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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 #

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

IS-B50HN-C2-MA
PolyPhaser
1: £80.13
13In Stock
New Product

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

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

New Product

PolyPhaser

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

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Datasheet

13In Stock

£80.13

£76.00

Min.: 1
Mult.: 1

Connectorised Surge Protectors Type N M/F Coaxial RF Surge Protector, 1.5MHz - 700MHz, DC Block, 500W, 25uJ, 50kA, Blocking Cap, Bracket Up, Hole Mount

IS-NEMP-C0-MA
PolyPhaser
1: £133.13
4In Stock
New Product

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

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

New Product

PolyPhaser

Connectorised Surge Protectors Type N M/F Coaxial RF Surge Protector, 1.5MHz - 700MHz, DC Block, 500W, 25uJ, 50kA, Blocking Cap, Bracket Up, Hole Mount

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Datasheet

4In Stock

£133.13

£126.27

Min.: 1
Mult.: 1

Connectorised Surge Protectors 7/16 M/F Bulkhead Coaxial RF Surge Protector, DC - 2.7GHz, 400W, IP67, 60 V Max., 420uJ, 20kA, Gas Discharge Tube

RGT-DFM
PolyPhaser
1: £116.32
8In Stock
New Product

Mfr. Part No.
RGT-DFM

Mouser Part No
44-RGT-DFM

New Product

PolyPhaser

Connectorised Surge Protectors 7/16 M/F Bulkhead Coaxial RF Surge Protector, DC - 2.7GHz, 400W, IP67, 60 V Max., 420uJ, 20kA, Gas Discharge Tube

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Datasheet

8In Stock

£116.32

£110.33

Min.: 1
Mult.: 1

Connectorised Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, 698MHz - 2.7GHz, DC Block, Low PIM, Hazardous Location

TSX-NFF-HL
PolyPhaser
1: £137.00
3In Stock
4Expected 29/06/2026
New Product

Mfr. Part No.
TSX-NFF-HL

Mouser Part No
44-TSX-NFF-HL

New Product

PolyPhaser

Connectorised Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, 698MHz - 2.7GHz, DC Block, Low PIM, Hazardous Location

Datasheet

3In Stock

4Expected 29/06/2026

£137.00

£129.95

Min.: 1
Mult.: 1

Connectorised Surge Protectors Type N F/M Bulkhead Coaxial RF Surge Protector, 698MHz - 2.7GHz, DC Block, 500W, IP67, .005uJ, 40kA, Filter, Gold-Plated Pins

TSX-NFM-G
PolyPhaser
1: £136.19
1In Stock
New Product

Mfr. Part No.
TSX-NFM-G

Mouser Part No
44-TSX-NFM-G

New Product

PolyPhaser

Connectorised Surge Protectors Type N F/M Bulkhead Coaxial RF Surge Protector, 698MHz - 2.7GHz, DC Block, 500W, IP67, .005uJ, 40kA, Filter, Gold-Plated Pins

Datasheet

1In Stock

£136.19

£130.43

Min.: 1
Mult.: 1

Connectorised Surge Protectors 4.3-10 F/M Bulkhead Coaxial RF Surge Protector, 698MHz - 2.7GHz, 500W, IP67, 80 V Max., 1mJ, 40kA, Filter, Low PIM

TSXDC-4310FM
PolyPhaser
1: £189.49
4In Stock
New Product

Mfr. Part No.
TSXDC-4310FM

Mouser Part No
44-TSXDC-4310FM

New Product

PolyPhaser

Connectorised Surge Protectors 4.3-10 F/M Bulkhead Coaxial RF Surge Protector, 698MHz - 2.7GHz, 500W, IP67, 80 V Max., 1mJ, 40kA, Filter, Low PIM

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Datasheet

4In Stock

£189.49

£181.47

Min.: 1
Mult.: 1

Connectorised Surge Protectors 7/16 F/M Bulkhead Coaxial RF Surge Protector, 300MHz - 1.2GHz, DC Block, 2,500W, IP67, .005uJ, 40kA, Filter, Low PIM

TUSX-DFM
PolyPhaser
1: £146.85
6In Stock
New Product

Mfr. Part No.
TUSX-DFM

Mouser Part No
44-TUSX-DFM

New Product

PolyPhaser

Connectorised Surge Protectors 7/16 F/M Bulkhead Coaxial RF Surge Protector, 300MHz - 1.2GHz, DC Block, 2,500W, IP67, .005uJ, 40kA, Filter, Low PIM

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Datasheet

6In Stock

£146.85

£140.64

Min.: 1
Mult.: 1

Connectorised Surge Protectors 7/16 M/F Coaxial RF Surge Protector, 100MHz - 512MHz, DC Block, 750W, IP67, .5uJ, 20kA, Filter, Bracket Down, Hole Mount

VHF50HD-MA
PolyPhaser
1: £144.76
8In Stock
New Product

Mfr. Part No.
VHF50HD-MA

Mouser Part No
44-VHF50HD-MA

New Product

PolyPhaser

Connectorised Surge Protectors 7/16 M/F Coaxial RF Surge Protector, 100MHz - 512MHz, DC Block, 750W, IP67, .5uJ, 20kA, Filter, Bracket Down, Hole Mount

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Datasheet

8In Stock

£144.76

£137.31

Min.: 1
Mult.: 1

Circuit Breakers 508,DM,24VDC,CL,1-2-4,ATX,

REX22D-TD2-100-DC24V-1A/2A/4A-E
E-T-A
1: £79.75
4In Stock
New Product

Mfr. Part No.
REX22D-TD2-100-DC24V-1A/2A/4A-E

Mouser Part No
457-REX22DTD2124E

New Product

E-T-A

Circuit Breakers 508,DM,24VDC,CL,1-2-4,ATX,

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Datasheet

4In Stock

£79.75

£66.59

£61.89

Min.: 1
Mult.: 1

Circuit Breakers 508,DM,24VDC,CL,6-8-10,ATX

REX22D-TD2-100-DC24V-6A/8A/10A-E
E-T-A
1: £79.75
6In Stock
New Product

Mfr. Part No.
REX22D-TD2-100-DC24V-6A/8A/10A-E

Mouser Part No
457-REX22DTD26810E

New Product

E-T-A

Circuit Breakers 508,DM,24VDC,CL,6-8-10,ATX

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Datasheet

6In Stock

£79.75

£66.59

£61.89

Min.: 1
Mult.: 1

Circuit Breakers 508,DM,24VDC,CL,2CH,1-10A,ATX

REX22D-TE2-100-DC24V-1A-10A-E
E-T-A
1: £77.95
4In Stock
New Product

Mfr. Part No.
REX22D-TE2-100-DC24V-1A-10A-E

Mouser Part No
457-REX22DTE21A10AE

New Product

E-T-A

Circuit Breakers 508,DM,24VDC,CL,2CH,1-10A,ATX

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Datasheet

4In Stock

£77.95

£64.97

£60.50

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors NTC FLEX20 10k 3% 3960K 25mm

NTCAFLEX20103HH
Vishay
1: £2.29
229In Stock
New Product

Mfr. Part No.
NTCAFLEX20103HH

Mouser Part No
594-NTCAFLEX20103HH

New Product

Vishay

NTC (Negative Temperature Coefficient) Thermistors NTC FLEX20 10k 3% 3960K 25mm

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Datasheet

229In Stock

£2.29

£1.67

£1.26

£1.11

View

Min.: 1
Mult.: 1

Resettable Fuses - PPTC 2920 Resettable SMD PPTC 0.75A/72V

MF-LSMF075/72X-2
Bourns
1: £0.759
2,800In Stock
New Product

Mfr. Part No.
MF-LSMF075/72X-2

Mouser Part No
652-MF-LSMF075/72X-2

New Product

Bourns

Resettable Fuses - PPTC 2920 Resettable SMD PPTC 0.75A/72V

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Datasheet

2,800In Stock

Cut Tape

£0.759

£0.569

£0.431

£0.417

View

Reel

£0.257

Min.: 1
Mult.: 1

: 4,000

ESD Protection Diodes / TVS Diodes

2KDFN13A-M3/H
Vishay Semiconductors
1: £0.908
3,000In Stock
New Product

Mfr. Part No.
2KDFN13A-M3/H

Mouser Part No
78-2KDFN13A-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

2KDFN15A-M3/H
Vishay Semiconductors
1: £0.908
3,000In Stock
New Product

Mfr. Part No.
2KDFN15A-M3/H

Mouser Part No
78-2KDFN15A-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

2KDFN16A-M3/H
Vishay Semiconductors
1: £0.908
3,000In Stock
New Product

Mfr. Part No.
2KDFN16A-M3/H

Mouser Part No
78-2KDFN16A-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

2KDFN16CA-M3/H
Vishay Semiconductors
1: £0.89
3,000In Stock
New Product

Mfr. Part No.
2KDFN16CA-M3/H

Mouser Part No
78-2KDFN16CA-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

2KDFN18CA-M3/H
Vishay Semiconductors
1: £0.89
3,000In Stock
New Product

Mfr. Part No.
2KDFN18CA-M3/H

Mouser Part No
78-2KDFN18CA-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 3KW,12V 5%, DFN6546A BIDIR TVS

3KDFN12CA-M3/H
Vishay Semiconductors
1: £1.18
2,970In Stock
New Product

Mfr. Part No.
3KDFN12CA-M3/H

Mouser Part No
78-3KDFN12CA-M3/H

New Product

Vishay Semiconductors

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

Learn More

Datasheet

2,970In Stock

Cut Tape

£1.18

£0.749

£0.496

£0.388

Reel

£0.298

View

Min.: 1
Mult.: 1

: 1,500

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

3KDFN22CA-M3/H
Vishay Semiconductors
1: £1.18
3,000In Stock
New Product

Mfr. Part No.
3KDFN22CA-M3/H

Mouser Part No
78-3KDFN22CA-M3/H

New Product

Vishay Semiconductors

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

Learn More

Datasheet

3,000In Stock

Cut Tape

£1.18

£0.749

£0.496

£0.388

Reel

£0.298

View

Min.: 1
Mult.: 1

: 1,500

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

3KDFN24CA-M3/H
Vishay Semiconductors
1: £1.18
3,000In Stock
New Product

Mfr. Part No.
3KDFN24CA-M3/H

Mouser Part No
78-3KDFN24CA-M3/H

New Product

Vishay Semiconductors

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

Learn More

Datasheet

3,000In Stock

Cut Tape

£1.18

£0.749

£0.496

£0.388

Reel

£0.298

View

Min.: 1
Mult.: 1

: 1,500

ESD Protection Diodes / TVS Diodes 400W,10V5%,SMFBIDIRTVS

4SMF10CA-M3/I
Vishay Semiconductors
1: £0.368
6,948In Stock
New Product

Mfr. Part No.
4SMF10CA-M3/I

Mouser Part No
78-4SMF10CA-M3/I

New Product

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 400W,10V5%,SMFBIDIRTVS

Datasheet

6,948In Stock

Cut Tape

£0.368

£0.254

£0.125

£0.104

Reel

£0.047

View

Min.: 1
Mult.: 1

: 10,000

ESD Protection Diodes / TVS Diodes 8W,75V 5%,SMD PAR

SM8S75AHM3/I
Vishay Semiconductors
1: £3.28
525In Stock
New Product

Mfr. Part No.
SM8S75AHM3/I

Mouser Part No
78-SM8S75AHM3/I

New Product

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 8W,75V 5%,SMD PAR

Learn More

Datasheet

525In Stock

Cut Tape

£3.28

£2.17

£1.69

£1.51

Reel

£1.29

£1.21

Min.: 1
Mult.: 1

: 750

ESD Protection Diodes / TVS Diodes 400W,36V5%,SMFBIDIRTVS

T4F36CAHM3/I
Vishay Semiconductors
1: £0.361
7,000In Stock
New Product

Mfr. Part No.
T4F36CAHM3/I

Mouser Part No
78-T4F36CAHM3/I

New Product

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 400W,36V5%,SMFBIDIRTVS

Learn More

Datasheet

7,000In Stock

Cut Tape

£0.361

£0.247

£0.14

£0.11

Reel

£0.067

View

Min.: 1
Mult.: 1

: 10,000

ESD Protection Diodes / TVS Diodes ESD PROTECTION DIODE SOT323

VCAN33A2-03GHE3A08
Vishay
1: £0.33
10,533In Stock
New Product

Mfr. Part No.
VCAN33A2-03GHE3A08

Mouser Part No
78-VCAN33A2-03HE3A08

New Product

Vishay

ESD Protection Diodes / TVS Diodes ESD PROTECTION DIODE SOT323

Datasheet

10,533In Stock

Cut Tape

£0.33

£0.212

£0.126

£0.095

Reel

£0.07

View

Min.: 1
Mult.: 1

: 3,000

Circuit Protection

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