J

Littelfuse

PTC Thermistors 1kOhm 5%

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Datasheet

5In Stock

1,500Expected 8/17/2026

¥255.8

¥244.2

¥229.2

¥219.3

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Min.: 1
Mult.: 1

NTC Thermistors 10K OHM .5% DEG C DO-35

103JL1A
Littelfuse
1: ¥167.8
585In Stock

Mfr. Part #
103JL1A

Mouser Part #
803-103JL1A

Littelfuse

NTC Thermistors 10K OHM .5% DEG C DO-35

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Datasheet

585In Stock

¥167.8

¥158.8

¥149

¥142.2

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Min.: 1
Mult.: 1

NTC Thermistors 10K OHM 1% DO-35

103JM1A
Littelfuse
1: ¥144.5
1,148In Stock

Mfr. Part #
103JM1A

Mouser Part #
803-103JM1A

Littelfuse

NTC Thermistors 10K OHM 1% DO-35

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Datasheet

1,148In Stock

¥144.5

¥135.9

¥127.2

¥121.4

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Min.: 1
Mult.: 1

NTC Thermistors 100K 0.5 DEG C DO-35

104JL1A
Littelfuse
1: ¥245.8
854In Stock

Mfr. Part #
104JL1A

Mouser Part #
803-104JL1A

Littelfuse

NTC Thermistors 100K 0.5 DEG C DO-35

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Datasheet

854In Stock

¥245.8

¥234.2

¥219.3

¥209.3

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Min.: 1
Mult.: 1

PTC Thermistors 2K OHM 5% DO-35

202PS1J
Littelfuse
1: ¥749.1
212In Stock

Mfr. Part #
202PS1J

Mouser Part #
803-202PS1J

Littelfuse

PTC Thermistors 2K OHM 5% DO-35

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Datasheet

212In Stock

¥749.1

¥671

¥642.8

¥609.6

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Min.: 1
Mult.: 1

NTC Thermistors 20K OHM .5% DEG C DO-35

203JL1A
Littelfuse
1: ¥245.8
294In Stock

Mfr. Part #
203JL1A

Mouser Part #
803-203JL1A

Littelfuse

NTC Thermistors 20K OHM .5% DEG C DO-35

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Datasheet

294In Stock

¥245.8

¥234.2

¥219.3

¥209.3

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Min.: 1
Mult.: 1

NTC Thermistors THERMISTOR,U.S.SENSOR P/

302JH1K
Littelfuse
1: ¥104.6
589In Stock

Mfr. Part #
302JH1K

Mouser Part #
803-302JH1K

Littelfuse

NTC Thermistors THERMISTOR,U.S.SENSOR P/

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Datasheet

589In Stock

¥104.6

¥98.5

¥92.2

¥87.7

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Min.: 1
Mult.: 1

NTC Thermistors THERMISTOR, US SENSOR P/

501FH1K
Littelfuse
1: ¥127.9
68In Stock
500Expected 10/22/2026

Mfr. Part #
501FH1K

Mouser Part #
803-501FH1K

Littelfuse

NTC Thermistors THERMISTOR, US SENSOR P/

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Datasheet

68In Stock

500Expected 10/22/2026

¥127.9

¥120.9

¥110.3

¥106

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Min.: 1
Mult.: 1

NTC Thermistors 10K OHM 1% EPOXY COATED

AC103J2F
Littelfuse
1: ¥191
256In Stock

Mfr. Part #
AC103J2F

Mouser Part #
803-AC103J2F

Littelfuse

NTC Thermistors 10K OHM 1% EPOXY COATED

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Datasheet

256In Stock

¥191

¥171.1

¥152.3

¥146.5

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Min.: 1
Mult.: 1