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

Semitec Circuit Protection

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

Types of Circuit Protection

List Images

Results: 457

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 #

NTC (Negative Temperature Coefficient) Thermistors 5ohms 6amps Clinch lead

5D2-15LC
Semitec
1: $1.71
63In Stock
100Expected 2026/04/03

Mfr. Part No.
5D2-15LC

Mouser Part No
954-5D2-15LC

Semitec

NTC (Negative Temperature Coefficient) Thermistors 5ohms 6amps Clinch lead

Datasheet

63In Stock

100Expected 2026/04/03

$1.71

$1.28

$1.03

$0.966

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors 5ohms 6amps Straight Lead

5D2-15LD
Semitec
1: $1.71
193In Stock

Mfr. Part No.
5D2-15LD

Mouser Part No
954-5D2-15LD

Semitec

NTC (Negative Temperature Coefficient) Thermistors 5ohms 6amps Straight Lead

Datasheet

193In Stock

$1.71

$1.28

$1.03

$0.966

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors 5ohms 8amps Clinch lead

5D2-18LC
Semitec
1: $1.69
204In Stock

Mfr. Part No.
5D2-18LC

Mouser Part No
954-5D2-18LC

Semitec

NTC (Negative Temperature Coefficient) Thermistors 5ohms 8amps Clinch lead

Datasheet

204In Stock

$1.69

$1.51

$1.43

$1.37

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors 8ohms 2amps Straight Lead

8D2-07LD
Semitec
1: $0.433
310In Stock

Mfr. Part No.
8D2-07LD

Mouser Part No
954-8D2-07LD

Semitec

NTC (Negative Temperature Coefficient) Thermistors 8ohms 2amps Straight Lead

Datasheet

310In Stock

$0.433

$0.399

$0.354

$0.343

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors 8ohms 3amps Clinch lead

8D2-11LC
Semitec
1: $0.655
1,105In Stock

Mfr. Part No.
8D2-11LC

Mouser Part No
954-8D2-11LC

Semitec

NTC (Negative Temperature Coefficient) Thermistors 8ohms 3amps Clinch lead

Datasheet

1,105In Stock

$0.655

$0.621

$0.58

$0.579

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors 8ohms 3amps Straight Lead

8D2-11LD
Semitec
1: $1.09
300In Stock

Mfr. Part No.
8D2-11LD

Mouser Part No
954-8D2-11LD

Semitec

NTC (Negative Temperature Coefficient) Thermistors 8ohms 3amps Straight Lead

Datasheet

300In Stock

$1.09

$0.834

$0.72

$0.694

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors 8ohms 4amps Straight Lead

8D2-13LD
Semitec
1: $0.807
113In Stock

Mfr. Part No.
8D2-13LD

Mouser Part No
954-8D2-13LD

Semitec

NTC (Negative Temperature Coefficient) Thermistors 8ohms 4amps Straight Lead

Datasheet

113In Stock

$0.807

$0.756

$0.707

$0.669

View

Min.: 1
Mult.: 1

Varistors 470V 2500A 12.5mm

Z10D471
Semitec
1: $1.65
589In Stock

Mfr. Part No.
Z10D471

Mouser Part No
954-Z10D471

Semitec

Varistors 470V 2500A 12.5mm

Datasheet

589In Stock

$1.65

$1.01

$0.659

$0.613

View

Min.: 1
Mult.: 1

Varistors 120V 4500A 16mm

Z15D121
Semitec
1: $2.17
693In Stock

Mfr. Part No.
Z15D121

Mouser Part No
954-Z15D121

Semitec

Varistors 120V 4500A 16mm

Datasheet

693In Stock

$2.17

$1.35

$0.925

$0.864

View

Min.: 1
Mult.: 1

Varistors 390V 4500A 16mm

Z15D391
Semitec
1: $2.17
830In Stock

Mfr. Part No.
Z15D391

Mouser Part No
954-Z15D391

Semitec

Varistors 390V 4500A 16mm

Datasheet

830In Stock

$2.17

$1.35

$0.925

$0.864

View

Min.: 1
Mult.: 1

Varistors 39V 250A 8.5mm

Z7D390
Semitec
1: $1.30
307In Stock

Mfr. Part No.
Z7D390

Mouser Part No
954-Z7D390

Semitec

Varistors 39V 250A 8.5mm

Datasheet

307In Stock

$1.30

$0.786

$0.502

$0.443

View

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes 12V 250W

ZS1012-T
Semitec
1: $1.42
1,620In Stock

Mfr. Part No.
ZS1012-T

Mouser Part No
954-ZS1012-T

Semitec

ESD Protection Diodes / TVS Diodes 12V 250W

Datasheet

1,620In Stock

Cut Tape

$1.42

$1.14

$0.846

$0.75

$0.613

Reel

$0.612

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1,500

ESD Protection Diodes / TVS Diodes 18V 250W

ZS1018-T
Semitec
1: $2.34
1,292In Stock
1,104Expected 2026/04/03

Mfr. Part No.
ZS1018-T

Mouser Part No
954-ZS1018-T

Semitec

ESD Protection Diodes / TVS Diodes 18V 250W

Datasheet

1,292In Stock

1,104Expected 2026/04/03

Cut Tape

$2.34

$1.50

$1.01

$0.846

Reel

$0.675

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1,500

ESD Protection Diodes / TVS Diodes 18V 250W

ZS1018U-T
Semitec
1: $1.29
1,617In Stock

Mfr. Part No.
ZS1018U-T

Mouser Part No
954-ZS1018U-T

Semitec

ESD Protection Diodes / TVS Diodes 18V 250W

Datasheet

1,617In Stock

Cut Tape

$1.29

$0.951

$0.673

$0.542

Reel

$0.429

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1,500

ESD Protection Diodes / TVS Diodes 22V 250W

ZS1022-T
Semitec
1: $1.54
715In Stock

Mfr. Part No.
ZS1022-T

Mouser Part No
954-ZS1022-T

Semitec

ESD Protection Diodes / TVS Diodes 22V 250W

Datasheet

715In Stock

Cut Tape

$1.54

$1.22

$0.901

$0.712

Reel

$0.533

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1,500

ESD Protection Diodes / TVS Diodes 22V 250W

ZS1022U-T
Semitec
1: $1.36
463In Stock

Mfr. Part No.
ZS1022U-T

Mouser Part No
954-ZS1022U-T

Semitec

ESD Protection Diodes / TVS Diodes 22V 250W

Datasheet

463In Stock

Cut Tape

$1.36

$0.951

$0.673

$0.542

Reel

$0.43

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1,500

ESD Protection Diodes / TVS Diodes 33V 250W

ZS1033-T
Semitec
1: $1.48
528In Stock

Mfr. Part No.
ZS1033-T

Mouser Part No
954-ZS1033-T

Semitec

ESD Protection Diodes / TVS Diodes 33V 250W

Datasheet

528In Stock

Cut Tape

$1.48

$1.20

$0.913

$0.75

Reel

$0.602

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1,500

ESD Protection Diodes / TVS Diodes 33V 250W

ZS1033U-T
Semitec
1: $1.36
1,064In Stock

Mfr. Part No.
ZS1033U-T

Mouser Part No
954-ZS1033U-T

Semitec

ESD Protection Diodes / TVS Diodes 33V 250W

Datasheet

1,064In Stock

Cut Tape

$1.36

$0.951

$0.673

$0.542

$0.505

Reel

$0.44

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1,500

ESD Protection Diodes / TVS Diodes 39V 250W

ZS1039U-T
Semitec
1: $1.15
1,339In Stock

Mfr. Part No.
ZS1039U-T

Mouser Part No
954-ZS1039U-T

Semitec

ESD Protection Diodes / TVS Diodes 39V 250W

Datasheet

1,339In Stock

Cut Tape

$1.15

$0.939

$0.673

$0.606

$0.495

Reel

$0.494

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1,500

ESD Protection Diodes / TVS Diodes 47V 250W

ZS1047-T
Semitec
1: $1.42
1,938In Stock

Mfr. Part No.
ZS1047-T

Mouser Part No
954-ZS1047-T

Semitec

ESD Protection Diodes / TVS Diodes 47V 250W

Datasheet

1,938In Stock

Cut Tape

$1.42

$1.14

$0.80

$0.75

$0.613

Reel

$0.612

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1,500

NTC (Negative Temperature Coefficient) Thermistors 10kohm 1%

103AT-2
Semitec
1: $0.678
104,560On Order

Mfr. Part No.
103AT-2

Mouser Part No
954-103AT-2

Semitec

NTC (Negative Temperature Coefficient) Thermistors 10kohm 1%

Learn More

Datasheet

104,560On Order

$0.678

$0.637

$0.595

$0.568

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors 10kohm 1% Shape 1 30 AWG 100mm

103AT-4-70261
Semitec
1: $0.819
39,782On Order

Mfr. Part No.
103AT-4-70261

Mouser Part No
954-103AT-4-70261

Semitec

NTC (Negative Temperature Coefficient) Thermistors 10kohm 1% Shape 1 30 AWG 100mm

Learn More

Datasheet

39,782On Order

$0.819

$0.773

$0.723

$0.69

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors 10kohm 5% 0402

103FT1005A5P1
Semitec
1: $6.59
1,650On Order

Mfr. Part No.
103FT1005A5P1

Mouser Part No
954-103FT1005A5P1

Semitec

NTC (Negative Temperature Coefficient) Thermistors 10kohm 5% 0402

Learn More

Datasheet

1,650On Order

Cut Tape

$6.59

$5.86

$5.28

$4.91

View

Reel

$3.97

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1,000

NTC (Negative Temperature Coefficient) Thermistors 20ohms 2amps Straight Lead

20D2-11LD
Semitec
1: $0.515
4In Stock

Mfr. Part No.
20D2-11LD

Mouser Part No
954-20D2-11LD

Semitec

NTC (Negative Temperature Coefficient) Thermistors 20ohms 2amps Straight Lead

Datasheet

4In Stock

$0.515

$0.426

$0.383

$0.342

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors 50kohm 3%

503NT-4-R025H42G
Semitec
1: $1.48
3,700On Order

Mfr. Part No.
503NT-4-R025H42G

Mouser Part No
954-503NT-4-R025H42G

Semitec

NTC (Negative Temperature Coefficient) Thermistors 50kohm 3%

Datasheet

3,700On Order

$1.48

$1.11

$0.892

$0.837

View

Min.: 1
Mult.: 1

Semitec Circuit Protection

Types of Circuit Protection

Customer Service Office

Company

Resources

Support