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

SM Series Circuit Protection

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

Types of Circuit Protection

List Images

Results: 25

Applied Filters:

Series = SM

Reset All

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 NTC THERMISTOR 2K OHM 10% MELF

SM202F1K
Littelfuse
1: £1.70
459In Stock

Mfr. Part No.
SM202F1K

Mouser Part No
576-SM202F1K

Littelfuse

NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 2K OHM 10% MELF

Learn More

Datasheet

459In Stock

£1.70

£1.27

£1.02

£0.96

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors THERMISTOR, U.S. SENSOR

SM102B1K
Littelfuse
1: £1.15
691In Stock

Mfr. Part No.
SM102B1K

Mouser Part No
803-SM102B1K

Littelfuse

NTC (Negative Temperature Coefficient) Thermistors THERMISTOR, U.S. SENSOR

Learn More

Datasheet

691In Stock

£1.15

£0.96

£0.943

£0.856

View

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes 36V STAND-OFF,300W TVS 3K-RL

SM36.TCT
Semtech
1: £0.721
69,609In Stock

Mfr. Part No.
SM36.TCT

Mouser Part No
947-SM36.TCT

Semtech

ESD Protection Diodes / TVS Diodes 36V STAND-OFF,300W TVS 3K-RL

Learn More

Datasheet

69,609In Stock

Cut Tape

£0.721

£0.45

£0.294

£0.228

Reel

£0.178

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 400W 5V 2 Ch ESD Prot

SM05-02HTG
Littelfuse
1: £0.39
11,257In Stock

Mfr. Part No.
SM05-02HTG

Mouser Part No
576-SM05-02HTG

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 5V 2 Ch ESD Prot

Learn More

Datasheet

11,257In Stock

Cut Tape

£0.39

£0.313

£0.223

£0.177

£0.163

Reel

£0.135

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 300W TVS2 24V 7" RL

SM24.TCT
Semtech
1: £0.638
15,212In Stock

Mfr. Part No.
SM24.TCT

Mouser Part No
947-SM24.TCT

Semtech

ESD Protection Diodes / TVS Diodes 300W TVS2 24V 7" RL

Learn More

Datasheet

15,212In Stock

Cut Tape

£0.638

£0.388

£0.265

£0.212

£0.193

Reel

£0.162

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 400W 36V 2 Ch ESD Prot

SM36-02HTG
Littelfuse
1: £0.555
18,976In Stock

Mfr. Part No.
SM36-02HTG

Mouser Part No
576-SM36-02HTG

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 36V 2 Ch ESD Prot

Learn More

Datasheet

18,976In Stock

Cut Tape

£0.555

£0.35

£0.233

£0.183

£0.168

Reel

£0.135

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 1M OHM 10% MELF

SM105R1K
Littelfuse
1: £0.969
118In Stock

Mfr. Part No.
SM105R1K

Mouser Part No
576-SM105R1K

Littelfuse

NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 1M OHM 10% MELF

Learn More

Datasheet

118In Stock

£0.969

£0.925

£0.863

£0.826

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors THERMISTOR, U.S. SENSOR

SM303J1K
Littelfuse
1: £0.969
349In Stock

Mfr. Part No.
SM303J1K

Mouser Part No
576-SM303J1K

Littelfuse

NTC (Negative Temperature Coefficient) Thermistors THERMISTOR, U.S. SENSOR

Learn More

Datasheet

349In Stock

£0.969

£0.925

£0.863

£0.811

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors THERMISTOR, US SENSOR P/

SM103J1K
Littelfuse
1: £0.969
557In Stock

Mfr. Part No.
SM103J1K

Mouser Part No
803-SM103J1K

Littelfuse

NTC (Negative Temperature Coefficient) Thermistors THERMISTOR, US SENSOR P/

Learn More

Datasheet

557In Stock

£0.969

£0.925

£0.863

£0.826

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors NTC 10K OHM +/-10%

SM103J1K-TR
Littelfuse
1: £0.368
3,610In Stock

Mfr. Part No.
SM103J1K-TR

Mouser Part No
803-SM103J1K-TR

Littelfuse

NTC (Negative Temperature Coefficient) Thermistors NTC 10K OHM +/-10%

Learn More

Datasheet

3,610In Stock

Cut Tape

£0.368

£0.347

£0.325

£0.308

View

Reel

£0.228

MouseReel Available

Min.: 1
Mult.: 1

Reel: 2,500

NTC (Negative Temperature Coefficient) Thermistors THERMISTOR, U.S. SENSOR

SM502F1K
Littelfuse
1: £0.986
258In Stock

Mfr. Part No.
SM502F1K

Mouser Part No
803-SM502F1K

Littelfuse

NTC (Negative Temperature Coefficient) Thermistors THERMISTOR, U.S. SENSOR

Learn More

Datasheet

258In Stock

£0.986

£0.943

£0.882

£0.871

View

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes 300W TVS2 15V 7" RL

SM15.TCT
Semtech
1: £0.578
2,700In Stock
6,000Expected 09/03/2026

Mfr. Part No.
SM15.TCT

Mouser Part No
947-SM15.TCT

Semtech

ESD Protection Diodes / TVS Diodes 300W TVS2 15V 7" RL

Learn More

Datasheet

2,700In Stock

6,000Expected 09/03/2026

Cut Tape

£0.578

£0.373

£0.26

£0.212

£0.194

Reel

£0.162

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 400W 12V 2 Ch ESD Prot

SM12-02HTG
Littelfuse
1: £0.346
4,543In Stock

Mfr. Part No.
SM12-02HTG

Mouser Part No
576-SM12-02HTG

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 12V 2 Ch ESD Prot

Learn More

Datasheet

4,543In Stock

Cut Tape

£0.346

£0.229

£0.181

£0.167

£0.152

Reel

£0.135

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 400W 15V 2 Ch ESD Prot

SM15-02HTG
Littelfuse
1: £0.15
6,772In Stock

Mfr. Part No.
SM15-02HTG

Mouser Part No
576-SM15-02HTG

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 15V 2 Ch ESD Prot

Learn More

Datasheet

6,772In Stock

Cut Tape

£0.15

£0.148

£0.147

£0.146

Reel

£0.138

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 400W 24V 2 Ch ESD Prot

SM24-02HTG
Littelfuse
1: £0.18
9,000On Order

Mfr. Part No.
SM24-02HTG

Mouser Part No
576-SM24-02HTG

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 24V 2 Ch ESD Prot

Learn More

Datasheet

9,000On Order

Cut Tape

£0.18

£0.154

£0.145

Reel

£0.135

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 4.7K OHM 10%

SM472F1K
Littelfuse
1,000: £0.602
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
SM472F1K

Mouser Part No
576-SM472F1K

Littelfuse

NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 4.7K OHM 10%

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

£0.602

Min.: 1,000
Mult.: 1,000

NTC (Negative Temperature Coefficient) Thermistors THERMISTOR, US SENSOR

SM501B1K
Littelfuse
500: £0.759
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
SM501B1K

Mouser Part No
803-SM501B1K

Littelfuse

NTC (Negative Temperature Coefficient) Thermistors THERMISTOR, US SENSOR

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

£0.759

£0.722

£0.698

Min.: 500
Mult.: 500

NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 1K OHM 10% MELF

SM102E1K
Littelfuse
1: £1.54
Non-Stocked

Mfr. Part No.
SM102E1K

Mouser Part No
576-SM102E1K

Littelfuse

NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 1K OHM 10% MELF

Learn More

Datasheet

Non-Stocked

£1.54

£1.15

£0.925

£0.871

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 10K OHM 10% MELF

SM103G1K
Littelfuse
1: £1.55
Non-Stocked

Mfr. Part No.
SM103G1K

Mouser Part No
576-SM103G1K

Littelfuse

NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 10K OHM 10% MELF

Learn More

Datasheet

Non-Stocked

£1.55

£1.16

£0.934

£0.882

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 100K OHM 0.5C MELF

SM104J1O-TR
Littelfuse
5,000: £0.529
Non-Stocked

Mfr. Part No.
SM104J1O-TR

Mouser Part No
576-SM104J1O-TR

Littelfuse

NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 100K OHM 0.5C MELF

Learn More

Datasheet

Non-Stocked

£0.529

Min.: 5,000
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 100K OHM 10% MELF

SM104R1K
Littelfuse
1: £1.54
Non-Stocked

Mfr. Part No.
SM104R1K

Mouser Part No
576-SM104R1K

Littelfuse

NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 100K OHM 10% MELF

Learn More

Datasheet

Non-Stocked

£1.54

£1.15

£0.925

£0.871

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 2.186K OHM MELF

SM222E1K
Littelfuse
1: £1.54
Non-Stocked

Mfr. Part No.
SM222E1K

Mouser Part No
576-SM222E1K

Littelfuse

NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 2.186K OHM MELF

Learn More

Datasheet

Non-Stocked

£1.54

£1.15

£0.925

£0.871

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 2.5K OHM 10%

SM252B4K
Littelfuse
1: £1.54
Non-Stocked

Mfr. Part No.
SM252B4K

Mouser Part No
576-SM252B4K

Littelfuse

NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 2.5K OHM 10%

Learn More

Datasheet

Non-Stocked

£1.54

£1.15

£0.925

£0.871

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 250K OHM 10% MELF

SM254R1K
Littelfuse
1: £1.54
Non-Stocked

Mfr. Part No.
SM254R1K

Mouser Part No
576-SM254R1K

Littelfuse

NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 250K OHM 10% MELF

Learn More

Datasheet

Non-Stocked

£1.54

£1.15

£0.925

£0.871

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 500K OHM 10%

SM504R1K
Littelfuse
1: £1.54
Non-Stocked

Mfr. Part No.
SM504R1K

Mouser Part No
576-SM504R1K

Littelfuse

NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 500K OHM 10%

Learn More

Datasheet

Non-Stocked

£1.54

£1.15

£0.925

£0.871

View

Min.: 1
Mult.: 1

SM Series Circuit Protection

Types of Circuit Protection

Customer Service Office

Company

Resources

Support