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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: 361,225

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Part #

Connectorized Surge Protectors Positive Train Control (PTC) Filter, Railroad RF Band Pass with Surge Protector, 160 MHz to 163 MHz, Type N F/F, 100W CW, IP67, 50uJ, 10kA

RRF-160-NFF
PolyPhaser
1: $536.07
1In Stock
New Product

Mfr. Part #
RRF-160-NFF

Mouser Part #
44-RRF-160-NFF

New Product

PolyPhaser

Connectorized Surge Protectors Positive Train Control (PTC) Filter, Railroad RF Band Pass with Surge Protector, 160 MHz to 163 MHz, Type N F/F, 100W CW, IP67, 50uJ, 10kA

Datasheet

1In Stock

$536.07

$513.40

Min.: 1
Mult.: 1

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

TSX-NFF-P
PolyPhaser
1: $218.15
8In Stock
New Product

Mfr. Part #
TSX-NFF-P

Mouser Part #
44-TSX-NFF-P

New Product

PolyPhaser

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

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Datasheet

8In Stock

$218.15

$206.91

Min.: 1
Mult.: 1

Circuit Breakers PTCB TM1 6A M1 NO P

1575572
Phoenix Contact
1: $65.95
18In Stock
28Expected 2026-06-01
New Product

Mfr. Part #
1575572

Mouser Part #
651-1575572

New Product

Phoenix Contact

Circuit Breakers PTCB TM1 6A M1 NO P

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Datasheet

18In Stock

28Expected 2026-06-01

$65.95

$47.19

Min.: 1
Mult.: 1

Circuit Breakers PTCB TM1 12A M1 NO P

1575581
Phoenix Contact
1: $64.05
40In Stock
New Product

Mfr. Part #
1575581

Mouser Part #
651-1575581

New Product

Phoenix Contact

Circuit Breakers PTCB TM1 12A M1 NO P

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Datasheet

40In Stock

$64.05

$60.84

Min.: 1
Mult.: 1

Circuit Breakers PTCB TM1 16A M1 NO P

1575586
Phoenix Contact
1: $64.05
39In Stock
New Product

Mfr. Part #
1575586

Mouser Part #
651-1575586

New Product

Phoenix Contact

Circuit Breakers PTCB TM1 16A M1 NO P

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Datasheet

39In Stock

$64.05

$60.84

Min.: 1
Mult.: 1

Industrial Surge Protectors VAL-US-SPP-240/50/1+0-R

1790763
Phoenix Contact
1: $142.63
7In Stock
New Product

Mfr. Part #
1790763

Mouser Part #
651-1790763

New Product

Phoenix Contact

Industrial Surge Protectors VAL-US-SPP-240/50/1+0-R

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Datasheet

7In Stock

$142.63

$131.04

Min.: 1
Mult.: 1

Industrial Surge Protectors VAL-US-SPP-277/65-P

1790777
Phoenix Contact
1: $103.68
5In Stock
4Expected 2026-06-12
New Product

Mfr. Part #
1790777

Mouser Part #
651-1790777

New Product

Phoenix Contact

Industrial Surge Protectors VAL-US-SPP-277/65-P

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Datasheet

5In Stock

4Expected 2026-06-12

$103.68

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes

2KDFN15CA-M3/H
Vishay Semiconductors
1: $1.71
3,000In Stock
New Product

Mfr. Part #
2KDFN15CA-M3/H

Mouser Part #
78-2KDFN15CA-M3/H

New Product

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes

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Datasheet

3,000In Stock

$1.71

$1.24

$0.845

$0.667

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Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes

2KDFN20A-M3/H
Vishay Semiconductors
1: $1.74
3,000In Stock
New Product

Mfr. Part #
2KDFN20A-M3/H

Mouser Part #
78-2KDFN20A-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

2KDFN22A-M3/H
Vishay Semiconductors
1: $1.74
3,000In Stock
New Product

Mfr. Part #
2KDFN22A-M3/H

Mouser Part #
78-2KDFN22A-M3/H

New Product

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes

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Datasheet

3,000In Stock

$1.74

$1.10

$0.719

$0.556

View

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes

2KDFN22CA-M3/H
Vishay Semiconductors
1: $1.71
3,000In Stock
New Product

Mfr. Part #
2KDFN22CA-M3/H

Mouser Part #
78-2KDFN22CA-M3/H

New Product

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes

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Datasheet

3,000In Stock

$1.71

$1.24

$0.845

$0.667

View

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes 3KW,12V 5%, DFN6546A TVS

3KDFN12A-M3/H
Vishay Semiconductors
1: $1.63
3,000In Stock
New Product

Mfr. Part #
3KDFN12A-M3/H

Mouser Part #
78-3KDFN12A-M3/H

New Product

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 3KW,12V 5%, DFN6546A TVS

Datasheet

3,000In Stock

Cut Tape

$1.63

$1.33

$1.03

$0.848

Reel

$0.661

View

Min.: 1
Mult.: 1

: 1,500

ESD Protection Diodes / TVS Diodes 3KW,20V 5%, DFN6546A TVS

3KDFN20A-M3/H
Vishay Semiconductors
1: $1.63
3,000In Stock
New Product

Mfr. Part #
3KDFN20A-M3/H

Mouser Part #
78-3KDFN20A-M3/H

New Product

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 3KW,20V 5%, DFN6546A TVS

Datasheet

3,000In Stock

Cut Tape

$1.63

$1.33

$1.03

$0.848

Reel

$0.661

View

Min.: 1
Mult.: 1

: 1,500

ESD Protection Diodes / TVS Diodes Diode, TVS, uni-dir, 1000W, 11V, 5%, SMB (DO-214AA), auto-grade

SMB10J11AHM3_B/I
Vishay Semiconductors
1: $1.48
2,240In Stock
New Product

Mfr. Part #
SMB10J11AHM3_B/I

Mouser Part #
78-SMB10J11AHM3_B/I

New Product

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes Diode, TVS, uni-dir, 1000W, 11V, 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 Diode, TVS, uni-dir, 1000W, 9.0V, 5%, SMB (DO-214AA), auto-grade

SMB10J9.0AHE3_B/I
Vishay Semiconductors
1: $1.48
2,240In Stock
New Product

Mfr. Part #
SMB10J9.0AHE3_B/I

Mouser Part #
78-SMB10J9.0AHE3_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,47V5%,SMFBIDIRTVS

T4F47CAHM3/I
Vishay Semiconductors
1: $0.691
6,930In Stock
New Product

Mfr. Part #
T4F47CAHM3/I

Mouser Part #
78-T4F47CAHM3/I

New Product

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 400W,47V5%,SMFBIDIRTVS

Learn More

Datasheet

6,930In Stock

Cut Tape

$0.691

$0.474

$0.268

$0.212

Reel

$0.13

View

Min.: 1
Mult.: 1

: 10,000

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

BF4310
PolyPhaser
1: $73.92
9In 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

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Datasheet

9In 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

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Datasheet

1In Stock

$267.72

$253.94

Min.: 1
Mult.: 1

Connectorized Surge Protectors Type N/SMA F/F Bulkhead Coaxial RF Surge Protector, 700MHz - 2.7GHz, DC Block, 300W, IP67, .5uJ, 18kA, Filter

DSXL-NS
PolyPhaser
1: $242.94
9In Stock
New Product

Mfr. Part #
DSXL-NS

Mouser Part #
44-DSXL-NS

New Product

PolyPhaser

Connectorized Surge Protectors Type N/SMA F/F Bulkhead Coaxial RF Surge Protector, 700MHz - 2.7GHz, DC Block, 300W, IP67, .5uJ, 18kA, Filter

Datasheet

9In Stock

$242.94

$230.43

Min.: 1
Mult.: 1

Connectorized Surge Protectors 7/16 F/M Bulkhead Coaxial RF Surge Protector, 698MHz - 2.7GHz, 1.5kW, IP67, 30 V Max., 25mJ, 30kA, Filter, Low PIM -155 dBc

ESXDC-DFM
PolyPhaser
1: $268.03
4In Stock
New Product

Mfr. Part #
ESXDC-DFM

Mouser Part #
44-ESXDC-DFM

New Product

PolyPhaser

Connectorized Surge Protectors 7/16 F/M Bulkhead Coaxial RF Surge Protector, 698MHz - 2.7GHz, 1.5kW, IP67, 30 V Max., 25mJ, 30kA, Filter, Low PIM -155 dBc

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Datasheet

4In Stock

$268.03

$256.68

Min.: 1
Mult.: 1

Surge Protection Accessories Ground Strap Adapter Kit for SX Series N Connectors

GSA-KIT-N
PolyPhaser
1: $87.29
24In Stock
New Product

Mfr. Part #
GSA-KIT-N

Mouser Part #
44-GSA-KIT-N

New Product

PolyPhaser

Surge Protection Accessories Ground Strap Adapter Kit for SX Series N Connectors

Learn More

Datasheet

24In Stock

$87.29

$82.64

Min.: 1
Mult.: 1

Connectorized Surge Protectors TNC F/M Bulkhead Coaxial RF Surge Protector, DC - 7GHz, DC Pass, 90W, IP67, 4mJ, 20kA, Gas Discharge Tube

GT-TFM-AL
PolyPhaser
1: $136.32
5In Stock
New Product

Mfr. Part #
GT-TFM-AL

Mouser Part #
44-GT-TFM-AL

New Product

PolyPhaser

Connectorized Surge Protectors TNC F/M Bulkhead Coaxial RF Surge Protector, DC - 7GHz, DC Pass, 90W, IP67, 4mJ, 20kA, Gas Discharge Tube

Learn More

Datasheet

5In Stock

$136.32

$129.31

Min.: 1
Mult.: 1

Connectorized Surge Protectors Type N M/F Coaxial RF Surge Protector, 125MHz - 1GHz, DC Block, 375W, 220uJ, 50kA, Blocking Cap, Bracket Up, Hole Mount

IS-50NX-C2-MA
PolyPhaser
1: $122.69
4In Stock
3Expected 2026-06-23
New Product

Mfr. Part #
IS-50NX-C2-MA

Mouser Part #
44-IS-50NX-C2-MA

New Product

PolyPhaser

Connectorized Surge Protectors Type N M/F Coaxial RF Surge Protector, 125MHz - 1GHz, DC Block, 375W, 220uJ, 50kA, Blocking Cap, Bracket Up, Hole Mount

Learn More

Datasheet

4In Stock

3Expected 2026-06-23

$122.69

$116.37

Min.: 1
Mult.: 1

Connectorized Surge Protectors 7/16 F/F Bulkhead Coaxial RF Surge Protector, DC - 2.7GHz, 400W, IP67, 60 V Max., 420uJ, 20kA, Gas Discharge Tube

RGT-DFF
PolyPhaser
1: $178.47
6In Stock
New Product

Mfr. Part #
RGT-DFF

Mouser Part #
44-RGT-DFF

New Product

PolyPhaser

Connectorized Surge Protectors 7/16 F/F Bulkhead Coaxial RF Surge Protector, DC - 2.7GHz, 400W, IP67, 60 V Max., 420uJ, 20kA, Gas Discharge Tube

Learn More

Datasheet

6In Stock

$178.47

$169.29

Min.: 1
Mult.: 1

Circuit Protection

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