.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: 361,067

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 #

Connectorized Surge Protectors Type N M/F Coaxial RF Surge Protector, 800MHz - 2.5GHz, 300W, IP67, 36 V Max., 1.5mJ, 20kA, Hybrid, Bracket Down, Hole Mount

DGXZ+36NMNF-A
PolyPhaser
1: $237.97
9In Stock
New Product

Mfr. Part #
DGXZ+36NMNF-A

Mouser Part #
44-DGXZ+36NMNF-A

New Product

PolyPhaser

Connectorized Surge Protectors Type N M/F Coaxial RF Surge Protector, 800MHz - 2.5GHz, 300W, IP67, 36 V Max., 1.5mJ, 20kA, Hybrid, Bracket Down, Hole Mount

Learn More

Datasheet

9In Stock

$237.97

$225.72

Min.: 1
Mult.: 1

Connectorized 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: $198.32
5In Stock
New Product

Mfr. Part #
GPS+06NFF

Mouser Part #
44-GPS+06NFF

New Product

PolyPhaser

Connectorized 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

$198.32

$188.09

Min.: 1
Mult.: 1

Connectorized 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: $158.66
4In Stock
New Product

Mfr. Part #
IS-75F-C1

Mouser Part #
44-IS-75F-C1

New Product

PolyPhaser

Connectorized 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

$158.66

$150.48

Min.: 1
Mult.: 1

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: $136.32
14In Stock
5Expected 2026-05-29
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

Learn More

Datasheet

14In Stock

5Expected 2026-05-29

$136.32

$129.31

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

Learn More

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

Learn More

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
6In 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

Learn More

Datasheet

6In 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: $415.68
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

$415.68

$398.09

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
5In 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

5In 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

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

1466578
Phoenix Contact
1: $131.04
7In Stock
New Product

Mfr. Part #
1466578

Mouser Part #
651-1466578

New Product

Phoenix Contact

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

Learn More

Datasheet

7In Stock

$131.04

Min.: 1
Mult.: 1

Circuit Breakers PTCB TM1 3A F2 NO P

1509522
Phoenix Contact
1: $41.18
40In Stock
New Product

Mfr. Part #
1509522

Mouser Part #
651-1509522

New Product

Phoenix Contact

Circuit Breakers PTCB TM1 3A F2 NO P

Learn More

Datasheet

40In Stock

$41.18

Min.: 1
Mult.: 1

Circuit Breakers PTCB TM1 4A M1 NO P

1575566
Phoenix Contact
1: $41.18
22In Stock
New Product

Mfr. Part #
1575566

Mouser Part #
651-1575566

New Product

Phoenix Contact

Circuit Breakers PTCB TM1 4A M1 NO P

Learn More

Datasheet

22In Stock

$41.18

Min.: 1
Mult.: 1

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

1790752
Phoenix Contact
1: $142.39
7In Stock
New Product

Mfr. Part #
1790752

Mouser Part #
651-1790752

New Product

Phoenix Contact

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

Learn More

Datasheet

7In Stock

$142.39

Min.: 1
Mult.: 1

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

1790761
Phoenix Contact
1: $79.20
6In Stock
New Product

Mfr. Part #
1790761

Mouser Part #
651-1790761

New Product

Phoenix Contact

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

Learn More

Datasheet

6In Stock

$79.20

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes

2KDFN12A-M3/H
Vishay Semiconductors
1: $1.74
3,000In Stock
New Product

Mfr. Part #
2KDFN12A-M3/H

Mouser Part #
78-2KDFN12A-M3/H

New Product

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes

Learn More

Datasheet

3,000In Stock

$1.74

$1.10

$0.719

$0.556

View

Min.: 1
Mult.: 1

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

3KDFN13CA-M3/H
Vishay Semiconductors
1: $2.26
3,000In Stock
New Product

Mfr. Part #
3KDFN13CA-M3/H

Mouser Part #
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

$2.26

$1.44

$0.952

$0.746

Reel

$0.572

View

Min.: 1
Mult.: 1

: 1,500

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

3KDFN16CA-M3/H
Vishay Semiconductors
1: $2.26
3,000In Stock
New Product

Mfr. Part #
3KDFN16CA-M3/H

Mouser Part #
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

$2.26

$1.44

$0.952

$0.746

Reel

$0.572

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: $1.48
2,240In Stock
New Product

Mfr. Part #
SMB10J9.0AHM3_B/I

Mouser Part #
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

$1.48

$0.933

$0.611

$0.471

Reel

$0.37

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,200

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

T4F33CAHM3/I
Vishay Semiconductors
1: $0.691
10,000In Stock
New Product

Mfr. Part #
T4F33CAHM3/I

Mouser Part #
78-T4F33CAHM3/I

New Product

Vishay Semiconductors

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

Learn More

Datasheet

10,000In Stock

Cut Tape

$0.691

$0.474

$0.268

$0.212

Reel

$0.13

View

Min.: 1
Mult.: 1

: 10,000

ESD Protection Diodes / TVS Diodes ESD PROTECTION DIODE SOT323

VLIN26A1-03GHE3A08
Vishay
1: $0.562
8,759In Stock
New Product

Mfr. Part #
VLIN26A1-03GHE3A08

Mouser Part #
78-VLIN26A1-03HE3A08

New Product

Vishay

ESD Protection Diodes / TVS Diodes ESD PROTECTION DIODE SOT323

Datasheet

8,759In Stock

Cut Tape

$0.562

$0.376

$0.222

$0.167

Reel

$0.124

View

Min.: 1
Mult.: 1

: 3,000

Surge Protection Accessories Flange to Bulkhead Type 4.3-10 Adapter Kit

BF4310
PolyPhaser
1: $73.92
8In Stock
New Product

Mfr. Part #
BF4310

Mouser Part #
44-BF4310

New Product

PolyPhaser

Surge Protection Accessories Flange to Bulkhead Type 4.3-10 Adapter Kit

Learn More

Datasheet

8In Stock

$73.92

$69.39

$67.16

Min.: 1
Mult.: 1

Surge Protection Accessories Kit Flange to Bulkhead DIN Adapter

BFD
PolyPhaser
1: $56.95
30In Stock
New Product

Mfr. Part #
BFD

Mouser Part #
44-BFD

New Product

PolyPhaser

Surge Protection Accessories Kit Flange to Bulkhead DIN Adapter

Learn More

Datasheet

30In Stock

$56.95

$53.14

$50.92

$50.90

Quote

Min.: 1
Mult.: 1

Connectorized Surge Protectors Type N F/F Coaxial RF Surge Protector, 800MHz - 2.5GHz, 300W, IP67, 24 V Max., 25uJ, 20kA, Hybrid, Bracket Down, Hole Mount

DGXJ+24NFNF-A
PolyPhaser
1: $267.72
1In Stock
New Product

Mfr. Part #
DGXJ+24NFNF-A

Mouser Part #
44-DGXJ+24NFNF-A

New Product

PolyPhaser

Connectorized Surge Protectors Type N F/F Coaxial RF Surge Protector, 800MHz - 2.5GHz, 300W, IP67, 24 V Max., 25uJ, 20kA, Hybrid, Bracket Down, Hole Mount

Learn More

Datasheet

1In Stock

$267.72

$253.94

Min.: 1
Mult.: 1

Circuit Protection

Types of Circuit Protection

Mouser Electronics®

Company

Resources

Support