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Circuit Protection

Circuit Protection devices and components are available at Mouser Electronics from industry leading manufacturers. Mouser is an authorized distributor for many circuit protection manufacturers including Analog Devices, Bourns, Eaton, Phoenix Contact, TDK EPCOS, Littelfuse, 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: 362,154

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Part #

Connectorized Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, 10MHz - 1GHz, DC Block, 1.5kW, 3.5mJ, 20kA, Blocking Cap, Hole Mount

IS-B50LN-C0
PolyPhaser
1: $141.29
12In Stock
72On Order
New Product

Mfr. Part #
IS-B50LN-C0

Mouser Part #
44-IS-B50LN-C0

New Product

PolyPhaser

Connectorized Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, 10MHz - 1GHz, DC Block, 1.5kW, 3.5mJ, 20kA, Blocking Cap, Hole Mount

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Datasheet

12In Stock

72On Order

$141.29

$134.01

Min.: 1
Mult.: 1

Surge Protection Accessories IX Series Pole Mount Kit

IX-POLE-KIT
PolyPhaser
1: $97.57
9In Stock
New Product

Mfr. Part #
IX-POLE-KIT

Mouser Part #
44-IX-POLE-KIT

New Product

PolyPhaser

Surge Protection Accessories IX Series Pole Mount Kit

Datasheet

9In Stock

$97.57

$92.38

Min.: 1
Mult.: 1

Surge Protection Accessories Transition Clamp with Shims to Connect Copper to Galvanized Tower Legs for 1 1/4 to 2 1/4 inch

TK-2
PolyPhaser
1: $70.40
9In Stock
New Product

Mfr. Part #
TK-2

Mouser Part #
44-TK-2

New Product

PolyPhaser

Surge Protection Accessories Transition Clamp with Shims to Connect Copper to Galvanized Tower Legs for 1 1/4 to 2 1/4 inch

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Datasheet

9In Stock

$70.40

$65.69

$62.93

Min.: 1
Mult.: 1

Connectorized Surge Protectors 7/16 F/M Bulkhead Coaxial RF Surge Protector, 698MHz - 2.7GHz, DC Block, 500W, IP67, .005uJ, 40kA, Filter, Low PIM

TSX-DFM
PolyPhaser
1: $331.63
5In Stock
New Product

Mfr. Part #
TSX-DFM

Mouser Part #
44-TSX-DFM

New Product

PolyPhaser

Connectorized Surge Protectors 7/16 F/M Bulkhead Coaxial RF Surge Protector, 698MHz - 2.7GHz, DC Block, 500W, IP67, .005uJ, 40kA, Filter, Low PIM

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Datasheet

5In Stock

$331.63

$317.61

Min.: 1
Mult.: 1

Connectorized Surge Protectors Type N F/M Bulkhead Coaxial RF Surge Protector, 698MHz - 2.7GHz, DC Block, 500W, IP67, .005uJ, 40kA, Filter

TSX-NFM
PolyPhaser
1: $200.79
9In Stock
New Product

Mfr. Part #
TSX-NFM

Mouser Part #
44-TSX-NFM

New Product

PolyPhaser

Connectorized Surge Protectors Type N F/M Bulkhead Coaxial RF Surge Protector, 698MHz - 2.7GHz, DC Block, 500W, IP67, .005uJ, 40kA, Filter

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Datasheet

9In Stock

$200.79

$190.44

Min.: 1
Mult.: 1

Connectorized Surge Protectors Type N M/F Coaxial RF Surge Protector, 0.5MHz - 1GHz, DC Block, 750W, IP67, 15mJ, 20kA, Filter, Bracket Down, Hole Mount

VUF50NHP-MA
PolyPhaser
1: $417.95
3In Stock
New Product

Mfr. Part #
VUF50NHP-MA

Mouser Part #
44-VUF50NHP-MA

New Product

PolyPhaser

Connectorized Surge Protectors Type N M/F Coaxial RF Surge Protector, 0.5MHz - 1GHz, DC Block, 750W, IP67, 15mJ, 20kA, Filter, Bracket Down, Hole Mount

Datasheet

3In Stock

$417.95

$400.20

Min.: 1
Mult.: 1

Circuit Breaker Accessories 508, DM, 40A Supply Module, IOLink, ATEX

EM12D-TIO-000-DC24V-40A-E
E-T-A
1: $192.27
6In Stock
New Product

Mfr. Part #
EM12D-TIO-000-DC24V-40A-E

Mouser Part #
457-EM12DTIO24V4AE

New Product

E-T-A

Circuit Breaker Accessories 508, DM, 40A Supply Module, IOLink, ATEX

Datasheet

6In Stock

$192.27

$163.21

$151.68

Min.: 1
Mult.: 1

Circuit Breaker Accessories 508, DM, 40A Supply Module, Modbus, ATEX

EM12D-TMB-000-DC24V-40A-E
E-T-A
1: $261.62
3In Stock
New Product

Mfr. Part #
EM12D-TMB-000-DC24V-40A-E

Mouser Part #
457-EM12DTMB24V4AE

New Product

E-T-A

Circuit Breaker Accessories 508, DM, 40A Supply Module, Modbus, ATEX

Datasheet

3In Stock

$261.62

$254.38

$226.86

$210.82

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes 400W,24V5%,SMFBIDIRTVS

4SMF24CA-M3/I
Vishay Semiconductors
1: $0.72
6,669In Stock
New Product

Mfr. Part #
4SMF24CA-M3/I

Mouser Part #
78-4SMF24CA-M3/I

New Product

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 400W,24V5%,SMFBIDIRTVS

Datasheet

6,669In Stock

Cut Tape

$0.72

$0.505

$0.248

$0.207

Reel

$0.095

View

Min.: 1
Mult.: 1

: 10,000

ESD Protection Diodes / TVS Diodes 400W,28V5%,SMFBIDIRTVS

4SMF28CA-M3/I
Vishay Semiconductors
1: $0.72
6,832In Stock
New Product

Mfr. Part #
4SMF28CA-M3/I

Mouser Part #
78-4SMF28CA-M3/I

New Product

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 400W,28V5%,SMFBIDIRTVS

Datasheet

6,832In Stock

Cut Tape

$0.72

$0.505

$0.248

$0.207

Reel

$0.095

View

Min.: 1
Mult.: 1

: 10,000

Varistors CANFD, 15pF, 28VDC, 0402

AVRH10C390KT150NA8
TDK
1: $0.173
20,000In Stock
New Product

Mfr. Part #
AVRH10C390KT150NA8

Mouser Part #
810-AVRH10C390KT150N

New Product

TDK

Varistors CANFD, 15pF, 28VDC, 0402

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Datasheet

20,000In Stock

Cut Tape

$0.173

$0.098

$0.082

$0.075

View

Reel

$0.056

MouseReel Available

Min.: 1
Mult.: 1

: 10,000

NTC Thermistors SMD NTC Thermistor 0603 47kOhm 1% B-4131 soft

B57359V6473F260
TDK
1: $0.706
2,800In Stock
New Product

Mfr. Part #
B57359V6473F260

Mouser Part #
871-B57359V6473F260

New Product

TDK

NTC Thermistors SMD NTC Thermistor 0603 47kOhm 1% B-4131 soft

Datasheet

2,800In Stock

Cut Tape

$0.706

$0.547

$0.471

$0.387

Reel

$0.297

View

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

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

AQ3118-02JTG
Littelfuse
1: $1.79
2,663In Stock
New Product

Mfr. Part #
AQ3118-02JTG

Mouser Part #
576-AQ3118-02JTG

New Product

Littelfuse

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

Learn More

Datasheet

2,663In Stock

Cut Tape

$1.79

$1.12

$0.737

$0.575

Reel

$0.397

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: $0.864
2,312In Stock
New Product

Mfr. Part #
SMBJ85CA-E

Mouser Part #
576-SMBJ85CAE

New Product

Littelfuse

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

Datasheet

2,312In Stock

Cut Tape

$0.864

$0.449

$0.334

$0.252

Reel

$0.135

View

Min.: 1
Mult.: 1

: 3,000

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

511KH10-AT
YAGEO
1: $1.34
2,650In Stock
400On Order
New Product

Mfr. Part #
511KH10-AT

Mouser Part #
603-511KH10-AT

New Product

YAGEO

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

Learn More

Datasheet

2,650In Stock

400On Order

$1.34

$0.804

$0.514

$0.477

View

Min.: 1
Mult.: 1

Industrial Surge Protectors SFP2-1S-1-10A-120AC-UT

1292457
Phoenix Contact
1: $324.82
1In Stock
9On Order
New Product

Mfr. Part #
1292457

Mouser Part #
651-1292457

New Product

Phoenix Contact

Industrial Surge Protectors SFP2-1S-1-10A-120AC-UT

Learn More

Datasheet

1In Stock

9On Order

$324.82

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes ESD 5V BI SOD323

CDSOD323-T12C-Q
Bourns
1: $1.71
2,081In Stock
New Product

Mfr. Part #
CDSOD323-T12C-Q

Mouser Part #
652-CDSOD323-T12C-Q

New Product

Bourns

ESD Protection Diodes / TVS Diodes ESD 5V BI SOD323

Learn More

Datasheet

2,081In Stock

Cut Tape

$1.71

$1.07

$0.70

$0.541

Reel

$0.428

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes TVS 7V/12V AEC-Q101

CDSOT23-SM712-Q
Bourns
1: $2.17
1,418In Stock
24,000On Order
New Product

Mfr. Part #
CDSOT23-SM712-Q

Mouser Part #
652-CDSOT23-SM712-Q

New Product

Bourns

ESD Protection Diodes / TVS Diodes TVS 7V/12V AEC-Q101

Learn More

Datasheet

1,418In Stock

24,000On Order

Cut Tape

$2.17

$1.21

$0.91

$0.711

Reel

$0.521

View

Min.: 1
Mult.: 1

: 3,000

Industrial & Electrical Fuses POWrFuse BD 1000Vdc 450A

PF-1NH100E450B2
Bourns
1: $525.27
4In Stock
New Product

Mfr. Part #
PF-1NH100E450B2

Mouser Part #
652-PF-1NH100E450B2

New Product

Bourns

Industrial & Electrical Fuses POWrFuse BD 1000Vdc 450A

Learn More

Datasheet

4In Stock

$525.27

$417.67

$384.90

Min.: 1
Mult.: 1

Industrial & Electrical Fuses POWrFuse BD 1000Vdc 500A

PF-1NH100E500B2
Bourns
1: $525.27
4In Stock
New Product

Mfr. Part #
PF-1NH100E500B2

Mouser Part #
652-PF-1NH100E500B2

New Product

Bourns

Industrial & Electrical Fuses POWrFuse BD 1000Vdc 500A

Learn More

Datasheet

4In Stock

$525.27

$417.67

$384.90

Min.: 1
Mult.: 1

Industrial & Electrical Fuses Specialty Fuses POWR-SPEED SQB ESR 1500VDC 3XL DIN 315A

ESR3XLDB0315XI
Littelfuse
1: $834.83
3In Stock
New Product

Mfr. Part #
ESR3XLDB0315XI

Mouser Part #
576-ESR3XLDB0315XI

New Product

Littelfuse

Industrial & Electrical Fuses Specialty Fuses POWR-SPEED SQB ESR 1500VDC 3XL DIN 315A

Learn More

Datasheet

3In Stock

$834.83

$685.48

$623.97

Quote

Min.: 1
Mult.: 1

Industrial & Electrical Fuses Specialty Fuses POWR-SPEED SQB ESR 1500VDC 3XL BOLT 500A

ESR3XLUB0500XI
Littelfuse
1: $876.24
3In Stock
New Product

Mfr. Part #
ESR3XLUB0500XI

Mouser Part #
576-ESR3XLUB0500XI

New Product

Littelfuse

Industrial & Electrical Fuses Specialty Fuses POWR-SPEED SQB ESR 1500VDC 3XL BOLT 500A

Learn More

Datasheet

3In Stock

$876.24

$745.82

$668.71

Quote

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes 4V, 0.55pF, 20A, SOD882

SC4340L-01ETG
Littelfuse
1: $0.893
6,422In Stock
New Product

Mfr. Part #
SC4340L-01ETG

Mouser Part #
576-SC4340L-01ETG

New Product

Littelfuse

ESD Protection Diodes / TVS Diodes 4V, 0.55pF, 20A, SOD882

Learn More

6,422In Stock

Cut Tape

$0.893

$0.541

$0.346

$0.287

Reel

$0.16

View

Min.: 1
Mult.: 1

: 10,000

ESD Protection Diodes / TVS Diodes "20 V, 50pF, 5A,"

SP1120-01WTG
Littelfuse
1: $0.389
7,629In Stock
New Product

Mfr. Part #
SP1120-01WTG

Mouser Part #
576-SP1120-01WTG

New Product

Littelfuse

ESD Protection Diodes / TVS Diodes "20 V, 50pF, 5A,"

Learn More

7,629In Stock

Cut Tape

$0.389

$0.235

$0.184

$0.176

View

Reel

$0.127

Min.: 1
Mult.: 1

: 10,000

ESD Protection Diodes / TVS Diodes 4V, 0.45pF, 20A, Flipchip

SP4340L-01WTG
Littelfuse
1: $0.432
7,606In Stock
New Product

Mfr. Part #
SP4340L-01WTG

Mouser Part #
576-SP4340L-01WTG

New Product

Littelfuse

ESD Protection Diodes / TVS Diodes 4V, 0.45pF, 20A, Flipchip

Learn More

7,606In Stock

Cut Tape

$0.432

$0.268

$0.212

$0.20

View

Reel

$0.145

Min.: 1
Mult.: 1

: 10,000

Circuit Protection

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