.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: 361,225

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 3KW,18V 5%, DFN6546A BIDIR TVS

3KDFN18CA-M3/H
Vishay Semiconductors
1: $2.26
3,000In Stock
New Product

Mfr. Part #
3KDFN18CA-M3/H

Mouser Part #
78-3KDFN18CA-M3/H

New Product

Vishay Semiconductors

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

Learn More

Datasheet

3,000In Stock

Cut Tape

$2.26

$1.44

$0.952

$0.746

Reel

$0.572

View

Min.: 1
Mult.: 1

: 1,500

ESD Protection Diodes / TVS Diodes 8W,54V 5%,SMD PAR

SM8S54AHM3/I
Vishay Semiconductors
1: $6.29
509In Stock
New Product

Mfr. Part #
SM8S54AHM3/I

Mouser Part #
78-SM8S54AHM3/I

New Product

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 8W,54V 5%,SMD PAR

Learn More

Datasheet

509In Stock

Cut Tape

$6.29

$4.16

$3.25

$2.89

Reel

$2.48

$2.33

Min.: 1
Mult.: 1

: 750

ESD Protection Diodes / TVS Diodes 8W,64V 5%,SMD PAR

SM8S64AHM3/I
Vishay Semiconductors
1: $5.70
511In Stock
New Product

Mfr. Part #
SM8S64AHM3/I

Mouser Part #
78-SM8S64AHM3/I

New Product

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 8W,64V 5%,SMD PAR

Learn More

Datasheet

511In Stock

Cut Tape

$5.70

$3.73

$2.76

$2.46

Reel

$2.10

$1.99

Min.: 1
Mult.: 1

: 750

ESD Protection Diodes / TVS Diodes Diode, TVS, uni-dir, 1000W, 11V, 5%, SMB (DO-214AA), auto-grade

SMB10J11AHE3_B/I
Vishay Semiconductors
1: $1.48
2,240In Stock
New Product

Mfr. Part #
SMB10J11AHE3_B/I

Mouser Part #
78-SMB10J11AHE3_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

$1.48

$0.933

$0.611

$0.471

Reel

$0.37

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,200

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

SMB10J20AHE3_B/I
Vishay Semiconductors
1: $1.48
2,240In Stock
New Product

Mfr. Part #
SMB10J20AHE3_B/I

Mouser Part #
78-SMB10J20AHE3_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

$1.48

$0.933

$0.611

$0.471

Reel

$0.37

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,200

ESD Protection Diodes / TVS Diodes 400W,39V5%,SMFBIDIRTVS

T4F39CAHM3/I
Vishay Semiconductors
1: $0.691
10,000In Stock
New Product

Mfr. Part #
T4F39CAHM3/I

Mouser Part #
78-T4F39CAHM3/I

New Product

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 400W,39V5%,SMFBIDIRTVS

Learn More

Datasheet

10,000In Stock

Cut Tape

$0.691

$0.474

$0.268

$0.212

Reel

$0.13

View

Min.: 1
Mult.: 1

: 10,000

ESD Protection Diodes / TVS Diodes ESD PROTECTION DIODE SOT323

VCAN26C2-03GHE3A08
Vishay
1: $0.706
5,230In Stock
New Product

Mfr. Part #
VCAN26C2-03GHE3A08

Mouser Part #
78-VCAN26C2-03HE3A08

New Product

Vishay

ESD Protection Diodes / TVS Diodes ESD PROTECTION DIODE SOT323

Datasheet

5,230In Stock

Cut Tape

$0.706

$0.477

$0.271

$0.213

Reel

$0.151

View

Min.: 1
Mult.: 1

: 3,000

Connectorized 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: $247.90
1In Stock
4Expected 2026-06-12
New Product

Mfr. Part #
109-0501W-D

Mouser Part #
44-109-0501W-D

New Product

PolyPhaser

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

Datasheet

1In Stock

4Expected 2026-06-12

$247.90

$235.12

Min.: 1
Mult.: 1

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

AL-LSXM-MA
PolyPhaser
1: $102.72
8In Stock
New Product

Mfr. Part #
AL-LSXM-MA

Mouser Part #
44-AL-LSXM-MA

New Product

PolyPhaser

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

Learn More

Datasheet

8In Stock

$102.72

$97.24

Min.: 1
Mult.: 1

Connectorized Surge Protectors Type N F/M Coaxial RF Surge Protector, 800MHz - 2.5GHz, 300W, IP67, 6 V Max., 175uJ, 20kA, Hybrid, Bracket Down, Hole Mount

DGXZ+06NFNM-A
PolyPhaser
1: $245.43
8In Stock
New Product

Mfr. Part #
DGXZ+06NFNM-A

Mouser Part #
44-DGXZ+06NFNM-A

New Product

PolyPhaser

Connectorized Surge Protectors Type N F/M Coaxial RF Surge Protector, 800MHz - 2.5GHz, 300W, IP67, 6 V Max., 175uJ, 20kA, Hybrid, Bracket Down, Hole Mount

Learn More

Datasheet

8In Stock

$245.43

$232.79

Min.: 1
Mult.: 1

Connectorized Surge Protectors TNC F/F Coaxial RF Surge Protector, 800MHz - 2.5GHz, 300W, IP67, 6 V Max., 175uJ, 20kA, Hybrid, Bracket Down, Hole Mount

DGXZ+06TFTF-A
PolyPhaser
1: $235.50
2In Stock
10Expected 2026-06-19
New Product

Mfr. Part #
DGXZ+06TFTF-A

Mouser Part #
44-DGXZ+06TFTF-A

New Product

PolyPhaser

Connectorized Surge Protectors TNC F/F Coaxial RF Surge Protector, 800MHz - 2.5GHz, 300W, IP67, 6 V Max., 175uJ, 20kA, Hybrid, Bracket Down, Hole Mount

Learn More

Datasheet

2In Stock

10Expected 2026-06-19

$235.50

$223.37

Min.: 1
Mult.: 1

Connectorized 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: $277.11
5In Stock
New Product

Mfr. Part #
DGXZ-60NFNF-A

Mouser Part #
44-DGXZ-60NFNF-A

New Product

PolyPhaser

Connectorized 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

5In Stock

$277.11

$265.39

Min.: 1
Mult.: 1

Connectorized 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: $111.72
6In Stock
10On Order
New Product

Mfr. Part #
DT-NFF

Mouser Part #
44-DT-NFF

New Product

PolyPhaser

Connectorized 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

6In Stock

10On Order

$111.72

$105.75

Min.: 1
Mult.: 1

Connectorized 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: $114.02
15In Stock
11Expected 2026-06-23
New Product

Mfr. Part #
GTH-NFF-AL

Mouser Part #
44-GTH-NFF-AL

New Product

PolyPhaser

Connectorized 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

15In Stock

11Expected 2026-06-23

$114.02

$108.14

Min.: 1
Mult.: 1

Connectorized 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: $370.25
5In Stock
New Product

Mfr. Part #
HT-RO-TSX-DCDFM

Mouser Part #
44-HT-RO-TSX-DCDFM

New Product

PolyPhaser

Connectorized 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

$370.25

$354.59

Min.: 1
Mult.: 1

Connectorized 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: $188.40
8In Stock
New Product

Mfr. Part #
IS-B50HN-C2-ME

Mouser Part #
44-IS-B50HN-C2-ME

New Product

PolyPhaser

Connectorized 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

8In Stock

$188.40

$178.69

Min.: 1
Mult.: 1

Connectorized 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: $180.95
5In Stock
New Product

Mfr. Part #
IS-B50LU-C0-MA

Mouser Part #
44-IS-B50LU-C0-MA

New Product

PolyPhaser

Connectorized 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

$180.95

$171.63

Min.: 1
Mult.: 1

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

REX22D-TA1-100-DC24V-12A-E
E-T-A
1: $126.09
5In Stock
124Expected 2026-07-20
New Product

Mfr. Part #
REX22D-TA1-100-DC24V-12A-E

Mouser Part #
457-REX22DTA112E

New Product

E-T-A

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

Learn More

Datasheet

5In Stock

124Expected 2026-07-20

$126.09

$103.78

$102.25

$96.45

Min.: 1
Mult.: 1

Circuit Breakers 508,DM,24VDC,CL,2-3-3.6,CL2,ATX

REX22D-TD2-100-DC24V-2A/3A/3,6A-CL2-E
E-T-A
1: $152.96
3In Stock
New Product

Mfr. Part #
REX22D-TD2-100-DC24V-2A/3A/3,6A-CL2-E

Mouser Part #
457-REX22DTD22336CLE

New Product

E-T-A

Circuit Breakers 508,DM,24VDC,CL,2-3-3.6,CL2,ATX

Learn More

Datasheet

3In Stock

$152.96

$127.73

$118.70

Min.: 1
Mult.: 1

NTC Thermistors ESA PROBE-RTD PT1000 3000mm ENG MODEL

10219128-03
TE Connectivity
1: $536.66
2In Stock
New Product

Mfr. Part #
10219128-03

Mouser Part #
571-10219128-03

New Product

TE Connectivity

NTC Thermistors ESA PROBE-RTD PT1000 3000mm ENG MODEL

Learn More

Datasheet

2In Stock

$536.66

$530.42

$526.09

View

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes 5 V, 0.45 pF, 15 kV, SOD883

SC3402-02ETG
Littelfuse
1: $0.778
10,063In Stock
New Product

Mfr. Part #
SC3402-02ETG

Mouser Part #
576-SC3402-02ETG

New Product

Littelfuse

ESD Protection Diodes / TVS Diodes 5 V, 0.45 pF, 15 kV, SOD883

Learn More

Datasheet

10,063In Stock

Cut Tape

$0.778

$0.49

$0.311

$0.253

Reel

$0.154

View

MouseReel Available

Min.: 1
Mult.: 1

: 10,000

NTC Thermistors NTC Mini Ni 0.4 ld 10K 1 % blk 0.4e/1e A

NTCLE213E3103FLB0A
Vishay / BC Components
1: $2.40
912In Stock
New Product

Mfr. Part #
NTCLE213E3103FLB0A

Mouser Part #
594-NTCLE213E313FLB

New Product

Vishay / BC Components

NTC Thermistors NTC Mini Ni 0.4 ld 10K 1 % blk 0.4e/1e A

Datasheet

912In Stock

$2.40

$1.80

$1.44

$1.36

View

Min.: 1
Mult.: 1

Industrial Surge Protectors VAL-SPP-T2-335-1+0-UT

1466558
Phoenix Contact
1: $133.23
7In Stock
New Product

Mfr. Part #
1466558

Mouser Part #
651-1466558

New Product

Phoenix Contact

Industrial Surge Protectors VAL-SPP-T2-335-1+0-UT

Learn More

Datasheet

7In Stock

$133.23

$122.40

Min.: 1
Mult.: 1

Circuit Breakers PTCB TM1 1A F2 NO P

1509519
Phoenix Contact
1: $52.55
40In Stock
New Product

Mfr. Part #
1509519

Mouser Part #
651-1509519

New Product

Phoenix Contact

Circuit Breakers PTCB TM1 1A F2 NO P

Learn More

Datasheet

40In Stock

$52.55

Min.: 1
Mult.: 1

Circuit Breaker Accessories PTCB BE PT 6

1567576
Phoenix Contact
1: $18.19
108In Stock
New Product

Mfr. Part #
1567576

Mouser Part #
651-1567576

New Product

Phoenix Contact

Circuit Breaker Accessories PTCB BE PT 6

Learn More

Datasheet

108In Stock

$18.19

$15.84

Min.: 1
Mult.: 1

Circuit Protection

Types of Circuit Protection

Mouser Electronics®

Company

Resources

Support