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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: 361,018

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Part #

Resettable Fuses - PPTC 2920 Resettable SMD PPTC 7.0A/12V

MF-LSMF700/12X-2
Bourns
1: £1.07
2,800In Stock
New Product

Mfr. Part No.
MF-LSMF700/12X-2

Mouser Part No
652-MF-LSMF700/12X-2

New Product

Bourns

Resettable Fuses - PPTC 2920 Resettable SMD PPTC 7.0A/12V

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Datasheet

2,800In Stock

Cut Tape

£1.07

£0.796

£0.598

£0.584

View

Reel

£0.357

Min.: 1
Mult.: 1

: 4,000

ESD Protection Diodes / TVS Diodes

2KDFN24CA-M3/H
Vishay Semiconductors
1: £0.89
3,000In Stock
New Product

Mfr. Part No.
2KDFN24CA-M3/H

Mouser Part No
78-2KDFN24CA-M3/H

New Product

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes

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Datasheet

3,000In Stock

£0.89

£0.648

£0.441

£0.347

View

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes 3KW,15V 5%, DFN6546A TVS

3KDFN15A-M3/H
Vishay Semiconductors
1: £0.849
3,000In Stock
New Product

Mfr. Part No.
3KDFN15A-M3/H

Mouser Part No
78-3KDFN15A-M3/H

New Product

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 3KW,15V 5%, DFN6546A TVS

Datasheet

3,000In Stock

Cut Tape

£0.849

£0.691

£0.539

£0.443

Reel

£0.345

View

Min.: 1
Mult.: 1

: 1,500

ESD Protection Diodes / TVS Diodes 3KW,18V 5%, DFN6546A TVS

3KDFN18A-M3/H
Vishay Semiconductors
1: £0.849
2,995In Stock
New Product

Mfr. Part No.
3KDFN18A-M3/H

Mouser Part No
78-3KDFN18A-M3/H

New Product

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 3KW,18V 5%, DFN6546A TVS

Datasheet

2,995In Stock

Cut Tape

£0.849

£0.691

£0.539

£0.443

Reel

£0.345

View

Min.: 1
Mult.: 1

: 1,500

ESD Protection Diodes / TVS Diodes 3KW,22V 5%, DFN6546A TVS

3KDFN22A-M3/H
Vishay Semiconductors
1: £0.849
3,000In Stock
New Product

Mfr. Part No.
3KDFN22A-M3/H

Mouser Part No
78-3KDFN22A-M3/H

New Product

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 3KW,22V 5%, DFN6546A TVS

Datasheet

3,000In Stock

Cut Tape

£0.849

£0.691

£0.539

£0.443

Reel

£0.345

View

Min.: 1
Mult.: 1

: 1,500

ESD Protection Diodes / TVS Diodes 400W,30V5%,SMFBIDIRTVS

T4F30CAHM3/I
Vishay Semiconductors
1: £0.323
6,893In Stock
New Product

Mfr. Part No.
T4F30CAHM3/I

Mouser Part No
78-T4F30CAHM3/I

New Product

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 400W,30V5%,SMFBIDIRTVS

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Datasheet

6,893In Stock

Cut Tape

£0.323

£0.211

£0.125

£0.094

Reel

£0.059

View

Min.: 1
Mult.: 1

: 10,000

ESD Protection Diodes / TVS Diodes 400W,43V5%,SMFBIDIRTVS

T4F43CAHM3/I
Vishay Semiconductors
1: £0.361
10,000In Stock
New Product

Mfr. Part No.
T4F43CAHM3/I

Mouser Part No
78-T4F43CAHM3/I

New Product

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 400W,43V5%,SMFBIDIRTVS

Learn More

Datasheet

10,000In Stock

Cut Tape

£0.361

£0.247

£0.14

£0.11

Reel

£0.067

View

Min.: 1
Mult.: 1

: 10,000

Connectorised Surge Protectors Coaxial RF Surge Protector Kit, BGXZ-60NFNM-AS, Hardware Kit

108-1019A
PolyPhaser
1: £144.48
4In Stock
New Product

Mfr. Part No.
108-1019A

Mouser Part No
44-108-1019A

New Product

PolyPhaser

Connectorised Surge Protectors Coaxial RF Surge Protector Kit, BGXZ-60NFNM-AS, Hardware Kit

Datasheet

4In Stock

£144.48

£138.37

Min.: 1
Mult.: 1

Connectorised Surge Protectors Type N F/F Coaxial RF Surge Protector, 400MHz - 1.2GHz, 300W, IP67, 15 V Max., 500uJ, 20kA, Hybrid, Bracket Down, Hole Mount

CGXZ+15NFNF-A
PolyPhaser
1: £127.96
3In Stock
New Product

Mfr. Part No.
CGXZ+15NFNF-A

Mouser Part No
44-CGXZ+15NFNF-A

New Product

PolyPhaser

Connectorised Surge Protectors Type N F/F Coaxial RF Surge Protector, 400MHz - 1.2GHz, 300W, IP67, 15 V Max., 500uJ, 20kA, Hybrid, Bracket Down, Hole Mount

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Datasheet

3In Stock

£127.96

£121.37

Min.: 1
Mult.: 1

Connectorised Surge Protectors Type N M/F Coaxial RF Surge Protector, 400MHz - 1.2GHz, 300W, IP67, 15 V Max., 500uJ, 20kA, Hybrid, Bracket Down, Hole Mount

CGXZ+15NMNF-A
PolyPhaser
1: £144.76
2In Stock
New Product

Mfr. Part No.
CGXZ+15NMNF-A

Mouser Part No
44-CGXZ+15NMNF-A

New Product

PolyPhaser

Connectorised Surge Protectors Type N M/F Coaxial RF Surge Protector, 400MHz - 1.2GHz, 300W, IP67, 15 V Max., 500uJ, 20kA, Hybrid, Bracket Down, Hole Mount

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Datasheet

2In Stock

£144.76

£137.31

Min.: 1
Mult.: 1

Connectorised Surge Protectors Type N F/F Coaxial RF Surge Protector, 800MHz - 2.5GHz, 300W, IP67, 15 V Max., 500uJ, 20kA, Hybrid, Bracket Down, Hole Mount

DGXZ+15NFNF-A
PolyPhaser
1: £139.59
8In Stock
33Expected 28/08/2026
New Product

Mfr. Part No.
DGXZ+15NFNF-A

Mouser Part No
44-DGXZ+15NFNF-A

New Product

PolyPhaser

Connectorised Surge Protectors Type N F/F Coaxial RF Surge Protector, 800MHz - 2.5GHz, 300W, IP67, 15 V Max., 500uJ, 20kA, Hybrid, Bracket Down, Hole Mount

Learn More

Datasheet

8In Stock

33Expected 28/08/2026

£139.59

£132.40

Min.: 1
Mult.: 1

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

GSA-KIT-D
PolyPhaser
1: £58.91
4In Stock
New Product

Mfr. Part No.
GSA-KIT-D

Mouser Part No
44-GSA-KIT-D

New Product

PolyPhaser

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

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Datasheet

4In Stock

£58.91

£55.78

Min.: 1
Mult.: 1

Connectorised Surge Protectors Type N F/M Bulkhead Coaxial RF Surge Protector, DC - 6GHz, 90W, IP67, 60 V Max., 5mJ, 20kA, Gas Discharge Tube

GT-NFM-AL
PolyPhaser
1: £48.86
16In Stock
24Expected 29/05/2026
New Product

Mfr. Part No.
GT-NFM-AL

Mouser Part No
44-GT-NFM-AL

New Product

PolyPhaser

Connectorised Surge Protectors Type N F/M Bulkhead Coaxial RF Surge Protector, DC - 6GHz, 90W, IP67, 60 V Max., 5mJ, 20kA, Gas Discharge Tube

Learn More

Datasheet

16In Stock

24Expected 29/05/2026

£48.86

£46.26

Min.: 1
Mult.: 1

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

IS-50NX-C2-ME
PolyPhaser
1: £63.96
8In Stock
New Product

Mfr. Part No.
IS-50NX-C2-ME

Mouser Part No
44-IS-50NX-C2-ME

New Product

PolyPhaser

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

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Datasheet

8In Stock

£63.96

£60.67

Min.: 1
Mult.: 1

Connectorised Surge Protectors UHF F/M Coaxial RF Surge Protector, 50MHz - 700MHz, DC Block, 375W, 600uJ, 50kA, Blocking Cap, Bracket Up, Hole Mount

IS-50UX-C1-ME
PolyPhaser
1: £84.01
3In Stock
New Product

Mfr. Part No.
IS-50UX-C1-ME

Mouser Part No
44-IS-50UX-C1-ME

New Product

PolyPhaser

Connectorised Surge Protectors UHF F/M Coaxial RF Surge Protector, 50MHz - 700MHz, DC Block, 375W, 600uJ, 50kA, Blocking Cap, Bracket Up, Hole Mount

Datasheet

3In Stock

£84.01

£79.68

Min.: 1
Mult.: 1

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

IS-B50LN-C2-ME
PolyPhaser
1: £68.50
4In Stock
3Expected 12/06/2026
New Product

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

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

New Product

PolyPhaser

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

Learn More

Datasheet

4In Stock

3Expected 12/06/2026

£68.50

£64.97

Min.: 1
Mult.: 1

Connectorised Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, 125MHz - 1GHz, DC Block, 200W, 250uJ, 50kA, Blocking Cap, Hole Mount

IS-NEMP-C2
PolyPhaser
1: £138.29
5In Stock
New Product

Mfr. Part No.
IS-NEMP-C2

Mouser Part No
44-IS-NEMP-C2

New Product

PolyPhaser

Connectorised Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, 125MHz - 1GHz, DC Block, 200W, 250uJ, 50kA, Blocking Cap, Hole Mount

Learn More

Datasheet

5In Stock

£138.29

£131.17

Min.: 1
Mult.: 1

Connectorised Surge Protectors Outdoor Twisted Pair Lightning Surge Protector, 2 Pair RS-232, UL 497B

IX-2M
PolyPhaser
1: £117.61
3In Stock
New Product

Mfr. Part No.
IX-2M

Mouser Part No
44-IX-2M

New Product

PolyPhaser

Connectorised Surge Protectors Outdoor Twisted Pair Lightning Surge Protector, 2 Pair RS-232, UL 497B

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Datasheet

3In Stock

£117.61

£111.55

Min.: 1
Mult.: 1

Connectorised Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, 1.8GHz - 6GHz, DC Block, 10W, IP67, .5uJ, 18kA, Filter

LSXL
PolyPhaser
1: £100.81
8In Stock
New Product

Mfr. Part No.
LSXL

Mouser Part No
44-LSXL

New Product

PolyPhaser

Connectorised Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, 1.8GHz - 6GHz, DC Block, 10W, IP67, .5uJ, 18kA, Filter

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Datasheet

8In Stock

£100.81

£95.62

Min.: 1
Mult.: 1

Connectorised Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, DC - 2.4GHz, 50W, IP67, 60 V Max., 3mJ, 18kA, Gas Discharge Tube

RGT
PolyPhaser
1: £96.93
8In Stock
New Product

Mfr. Part No.
RGT

Mouser Part No
44-RGT

New Product

PolyPhaser

Connectorised Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, DC - 2.4GHz, 50W, IP67, 60 V Max., 3mJ, 18kA, Gas Discharge Tube

Learn More

Datasheet

8In Stock

£96.93

£91.94

Min.: 1
Mult.: 1

Connectorised Surge Protectors 7/16 F/F Bulkhead Coaxial RF Surge Protector, 698MHz - 2.7GHz, DC Block, 500W, IP67, .005uJ, 40kA, Filter, Low PIM, w/ Bracket

TSX-DFF-BF
PolyPhaser
1: £133.13
8In Stock
New Product

Mfr. Part No.
TSX-DFF-BF

Mouser Part No
44-TSX-DFF-BF

New Product

PolyPhaser

Connectorised Surge Protectors 7/16 F/F Bulkhead Coaxial RF Surge Protector, 698MHz - 2.7GHz, DC Block, 500W, IP67, .005uJ, 40kA, Filter, Low PIM, w/ Bracket

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Datasheet

8In Stock

£133.13

£126.27

Min.: 1
Mult.: 1

Connectorised 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: £113.73
7In Stock
New Product

Mfr. Part No.
TSX-NFF-P

Mouser Part No
44-TSX-NFF-P

New Product

PolyPhaser

Connectorised 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

7In Stock

£113.73

£107.88

Min.: 1
Mult.: 1

Circuit Breakers 508,DM,24VDC,CL,10-16-20,ATX

REX22D-TD1-100-DC24V-10A/16A/20A-E
E-T-A
1: £69.18
3In Stock
New Product

Mfr. Part No.
REX22D-TD1-100-DC24V-10A/16A/20A-E

Mouser Part No
457-REX22DTD1101620E

New Product

E-T-A

Circuit Breakers 508,DM,24VDC,CL,10-16-20,ATX

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Datasheet

3In Stock

£69.18

£57.16

£56.33

£53.12

Min.: 1
Mult.: 1

Circuit Breakers PTCB TM1 6A M1 NO P

1575572
Phoenix Contact
1: £21.48
6In Stock
38Expected 01/06/2026
New Product

Mfr. Part No.
1575572

Mouser Part No
651-1575572

New Product

Phoenix Contact

Circuit Breakers PTCB TM1 6A M1 NO P

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Datasheet

6In Stock

38Expected 01/06/2026

£21.48

Min.: 1
Mult.: 1

Circuit Breakers PTCB TM1 12A M1 NO P

1575581
Phoenix Contact
1: £21.48
40In Stock
New Product

Mfr. Part No.
1575581

Mouser Part No
651-1575581

New Product

Phoenix Contact

Circuit Breakers PTCB TM1 12A M1 NO P

Learn More

Datasheet

40In Stock

£21.48

Min.: 1
Mult.: 1

Circuit Protection

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