.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: 361,018

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 #

Connectorised 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: £117.61
4In Stock
New Product

Mfr. Part No.
DGXR+06NMNF-Z

Mouser Part No
44-DGXR+06NMNF-Z

New Product

PolyPhaser

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

Datasheet

4In Stock

£117.61

£111.55

Min.: 1
Mult.: 1

Connectorised 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: £127.96
8In Stock
New Product

Mfr. Part No.
DGXZ+06NFNF-B

Mouser Part No
44-DGXZ+06NFNF-B

New Product

PolyPhaser

Connectorised 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

8In Stock

£127.96

£121.36

Min.: 1
Mult.: 1

Connectorised Surge Protectors TNC M/F Bulkhead Coaxial RF Surge Protector, 700MHz - 2.5GHz, DC Block, 500W, IP67, .5uJ, 18kA, Filter

DSXL-T-MA
PolyPhaser
1: £220.28
4In Stock
New Product

Mfr. Part No.
DSXL-T-MA

Mouser Part No
44-DSXL-T-MA

New Product

PolyPhaser

Connectorised Surge Protectors TNC M/F Bulkhead Coaxial RF Surge Protector, 700MHz - 2.5GHz, DC Block, 500W, IP67, .5uJ, 18kA, Filter

Datasheet

4In Stock

£220.28

£210.96

Min.: 1
Mult.: 1

Connectorised 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: £87.88
8In Stock
New Product

Mfr. Part No.
GT-NFSF-AL

Mouser Part No
44-GT-NFSF-AL

New Product

PolyPhaser

Connectorised 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

8In Stock

£87.88

£83.36

Min.: 1
Mult.: 1

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

IS-50NX-C0-ME
PolyPhaser
1: £81.42
4In Stock
New Product

Mfr. Part No.
IS-50NX-C0-ME

Mouser Part No
44-IS-50NX-C0-ME

New Product

PolyPhaser

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

Learn More

Datasheet

4In Stock

£81.42

£77.23

Min.: 1
Mult.: 1

Connectorised 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: £84.01
8In Stock
New Product

Mfr. Part No.
IS-B50LN-C2-MA

Mouser Part No
44-IS-B50LN-C2-MA

New Product

PolyPhaser

Connectorised 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

8In Stock

£84.01

£79.68

Min.: 1
Mult.: 1

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

PM12-T01-00-LOAD-20A-E
E-T-A
1: £29.23
6In Stock
New Product

Mfr. Part No.
PM12-T01-00-LOAD-20A-E

Mouser Part No
457-PM12T100LOAD2AE

New Product

E-T-A

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

Datasheet

6In Stock

£29.23

£22.55

£22.21

£20.95

Min.: 1
Mult.: 1

Circuit Breakers 508,DM,24VDC,CL,20A,ATX

REX22D-TA1-100-DC24V-20A-E
E-T-A
1: £65.74
6In Stock
New Product

Mfr. Part No.
REX22D-TA1-100-DC24V-20A-E

Mouser Part No
457-REX22DTA120E

New Product

E-T-A

Circuit Breakers 508,DM,24VDC,CL,20A,ATX

Learn More

Datasheet

6In Stock

£65.74

£54.11

£53.31

£50.28

Min.: 1
Mult.: 1

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

10219128-01
TE Connectivity
1: £306.33
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

Learn More

Datasheet

1In Stock

£306.33

£280.06

£257.97

£241.87

View

Min.: 1
Mult.: 1

Industrial Surge Protectors VAL-SPP-T2-275-3+1-UT-R

1466214
Phoenix Contact
1: £263.52
4In Stock
New Product

Mfr. Part No.
1466214

Mouser Part No
651-1466214

New Product

Phoenix Contact

Industrial Surge Protectors VAL-SPP-T2-275-3+1-UT-R

Learn More

Datasheet

4In Stock

£263.52

Min.: 1
Mult.: 1

Circuit Breakers PTCB TM1 16A F2 NO P

1567580
Phoenix Contact
1: £21.48
40In Stock
New Product

Mfr. Part No.
1567580

Mouser Part No
651-1567580

New Product

Phoenix Contact

Circuit Breakers PTCB TM1 16A F2 NO P

Learn More

Datasheet

40In Stock

£21.48

Min.: 1
Mult.: 1

Circuit Breakers PTCB TM1 5A M1 NO P

1575571
Phoenix Contact
1: £21.48
40In Stock
New Product

Mfr. Part No.
1575571

Mouser Part No
651-1575571

New Product

Phoenix Contact

Circuit Breakers PTCB TM1 5A M1 NO P

Learn More

Datasheet

40In Stock

£21.48

Min.: 1
Mult.: 1

Industrial Surge Protectors VAL-US-SPP-120/65/3+0-R

1790758
Phoenix Contact
1: £207.22
1In Stock
9Expected 08/06/2026
New Product

Mfr. Part No.
1790758

Mouser Part No
651-1790758

New Product

Phoenix Contact

Industrial Surge Protectors VAL-US-SPP-120/65/3+0-R

Learn More

Datasheet

1In Stock

9Expected 08/06/2026

£207.22

Min.: 1
Mult.: 1

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

1790765
Phoenix Contact
1: £132.14
7In Stock
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

Learn More

Datasheet

7In Stock

£132.14

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes

2KDFN13CA-M3/H
Vishay Semiconductors
1: £0.89
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

Learn More

Datasheet

3,000In Stock

£0.89

£0.648

£0.441

£0.347

View

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes

2KDFN20CA-M3/H
Vishay Semiconductors
1: £0.89
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

Learn More

Datasheet

3,000In Stock

£0.89

£0.648

£0.441

£0.347

View

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes

2KDFN24A-M3/H
Vishay Semiconductors
1: £0.908
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

Learn More

Datasheet

3,000In Stock

£0.908

£0.571

£0.375

£0.29

View

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: £0.773
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

£0.773

£0.486

£0.319

£0.245

Reel

£0.193

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,200

ESD Protection Diodes / TVS Diodes ESD PROTECTION DIODE SOT323

VCAN33C2-03GHE3A08
Vishay
1: £0.33
14,700In Stock
New Product

Mfr. Part No.
VCAN33C2-03GHE3A08

Mouser Part No
78-VCAN33C2-03HE3A08

New Product

Vishay

ESD Protection Diodes / TVS Diodes ESD PROTECTION DIODE SOT323

Datasheet

14,700In Stock

Cut Tape

£0.33

£0.221

£0.127

£0.099

Reel

£0.072

View

Min.: 1
Mult.: 1

: 3,000

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

B88069X4231T502
TDK
1: £1.31
775In 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

775In Stock

Cut Tape

£1.31

£1.08

£0.89

£0.766

Reel

£0.626

View

Min.: 1
Mult.: 1

: 500

Connectorised Surge Protectors Type N F/M Bulkhead Coaxial RF Surge Protector, 2GHz - 6GHz, DC Block, 10W, IP67, .5uJ, 10kA, Filter

AL-LSXM-ME
PolyPhaser
1: £54.22
20In Stock
New Product

Mfr. Part No.
AL-LSXM-ME

Mouser Part No
44-AL-LSXM-ME

New Product

PolyPhaser

Connectorised Surge Protectors Type N F/M Bulkhead Coaxial RF Surge Protector, 2GHz - 6GHz, DC Block, 10W, IP67, .5uJ, 10kA, Filter

Learn More

Datasheet

20In Stock

£54.22

£51.33

Min.: 1
Mult.: 1

Connectorised Surge Protectors Type N F/F Coaxial RF Surge Protector, 400MHz - 1.2GHz, 300W, IP67, 15 V Max., 25uJ, 20kA, Hybrid, Bracket Down, Hole Mount

CGXJ+15NFNF-A
PolyPhaser
1: £158.69
3In Stock
New Product

Mfr. Part No.
CGXJ+15NFNF-A

Mouser Part No
44-CGXJ+15NFNF-A

New Product

PolyPhaser

Connectorised Surge Protectors Type N F/F Coaxial RF Surge Protector, 400MHz - 1.2GHz, 300W, IP67, 15 V Max., 25uJ, 20kA, Hybrid, Bracket Down, Hole Mount

Learn More

Datasheet

3In Stock

£158.69

£151.98

Min.: 1
Mult.: 1

Connectorised Surge Protectors Type N/SMA F/F Bulkhead Coaxial RF Surge Protector, 1.2GHz - 1.6GHz, 10W, IP67, 6 V Max., 175uJ, 15kA, Avalanche Diode

GPS+06NFSF
PolyPhaser
1: £104.69
4In Stock
New Product

Mfr. Part No.
GPS+06NFSF

Mouser Part No
44-GPS+06NFSF

New Product

PolyPhaser

Connectorised Surge Protectors Type N/SMA F/F Bulkhead Coaxial RF Surge Protector, 1.2GHz - 1.6GHz, 10W, IP67, 6 V Max., 175uJ, 15kA, Avalanche Diode

Learn More

Datasheet

4In Stock

£104.69

£99.30

Min.: 1
Mult.: 1

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

GT-TFF-AL
PolyPhaser
1: £57.57
16In Stock
22On Order
New Product

Mfr. Part No.
GT-TFF-AL

Mouser Part No
44-GT-TFF-AL

New Product

PolyPhaser

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

Learn More

Datasheet

16In Stock

22On Order

£57.57

£54.50

Min.: 1
Mult.: 1

Connectorised Surge Protectors HEMP Tested Type N F/F Bulkhead Coaxial RF Surge Protector, 800MHz - 2.5GHz, 300W, IP67, 6 V Max., 175uJ, 20kA, Hybrid

HT-RO-E3PM-DCP
PolyPhaser
1: £285.42
1In Stock
New Product

Mfr. Part No.
HT-RO-E3PM-DCP

Mouser Part No
44-HT-RO-E3PM-DCP

New Product

PolyPhaser

Connectorised Surge Protectors HEMP Tested Type N F/F Bulkhead Coaxial RF Surge Protector, 800MHz - 2.5GHz, 300W, IP67, 6 V Max., 175uJ, 20kA, Hybrid

Datasheet

1In Stock

£285.42

£273.35

Min.: 1
Mult.: 1

Circuit Protection

Types of Circuit Protection

Customer Service Office

Company

Resources

Support