Circuit Protection – Mouser Estonia

.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 #

Resettable Fuses - PPTC 6V 5.0A-HD 50A MAX

1206L500SL-VWR
Littelfuse
1: 2,31 €
8.000In Stock

Mfr. Part No.
1206L500SL-VWR

Mouser Part No
576-1206L500SL-VWR

Littelfuse

Resettable Fuses - PPTC 6V 5.0A-HD 50A MAX

Learn More

Datasheet

8.000In Stock

Cut Tape

2,31 €

1,92 €

1,77 €

1,47 €

View

Reel

1,03 €

MouseReel Available

Min.: 1
Mult.: 1

: 3.000

Resettable Fuses - PPTC 6V 6.0A-HD 50A SMD

1206L600SLWR
Littelfuse
1: 2,22 €
5.769In Stock

Mfr. Part No.
1206L600SLWR

Mouser Part No
576-1206L600SLWR

Littelfuse

Resettable Fuses - PPTC 6V 6.0A-HD 50A SMD

Learn More

Datasheet

5.769In Stock

Cut Tape

2,22 €

1,83 €

1,69 €

1,41 €

View

Reel

0,972 €

MouseReel Available

Min.: 1
Mult.: 1

: 3.000

Resettable Fuses - PPTC 6V POLYFUSE 1210 LoRho SL 3.5A

1210L350SLWR
Littelfuse
1: 2,17 €
5.412In Stock

Mfr. Part No.
1210L350SLWR

Mouser Part No
576-1210L350SLWR

Littelfuse

Resettable Fuses - PPTC 6V POLYFUSE 1210 LoRho SL 3.5A

Learn More

Datasheet

5.412In Stock

Cut Tape

2,17 €

1,79 €

1,65 €

1,38 €

View

Reel

0,998 €

MouseReel Available

Min.: 1
Mult.: 1

: 3.000

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

1210L450SLWR
Littelfuse
1: 2,23 €
2.087In Stock
6.000Expected 9/24/2026

Mfr. Part No.
1210L450SLWR

Mouser Part No
576-1210L450SLWR

Littelfuse

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

Learn More

Datasheet

2.087In Stock

6.000Expected 9/24/2026

Cut Tape

2,23 €

1,85 €

1,72 €

1,70 €

View

Reel

1,01 €

MouseReel Available

Min.: 1
Mult.: 1

: 3.000

Resettable Fuses - PPTC 6V 9.0A-HD 50A SMD

1210L900SLPR
Littelfuse
1: 2,17 €
5.492In Stock

Mfr. Part No.
1210L900SLPR

Mouser Part No
576-1210L900SLPR

Littelfuse

Resettable Fuses - PPTC 6V 9.0A-HD 50A SMD

Learn More

Datasheet

5.492In Stock

Cut Tape

2,17 €

1,81 €

1,65 €

1,38 €

View

Reel

0,998 €

MouseReel Available

Min.: 1
Mult.: 1

: 2.000

Resettable Fuses - PPTC 24V 3.0A-HD 50A SMD

1812L300/24SLER
Littelfuse
1: 2,17 €
7.993In Stock
12.500Expected 11/20/2026

Mfr. Part No.
1812L300/24SLER

Mouser Part No
576-1812L300/24SLER

Littelfuse

Resettable Fuses - PPTC 24V 3.0A-HD 50A SMD

Learn More

Datasheet

7.993In Stock

12.500Expected 11/20/2026

Cut Tape

2,17 €

1,81 €

1,65 €

1,38 €

View

Reel

0,998 €

MouseReel Available

Min.: 1
Mult.: 1

: 2.500

Resettable Fuses - PPTC 24V 6.0A-HD 100A MAX

2920L600/24SLER
Littelfuse
1: 3,03 €
2.145In Stock
5.000Expected 8/13/2026

Mfr. Part No.
2920L600/24SLER

Mouser Part No
576-2920L600/24SLER

Littelfuse

Resettable Fuses - PPTC 24V 6.0A-HD 100A MAX

Learn More

Datasheet

2.145In Stock

5.000Expected 8/13/2026

Cut Tape

3,03 €

2,51 €

2,31 €

1,93 €

View

Reel

1,46 €

MouseReel Available

Min.: 1
Mult.: 1

: 2.500

ESD Protection Diodes / TVS Diodes 400W 12V 5% Bi-Directional

SMAJ12CA
Littelfuse
1: 0,387 €
61.373In Stock
40.000Expected 9/30/2026

Mfr. Part No.
SMAJ12CA

Mouser Part No
576-SMAJ12CA

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 12V 5% Bi-Directional

Learn More

Datasheet

61.373In Stock

40.000Expected 9/30/2026

Cut Tape

0,387 €

0,22 €

0,165 €

0,137 €

Reel

0,083 €

View

MouseReel Available

Min.: 1
Mult.: 1

: 5.000

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

SMAJ14A
Littelfuse
1: 0,37 €
36.827In Stock

Mfr. Part No.
SMAJ14A

Mouser Part No
576-SMAJ14A

Littelfuse

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

Learn More

Datasheet

36.827In Stock

Cut Tape

0,37 €

0,22 €

0,142 €

0,105 €

View

Reel

0,065 €

MouseReel Available

Min.: 1
Mult.: 1

: 5.000

ESD Protection Diodes / TVS Diodes 400W 15V 5% Bi-Directional

SMAJ15CA
Littelfuse
1: 0,353 €
36.925In Stock
39.430Expected 8/13/2026

Mfr. Part No.
SMAJ15CA

Mouser Part No
576-SMAJ15CA

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 15V 5% Bi-Directional

Learn More

Datasheet

36.925In Stock

39.430Expected 8/13/2026

Cut Tape

0,353 €

0,183 €

0,159 €

0,12 €

View

Reel

0,073 €

MouseReel Available

Min.: 1
Mult.: 1

: 5.000

ESD Protection Diodes / TVS Diodes 400W 22V 5% Uni-Directional

SMAJ22A
Littelfuse
1: 0,404 €
30.226In Stock
43.975On Order

Mfr. Part No.
SMAJ22A

Mouser Part No
576-SMAJ22A

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 22V 5% Uni-Directional

Learn More

Datasheet

30.226In Stock

43.975On Order

Cut Tape

0,404 €

0,183 €

0,155 €

0,118 €

Reel

0,071 €

View

MouseReel Available

Min.: 1
Mult.: 1

: 5.000

ESD Protection Diodes / TVS Diodes 400W 24V 5% Uni-Directional

SMAJ24A
Littelfuse
1: 0,387 €
48.472In Stock
70.000Expected 1/26/2027

Mfr. Part No.
SMAJ24A

Mouser Part No
576-SMAJ24A

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 24V 5% Uni-Directional

Learn More

Datasheet

48.472In Stock

70.000Expected 1/26/2027

Cut Tape

0,387 €

0,183 €

0,16 €

0,12 €

View

Reel

0,065 €

MouseReel Available

Min.: 1
Mult.: 1

: 5.000

ESD Protection Diodes / TVS Diodes 400W 250V 5% Bi-Directional

SMAJ250CA
Littelfuse
1: 0,826 €
7.807In Stock
10.000Expected 11/30/2026

Mfr. Part No.
SMAJ250CA

Mouser Part No
576-SMAJ250CA

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 250V 5% Bi-Directional

Learn More

Datasheet

7.807In Stock

10.000Expected 11/30/2026

Cut Tape

0,826 €

0,378 €

0,333 €

0,255 €

View

Reel

0,181 €

MouseReel Available

Min.: 1
Mult.: 1

: 5.000

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

SMAJ28CA
Littelfuse
1: 0,413 €
28.302In Stock
35.000Expected 2/15/2027

Mfr. Part No.
SMAJ28CA

Mouser Part No
576-SMAJ28CA

Littelfuse

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

Learn More

Datasheet

28.302In Stock

35.000Expected 2/15/2027

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 €
92.065In 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

92.065In 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 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 €
44.697In Stock
25.000Expected 12/3/2026

Mfr. Part No.
SMAJ36A

Mouser Part No
576-SMAJ36A

Littelfuse

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

Learn More

Datasheet

44.697In Stock

25.000Expected 12/3/2026

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 €
81.688In Stock
120.000Expected 11/30/2026

Mfr. Part No.
SMAJ40CA

Mouser Part No
576-SMAJ40CA

Littelfuse

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

Learn More

Datasheet

81.688In Stock

120.000Expected 11/30/2026

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 €
71.185In 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

71.185In 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 €
27.322In Stock
35.000Expected 12/7/2026

Mfr. Part No.
SMAJ51A

Mouser Part No
576-SMAJ51A

Littelfuse

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

Learn More

Datasheet

27.322In Stock

35.000Expected 12/7/2026

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 €
26.888In Stock
35.000Expected 8/12/2026

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

26.888In Stock

35.000Expected 8/12/2026

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 €
17.702In 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

17.702In 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

Connected Drug Delivery Device Ecosystem Solutions

Types of Circuit Protection

Customer Service Office

Company

Resources

Support