Circuit Protection – Mouser Japan

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

Connected Drug Delivery Device Ecosystem Solutions

Littelfuse features a wide portfolio of products used to build and enhance drug delivery systems. These drug delivery systems include auto-injectors, continuous glucose monitors, insulin pumps, drug delivery pens, and wearable injectors. Products offered by Littelfuse for these applications include detect switches, plunger position sensors, microcontrollers, thermistors, TVS diode arrays, gate drivers, and fuses.

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

Types of Circuit Protection

List Images

Results: 190

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 #

ESD Protection Diodes / TVS Diodes 400W 6V 5% Uni-Directional

SMAJ6.0A
Littelfuse
1: ¥59.8
60,568In Stock

Mfr. Part #
SMAJ6.0A

Mouser Part #
576-SMAJ6.0A

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 6V 5% Uni-Directional

Learn More

Datasheet

60,568In Stock

Cut Tape

¥59.8

¥34.5

¥26.6

¥21.6

Reel

¥13

View

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

ESD Protection Diodes / TVS Diodes 400W 60V 5% Bi-Directional

SMAJ60CA
Littelfuse
1: ¥78.1
17,702In Stock
65,000On Order

Mfr. Part #
SMAJ60CA

Mouser Part #
576-SMAJ60CA

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 60V 5% Bi-Directional

Learn More

Datasheet

17,702In Stock

65,000On Order

Cut Tape

¥78.1

¥37.5

¥31.4

¥24.4

View

Reel

¥14.1

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

ESD Protection Diodes / TVS Diodes 400W 64V 5% Uni-Directional

SMAJ64A
Littelfuse
1: ¥78.1
34,295In Stock

Mfr. Part #
SMAJ64A

Mouser Part #
576-SMAJ64A

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 64V 5% Uni-Directional

Learn More

Datasheet

34,295In Stock

Cut Tape

¥78.1

¥35.4

¥29.9

¥23.1

View

Reel

¥12.5

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

Resettable Fuses - PPTC 6V POLYFUSE 0603 LoRho SL 0.75A

0603L075SLYR
Littelfuse
1: ¥312.3
343In Stock
8,000Expected 8/13/2026

Mfr. Part #
0603L075SLYR

Mouser Part #
576-0603L075SLYR

Littelfuse

Resettable Fuses - PPTC 6V POLYFUSE 0603 LoRho SL 0.75A

Learn More

Datasheet

343In Stock

8,000Expected 8/13/2026

Cut Tape

¥312.3

¥277.4

¥237.5

¥215.9

View

Reel

¥152.3

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Resettable Fuses - PPTC 6V 3.5A-HD 50A SMD

0805L350SLYR
Littelfuse
1: ¥418.6
671In Stock

Mfr. Part #
0805L350SLYR

Mouser Part #
576-0805L350SLYR

Littelfuse

Resettable Fuses - PPTC 6V 3.5A-HD 50A SMD

Learn More

Datasheet

671In Stock

Cut Tape

¥418.6

¥345.5

¥318.9

¥265.8

View

Reel

¥186

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Resettable Fuses - PPTC 6V 4.0A-HD 50A SMD

0805L400SLWR
Littelfuse
1: ¥426.9
1,277In Stock

Mfr. Part #
0805L400SLWR

Mouser Part #
576-0805L400SLWR

Littelfuse

Resettable Fuses - PPTC 6V 4.0A-HD 50A SMD

Learn More

Datasheet

1,277In Stock

Cut Tape

¥426.9

¥353.8

¥327.2

¥325.6

View

Reel

¥194.3

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Resettable Fuses - PPTC 12V POLYFUSE 1206 LoRho SL 1.1A

1206L110/12SLYR
Littelfuse
1: ¥516.6
463In Stock
4,000Expected 1/11/2027

Mfr. Part #
1206L110/12SLYR

Mouser Part #
576-1206L110/12SLYR

Littelfuse

Resettable Fuses - PPTC 12V POLYFUSE 1206 LoRho SL 1.1A

Learn More

Datasheet

463In Stock

4,000Expected 1/11/2027

Cut Tape

¥516.6

¥458.4

¥416.9

¥345.5

View

Reel

¥250.8

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Resettable Fuses - PPTC 6V POLYFUSE 1206 LoRho SL 1.75A

1206L175SLYR
Littelfuse
1: ¥312.3
234In Stock
12,000Expected 8/13/2026

Mfr. Part #
1206L175SLYR

Mouser Part #
576-1206L175SLYR

Littelfuse

Resettable Fuses - PPTC 6V POLYFUSE 1206 LoRho SL 1.75A

Learn More

Datasheet

234In Stock

12,000Expected 8/13/2026

Cut Tape

¥312.3

¥294

¥244.2

¥224.2

View

Reel

¥152.3

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Resettable Fuses - PPTC 6V POLYFUSE 1206 LoRho SL 3.80A

1206L380SLTHYR
Littelfuse
1: ¥312.3
1,557In Stock

Mfr. Part #
1206L380SLTHYR

Mouser Part #
576-1206L380SLTHYR

Littelfuse

Resettable Fuses - PPTC 6V POLYFUSE 1206 LoRho SL 3.80A

Learn More

Datasheet

1,557In Stock

Cut Tape

¥312.3

¥255.8

¥215.9

¥197.7

View

Reel

¥152.3

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Resettable Fuses - PPTC 6V POLYFUSE 1210 LoRho SL 2A

1210L200SLYR
Littelfuse
1: ¥406.9
66In Stock

Mfr. Part #
1210L200SLYR

Mouser Part #
576-1210L200SLYR

Littelfuse

Resettable Fuses - PPTC 6V POLYFUSE 1210 LoRho SL 2A

Learn More

Datasheet

66In Stock

Cut Tape

¥406.9

¥358.8

¥308.9

¥259.1

View

Reel

¥187.7

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Resettable Fuses - PPTC 6V POLYFUSE 1210 LoRho SL 4.50A

1210L450SLWR
Littelfuse
1: ¥430.2
87In Stock
6,000Expected 9/24/2026

Mfr. Part #
1210L450SLWR

Mouser Part #
576-1210L450SLWR

Littelfuse

Resettable Fuses - PPTC 6V POLYFUSE 1210 LoRho SL 4.50A

Learn More

Datasheet

87In Stock

6,000Expected 9/24/2026

Cut Tape

¥430.2

¥357.1

¥332.2

¥328.9

View

Reel

¥196

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 400W 100V 5% Uni-Directional

SMAJ100A
Littelfuse
1: ¥84.7
2,601In Stock
20,000On Order

Mfr. Part #
SMAJ100A

Mouser Part #
576-SMAJ100A

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 100V 5% Uni-Directional

Learn More

Datasheet

2,601In Stock

20,000On Order

Cut Tape

¥84.7

¥43.7

¥32.4

¥24.9

Reel

¥18.1

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

ESD Protection Diodes / TVS Diodes 400W 100V 5% Bi-Directional

SMAJ100CA
Littelfuse
1: ¥83.1
10,680In Stock
15,000Expected 1/18/2027

Mfr. Part #
SMAJ100CA

Mouser Part #
576-SMAJ100CA

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 100V 5% Bi-Directional

Learn More

Datasheet

10,680In Stock

15,000Expected 1/18/2027

Cut Tape

¥83.1

¥37

¥32.4

¥24.3

View

Reel

¥14.1

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

ESD Protection Diodes / TVS Diodes 400W 10V 5% Uni-Directional

SMAJ10A
Littelfuse
1: ¥74.7
7,979In Stock
10,000Expected 2/15/2027

Mfr. Part #
SMAJ10A

Mouser Part #
576-SMAJ10A

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 10V 5% Uni-Directional

Learn More

Datasheet

7,979In Stock

10,000Expected 2/15/2027

Cut Tape

¥74.7

¥35.4

¥29.1

¥22.4

Reel

¥13.5

View

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

ESD Protection Diodes / TVS Diodes 400W 10V 5% Bi-Directional

SMAJ10CA
Littelfuse
1: ¥79.7
1,296In Stock
25,000On Order

Mfr. Part #
SMAJ10CA

Mouser Part #
576-SMAJ10CA

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 10V 5% Bi-Directional

Learn More

Datasheet

1,296In Stock

25,000On Order

Cut Tape

¥79.7

¥42.4

¥31.9

¥24.6

View

Reel

¥14.1

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

ESD Protection Diodes / TVS Diodes 400W 110V 5% Uni-Directional

SMAJ110A
Littelfuse
1: ¥83.1
3,780In Stock
10,000Expected 1/19/2027

Mfr. Part #
SMAJ110A

Mouser Part #
576-SMAJ110A

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 110V 5% Uni-Directional

Learn More

Datasheet

3,780In Stock

10,000Expected 1/19/2027

Cut Tape

¥83.1

¥51.2

¥32.4

¥24.3

Reel

¥16.9

View

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

ESD Protection Diodes / TVS Diodes 400W 110V 5% Bi-Directional

SMAJ110CA
Littelfuse
1: ¥83.1
1,124In Stock
5,000Expected 8/25/2026

Mfr. Part #
SMAJ110CA

Mouser Part #
576-SMAJ110CA

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 110V 5% Bi-Directional

Learn More

Datasheet

1,124In Stock

5,000Expected 8/25/2026

Cut Tape

¥83.1

¥51.2

¥32.4

¥24.3

View

Reel

¥14.1

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

ESD Protection Diodes / TVS Diodes 400W 11V 5% Bi-Directional

SMAJ11CA
Littelfuse
1: ¥79.7
3,162In Stock
5,000Expected 12/2/2026

Mfr. Part #
SMAJ11CA

Mouser Part #
576-SMAJ11CA

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 11V 5% Bi-Directional

Learn More

Datasheet

3,162In Stock

5,000Expected 12/2/2026

Cut Tape

¥79.7

¥35.4

¥31.1

¥23.3

View

Reel

¥14.1

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

ESD Protection Diodes / TVS Diodes 400W 120V 5% Uni-Directional

SMAJ120A
Littelfuse
1: ¥73.1
7,398In Stock

Mfr. Part #
SMAJ120A

Mouser Part #
576-SMAJ120A

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 120V 5% Uni-Directional

Learn More

Datasheet

7,398In Stock

Cut Tape

¥73.1

¥37

¥29.2

¥22.9

View

Reel

¥14.1

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

ESD Protection Diodes / TVS Diodes 400W 120V 5% Bi-Directional

SMAJ120CA
Littelfuse
1: ¥76.4
6,495In Stock

Mfr. Part #
SMAJ120CA

Mouser Part #
576-SMAJ120CA

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 120V 5% Bi-Directional

Learn More

Datasheet

6,495In Stock

Cut Tape

¥76.4

¥37

¥31.2

¥25.4

Reel

¥17.9

View

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

ESD Protection Diodes / TVS Diodes 400W 130V 5% Uni-Directional

SMAJ130A
Littelfuse
1: ¥81.4
6,187In Stock

Mfr. Part #
SMAJ130A

Mouser Part #
576-SMAJ130A

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 130V 5% Uni-Directional

Learn More

Datasheet

6,187In Stock

Cut Tape

¥81.4

¥37

¥31.9

¥24.3

Reel

¥16.9

View

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

ESD Protection Diodes / TVS Diodes 400W 130V 5% Bi-Directional

SMAJ130CA
Littelfuse
1: ¥83.1
4,882In Stock

Mfr. Part #
SMAJ130CA

Mouser Part #
576-SMAJ130CA

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 130V 5% Bi-Directional

Learn More

Datasheet

4,882In Stock

Cut Tape

¥83.1

¥51.2

¥32.4

¥24.3

Reel

¥14.9

View

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

ESD Protection Diodes / TVS Diodes 400W 13V 5% Uni-Directional

SMAJ13A
Littelfuse
1: ¥69.8
5,785In Stock
10,000Expected 2/1/2027

Mfr. Part #
SMAJ13A

Mouser Part #
576-SMAJ13A

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 13V 5% Uni-Directional

Learn More

Datasheet

5,785In Stock

10,000Expected 2/1/2027

Cut Tape

¥69.8

¥35.4

¥28.6

¥22.3

Reel

¥13.6

View

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

ESD Protection Diodes / TVS Diodes 400W 13V 5% Bi-Directional

SMAJ13CA
Littelfuse
1: ¥79.7
10,715In Stock
20,000Expected 8/20/2026

Mfr. Part #
SMAJ13CA

Mouser Part #
576-SMAJ13CA

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 13V 5% Bi-Directional

Learn More

Datasheet

10,715In Stock

20,000Expected 8/20/2026

Cut Tape

¥79.7

¥35.4

¥30.6

¥23.3

View

Reel

¥14.1

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

ESD Protection Diodes / TVS Diodes 400W 14V 5% Bi-Directional

SMAJ14CA
Littelfuse
1: ¥84.7
9,622In Stock
5,000Expected 8/17/2026

Mfr. Part #
SMAJ14CA

Mouser Part #
576-SMAJ14CA

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 14V 5% Bi-Directional

Learn More

Datasheet

9,622In Stock

5,000Expected 8/17/2026

Cut Tape

¥84.7

¥37.5

¥32.4

¥24.6

Reel

¥14.3

View

MouseReel Available

Min.: 1
Mult.: 1

: 5,000