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Circuit Protection

Circuit Protection devices and components are available at Mouser from industry leading manufacturers. Mouser is an authorized distributor for many circuit protection manufacturers including Bourns, Eaton, TDK, Littelfuse, Semtech, Vishay, & more.
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Please view our selection of circuit protection devices below.

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Types of Circuit Protection

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Results: 360,711

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Part #

ESD Protection Diodes / TVS Diodes TVS 3KW 30V 5%BI DO-214AB Foldback TR13

TPSMD30CA-FL
Littelfuse
1: $1.52
6,000In Stock
New Product

Mfr. Part No.
TPSMD30CA-FL

Mouser Part No
576-TPSMD30CA-FL

New Product

Littelfuse

ESD Protection Diodes / TVS Diodes TVS 3KW 30V 5%BI DO-214AB Foldback TR13

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Datasheet

6,000In Stock

Cut Tape

$1.52

$1.09

$0.784

$0.63

Reel

$0.531

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Industrial Surge Protectors FIL-1S-1-6A-230AC-PT

1292321
Phoenix Contact
1: $85.02
10In Stock
New Product

Mfr. Part No.
1292321

Mouser Part No
651-1292321

New Product

Phoenix Contact

Industrial Surge Protectors FIL-1S-1-6A-230AC-PT

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Datasheet

10In Stock

$85.02

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes ESD 3.3V 400W BI

CDSOD323-T03SC-Q
Bourns
1: $1.20
1,893In Stock
New Product

Mfr. Part No.
CDSOD323-T03SC-Q

Mouser Part No
652-CDSOD323-T03SC-Q

New Product

Bourns

ESD Protection Diodes / TVS Diodes ESD 3.3V 400W BI

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Datasheet

1,893In Stock

Cut Tape

$1.20

$0.75

$0.493

$0.384

Reel

$0.297

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

NTC (Negative Temperature Coefficient) Thermistors SMD NTC Thermistor 1206 5kOhm 3% B-3455 HT Series

B57621C5502H062
TDK
1: $0.82
2,800In Stock
New Product

Mfr. Part No.
B57621C5502H062

Mouser Part No
871-B57621C5502H062

New Product

TDK

NTC (Negative Temperature Coefficient) Thermistors SMD NTC Thermistor 1206 5kOhm 3% B-3455 HT Series

Datasheet

2,800In Stock

Cut Tape

$0.82

$0.772

$0.629

$0.591

View

Reel

$0.427

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Industrial & Electrical Fuses Specialty Fuses POWR-SPEED SQB ESR 1500VDC 3XL BOLT 450A

ESR3XLUB0450XI
Littelfuse
1: $614.42
3In Stock
New Product

Mfr. Part No.
ESR3XLUB0450XI

Mouser Part No
576-ESR3XLUB0450XI

New Product

Littelfuse

Industrial & Electrical Fuses Specialty Fuses POWR-SPEED SQB ESR 1500VDC 3XL BOLT 450A

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Datasheet

3In Stock

$614.42

$504.51

$459.23

Quote

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes 30V, 100A ,DNF2020-6L

SC3000-01UTG
Littelfuse
1: $1.59
3,100In Stock
New Product

Mfr. Part No.
SC3000-01UTG

Mouser Part No
576-SC3000-01UTG

New Product

Littelfuse

ESD Protection Diodes / TVS Diodes 30V, 100A ,DNF2020-6L

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Datasheet

3,100In Stock

Cut Tape

$1.59

$1.01

$0.666

$0.522

Reel

$0.406

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

SCRs 8A 800V Std TO-251 V-PAK

SJ8008VTP
Littelfuse
1: $3.11
750In Stock
New Product

Mfr. Part No.
SJ8008VTP

Mouser Part No
576-SJ8008VTP

New Product

Littelfuse

SCRs 8A 800V Std TO-251 V-PAK

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Datasheet

750In Stock

$3.11

$2.02

$1.40

$1.16

View

Min.: 1
Mult.: 1

Industrial Surge Protectors SFP2-1S-1-5A-120AC-UT

1292315
Phoenix Contact
1: $215.31
5In Stock
New Product

Mfr. Part No.
1292315

Mouser Part No
651-1292315

New Product

Phoenix Contact

Industrial Surge Protectors SFP2-1S-1-5A-120AC-UT

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Datasheet

5In Stock

$215.31

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes 18 V, 0.6 pF, 10 kV

AQ3118-02JTG
Littelfuse
1: $1.24
2,654In Stock
New Product

Mfr. Part No.
AQ3118-02JTG

Mouser Part No
576-AQ3118-02JTG

New Product

Littelfuse

ESD Protection Diodes / TVS Diodes 18 V, 0.6 pF, 10 kV

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Datasheet

2,654In Stock

Cut Tape

$1.24

$0.779

$0.512

$0.399

Reel

$0.276

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes TVS SURF MT DO214AA - SMBJ85CA CR T&R

SMBJ85CA-E
Littelfuse
1: $0.60
2,305In Stock
New Product

Mfr. Part No.
SMBJ85CA-E

Mouser Part No
576-SMBJ85CAE

New Product

Littelfuse

ESD Protection Diodes / TVS Diodes TVS SURF MT DO214AA - SMBJ85CA CR T&R

Datasheet

2,305In Stock

Cut Tape

$0.60

$0.312

$0.233

$0.176

Reel

$0.094

$0.09

Min.: 1
Mult.: 1

: 3,000

Varistors MOV 510V 10mm 2.5KA 10% Silcn Coatng Strt Leads AEC-Q200

511KH10-AT
YAGEO
1: $0.57
2,560In Stock
400On Order
New Product

Mfr. Part No.
511KH10-AT

Mouser Part No
603-511KH10-AT

New Product

YAGEO

Varistors MOV 510V 10mm 2.5KA 10% Silcn Coatng Strt Leads AEC-Q200

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Datasheet

2,560In Stock

400On Order

$0.57

$0.354

$0.306

$0.274

View

Min.: 1
Mult.: 1

Connectorised Surge Protectors

P8AX09-N/FF/HE
Citel
1: $154.68
3In Stock
New At Mouser

Mfr. Part No.
P8AX09-N/FF/HE

Mouser Part No
703-P8AX09-N/FF/HE

New At Mouser

Citel

Connectorised Surge Protectors

Datasheet

3In Stock

$154.68

$128.26

$121.03

$92.55

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes TVS SURF MT DO214AA - SMBJ33A 3K T&R

SMBJ33A-E
Littelfuse
1: $0.511
2,083In Stock
New Product

Mfr. Part No.
SMBJ33A-E

Mouser Part No
576-SMBJ33AE

New Product

Littelfuse

ESD Protection Diodes / TVS Diodes TVS SURF MT DO214AA - SMBJ33A 3K T&R

Datasheet

2,083In Stock

Cut Tape

$0.511

$0.269

$0.20

$0.152

Reel

$0.08

View

Min.: 1
Mult.: 1

: 3,000

Circuit Breaker Accessories NQB L103

69D2660G11
Eaton Electrical
1: $9,021.52
2In Stock
New Product

Mfr. Part No.
69D2660G11

Mouser Part No
504-69D2660G11

New Product

Eaton Electrical

Circuit Breaker Accessories NQB L103

2In Stock

$9,021.52

Min.: 1
Mult.: 1

Circuit Breakers 4P 63A 30 MA RCCB TYPE G/A

167109
Eaton Electrical
1: $1,438.25
1In Stock
New Product

Mfr. Part No.
167109

Mouser Part No
504-167109

New Product

Eaton Electrical

Circuit Breakers 4P 63A 30 MA RCCB TYPE G/A

Datasheet

1In Stock

$1,438.25

Min.: 1
Mult.: 1

Connectorised Surge Protectors COAXIAL SURGE PROTECTOR DEVICE, Slim Line GDT technology

3406.00.0036
HUBER+SUHNER
1: $257.66
8In Stock
New Product

Mfr. Part No.
3406.00.0036

Mouser Part No
455-3406000036

New Product

HUBER+SUHNER

Connectorised Surge Protectors COAXIAL SURGE PROTECTOR DEVICE, Slim Line GDT technology

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Datasheet

8In Stock

$257.66

$233.29

$224.26

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes 5KW, 54V 5%,BIDIR,SMC TVS

SMC5K54CAHM3/I
Vishay
1: $2.90
2,240In Stock
New Product

Mfr. Part No.
SMC5K54CAHM3/I

Mouser Part No
78-SMC5K54CAHM3/I

New Product

Vishay

ESD Protection Diodes / TVS Diodes 5KW, 54V 5%,BIDIR,SMC TVS

Learn More

Datasheet

2,240In Stock

Cut Tape

$2.90

$1.88

$1.38

$1.17

Reel

$0.941

View

Min.: 1
Mult.: 1

: 3,500

NTC (Negative Temperature Coefficient) Thermistors NTC Mini Ni 0.4 ld 10K 1 % Tp 0.4e/1e A

NTCLE213E3103FHT1A
Vishay / BC Components
1: $1.73
2,664In Stock
New Product

Mfr. Part No.
NTCLE213E3103FHT1A

Mouser Part No
594-NTCLE213E313FHT1

New Product

Vishay / BC Components

NTC (Negative Temperature Coefficient) Thermistors NTC Mini Ni 0.4 ld 10K 1 % Tp 0.4e/1e A

Datasheet

2,664In Stock

$1.73

$1.30

$1.04

$0.982

View

Min.: 1
Mult.: 1

Power Outlet Strips EA BA PDU 1U, C20 INPUT, 3.33 KW MAX, 11

T9092B-CBSF
Eaton
1: $1,211.61
32In Stock
26Expected 2026/10/21

Mfr. Part No.
T9092B-CBSF

Mouser Part No
545-T9092B-CBSF

Eaton

Power Outlet Strips EA BA PDU 1U, C20 INPUT, 3.33 KW MAX, 11

Datasheet

32In Stock

26Expected 2026/10/21

$1,211.61

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors 1K, +/-0.2C: 0C-70C, B3977, uninsulated wire

TTS-1KC3-BG
CTS Electronic Components
1: $2.24
496In Stock
New Product

Mfr. Part No.
TTS-1KC3-BG

Mouser Part No
774-TTS1KC3BG

New Product

CTS Electronic Components

NTC (Negative Temperature Coefficient) Thermistors 1K, +/-0.2C: 0C-70C, B3977, uninsulated wire

Learn More

Datasheet

496In Stock

$2.24

$1.93

$1.84

$1.67

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors 10K +/-1% Glass Bead, B3435, 300C

TT2-10KC8-8
CTS Electronic Components
1: $2.65
500In Stock
New Product

Mfr. Part No.
TT2-10KC8-8

Mouser Part No
774-TT210KC88

New Product

CTS Electronic Components

NTC (Negative Temperature Coefficient) Thermistors 10K +/-1% Glass Bead, B3435, 300C

Learn More

Datasheet

500In Stock

$2.65

$2.28

$2.17

$1.97

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors 30K +/-1% Glass Bead, B3990, 300C

TT2-30KC5-3
CTS Electronic Components
1: $2.47
497In Stock
New Product

Mfr. Part No.
TT2-30KC5-3

Mouser Part No
774-TT230KC53

New Product

CTS Electronic Components

NTC (Negative Temperature Coefficient) Thermistors 30K +/-1% Glass Bead, B3990, 300C

Learn More

Datasheet

497In Stock

$2.47

$2.13

$2.02

$1.84

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors 10k, DO-35 glass NTC, B3977

TTDO-10KC3-6-5%
CTS Electronic Components
1: $1.19
500In Stock
New Product

Mfr. Part No.
TTDO-10KC3-6-5%

Mouser Part No
774-TTDO10KC365%

New Product

CTS Electronic Components

NTC (Negative Temperature Coefficient) Thermistors 10k, DO-35 glass NTC, B3977

Learn More

Datasheet

500In Stock

$1.19

$1.02

$0.968

$0.879

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors 2.186K +/-1% Glass Bead, B3390,300C

TT2-2.186KC7L-1
CTS Electronic Components
1: $3.62
500In Stock
New Product

Mfr. Part No.
TT2-2.186KC7L-1

Mouser Part No
774-TT22.186KC7L1

New Product

CTS Electronic Components

NTC (Negative Temperature Coefficient) Thermistors 2.186K +/-1% Glass Bead, B3390,300C

Learn More

Datasheet

500In Stock

$3.62

$3.12

$2.97

$2.83

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors 10k, DO-35 glass NTC, B3977

TTDO-10KC3-8
CTS Electronic Components
1: $1.31
467In Stock
New Product

Mfr. Part No.
TTDO-10KC3-8

Mouser Part No
774-TTDO10KC38

New Product

CTS Electronic Components

NTC (Negative Temperature Coefficient) Thermistors 10k, DO-35 glass NTC, B3977

Learn More

Datasheet

467In Stock

$1.31

$1.13

$1.07

$0.979

View

Min.: 1
Mult.: 1

Circuit Protection

Types of Circuit Protection

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