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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: 361,806

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Part #

Circuit Breakers PDG2,3P,35A,25KA/480V,FXFXTMTU

PDG23F0035TFFJ
Eaton Electrical
1: $1,004.52
2In Stock
New Product

Mfr. Part No.
PDG23F0035TFFJ

Mouser Part No
504-PDG23F0035TFFJ

New Product

Eaton Electrical

Circuit Breakers PDG2,3P,35A,25KA/480V,FXFXTMTU

Datasheet

2In Stock

$1,004.52

$832.14

$767.14

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Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors ESA PROBE-RTD PT1000 1000mm ENG MODEL

10219128-01
TE Connectivity
1: $554.89
1In Stock
New Product

Mfr. Part No.
10219128-01

Mouser Part No
571-10219128-01

New Product

TE Connectivity

NTC (Negative Temperature Coefficient) Thermistors ESA PROBE-RTD PT1000 1000mm ENG MODEL

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Datasheet

1In Stock

$554.89

$507.31

$467.30

$438.14

View

Min.: 1
Mult.: 1

Industrial Surge Protectors VAL-SPP-T2-275-1+0-UT

1466209
Phoenix Contact
1: $115.60
7In Stock
New Product

Mfr. Part No.
1466209

Mouser Part No
651-1466209

New Product

Phoenix Contact

Industrial Surge Protectors VAL-SPP-T2-275-1+0-UT

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Datasheet

7In Stock

$115.60

Min.: 1
Mult.: 1

Industrial Surge Protectors VAL-SPP-T2-275-1+1-UT

1466211
Phoenix Contact
1: $242.37
6In Stock
New Product

Mfr. Part No.
1466211

Mouser Part No
651-1466211

New Product

Phoenix Contact

Industrial Surge Protectors VAL-SPP-T2-275-1+1-UT

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Datasheet

6In Stock

$242.37

$238.00

Min.: 1
Mult.: 1

Industrial Surge Protectors VAL-US-SPP-240/50/2+0-R

1790765
Phoenix Contact
1: $239.36
1In Stock
8Expected 20/8/2026
New Product

Mfr. Part No.
1790765

Mouser Part No
651-1790765

New Product

Phoenix Contact

Industrial Surge Protectors VAL-US-SPP-240/50/2+0-R

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Datasheet

1In Stock

8Expected 20/8/2026

$239.36

Min.: 1
Mult.: 1

Industrial Surge Protectors VAL-US-SPP-277/50-P

1790769
Phoenix Contact
1: $74.81
7In Stock
New Product

Mfr. Part No.
1790769

Mouser Part No
651-1790769

New Product

Phoenix Contact

Industrial Surge Protectors VAL-US-SPP-277/50-P

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Datasheet

7In Stock

$74.81

Min.: 1
Mult.: 1

Industrial Surge Protectors VAL-US-SPP-600D/40-P

1790792
Phoenix Contact
1: $81.42
7In Stock
New Product

Mfr. Part No.
1790792

Mouser Part No
651-1790792

New Product

Phoenix Contact

Industrial Surge Protectors VAL-US-SPP-600D/40-P

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Datasheet

7In Stock

$81.42

$74.80

Min.: 1
Mult.: 1

Industrial Surge Protectors VAL-US-SPP-HVNG-P

1790798
Phoenix Contact
1: $81.61
7In Stock
New Product

Mfr. Part No.
1790798

Mouser Part No
651-1790798

New Product

Phoenix Contact

Industrial Surge Protectors VAL-US-SPP-HVNG-P

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Datasheet

7In Stock

$81.61

Min.: 1
Mult.: 1

Industrial & Electrical Fuses POWrFuse BD 1000Vdc 250A

PF-01N100E250B2
Bourns
1: $427.79
6In Stock
New Product

Mfr. Part No.
PF-01N100E250B2

Mouser Part No
652-PF-01N100E250B2

New Product

Bourns

Industrial & Electrical Fuses POWrFuse BD 1000Vdc 250A

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Datasheet

6In Stock

$427.79

$356.02

$336.21

$276.88

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes

2KDFN13CA-M3/H
Vishay Semiconductors
1: $1.62
3,000In Stock
New Product

Mfr. Part No.
2KDFN13CA-M3/H

Mouser Part No
78-2KDFN13CA-M3/H

New Product

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes

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Datasheet

3,000In Stock

$1.62

$1.17

$0.798

$0.63

View

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes

2KDFN20CA-M3/H
Vishay Semiconductors
1: $1.62
3,000In Stock
New Product

Mfr. Part No.
2KDFN20CA-M3/H

Mouser Part No
78-2KDFN20CA-M3/H

New Product

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes

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Datasheet

3,000In Stock

$1.62

$1.17

$0.798

$0.63

View

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes

2KDFN24A-M3/H
Vishay Semiconductors
1: $1.65
3,000In Stock
New Product

Mfr. Part No.
2KDFN24A-M3/H

Mouser Part No
78-2KDFN24A-M3/H

New Product

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes

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Datasheet

3,000In Stock

$1.65

$1.03

$0.679

$0.525

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Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes

2KDFN30CA-M3/H
Vishay Semiconductors
1: $1.86
3,000In Stock
New Product

Mfr. Part No.
2KDFN30CA-M3/H

Mouser Part No
78-2KDFN30CA-M3/H

New Product

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes

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Datasheet

3,000In Stock

$1.86

$1.18

$0.783

$0.613

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Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes Diode, TVS, uni-dir, 1000W, 20V, 5%, SMB (DO-214AA), auto-grade

SMB10J20AHM3_B/I
Vishay Semiconductors
1: $1.40
2,240In Stock
New Product

Mfr. Part No.
SMB10J20AHM3_B/I

Mouser Part No
78-SMB10J20AHM3_B/I

New Product

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes Diode, TVS, uni-dir, 1000W, 20V, 5%, SMB (DO-214AA), auto-grade

Learn More

Datasheet

2,240In Stock

Cut Tape

$1.40

$0.881

$0.577

$0.445

Reel

$0.35

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,200

Varistors MLV. 0603,25V

B72500X8250L060
TDK
1: $0.626
12,000In Stock
New Product

Mfr. Part No.
B72500X8250L060

Mouser Part No
871-B72500X8250L060

New Product

TDK

Varistors MLV. 0603,25V

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Datasheet

12,000In Stock

Cut Tape

$0.626

$0.394

$0.246

$0.207

Reel

$0.114

View

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Varistors MLV. 0603,25V

B72500X8250L160
TDK
1: $0.326
2,800In Stock
New Product

Mfr. Part No.
B72500X8250L160

Mouser Part No
871-B72500X8250L160

New Product

TDK

Varistors MLV. 0603,25V

Learn More

Datasheet

2,800In Stock

Cut Tape

$0.326

$0.222

$0.167

$0.154

Reel

$0.116

View

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Varistors MLV, 0805, 30V

B72510X1300K062
TDK
1: $0.49
6,000In Stock
New Product

Mfr. Part No.
B72510X1300K062

Mouser Part No
871-B72510X1300K062

New Product

TDK

Varistors MLV, 0805, 30V

Learn More

Datasheet

6,000In Stock

Cut Tape

$0.49

$0.335

$0.257

$0.237

Reel

$0.182

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Varistors MLV, 1210, 17V

B72530X0170K062
TDK
1: $0.68
6,000In Stock
New Product

Mfr. Part No.
B72530X0170K062

Mouser Part No
871-B72530X0170K062

New Product

TDK

Varistors MLV, 1210, 17V

Learn More

Datasheet

6,000In Stock

Cut Tape

$0.68

$0.48

$0.371

$0.344

Reel

$0.273

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Varistors MLV, 1210, 30V

B72530X1300K062
TDK
1: $0.707
3,998In Stock
New Product

Mfr. Part No.
B72530X1300K062

Mouser Part No
871-B72530X1300K062

New Product

TDK

Varistors MLV, 1210, 30V

Learn More

Datasheet

3,998In Stock

Cut Tape

$0.707

$0.496

$0.386

$0.358

Reel

$0.283

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 2 ELECT / 3000v

B88069X4231T502
TDK
1: $2.37
766In Stock
New Product

Mfr. Part No.
B88069X4231T502

Mouser Part No
871-B88069X4231T502

New Product

TDK

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 2 ELECT / 3000v

Learn More

Datasheet

766In Stock

Cut Tape

$2.37

$1.96

$1.62

$1.39

Reel

$1.13

View

Min.: 1
Mult.: 1

: 500

Connectorised Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, 700MHz to 1000MHz, Telemetry, DC Pass, 15V, IP67, 20kA, Hybrid, Flange Mount

109-0501W-D
PolyPhaser
1: $234.12
5In Stock
New Product

Mfr. Part No.
109-0501W-D

Mouser Part No
44-109-0501W-D

New Product

PolyPhaser

Connectorised Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, 700MHz to 1000MHz, Telemetry, DC Pass, 15V, IP67, 20kA, Hybrid, Flange Mount

Datasheet

5In Stock

$234.12

$222.06

Min.: 1
Mult.: 1

Connectorised Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, DC - 3GHz, 40W, IP67, 60 V Max., 500uJ, 4kA, Gas Discharge Tube

DT-NFF
PolyPhaser
1: $105.51
19In Stock
6Expected 20/7/2026
New Product

Mfr. Part No.
DT-NFF

Mouser Part No
44-DT-NFF

New Product

PolyPhaser

Connectorised Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, DC - 3GHz, 40W, IP67, 60 V Max., 500uJ, 4kA, Gas Discharge Tube

Learn More

Datasheet

19In Stock

6Expected 20/7/2026

$105.51

$99.88

Min.: 1
Mult.: 1

Connectorised Surge Protectors HEMP Tested 7/16 F/M Bulkhead Coaxial RF Surge Protector, 698MHz - 2.7GHz, 1000W, IP67, 100 V Max., 25mJ, 20kA, Filter, Low PIM

HT-RO-TSX-DCDFM
PolyPhaser
1: $349.68
5In Stock
New Product

Mfr. Part No.
HT-RO-TSX-DCDFM

Mouser Part No
44-HT-RO-TSX-DCDFM

New Product

PolyPhaser

Connectorised Surge Protectors HEMP Tested 7/16 F/M Bulkhead Coaxial RF Surge Protector, 698MHz - 2.7GHz, 1000W, IP67, 100 V Max., 25mJ, 20kA, Filter, Low PIM

Learn More

Datasheet

5In Stock

$349.68

$334.89

Min.: 1
Mult.: 1

Connectorised Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, 1.5MHz - 700MHz, DC Block, 3kW, 20uJ, 50kA, Blocking Cap, Hole Mount

IS-B50HN-C0
PolyPhaser
1: $170.90
9In Stock
9Expected 31/7/2026
New Product

Mfr. Part No.
IS-B50HN-C0

Mouser Part No
44-IS-B50HN-C0

New Product

PolyPhaser

Connectorised Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, 1.5MHz - 700MHz, DC Block, 3kW, 20uJ, 50kA, Blocking Cap, Hole Mount

Learn More

Datasheet

9In Stock

9Expected 31/7/2026

$170.90

$162.10

Min.: 1
Mult.: 1

Connectorised Surge Protectors Type N F/M Bulkhead Coaxial RF Surge Protector, 125MHz - 1GHz, DC Block, 500W, 800uJ, 50kA, Blocking Cap, Hole Mount

IS-B50HN-C2-ME
PolyPhaser
1: $177.93
7In Stock
New Product

Mfr. Part No.
IS-B50HN-C2-ME

Mouser Part No
44-IS-B50HN-C2-ME

New Product

PolyPhaser

Connectorised Surge Protectors Type N F/M Bulkhead Coaxial RF Surge Protector, 125MHz - 1GHz, DC Block, 500W, 800uJ, 50kA, Blocking Cap, Hole Mount

Learn More

Datasheet

7In Stock

$177.93

$168.76

Min.: 1
Mult.: 1

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