Circuit Protection – Mouser Finland

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

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.

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

Types of Circuit Protection

List Images

Results: 202

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 26V 5% Bi-Directional

SMAJ26CA
Littelfuse
1: 0,396 €
17 104In Stock
50 000Expected 24/08/2026

Mfr. Part No.
SMAJ26CA

Mouser Part No
576-SMAJ26CA

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 26V 5% Bi-Directional

Learn More

Datasheet

17 104In Stock

50 000Expected 24/08/2026

Cut Tape

0,396 €

0,194 €

0,17 €

0,127 €

View

Reel

0,073 €

MouseReel Available

Min.: 1
Mult.: 1

: 5 000

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

SMAJ28CA
Littelfuse
1: 0,413 €
27 092In Stock
35 000Expected 15/02/2027

Mfr. Part No.
SMAJ28CA

Mouser Part No
576-SMAJ28CA

Littelfuse

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

Learn More

Datasheet

27 092In Stock

35 000Expected 15/02/2027

Cut Tape

0,413 €

0,183 €

0,157 €

0,12 €

View

Reel

0,073 €

MouseReel Available

Min.: 1
Mult.: 1

: 5 000

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

SMAJ300CA
Littelfuse
1: 0,748 €
12 657In Stock
40 000On Order

Mfr. Part No.
SMAJ300CA

Mouser Part No
576-SMAJ300CA

Littelfuse

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

Learn More

Datasheet

12 657In Stock

40 000On Order

Cut Tape

0,748 €

0,356 €

0,266 €

0,218 €

View

Reel

0,174 €

MouseReel Available

Min.: 1
Mult.: 1

: 5 000

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

SMAJ30CA
Littelfuse
1: 0,344 €
91 355In Stock
155 000On Order

Mfr. Part No.
SMAJ30CA

Mouser Part No
576-SMAJ30CA

Littelfuse

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

Learn More

Datasheet

91 355In Stock

155 000On Order

Cut Tape

0,344 €

0,183 €

0,161 €

0,12 €

0,109 €

Reel

0,073 €

MouseReel Available

Min.: 1
Mult.: 1

: 5 000

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

SMAJ33A
Littelfuse
1: 0,396 €
41 729In Stock
85 000Expected 05/11/2026

Mfr. Part No.
SMAJ33A

Mouser Part No
576-SMAJ33A

Littelfuse

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

Learn More

Datasheet

41 729In Stock

85 000Expected 05/11/2026

Cut Tape

0,396 €

0,179 €

0,153 €

0,116 €

Reel

0,078 €

View

MouseReel Available

Min.: 1
Mult.: 1

: 5 000

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

SMAJ350A
Littelfuse
1: 0,757 €
8 400In Stock

Mfr. Part No.
SMAJ350A

Mouser Part No
576-SMAJ350A

Littelfuse

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

Learn More

Datasheet

8 400In Stock

Cut Tape

0,757 €

0,378 €

0,315 €

0,237 €

View

Reel

0,168 €

MouseReel Available

Min.: 1
Mult.: 1

: 5 000

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

SMAJ36A
Littelfuse
1: 0,344 €
43 146In Stock
25 000Expected 03/12/2026

Mfr. Part No.
SMAJ36A

Mouser Part No
576-SMAJ36A

Littelfuse

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

Learn More

Datasheet

43 146In Stock

25 000Expected 03/12/2026

Cut Tape

0,344 €

0,183 €

0,151 €

0,12 €

Reel

0,069 €

View

MouseReel Available

Min.: 1
Mult.: 1

: 5 000

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

SMAJ40A
Littelfuse
1: 0,327 €
42 488In Stock

Mfr. Part No.
SMAJ40A

Mouser Part No
576-SMAJ40A

Littelfuse

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

Learn More

Datasheet

42 488In Stock

Cut Tape

0,327 €

0,179 €

0,151 €

0,116 €

Reel

0,067 €

View

MouseReel Available

Min.: 1
Mult.: 1

: 5 000

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

SMAJ40CA
Littelfuse
1: 0,439 €
81 188In Stock
120 000Expected 16/11/2026

Mfr. Part No.
SMAJ40CA

Mouser Part No
576-SMAJ40CA

Littelfuse

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

Learn More

Datasheet

81 188In Stock

120 000Expected 16/11/2026

Cut Tape

0,439 €

0,194 €

0,168 €

0,127 €

View

Reel

0,073 €

MouseReel Available

Min.: 1
Mult.: 1

: 5 000

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

SMAJ5.0CA
Littelfuse
1: 0,387 €
66 185In Stock
135 000On Order

Mfr. Part No.
SMAJ5.0CA

Mouser Part No
576-SMAJ5.0CA

Littelfuse

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

Learn More

Datasheet

66 185In Stock

135 000On Order

Cut Tape

0,387 €

0,183 €

0,15 €

0,12 €

View

Reel

0,077 €

MouseReel Available

Min.: 1
Mult.: 1

: 5 000

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

SMAJ51A
Littelfuse
1: 0,396 €
19 322In Stock
35 000Expected 18/01/2027

Mfr. Part No.
SMAJ51A

Mouser Part No
576-SMAJ51A

Littelfuse

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

Learn More

Datasheet

19 322In Stock

35 000Expected 18/01/2027

Cut Tape

0,396 €

0,179 €

0,153 €

0,116 €

Reel

0,068 €

View

MouseReel Available

Min.: 1
Mult.: 1

: 5 000

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

SMAJ58CA
Littelfuse
1: 0,413 €
102 753In Stock

Mfr. Part No.
SMAJ58CA

Mouser Part No
576-SMAJ58CA

Littelfuse

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

Learn More

Datasheet

102 753In Stock

Cut Tape

0,413 €

0,183 €

0,161 €

0,12 €

View

Reel

0,073 €

MouseReel Available

Min.: 1
Mult.: 1

: 5 000

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

SMAJ6.0A
Littelfuse
1: 0,31 €
60 498In Stock

Mfr. Part No.
SMAJ6.0A

Mouser Part No
576-SMAJ6.0A

Littelfuse

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

Learn More

Datasheet

60 498In Stock

Cut Tape

0,31 €

0,179 €

0,138 €

0,112 €

Reel

0,067 €

View

MouseReel Available

Min.: 1
Mult.: 1

: 5 000

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

SMAJ60CA
Littelfuse
1: 0,404 €
17 102In Stock
65 000On Order

Mfr. Part No.
SMAJ60CA

Mouser Part No
576-SMAJ60CA

Littelfuse

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

Learn More

Datasheet

17 102In Stock

65 000On Order

Cut Tape

0,404 €

0,194 €

0,163 €

0,126 €

View

Reel

0,073 €

MouseReel Available

Min.: 1
Mult.: 1

: 5 000

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

SMAJ64A
Littelfuse
1: 0,404 €
34 295In Stock

Mfr. Part No.
SMAJ64A

Mouser Part No
576-SMAJ64A

Littelfuse

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

Learn More

Datasheet

34 295In Stock

Cut Tape

0,404 €

0,183 €

0,155 €

0,12 €

View

Reel

0,065 €

MouseReel Available

Min.: 1
Mult.: 1

: 5 000

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

SP3522-01ETG
Littelfuse
1: 0,37 €
119 093In Stock

Mfr. Part No.
SP3522-01ETG

Mouser Part No
576-SP3522-01ETG

Littelfuse

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

Learn More

Datasheet

119 093In Stock

Cut Tape

0,37 €

0,173 €

0,132 €

0,101 €

View

Reel

0,068 €

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: 0,335 €
42 329In Stock

Mfr. Part No.
SP3522-01UTG

Mouser Part No
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

0,335 €

0,149 €

0,128 €

0,096 €

View

Reel

0,055 €

MouseReel Available

Min.: 1
Mult.: 1

: 15 000

ESD Protection Diodes / TVS Diodes 15V 100W

SP15-01WTG-C-HV
Littelfuse
1: 0,318 €
6 460In Stock
10 000Expected 19/01/2027

Mfr. Part No.
SP15-01WTG-C-HV

Mouser Part No
576-SP15-01WTG-C-HV

Littelfuse

ESD Protection Diodes / TVS Diodes 15V 100W

Learn More

Datasheet

6 460In Stock

10 000Expected 19/01/2027

Cut Tape

0,318 €

0,139 €

0,121 €

0,09 €

View

Reel

0,046 €

MouseReel Available

Min.: 1
Mult.: 1

: 10 000

ESD Protection Diodes / TVS Diodes 36V 100W

SP36-01WTG-C-HV
Littelfuse
1: 0,318 €
15 055In Stock

Mfr. Part No.
SP36-01WTG-C-HV

Mouser Part No
576-SP36-01WTG-C-HV

Littelfuse

ESD Protection Diodes / TVS Diodes 36V 100W

Learn More

Datasheet

15 055In Stock

Cut Tape

0,318 €

0,139 €

0,121 €

0,09 €

Reel

0,052 €

View

MouseReel Available

Min.: 1
Mult.: 1

: 10 000

Resettable Fuses - PPTC PTC 6V POLY 0603 0.5A

0603L050YR
Littelfuse
1: 1,16 €
47In Stock
12 000Expected 01/10/2026

Mfr. Part No.
0603L050YR

Mouser Part No
576-0603L050YR

Littelfuse

Resettable Fuses - PPTC PTC 6V POLY 0603 0.5A

Learn More

Datasheet

47In Stock

12 000Expected 01/10/2026

Cut Tape

1,16 €

1,07 €

0,886 €

0,815 €

0,789 €

Reel

0,789 €

MouseReel Available

Min.: 1
Mult.: 1

: 4 000

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

0603L075SLYR
Littelfuse
1: 1,62 €
343In Stock
8 000On Order

Mfr. Part No.
0603L075SLYR

Mouser Part No
576-0603L075SLYR

Littelfuse

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

Learn More

Datasheet

343In Stock

8 000On Order

Cut Tape

1,62 €

1,44 €

1,23 €

1,12 €

View

Reel

0,789 €

MouseReel Available

Min.: 1
Mult.: 1

: 4 000

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

0805L350SLYR
Littelfuse
1: 2,17 €
671In Stock

Mfr. Part No.
0805L350SLYR

Mouser Part No
576-0805L350SLYR

Littelfuse

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

Learn More

Datasheet

671In Stock

Cut Tape

2,17 €

1,79 €

1,65 €

1,38 €

View

Reel

0,963 €

MouseReel Available

Min.: 1
Mult.: 1

: 4 000

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

0805L400SLWR
Littelfuse
1: 2,21 €
1 277In Stock

Mfr. Part No.
0805L400SLWR

Mouser Part No
576-0805L400SLWR

Littelfuse

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

Learn More

Datasheet

1 277In Stock

Cut Tape

2,21 €

1,83 €

1,69 €

1,40 €

View

Reel

1,01 €

MouseReel Available

Min.: 1
Mult.: 1

: 3 000

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

1206L110/12SLYR
Littelfuse
1: 2,67 €
463In Stock
4 000Expected 31/12/2026

Mfr. Part No.
1206L110/12SLYR

Mouser Part No
576-1206L110/12SLYR

Littelfuse

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

Learn More

Datasheet

463In Stock

4 000Expected 31/12/2026

Cut Tape

2,67 €

2,37 €

2,16 €

1,79 €

View

Reel

1,30 €

MouseReel Available

Min.: 1
Mult.: 1

: 4 000

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

1206L380SLTHYR
Littelfuse
1: 1,62 €
1 357In Stock

Mfr. Part No.
1206L380SLTHYR

Mouser Part No
576-1206L380SLTHYR

Littelfuse

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

Learn More

Datasheet

1 357In Stock

Cut Tape

1,62 €

1,32 €

1,12 €

1,02 €

View

Reel

0,789 €

MouseReel Available

Min.: 1
Mult.: 1

: 4 000

Portable Medical Devices & Connected Drug Delivery

Types of Circuit Protection

Customer Service Office

Company

Resources

Support