Circuit Protection – Mouser Japan

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Portable Medical Devices & Connected Drug Delivery

Littelfuse Portable Medical Devices and Connected Drug Delivery Systems feature a range of products ideal for use in wearables, digital hearing aids, insulin pumps, blood pressure monitors, and connected pharmaceutical delivery devices such as auto-injectors and inhalers. Portable and connected devices are changing how medical services are delivered to patients. These connected healthcare products from Littelfuse help lower healthcare costs, improve efficiency, and empower patients.

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Types of Circuit Protection

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Results: 202

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New Products

RoHS Compliant

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Part #

ESD Protection Diodes / TVS Diodes 400W 28V 5% Bi-Directional

SMAJ28CA
Littelfuse
1: ¥79.7
27,012In Stock
35,000Expected 2/15/2027

Mfr. Part #
SMAJ28CA

Mouser Part #
576-SMAJ28CA

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 28V 5% Bi-Directional

Learn More

Datasheet

27,012In Stock

35,000Expected 2/15/2027

Cut Tape

¥79.7

¥35.4

¥30.2

¥23.3

View

Reel

¥14.1

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

ESD Protection Diodes / TVS Diodes 400W 300V 5% Bi-Directional

SMAJ300CA
Littelfuse
1: ¥144.5
12,657In Stock
40,000On Order

Mfr. Part #
SMAJ300CA

Mouser Part #
576-SMAJ300CA

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 300V 5% Bi-Directional

Learn More

Datasheet

12,657In Stock

40,000On Order

Cut Tape

¥144.5

¥68.8

¥51.3

¥42

View

Reel

¥29.9

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

ESD Protection Diodes / TVS Diodes 400W 30V 5% Bi-Directional

SMAJ30CA
Littelfuse
1: ¥66.4
91,245In Stock
155,000On Order

Mfr. Part #
SMAJ30CA

Mouser Part #
576-SMAJ30CA

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 30V 5% Bi-Directional

Learn More

Datasheet

91,245In Stock

155,000On Order

Cut Tape

¥66.4

¥35.4

¥31.1

¥23.3

¥21.1

Reel

¥14.1

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

ESD Protection Diodes / TVS Diodes 400W 33V 5% Uni-Directional

SMAJ33A
Littelfuse
1: ¥76.4
41,729In Stock
85,000Expected 11/5/2026

Mfr. Part #
SMAJ33A

Mouser Part #
576-SMAJ33A

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 33V 5% Uni-Directional

Learn More

Datasheet

41,729In Stock

85,000Expected 11/5/2026

Cut Tape

¥76.4

¥34.5

¥29.6

¥22.4

Reel

¥15.1

View

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

ESD Protection Diodes / TVS Diodes 400W 350V 5% Uni-Directional

SMAJ350A
Littelfuse
1: ¥146.2
8,400In Stock

Mfr. Part #
SMAJ350A

Mouser Part #
576-SMAJ350A

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 350V 5% Uni-Directional

Learn More

Datasheet

8,400In Stock

Cut Tape

¥146.2

¥73.1

¥60.8

¥45.8

View

Reel

¥32.4

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

ESD Protection Diodes / TVS Diodes 400W 36V 5% Uni-Directional

SMAJ36A
Littelfuse
1: ¥66.4
42,992In Stock
25,000Expected 12/3/2026

Mfr. Part #
SMAJ36A

Mouser Part #
576-SMAJ36A

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 36V 5% Uni-Directional

Learn More

Datasheet

42,992In Stock

25,000Expected 12/3/2026

Cut Tape

¥66.4

¥35.4

¥29.1

¥23.1

Reel

¥13.3

View

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

ESD Protection Diodes / TVS Diodes 400W 40V 5% Uni-Directional

SMAJ40A
Littelfuse
1: ¥63.1
41,338In Stock

Mfr. Part #
SMAJ40A

Mouser Part #
576-SMAJ40A

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 40V 5% Uni-Directional

Learn More

Datasheet

41,338In Stock

Cut Tape

¥63.1

¥34.5

¥29.1

¥22.4

Reel

¥13

View

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

ESD Protection Diodes / TVS Diodes 400W 40V 5% Bi-Directional

SMAJ40CA
Littelfuse
1: ¥84.7
74,988In Stock
120,000Expected 11/16/2026

Mfr. Part #
SMAJ40CA

Mouser Part #
576-SMAJ40CA

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 40V 5% Bi-Directional

Learn More

Datasheet

74,988In Stock

120,000Expected 11/16/2026

Cut Tape

¥84.7

¥37.5

¥32.4

¥24.6

View

Reel

¥14.1

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

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

SMAJ5.0CA
Littelfuse
1: ¥74.7
65,385In Stock
135,000On Order

Mfr. Part #
SMAJ5.0CA

Mouser Part #
576-SMAJ5.0CA

Littelfuse

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

Learn More

Datasheet

65,385In Stock

135,000On Order

Cut Tape

¥74.7

¥35.4

¥28.9

¥23.3

View

Reel

¥14.9

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

ESD Protection Diodes / TVS Diodes 400W 51V 5% Uni-Directional

SMAJ51A
Littelfuse
1: ¥76.4
27,322In Stock
35,000Expected 1/18/2027

Mfr. Part #
SMAJ51A

Mouser Part #
576-SMAJ51A

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 51V 5% Uni-Directional

Learn More

Datasheet

27,322In Stock

35,000Expected 1/18/2027

Cut Tape

¥76.4

¥34.5

¥29.6

¥22.4

Reel

¥13.1

View

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

ESD Protection Diodes / TVS Diodes 400W 58V 5% Bi-Directional

SMAJ58CA
Littelfuse
1: ¥79.7
102,621In Stock

Mfr. Part #
SMAJ58CA

Mouser Part #
576-SMAJ58CA

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 58V 5% Bi-Directional

Learn More

Datasheet

102,621In Stock

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 6V 5% Uni-Directional

SMAJ6.0A
Littelfuse
1: ¥59.8
58,938In Stock
35,000Expected 3/4/2027

Mfr. Part #
SMAJ6.0A

Mouser Part #
576-SMAJ6.0A

Littelfuse

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

Learn More

Datasheet

58,938In Stock

35,000Expected 3/4/2027

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
17,092In 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

17,092In 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

ESD Protection Diodes / TVS Diodes 1 Ch 22kV 9.2V .15pF SOD882

SP3522-01ETG
Littelfuse
1: ¥71.4
119,093In Stock

Mfr. Part #
SP3522-01ETG

Mouser Part #
576-SP3522-01ETG

Littelfuse

ESD Protection Diodes / TVS Diodes 1 Ch 22kV 9.2V .15pF SOD882

Learn More

Datasheet

119,093In Stock

Cut Tape

¥71.4

¥33.4

¥25.6

¥19.6

Reel

¥11.5

View

MouseReel Available

Min.: 1
Mult.: 1

: 10,000

ESD Protection Diodes / TVS Diodes 1 Ch 22kV 9.2V .15pF 0201 DFN

SP3522-01UTG
Littelfuse
1: ¥64.8
42,329In Stock

Mfr. Part #
SP3522-01UTG

Mouser Part #
576-SP3522-01UTG

Littelfuse

ESD Protection Diodes / TVS Diodes 1 Ch 22kV 9.2V .15pF 0201 DFN

Learn More

Datasheet

42,329In Stock

Cut Tape

¥64.8

¥28.7

¥24.7

¥18.6

View

Reel

¥9.3

MouseReel Available

Min.: 1
Mult.: 1

: 15,000

ESD Protection Diodes / TVS Diodes 15V 100W

SP15-01WTG-C-HV
Littelfuse
1: ¥61.5
6,460In Stock
10,000Expected 1/19/2027

Mfr. Part #
SP15-01WTG-C-HV

Mouser Part #
576-SP15-01WTG-C-HV

Littelfuse

ESD Protection Diodes / TVS Diodes 15V 100W

Learn More

Datasheet

6,460In Stock

10,000Expected 1/19/2027

Cut Tape

¥61.5

¥26.9

¥23.4

¥17.4

Reel

¥9

View

MouseReel Available

Min.: 1
Mult.: 1

: 10,000

ESD Protection Diodes / TVS Diodes 36V 100W

SP36-01WTG-C-HV
Littelfuse
1: ¥61.5
15,055In Stock

Mfr. Part #
SP36-01WTG-C-HV

Mouser Part #
576-SP36-01WTG-C-HV

Littelfuse

ESD Protection Diodes / TVS Diodes 36V 100W

Learn More

Datasheet

15,055In Stock

Cut Tape

¥61.5

¥26.9

¥23.4

¥17.4

Reel

¥10

View

MouseReel Available

Min.: 1
Mult.: 1

: 10,000

Resettable Fuses - PPTC 6V POLYFUSE 0402 LoRho SL .500A

0402L050SLKR
Littelfuse
1: ¥536.5
719In Stock
10,000Expected 10/14/2026

Mfr. Part #
0402L050SLKR

Mouser Part #
576-0402L050SLKR

Littelfuse

Resettable Fuses - PPTC 6V POLYFUSE 0402 LoRho SL .500A

Learn More

Datasheet

719In Stock

10,000Expected 10/14/2026

Cut Tape

¥536.5

¥402

¥373.7

¥313.9

View

Reel

¥235.9

MouseReel Available

Min.: 1
Mult.: 1

: 10,000

Resettable Fuses - PPTC PTC 6V POLY 0603 0.5A

0603L050YR
Littelfuse
1: ¥224.2
47In Stock
12,000Expected 10/1/2026

Mfr. Part #
0603L050YR

Mouser Part #
576-0603L050YR

Littelfuse

Resettable Fuses - PPTC PTC 6V POLY 0603 0.5A

Learn More

Datasheet

47In Stock

12,000Expected 10/1/2026

Cut Tape

¥224.2

¥202.6

¥152.3

Reel

¥152.3

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

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

0603L075SLYR
Littelfuse
1: ¥312.3
343In Stock
8,000On Order

Mfr. Part #
0603L075SLYR

Mouser Part #
576-0603L075SLYR

Littelfuse

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

Learn More

Datasheet

343In Stock

8,000On Order

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
453In Stock
4,000Expected 12/31/2026

Mfr. Part #
1206L110/12SLYR

Mouser Part #
576-1206L110/12SLYR

Littelfuse

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

Learn More

Datasheet

453In Stock

4,000Expected 12/31/2026

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 3.80A

1206L380SLTHYR
Littelfuse
1: ¥312.3
1,357In Stock

Mfr. Part #
1206L380SLTHYR

Mouser Part #
576-1206L380SLTHYR

Littelfuse

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

Learn More

Datasheet

1,357In Stock

Cut Tape

¥312.3

¥255.8

¥215.9

¥197.7

View

Reel

¥152.3

MouseReel Available

Min.: 1
Mult.: 1

: 4,000