Circuit Protection – Mouser Japan

.hide-partial { max-height: none; } .show-more { display: none; }

Smart Thermostat Solutions

Littelfuse Smart Thermostat Solutions components allow designers to implement Internet of Things (IoT) solutions to boost energy efficiency and monitor energy usage. Littelfuse Smart Thermostat solutions complement other Smart Building features, including safety and security systems.

.catnav-wrapper { height: auto; overflow: visible; } .catalog-nav-tabs ul { white-space: normal; }

Types of Circuit Protection

List Images

Results: 540

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

.search-refine-wrapper { display: inline-block; min-width: 100%; } .scroll-body { overflow-x: visible; } .search-table-wrapper { overflow: visible; } .hide-partial { max-height: none; } .show-more { display: none; }

Part #

Surface Mount Fuses 2A Slo-Blo

0468002.NR
Littelfuse
1: ¥204.3
35,603In Stock
30,000Expected 9/28/2026

Mfr. Part #
0468002.NR

Mouser Part #
576-0468002.NR

Littelfuse

Surface Mount Fuses 2A Slo-Blo

Datasheet

35,603In Stock

30,000Expected 9/28/2026

Cut Tape

¥204.3

¥181

¥153.5

¥125.7

View

Reel

¥106.5

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

ESD Protection Diodes / TVS Diodes TVS ARRAY

SP3213-01UTG
Littelfuse
1: ¥117.9
100,580In Stock

Mfr. Part #
SP3213-01UTG

Mouser Part #
576-SP3213-01UTG

Littelfuse

ESD Protection Diodes / TVS Diodes TVS ARRAY

Learn More

Datasheet

100,580In Stock

Cut Tape

¥117.9

¥73.7

¥48.7

¥37.9

View

Reel

¥26.2

MouseReel Available

Min.: 1
Mult.: 1

: 15,000

Varistors 33V 180A 500pF

V33MLA1206NH
Littelfuse
1: ¥212.6
40,509In Stock

Mfr. Part #
V33MLA1206NH

Mouser Part #
576-V33MLA1206NH

Littelfuse

Varistors 33V 180A 500pF

Learn More

Datasheet

40,509In Stock

Cut Tape

¥212.6

¥154.1

¥139.5

¥123.4

View

Reel

¥98.8

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

ESD Protection Diodes / TVS Diodes 0.25pFA 14V 0402 AEC-Q200

PESD0402-140
Littelfuse
1: ¥63.1
685,013In Stock
400,000Expected 9/28/2026

Mfr. Part #
PESD0402-140

Mouser Part #
650-PESD0402-140

Littelfuse

ESD Protection Diodes / TVS Diodes 0.25pFA 14V 0402 AEC-Q200

Learn More

Datasheet

685,013In Stock

400,000Expected 9/28/2026

Cut Tape

¥63.1

¥39.2

¥31.2

¥29.7

View

Reel

¥21.8

MouseReel Available

Min.: 1
Mult.: 1

: 10,000

ESD Protection Diodes / TVS Diodes 1-CH 0201 9V Bi-Di .10pF 20kV SESD

SESD0201X1BN-0010-098
Littelfuse
1: ¥164.4
72,822In Stock

Mfr. Part #
SESD0201X1BN-0010-098

Mouser Part #
650-SESD0201X1BN0010

Littelfuse

ESD Protection Diodes / TVS Diodes 1-CH 0201 9V Bi-Di .10pF 20kV SESD

Learn More

Datasheet

72,822In Stock

Cut Tape

¥164.4

¥104.1

¥72.1

¥55.6

View

Reel

¥34.4

MouseReel Available

Min.: 1
Mult.: 1

: 75,000

ESD Protection Diodes / TVS Diodes 1-CH 0402 9V Bi-Di .10pF 20kV SESD

SESD0402X1BN-0010-098
Littelfuse
1: ¥119.6
99,475In Stock
100,000Expected 10/26/2026

Mfr. Part #
SESD0402X1BN-0010-098

Mouser Part #
650-SESD0402X1BN0010

Littelfuse

ESD Protection Diodes / TVS Diodes 1-CH 0402 9V Bi-Di .10pF 20kV SESD

Learn More

Datasheet

99,475In Stock

100,000Expected 10/26/2026

Cut Tape

¥119.6

¥92.5

¥68.1

¥54.6

View

Reel

¥32.1

MouseReel Available

Min.: 1
Mult.: 1

: 50,000

ESD Protection Diodes / TVS Diodes 1-CH 0402 9V Uni-Di .20pF 20kV SESD

SESD0402X1UN-0020-090
Littelfuse
1: ¥136.2
257,709In Stock

Mfr. Part #
SESD0402X1UN-0020-090

Mouser Part #
650-SESD0402X1UN0020

Littelfuse

ESD Protection Diodes / TVS Diodes 1-CH 0402 9V Uni-Di .20pF 20kV SESD

Learn More

Datasheet

257,709In Stock

Cut Tape

¥136.2

¥86.4

¥54.8

¥46

View

Reel

¥27.6

MouseReel Available

Min.: 1
Mult.: 1

: 50,000

ESD Protection Diodes / TVS Diodes 4-CH STD 9V Uni-Di .20pF 20kV SESD

SESD1004Q4UG-0020-090
Littelfuse
1: ¥206
37,147In Stock

Mfr. Part #
SESD1004Q4UG-0020-090

Mouser Part #
650-SESD1004Q4UG0020

Littelfuse

ESD Protection Diodes / TVS Diodes 4-CH STD 9V Uni-Di .20pF 20kV SESD

Learn More

Datasheet

37,147In Stock

Cut Tape

¥206

¥145.7

¥107.5

¥88

View

Reel

¥64.1

MouseReel Available

Min.: 1
Mult.: 1

: 25,000

Resettable Fuses - PPTC PTC 72V POLYFUSE SURF MOUNT 2920 0.35A

2920L035DR
Littelfuse
1: ¥117.9
1,831In Stock

Mfr. Part #
2920L035DR

Mouser Part #
576-2920L035DR

Littelfuse

Resettable Fuses - PPTC PTC 72V POLYFUSE SURF MOUNT 2920 0.35A

Learn More

Datasheet

1,831In Stock

Cut Tape

¥117.9

¥107.5

¥89.4

¥82.4

Reel

¥61.6

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,500

Surface Mount Fuses 125V .250A FA 1206

0437.250WR
Littelfuse
1: ¥229.2
10,999In Stock
30,000On Order

Mfr. Part #
0437.250WR

Mouser Part #
576-0437.250WR

Littelfuse

Surface Mount Fuses 125V .250A FA 1206

Learn More

Datasheet

10,999In Stock

30,000On Order

Cut Tape

¥229.2

¥204.3

¥187.7

¥145.5

View

Reel

¥83.4

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Surface Mount Fuses FUSE 125V FA 1206 .250A AECQ

0437.250WRA
Littelfuse
1: ¥269.1
3,517In Stock
3,000Expected 1/19/2027

Mfr. Part #
0437.250WRA

Mouser Part #
576-0437.250WRA

Littelfuse

Surface Mount Fuses FUSE 125V FA 1206 .250A AECQ

Datasheet

3,517In Stock

3,000Expected 1/19/2027

Cut Tape

¥269.1

¥224.2

¥206

¥171.1

View

Reel

¥116.6

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Surface Mount Fuses 125V .375A FA 1206

0437.375WR
Littelfuse
1: ¥217.6
3,788In Stock
6,000Expected 9/7/2026

Mfr. Part #
0437.375WR

Mouser Part #
576-0437.375WR

Littelfuse

Surface Mount Fuses 125V .375A FA 1206

Learn More

Datasheet

3,788In Stock

6,000Expected 9/7/2026

Cut Tape

¥217.6

¥194.3

¥182.7

¥149.8

View

Reel

¥83.4

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Surface Mount Fuses .375A 125V AECQ

0437.375WRA
Littelfuse
1: ¥270.7
15,855In Stock

Mfr. Part #
0437.375WRA

Mouser Part #
576-0437.375WRA

Littelfuse

Surface Mount Fuses .375A 125V AECQ

Datasheet

15,855In Stock

Cut Tape

¥270.7

¥239.2

¥227.6

¥184.4

View

Reel

¥109.3

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Surface Mount Fuses 63V .500A FA 1206

0437.500WR
Littelfuse
1: ¥222.6
5,844In Stock
6,000Expected 10/12/2026

Mfr. Part #
0437.500WR

Mouser Part #
576-0437.500WR

Littelfuse

Surface Mount Fuses 63V .500A FA 1206

Learn More

Datasheet

5,844In Stock

6,000Expected 10/12/2026

Cut Tape

¥222.6

¥202.6

¥179.4

¥149.8

View

Reel

¥83.4

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Surface Mount Fuses 63V .750A FA 1206

0437.750WR
Littelfuse
1: ¥265.8
3,639In Stock

Mfr. Part #
0437.750WR

Mouser Part #
576-0437.750WR

Littelfuse

Surface Mount Fuses 63V .750A FA 1206

Learn More

Datasheet

3,639In Stock

Cut Tape

¥265.8

¥235.9

¥224.2

¥176.1

View

Reel

¥104.3

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Surface Mount Fuses 63V FA 1206 1A

0437001.WR
Littelfuse
1: ¥282.4
5,085In Stock
30,000On Order

Mfr. Part #
0437001.WR

Mouser Part #
576-0437001.WR

Littelfuse

Surface Mount Fuses 63V FA 1206 1A

Learn More

Datasheet

5,085In Stock

30,000On Order

Cut Tape

¥282.4

¥249.2

¥224.2

¥186

View

Reel

¥104.3

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Surface Mount Fuses 63V FA 1206 2A

0437002.WR
Littelfuse
1: ¥214.3
12,422In Stock

Mfr. Part #
0437002.WR

Mouser Part #
576-0437002.WR

Littelfuse

Surface Mount Fuses 63V FA 1206 2A

Learn More

Datasheet

12,422In Stock

Cut Tape

¥214.3

¥189.4

¥159.8

¥128.1

View

Reel

¥101.7

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Surface Mount Fuses 32V FA 1206 3A

0437003.WR
Littelfuse
1: ¥280.7
4,071In Stock
3,000Expected 12/28/2026

Mfr. Part #
0437003.WR

Mouser Part #
576-0437003.WR

Littelfuse

Surface Mount Fuses 32V FA 1206 3A

Learn More

Datasheet

4,071In Stock

3,000Expected 12/28/2026

Cut Tape

¥280.7

¥249.2

¥225.9

¥187.7

View

Reel

¥104.3

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Surface Mount Fuses 32V FA 1206 7A

0437007.WR
Littelfuse
1: ¥292.3
3,026In Stock

Mfr. Part #
0437007.WR

Mouser Part #
576-0437007.WR

Littelfuse

Surface Mount Fuses 32V FA 1206 7A

Learn More

Datasheet

3,026In Stock

Cut Tape

¥292.3

¥249.2

¥230.9

¥191

View

Reel

¥104.3

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Surface Mount Fuses 63V FA 1206 1.5A

043701.5WR
Littelfuse
1: ¥259.1
2,579In Stock

Mfr. Part #
043701.5WR

Mouser Part #
576-043701.5WR

Littelfuse

Surface Mount Fuses 63V FA 1206 1.5A

Learn More

Datasheet

2,579In Stock

Cut Tape

¥259.1

¥229.2

¥217.6

¥176.1

View

Reel

¥104.3

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Surface Mount Fuses 32V FA 1206 2.5A

043702.5WR
Littelfuse
1: ¥259.1
4,113In Stock

Mfr. Part #
043702.5WR

Mouser Part #
576-043702.5WR

Littelfuse

Surface Mount Fuses 32V FA 1206 2.5A

Learn More

Datasheet

4,113In Stock

Cut Tape

¥259.1

¥229.2

¥217.6

¥176.1

View

Reel

¥104.1

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Surface Mount Fuses 63V .5A Slo-Blo

0468.500NR
Littelfuse
1: ¥204.3
23,862In Stock

Mfr. Part #
0468.500NR

Mouser Part #
576-0468.500NR

Littelfuse

Surface Mount Fuses 63V .5A Slo-Blo

Datasheet

23,862In Stock

Cut Tape

¥204.3

¥181

¥154.5

¥125.9

View

Reel

¥104.3

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

Surface Mount Fuses 1206 SLO-BLO .500A SLIMLINE HALIDE FREE

0468.500NRHF
Littelfuse
1: ¥259.1
11,184In Stock

Mfr. Part #
0468.500NRHF

Mouser Part #
576-0468.500NRHF

Littelfuse

Surface Mount Fuses 1206 SLO-BLO .500A SLIMLINE HALIDE FREE

Datasheet

11,184In Stock

Cut Tape

¥259.1

¥229.2

¥217.6

¥176.1

View

Reel

¥104.3

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

Surface Mount Fuses 1206 SLO-BLO 2A SLIMLINE HALIDE FREE

0468002.NRHF
Littelfuse
1: ¥259.1
14,885In Stock

Mfr. Part #
0468002.NRHF

Mouser Part #
576-0468002.NRHF

Littelfuse

Surface Mount Fuses 1206 SLO-BLO 2A SLIMLINE HALIDE FREE

Datasheet

14,885In Stock

Cut Tape

¥259.1

¥229.2

¥217.6

¥176.1

View

Reel

¥104.3

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

Surface Mount Fuses 3A Slo-Blo

0468003.NR
Littelfuse
1: ¥202.6
25,042In Stock
25,000Expected 9/28/2026

Mfr. Part #
0468003.NR

Mouser Part #
576-0468003.NR

Littelfuse

Surface Mount Fuses 3A Slo-Blo

Datasheet

25,042In Stock

25,000Expected 9/28/2026

Cut Tape

¥202.6

¥179.4

¥153.3

¥125.7

View

Reel

¥101.7

MouseReel Available

Min.: 1
Mult.: 1

: 5,000