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

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.
More...

Please view our selection of circuit protection devices below.

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

Types of Circuit Protection

List Images

Results: 361,007

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

Filter by

.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 #

Connectorised Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, 1.2GHz - 1.6GHz, 10W, IP67, 6 V Max., 175uJ, 15kA, Avalanche Diode

GPS+06NFF
PolyPhaser
1: $191.43
5In Stock
New Product

Mfr. Part No.
GPS+06NFF

Mouser Part No
44-GPS+06NFF

New Product

PolyPhaser

Connectorised Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, 1.2GHz - 1.6GHz, 10W, IP67, 6 V Max., 175uJ, 15kA, Avalanche Diode

Learn More

Datasheet

5In Stock

$191.43

$181.56

Min.: 1
Mult.: 1

Connectorised Surge Protectors 75 Ohm Type F F/F Coaxial RF Surge Protector, 4MHz - 900MHz, DC Block, 100W, 50kA, Blocking Cap, Bracket Up, Hole Mount

IS-75F-C1
PolyPhaser
1: $153.15
4In Stock
New Product

Mfr. Part No.
IS-75F-C1

Mouser Part No
44-IS-75F-C1

New Product

PolyPhaser

Connectorised Surge Protectors 75 Ohm Type F F/F Coaxial RF Surge Protector, 4MHz - 900MHz, DC Block, 100W, 50kA, Blocking Cap, Bracket Up, Hole Mount

Learn More

Datasheet

4In Stock

$153.15

$145.26

Min.: 1
Mult.: 1

Connectorised 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: $131.59
14In Stock
5Expected 29/5/2026
New Product

Mfr. Part No.
IS-B50LN-C0

Mouser Part No
44-IS-B50LN-C0

New Product

PolyPhaser

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

Learn More

Datasheet

14In Stock

5Expected 29/5/2026

$131.59

$124.82

Min.: 1
Mult.: 1

Surge Protection Accessories IX Series Pole Mount Kit

IX-POLE-KIT
PolyPhaser
1: $94.19
8In Stock
New Product

Mfr. Part No.
IX-POLE-KIT

Mouser Part No
44-IX-POLE-KIT

New Product

PolyPhaser

Surge Protection Accessories IX Series Pole Mount Kit

Datasheet

8In Stock

$94.19

$89.17

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: $67.96
8In Stock
New Product

Mfr. Part No.
TK-2

Mouser Part No
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

Learn More

Datasheet

8In Stock

$67.96

$63.41

$60.74

Min.: 1
Mult.: 1

Connectorised Surge Protectors 4.3-10 F/F Bulkhead Coaxial RF Surge Protector, 698MHz - 2.7GHz, DC Block, 500W, IP67, .005uJ, 40kA, Filter, Low PIM

TSX-4310FF-P
PolyPhaser
1: $252.13
8In Stock
New Product

Mfr. Part No.
TSX-4310FF-P

Mouser Part No
44-TSX-4310FF-P

New Product

PolyPhaser

Connectorised Surge Protectors 4.3-10 F/F Bulkhead Coaxial RF Surge Protector, 698MHz - 2.7GHz, DC Block, 500W, IP67, .005uJ, 40kA, Filter, Low PIM

Learn More

Datasheet

8In Stock

$252.13

$241.47

Min.: 1
Mult.: 1

Connectorised 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: $320.12
4In Stock
New Product

Mfr. Part No.
TSX-DFM

Mouser Part No
44-TSX-DFM

New Product

PolyPhaser

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

Learn More

Datasheet

4In Stock

$320.12

$306.58

Min.: 1
Mult.: 1

Connectorised 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: $193.82
6In Stock
New Product

Mfr. Part No.
TSX-NFM

Mouser Part No
44-TSX-NFM

New Product

PolyPhaser

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

Learn More

Datasheet

6In Stock

$193.82

$183.83

Min.: 1
Mult.: 1

Connectorised 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: $401.25
3In Stock
New Product

Mfr. Part No.
VUF50NHP-MA

Mouser Part No
44-VUF50NHP-MA

New Product

PolyPhaser

Connectorised 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

$401.25

$384.27

Min.: 1
Mult.: 1

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

EM12D-TIO-000-DC24V-40A-E
E-T-A
1: $185.59
5In Stock
New Product

Mfr. Part No.
EM12D-TIO-000-DC24V-40A-E

Mouser Part No
457-EM12DTIO24V4AE

New Product

E-T-A

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

Datasheet

5In Stock

$185.59

$157.54

$146.41

Min.: 1
Mult.: 1

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

EM12D-TMB-000-DC24V-40A-E
E-T-A
1: $252.54
3In Stock
New Product

Mfr. Part No.
EM12D-TMB-000-DC24V-40A-E

Mouser Part No
457-EM12DTMB24V4AE

New Product

E-T-A

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

Datasheet

3In Stock

$252.54

$245.54

$218.98

$203.50

Min.: 1
Mult.: 1

Industrial Surge Protectors VAL-SPP-T2-335-1+0-UT-R

1466578
Phoenix Contact
1: $126.49
7In Stock
New Product

Mfr. Part No.
1466578

Mouser Part No
651-1466578

New Product

Phoenix Contact

Industrial Surge Protectors VAL-SPP-T2-335-1+0-UT-R

Learn More

Datasheet

7In Stock

$126.49

Min.: 1
Mult.: 1

Circuit Breakers PTCB TM1 3A F2 NO P

1509522
Phoenix Contact
1: $39.75
40In Stock
New Product

Mfr. Part No.
1509522

Mouser Part No
651-1509522

New Product

Phoenix Contact

Circuit Breakers PTCB TM1 3A F2 NO P

Learn More

Datasheet

40In Stock

$39.75

Min.: 1
Mult.: 1

Circuit Breakers PTCB TM1 4A M1 NO P

1575566
Phoenix Contact
1: $39.75
22In Stock
New Product

Mfr. Part No.
1575566

Mouser Part No
651-1575566

New Product

Phoenix Contact

Circuit Breakers PTCB TM1 4A M1 NO P

Learn More

Datasheet

22In Stock

$39.75

Min.: 1
Mult.: 1

Industrial Surge Protectors VAL-US-SPP-120/65/1+0-R

1790752
Phoenix Contact
1: $137.44
7In Stock
New Product

Mfr. Part No.
1790752

Mouser Part No
651-1790752

New Product

Phoenix Contact

Industrial Surge Protectors VAL-US-SPP-120/65/1+0-R

Learn More

Datasheet

7In Stock

$137.44

Min.: 1
Mult.: 1

Industrial Surge Protectors VAL-US-SPP-240/50-P

1790761
Phoenix Contact
1: $76.45
7In Stock
New Product

Mfr. Part No.
1790761

Mouser Part No
651-1790761

New Product

Phoenix Contact

Industrial Surge Protectors VAL-US-SPP-240/50-P

Learn More

Datasheet

7In Stock

$76.45

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes

2KDFN12A-M3/H
Vishay Semiconductors
1: $1.68
3,000In Stock
New Product

Mfr. Part No.
2KDFN12A-M3/H

Mouser Part No
78-2KDFN12A-M3/H

New Product

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes

Learn More

Datasheet

3,000In Stock

$1.68

$1.06

$0.694

$0.537

View

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes 3KW,13V 5%, DFN6546A BIDIR TVS

3KDFN13CA-M3/H
Vishay Semiconductors
1: $2.18
3,000In Stock
New Product

Mfr. Part No.
3KDFN13CA-M3/H

Mouser Part No
78-3KDFN13CA-M3/H

New Product

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 3KW,13V 5%, DFN6546A BIDIR TVS

Learn More

Datasheet

3,000In Stock

Cut Tape

$2.18

$1.39

$0.919

$0.72

Reel

$0.552

View

Min.: 1
Mult.: 1

: 1,500

ESD Protection Diodes / TVS Diodes 3KW,16V 5%, DFN6546A BIDIR TVS

3KDFN16CA-M3/H
Vishay Semiconductors
1: $2.18
3,000In Stock
New Product

Mfr. Part No.
3KDFN16CA-M3/H

Mouser Part No
78-3KDFN16CA-M3/H

New Product

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 3KW,16V 5%, DFN6546A BIDIR TVS

Learn More

Datasheet

3,000In Stock

Cut Tape

$2.18

$1.39

$0.919

$0.72

Reel

$0.552

View

Min.: 1
Mult.: 1

: 1,500

ESD Protection Diodes / TVS Diodes Diode, TVS, uni-dir, 1000W, 9.0V, 5%, SMB (DO-214AA), auto-grade

SMB10J9.0AHM3_B/I
Vishay Semiconductors
1: $1.43
2,240In Stock
New Product

Mfr. Part No.
SMB10J9.0AHM3_B/I

Mouser Part No
78-SMB10J9.0AHM3_B/I

New Product

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes Diode, TVS, uni-dir, 1000W, 9.0V, 5%, SMB (DO-214AA), auto-grade

Learn More

Datasheet

2,240In Stock

Cut Tape

$1.43

$0.901

$0.589

$0.455

Reel

$0.357

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,200

ESD Protection Diodes / TVS Diodes 400W,33V5%,SMFBIDIRTVS

T4F33CAHM3/I
Vishay Semiconductors
1: $0.667
10,000In Stock
New Product

Mfr. Part No.
T4F33CAHM3/I

Mouser Part No
78-T4F33CAHM3/I

New Product

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 400W,33V5%,SMFBIDIRTVS

Learn More

Datasheet

10,000In Stock

Cut Tape

$0.667

$0.457

$0.259

$0.204

Reel

$0.125

View

Min.: 1
Mult.: 1

: 10,000

ESD Protection Diodes / TVS Diodes ESD PROTECTION DIODE SOT323

VLIN26A1-03GHE3A08
Vishay
1: $0.542
8,759In Stock
New Product

Mfr. Part No.
VLIN26A1-03GHE3A08

Mouser Part No
78-VLIN26A1-03HE3A08

New Product

Vishay

ESD Protection Diodes / TVS Diodes ESD PROTECTION DIODE SOT323

Datasheet

8,759In Stock

Cut Tape

$0.542

$0.363

$0.214

$0.161

Reel

$0.12

View

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes ESD Protection

PEC3827CS-AU_R1_007A1
Panjit
1: $0.626
3,500In Stock
New Product

Mfr. Part No.
PEC3827CS-AU_R1_007A1

Mouser Part No
241-PEC3827CSAUR17A1

New Product

Panjit

ESD Protection Diodes / TVS Diodes ESD Protection

Learn More

Datasheet

3,500In Stock

Cut Tape

$0.626

$0.431

$0.211

$0.177

Reel

$0.095

View

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

Connectorised Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, 2.0GHz - 6.0GHz, DC Block 10W, 10kA, Blocking Capacitor

111-1010
PolyPhaser
1: $162.71
8In Stock
New Product

Mfr. Part No.
111-1010

Mouser Part No
44-111-1010

New Product

PolyPhaser

Connectorised Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, 2.0GHz - 6.0GHz, DC Block 10W, 10kA, Blocking Capacitor

Datasheet

8In Stock

$162.71

$154.33

Min.: 1
Mult.: 1

Surge Protection Accessories Hardware Kit, 108-1118B

9100-0453-A
PolyPhaser
1: $35.58
22In Stock
5Expected 29/5/2026
New Product

Mfr. Part No.
9100-0453-A

Mouser Part No
44-9100-0453-A

New Product

PolyPhaser

Surge Protection Accessories Hardware Kit, 108-1118B

Datasheet

22In Stock

5Expected 29/5/2026

$35.58

$30.20

$28.84

$25.80

Min.: 1
Mult.: 1

Circuit Protection

Types of Circuit Protection

Customer Service Office

Company

Resources

Support