.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: 362.353

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 #

ESD Protection Diodes / TVS Diodes

2KDFN15CA-M3/H
Vishay Semiconductors
1: Rp21.832
3.000In Stock
New Product

Mfr. Part No.
2KDFN15CA-M3/H

Mouser Part No
78-2KDFN15CA-M3/H

New Product

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes

Learn More

Datasheet

3.000In Stock

Rp21.832

Rp15.833

Rp10.769

Rp8.494

View

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes

2KDFN20A-M3/H
Vishay Semiconductors
1: Rp22.199
3.000In Stock
New Product

Mfr. Part No.
2KDFN20A-M3/H

Mouser Part No
78-2KDFN20A-M3/H

New Product

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes

Learn More

Datasheet

3.000In Stock

Rp22.199

Rp13.961

Rp9.155

Rp7.082

View

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes

2KDFN22A-M3/H
Vishay Semiconductors
1: Rp22.199
3.000In Stock
New Product

Mfr. Part No.
2KDFN22A-M3/H

Mouser Part No
78-2KDFN22A-M3/H

New Product

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes

Learn More

Datasheet

3.000In Stock

Rp22.199

Rp13.961

Rp9.155

Rp7.082

View

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes

2KDFN22CA-M3/H
Vishay Semiconductors
1: Rp21.832
3.000In Stock
New Product

Mfr. Part No.
2KDFN22CA-M3/H

Mouser Part No
78-2KDFN22CA-M3/H

New Product

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes

Learn More

Datasheet

3.000In Stock

Rp21.832

Rp15.833

Rp10.769

Rp8.494

View

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes

2KDFN51CA-M3/H
Vishay Semiconductors
1: Rp25.134
3.000In Stock
New Product

Mfr. Part No.
2KDFN51CA-M3/H

Mouser Part No
78-2KDFN51CA-M3/H

New Product

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes

Learn More

Datasheet

3.000In Stock

Rp25.134

Rp15.961

Rp10.567

Rp8.274

View

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes

2KDFN56CA-M3/H
Vishay Semiconductors
1: Rp25.134
3.000In Stock
New Product

Mfr. Part No.
2KDFN56CA-M3/H

Mouser Part No
78-2KDFN56CA-M3/H

New Product

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes

Learn More

Datasheet

3.000In Stock

Rp25.134

Rp15.961

Rp10.567

Rp8.274

View

Min.: 1
Mult.: 1

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

3KDFN12A-M3/H
Vishay Semiconductors
1: Rp20.731
2.900In Stock
New Product

Mfr. Part No.
3KDFN12A-M3/H

Mouser Part No
78-3KDFN12A-M3/H

New Product

Vishay Semiconductors

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

Datasheet

2.900In Stock

Cut Tape

Rp20.731

Rp16.897

Rp13.154

Rp10.806

Reel

Rp8.421

View

Min.: 1
Mult.: 1

: 1.500

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

3KDFN20A-M3/H
Vishay Semiconductors
1: Rp20.731
3.000In Stock
New Product

Mfr. Part No.
3KDFN20A-M3/H

Mouser Part No
78-3KDFN20A-M3/H

New Product

Vishay Semiconductors

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

Datasheet

3.000In Stock

Cut Tape

Rp20.731

Rp16.897

Rp13.154

Rp10.806

Reel

Rp8.421

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: Rp18.896
2.240In Stock
New Product

Mfr. Part No.
SMB10J11AHM3_B/I

Mouser Part No
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

Rp18.896

Rp11.888

Rp7.779

Rp5.999

Reel

Rp4.715

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: Rp18.896
2.240In Stock
New Product

Mfr. Part No.
SMB10J9.0AHE3_B/I

Mouser Part No
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

Rp18.896

Rp11.888

Rp7.779

Rp5.999

Reel

Rp4.715

View

MouseReel Available

Min.: 1
Mult.: 1

: 3.200

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

T4F47CAHM3/I
Vishay Semiconductors
1: Rp8.806
7.828In Stock
New Product

Mfr. Part No.
T4F47CAHM3/I

Mouser Part No
78-T4F47CAHM3/I

New Product

Vishay Semiconductors

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

Learn More

Datasheet

7.828In Stock

Cut Tape

Rp8.806

Rp6.036

Rp3.412

Rp2.697

Reel

Rp1.651

View

Min.: 1
Mult.: 1

: 10.000

Varistors MLV, 1206, 30V

B72520X0250K062
TDK
1: Rp7.889
4.000In Stock
New Product

Mfr. Part No.
B72520X0250K062

Mouser Part No
871-B72520X0250K062

New Product

TDK

Varistors MLV, 1206, 30V

Learn More

Datasheet

4.000In Stock

Cut Tape

Rp7.889

Rp5.522

Rp4.256

Rp3.944

Reel

Rp3.100

View

MouseReel Available

Min.: 1
Mult.: 1

: 2.000

Varistors MLV, 1206, 25V

B72520X0300K062
TDK
1: Rp7.889
3.990In Stock
New Product

Mfr. Part No.
B72520X0300K062

Mouser Part No
871-B72520X0300K062

New Product

TDK

Varistors MLV, 1206, 25V

Learn More

Datasheet

3.990In Stock

Cut Tape

Rp7.889

Rp5.522

Rp4.256

Rp3.944

Reel

Rp3.100

View

MouseReel Available

Min.: 1
Mult.: 1

: 2.000

Varistors MLV, 1206, 40V

B72520X0400K062
TDK
1: Rp7.889
4.000In Stock
New Product

Mfr. Part No.
B72520X0400K062

Mouser Part No
871-B72520X0400K062

New Product

TDK

Varistors MLV, 1206, 40V

Learn More

Datasheet

4.000In Stock

Cut Tape

Rp7.889

Rp5.522

Rp4.256

Rp3.944

Reel

Rp3.100

View

MouseReel Available

Min.: 1
Mult.: 1

: 2.000

Varistors MLV, 1206, 20V

B72520X1200K062
TDK
1: Rp8.256
6.000In Stock
New Product

Mfr. Part No.
B72520X1200K062

Mouser Part No
871-B72520X1200K062

New Product

TDK

Varistors MLV, 1206, 20V

Learn More

Datasheet

6.000In Stock

Cut Tape

Rp8.256

Rp5.761

Rp4.440

Rp4.128

Reel

Rp3.247

View

MouseReel Available

Min.: 1
Mult.: 1

: 3.000

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: Rp3.158.264
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

Rp3.158.264

Rp2.995.535

Min.: 1
Mult.: 1

Connectorised Surge Protectors Type N F/F Coaxial RF Surge Protector, 800MHz - 2.5GHz, 300W, IP67, 60 V Max., 2.5mJ, 20kA, Hybrid, Bracket Down, Hole Mount

DGXZ-60NFNF-A
PolyPhaser
1: Rp3.530.504
1In Stock
8Expected 17/07/2026
New Product

Mfr. Part No.
DGXZ-60NFNF-A

Mouser Part No
44-DGXZ-60NFNF-A

New Product

PolyPhaser

Connectorised Surge Protectors Type N F/F Coaxial RF Surge Protector, 800MHz - 2.5GHz, 300W, IP67, 60 V Max., 2.5mJ, 20kA, Hybrid, Bracket Down, Hole Mount

Learn More

Datasheet

1In Stock

8Expected 17/07/2026

Rp3.530.504

Rp3.381.168

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: Rp1.423.283
19In Stock
6Expected 17/07/2026
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 17/07/2026

Rp1.423.283

Rp1.347.330

Min.: 1
Mult.: 1

Connectorised Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, DC - 6GHz, 1000W, IP67, 60 V Max., 2.5mJ, 20kA, Gas Discharge Tube

GTH-NFF-AL
PolyPhaser
1: Rp1.452.636
6In Stock
49On Order
New Product

Mfr. Part No.
GTH-NFF-AL

Mouser Part No
44-GTH-NFF-AL

New Product

PolyPhaser

Connectorised Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, DC - 6GHz, 1000W, IP67, 60 V Max., 2.5mJ, 20kA, Gas Discharge Tube

Learn More

Datasheet

6In Stock

49On Order

Rp1.452.636

Rp1.377.785

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: Rp4.717.124
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

Rp4.717.124

Rp4.517.519

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: Rp2.305.358
9In Stock
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

Rp2.305.358

Rp2.186.660

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: Rp2.400.207
4In Stock
3Expected 17/07/2026
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

4In Stock

3Expected 17/07/2026

Rp2.400.207

Rp2.276.555

Min.: 1
Mult.: 1

Connectorised Surge Protectors UHF M/F Coaxial RF Surge Protector, 1.5MHz - 700MHz, DC Block, 2kW, 10mJ, 50kA, Blocking Cap, Bracket Up, Hole Mount

IS-B50LU-C0-MA
PolyPhaser
1: Rp2.305.358
5In Stock
New Product

Mfr. Part No.
IS-B50LU-C0-MA

Mouser Part No
44-IS-B50LU-C0-MA

New Product

PolyPhaser

Connectorised Surge Protectors UHF M/F Coaxial RF Surge Protector, 1.5MHz - 700MHz, DC Block, 2kW, 10mJ, 50kA, Blocking Cap, Bracket Up, Hole Mount

Learn More

Datasheet

5In Stock

Rp2.305.358

Rp2.186.660

Min.: 1
Mult.: 1

Connectorised Surge Protectors Type N F/F Coaxial RF Surge Protector, 100MHz - 512MHz, DC Block, 750W, IP67, .5uJ, 20kA, Filter, Bracket Up, Hole Mount

VHF50HN-B
PolyPhaser
1: Rp2.716.125
9In Stock
18On Order
New Product

Mfr. Part No.
VHF50HN-B

Mouser Part No
44-VHF50HN-B

New Product

PolyPhaser

Connectorised Surge Protectors Type N F/F Coaxial RF Surge Protector, 100MHz - 512MHz, DC Block, 750W, IP67, .5uJ, 20kA, Filter, Bracket Up, Hole Mount

Learn More

Datasheet

9In Stock

18On Order

Rp2.716.125

Rp2.576.145

Min.: 1
Mult.: 1

Circuit Breakers 508,DM,24VDC,CL,12A,ATX

REX22D-TA1-100-DC24V-12A-E
E-T-A
1: Rp1.606.376
6In Stock
124Expected 20/07/2026
New Product

Mfr. Part No.
REX22D-TA1-100-DC24V-12A-E

Mouser Part No
457-REX22DTA112E

New Product

E-T-A

Circuit Breakers 508,DM,24VDC,CL,12A,ATX

Learn More

Datasheet

6In Stock

124Expected 20/07/2026

Rp1.606.376

Rp1.322.196

Rp1.302.749

Rp1.228.815

Min.: 1
Mult.: 1

Circuit Protection

Types of Circuit Protection

Customer Service Office

Company

Resources

Support