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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 #

Industrial Surge Protectors VAL-US-SPP-120/50-P

1790743
Phoenix Contact
1: $100.86
5In Stock
4Expected 2026-06-04
New Product

Mfr. Part #
1790743

Mouser Part #
651-1790743

New Product

Phoenix Contact

Industrial Surge Protectors VAL-US-SPP-120/50-P

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Datasheet

5In Stock

4Expected 2026-06-04

$100.86

Min.: 1
Mult.: 1

Industrial Surge Protectors VAL-US-SPP-120/50/1+0-R

1790744
Phoenix Contact
1: $134.97
6In Stock
New Product

Mfr. Part #
1790744

Mouser Part #
651-1790744

New Product

Phoenix Contact

Industrial Surge Protectors VAL-US-SPP-120/50/1+0-R

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Datasheet

6In Stock

$134.97

Min.: 1
Mult.: 1

Industrial Surge Protectors VAL-US-SPP-120/65-P

1790751
Phoenix Contact
1: $103.68
7In Stock
New Product

Mfr. Part #
1790751

Mouser Part #
651-1790751

New Product

Phoenix Contact

Industrial Surge Protectors VAL-US-SPP-120/65-P

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Datasheet

7In Stock

$103.68

Min.: 1
Mult.: 1

Industrial Surge Protectors VAL-US-SPP-277/50/3+0-R

1790773
Phoenix Contact
1: $375.84
2In Stock
New Product

Mfr. Part #
1790773

Mouser Part #
651-1790773

New Product

Phoenix Contact

Industrial Surge Protectors VAL-US-SPP-277/50/3+0-R

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Datasheet

2In Stock

$375.84

Min.: 1
Mult.: 1

Resettable Fuses - PPTC 2920 Resettable SMD PPTC 0.35A/72V

MF-LSMF035/72X-2
Bourns
1: $1.44
2,797In Stock
New Product

Mfr. Part #
MF-LSMF035/72X-2

Mouser Part #
652-MF-LSMF035/72X-2

New Product

Bourns

Resettable Fuses - PPTC 2920 Resettable SMD PPTC 0.35A/72V

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Datasheet

2,797In Stock

Cut Tape

$1.44

$1.09

$0.825

$0.799

View

Reel

$0.492

Min.: 1
Mult.: 1

: 4,000

Resettable Fuses - PPTC 2920 Resettable SMD PPTC 0.5A/72V

MF-LSMF050/72X-2
Bourns
1: $1.44
2,742In Stock
New Product

Mfr. Part #
MF-LSMF050/72X-2

Mouser Part #
652-MF-LSMF050/72X-2

New Product

Bourns

Resettable Fuses - PPTC 2920 Resettable SMD PPTC 0.5A/72V

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Datasheet

2,742In Stock

Cut Tape

$1.44

$1.09

$0.825

$0.799

View

Reel

$0.492

Min.: 1
Mult.: 1

: 4,000

Resettable Fuses - PPTC 2920 Resettable SMD PPTC 2.0A/33V

MF-LSMF200/33X-2
Bourns
1: $1.76
2,678In Stock
New Product

Mfr. Part #
MF-LSMF200/33X-2

Mouser Part #
652-MF-LSMF200/33X-2

New Product

Bourns

Resettable Fuses - PPTC 2920 Resettable SMD PPTC 2.0A/33V

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Datasheet

2,678In Stock

Cut Tape

$1.76

$1.31

$0.982

$0.96

View

Reel

$0.586

Min.: 1
Mult.: 1

: 4,000

ESD Protection Diodes / TVS Diodes

2KDFN18A-M3/H
Vishay Semiconductors
1: $1.74
3,000In Stock
New Product

Mfr. Part #
2KDFN18A-M3/H

Mouser Part #
78-2KDFN18A-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 3KW,13V 5%, DFN6546A TVS

3KDFN13A-M3/H
Vishay Semiconductors
1: $1.63
3,000In Stock
New Product

Mfr. Part #
3KDFN13A-M3/H

Mouser Part #
78-3KDFN13A-M3/H

New Product

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 3KW,13V 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 BIDIR TVS

3KDFN20CA-M3/H
Vishay Semiconductors
1: $2.26
3,000In Stock
New Product

Mfr. Part #
3KDFN20CA-M3/H

Mouser Part #
78-3KDFN20CA-M3/H

New Product

Vishay Semiconductors

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

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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,24V 5%, DFN6546A TVS

3KDFN24A-M3/H
Vishay Semiconductors
1: $1.63
3,000In Stock
New Product

Mfr. Part #
3KDFN24A-M3/H

Mouser Part #
78-3KDFN24A-M3/H

New Product

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 3KW,24V 5%, DFN6546A TVS

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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 400W,18V5%,SMFBIDIRTVS

T4F18CAHM3/I
Vishay Semiconductors
1: $0.677
6,922In Stock
New Product

Mfr. Part #
T4F18CAHM3/I

Mouser Part #
78-T4F18CAHM3/I

New Product

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 400W,18V5%,SMFBIDIRTVS

Learn More

Datasheet

6,922In Stock

Cut Tape

$0.677

$0.458

$0.264

$0.204

Reel

$0.127

View

Min.: 1
Mult.: 1

: 10,000

ESD Protection Diodes / TVS Diodes ESD PROTECTION DIODE SOD323

VLIN1616-02GHE3A08
Vishay
1: $0.72
12,328In Stock
New Product

Mfr. Part #
VLIN1616-02GHE3A08

Mouser Part #
78-VLIN1616-02HE3A08

New Product

Vishay

ESD Protection Diodes / TVS Diodes ESD PROTECTION DIODE SOD323

Datasheet

12,328In Stock

Cut Tape

$0.72

$0.505

$0.248

$0.207

Reel

$0.124

View

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes ESD Protection

PEC3827CS-AU_R1_007A1
Panjit
1: $0.648
3,500In Stock
New Product

Mfr. Part #
PEC3827CS-AU_R1_007A1

Mouser Part #
241-PEC3827CSAUR17A1

New Product

Panjit

ESD Protection Diodes / TVS Diodes ESD Protection

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Datasheet

3,500In Stock

Cut Tape

$0.648

$0.446

$0.219

$0.183

Reel

$0.098

View

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

Connectorized 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: $168.57
9In Stock
New Product

Mfr. Part #
111-1010

Mouser Part #
44-111-1010

New Product

PolyPhaser

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

Datasheet

9In Stock

$168.57

$159.88

Min.: 1
Mult.: 1

Surge Protection Accessories Hardware Kit, 108-1118B

9100-0453-A
PolyPhaser
1: $36.86
27In Stock
New Product

Mfr. Part #
9100-0453-A

Mouser Part #
44-9100-0453-A

New Product

PolyPhaser

Surge Protection Accessories Hardware Kit, 108-1118B

Datasheet

27In Stock

$36.86

$31.29

$29.88

$26.73

Min.: 1
Mult.: 1

Connectorized Surge Protectors TNC F/F Coaxial RF Surge Protector, DC - 50MHz, 1W, IP67, 15 V Max., 1mJ, 20kA, Hybrid, Bracket Down, Hole Mount

AGXZ+15TFTF-A
PolyPhaser
1: $230.54
9In Stock
New Product

Mfr. Part #
AGXZ+15TFTF-A

Mouser Part #
44-AGXZ+15TFTF-A

New Product

PolyPhaser

Connectorized Surge Protectors TNC F/F Coaxial RF Surge Protector, DC - 50MHz, 1W, IP67, 15 V Max., 1mJ, 20kA, Hybrid, Bracket Down, Hole Mount

Learn More

Datasheet

9In Stock

$230.54

$218.66

Min.: 1
Mult.: 1

Connectorized Surge Protectors Type N F/F Coaxial RF Surge Protector, 400MHz - 1.2GHz, 300W, IP67, 36 V Max., 1.5mJ, 20kA, Hybrid, Bracket Down, Hole Mount

CGXZ+36NFNF-A
PolyPhaser
1: $245.42
6In Stock
New Product

Mfr. Part #
CGXZ+36NFNF-A

Mouser Part #
44-CGXZ+36NFNF-A

New Product

PolyPhaser

Connectorized Surge Protectors Type N F/F Coaxial RF Surge Protector, 400MHz - 1.2GHz, 300W, IP67, 36 V Max., 1.5mJ, 20kA, Hybrid, Bracket Down, Hole Mount

Learn More

Datasheet

6In Stock

$245.42

$232.78

Min.: 1
Mult.: 1

Connectorized Surge Protectors Type N M/F Coaxial RF Surge Protector, 400MHz - 1.2GHz, 300W, IP67, 36 V Max., 1mJ, 20kA, Hybrid, Bracket Down, Hole Mount

CGXZ+36NMNF-A
PolyPhaser
1: $270.22
7In Stock
New Product

Mfr. Part #
CGXZ+36NMNF-A

Mouser Part #
44-CGXZ+36NMNF-A

New Product

PolyPhaser

Connectorized Surge Protectors Type N M/F Coaxial RF Surge Protector, 400MHz - 1.2GHz, 300W, IP67, 36 V Max., 1mJ, 20kA, Hybrid, Bracket Down, Hole Mount

Learn More

Datasheet

7In Stock

$270.22

$256.31

Min.: 1
Mult.: 1

Connectorized Surge Protectors 7/16 M/F Coaxial RF Surge Protector, 800MHz - 2.5GHz, 500W, IP67, 48 V Max., 146uJ, 20kA, Hybrid, Bracket Down, Hole Mount

DGXH+48DMDF-A
PolyPhaser
1: $293.01
5In Stock
New Product

Mfr. Part #
DGXH+48DMDF-A

Mouser Part #
44-DGXH+48DMDF-A

New Product

PolyPhaser

Connectorized Surge Protectors 7/16 M/F Coaxial RF Surge Protector, 800MHz - 2.5GHz, 500W, IP67, 48 V Max., 146uJ, 20kA, Hybrid, Bracket Down, Hole Mount

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Datasheet

5In Stock

$293.01

$280.61

Min.: 1
Mult.: 1

Connectorized Surge Protectors Type N M/F Bulkhead Coaxial RF Surge Protector, 550MHz - 2700MHz, DC Pass, 6V, IP67, 20kA, Hybrid, Bracket Up, Hole Mount

DGXR+06NMNF-Z
PolyPhaser
1: $225.58
5In Stock
New Product

Mfr. Part #
DGXR+06NMNF-Z

Mouser Part #
44-DGXR+06NMNF-Z

New Product

PolyPhaser

Connectorized Surge Protectors Type N M/F Bulkhead Coaxial RF Surge Protector, 550MHz - 2700MHz, DC Pass, 6V, IP67, 20kA, Hybrid, Bracket Up, Hole Mount

Datasheet

5In Stock

$225.58

$213.96

Min.: 1
Mult.: 1

Connectorized Surge Protectors Type N F/F Coaxial RF Surge Protector, 800MHz - 2.5GHz, 300W, IP67, 6 V Max., 175uJ, 20kA, Hybrid, Bracket Up, Hole Mount

DGXZ+06NFNF-B
PolyPhaser
1: $245.42
9In Stock
New Product

Mfr. Part #
DGXZ+06NFNF-B

Mouser Part #
44-DGXZ+06NFNF-B

New Product

PolyPhaser

Connectorized Surge Protectors Type N F/F Coaxial RF Surge Protector, 800MHz - 2.5GHz, 300W, IP67, 6 V Max., 175uJ, 20kA, Hybrid, Bracket Up, Hole Mount

Learn More

Datasheet

9In Stock

$245.42

$232.78

Min.: 1
Mult.: 1

Connectorized Surge Protectors Type N/SMA F/F Bulkhead Coaxial RF Surge Protector, DC - 7GHz, 90W, IP67, 9 V Max., 5mJ, 20kA, Gas Discharge Tube

GT-NFSF-AL
PolyPhaser
1: $168.57
9In Stock
New Product

Mfr. Part #
GT-NFSF-AL

Mouser Part #
44-GT-NFSF-AL

New Product

PolyPhaser

Connectorized Surge Protectors Type N/SMA F/F Bulkhead Coaxial RF Surge Protector, DC - 7GHz, 90W, IP67, 9 V Max., 5mJ, 20kA, Gas Discharge Tube

Learn More

Datasheet

9In Stock

$168.57

$159.88

Min.: 1
Mult.: 1

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

IS-B50LN-C2-MA
PolyPhaser
1: $161.12
9In Stock
New Product

Mfr. Part #
IS-B50LN-C2-MA

Mouser Part #
44-IS-B50LN-C2-MA

New Product

PolyPhaser

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

Learn More

Datasheet

9In Stock

$161.12

$152.83

Min.: 1
Mult.: 1

Circuit Breaker Accessories 508, DM, 20A, Distribution Module, Load, ATEX

PM12-T01-00-LOAD-20A-E
E-T-A
1: $56.06
7In Stock
New Product

Mfr. Part #
PM12-T01-00-LOAD-20A-E

Mouser Part #
457-PM12T100LOAD2AE

New Product

E-T-A

Circuit Breaker Accessories 508, DM, 20A, Distribution Module, Load, ATEX

Datasheet

7In Stock

$56.06

$43.24

$42.60

$40.19

Min.: 1
Mult.: 1

Circuit Protection

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