.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: 359,642

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 #

Connectorized 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: NT$3,826.27
8In Stock
5Expected 8/28/2026
New Product

Mfr. Part #
IS-B50HN-C2-MA

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

New Product

PolyPhaser

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

Learn More

Datasheet

8In Stock

5Expected 8/28/2026

NT$3,826.27

NT$3,629.10

Min.: 1
Mult.: 1

Connectorized 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: NT$6,356.92
5In Stock
New Product

Mfr. Part #
IS-NEMP-C0-MA

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

New Product

PolyPhaser

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

Learn More

Datasheet

5In Stock

NT$6,356.92

NT$6,029.61

Min.: 1
Mult.: 1

Connectorized 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: NT$5,677.92
10In Stock
New Product

Mfr. Part #
RGT-DFM

Mouser Part #
44-RGT-DFM

New Product

PolyPhaser

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

Learn More

Datasheet

10In Stock

NT$5,677.92

NT$5,385.39

Min.: 1
Mult.: 1

Connectorized 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: NT$6,603.57
5In Stock
21Expected 9/7/2026
New Product

Mfr. Part #
TSX-NFF-HL

Mouser Part #
44-TSX-NFF-HL

New Product

PolyPhaser

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

Datasheet

5In Stock

21Expected 9/7/2026

NT$6,603.57

NT$6,263.35

Min.: 1
Mult.: 1

Connectorized 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: NT$7,068.54
1In Stock
New Product

Mfr. Part #
TSX-NFM-G

Mouser Part #
44-TSX-NFM-G

New Product

PolyPhaser

Connectorized 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

NT$7,068.54

NT$6,769.56

Min.: 1
Mult.: 1

Connectorized 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: NT$9,048.18
5In Stock
New Product

Mfr. Part #
TSXDC-4310FM

Mouser Part #
44-TSXDC-4310FM

New Product

PolyPhaser

Connectorized 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

Learn More

Datasheet

5In Stock

NT$9,048.18

NT$8,665.30

Min.: 1
Mult.: 1

Connectorized 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: NT$7,011.90
7In Stock
New Product

Mfr. Part #
TUSX-DFM

Mouser Part #
44-TUSX-DFM

New Product

PolyPhaser

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

Learn More

Datasheet

7In Stock

NT$7,011.90

NT$6,715.42

Min.: 1
Mult.: 1

Connectorized Surge Protectors 4.3-10 M/F Coaxial RF Surge Protector, 100MHz - 520MHz, DC Block, 750W, 20kA, Bracket Up

VHF50B43-MA-BU
PolyPhaser
1: NT$7,860.47
1In Stock
New Product

Mfr. Part #
VHF50B43-MA-BU

Mouser Part #
44-VHF50B43-MA-BU

New Product

PolyPhaser

Connectorized Surge Protectors 4.3-10 M/F Coaxial RF Surge Protector, 100MHz - 520MHz, DC Block, 750W, 20kA, Bracket Up

Datasheet

1In Stock

NT$7,860.47

NT$7,527.78

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: NT$3,807.99
4In Stock
New Product

Mfr. Part #
REX22D-TD2-100-DC24V-1A/2A/4A-E

Mouser Part #
457-REX22DTD2124E

New Product

E-T-A

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

Learn More

Datasheet

4In Stock

NT$3,807.99

NT$3,179.90

NT$2,955.12

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: NT$3,807.99
7In Stock
New Product

Mfr. Part #
REX22D-TD2-100-DC24V-6A/8A/10A-E

Mouser Part #
457-REX22DTD26810E

New Product

E-T-A

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

Learn More

Datasheet

7In Stock

NT$3,807.99

NT$3,179.90

NT$2,955.12

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: NT$3,721.95
4In Stock
New Product

Mfr. Part #
REX22D-TE2-100-DC24V-1A-10A-E

Mouser Part #
457-REX22DTE21A10AE

New Product

E-T-A

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

Learn More

Datasheet

4In Stock

NT$3,721.95

NT$3,102.46

NT$2,888.79

Min.: 1
Mult.: 1

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

4SMF10CA-M3/I
Vishay Semiconductors
1: NT$17.57
7,932In Stock
New Product

Mfr. Part #
4SMF10CA-M3/I

Mouser Part #
78-4SMF10CA-M3/I

New Product

Vishay Semiconductors

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

Datasheet

7,932In Stock

Cut Tape

NT$17.57

NT$12.12

NT$5.95

NT$4.95

Reel

NT$2.26

View

Min.: 1
Mult.: 1

: 10,000

NTC Thermistors SMD NTC Thermistor 0603 10kOhm 3% B-3624 soft

B57343V6103H360
TDK
1: NT$13.62
2,800In Stock
New Product

Mfr. Part #
B57343V6103H360

Mouser Part #
871-B57343V6103H360

New Product

TDK

NTC Thermistors SMD NTC Thermistor 0603 10kOhm 3% B-3624 soft

Datasheet

2,800In Stock

Cut Tape

NT$13.62

NT$12.73

NT$11.26

NT$10.72

Reel

NT$8.14

View

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

NTC Thermistors SMD NTC Thermistor 1206 5kOhm 3% B-3455 HT Series

B57621C5502H062
TDK
1: NT$37.28
2,800In Stock
New Product

Mfr. Part #
B57621C5502H062

Mouser Part #
871-B57621C5502H062

New Product

TDK

NTC Thermistors SMD NTC Thermistor 1206 5kOhm 3% B-3455 HT Series

Datasheet

2,800In Stock

Cut Tape

NT$37.28

NT$28.11

NT$22.51

NT$21.15

View

Reel

NT$14.95

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Surge Protection Accessories Flange to Bulkhead Type 4.3-10 Adapter Kit

BF4310
PolyPhaser
1: NT$1,905.79
10In Stock
New Product

Mfr. Part #
BF4310

Mouser Part #
44-BF4310

New Product

PolyPhaser

Surge Protection Accessories Flange to Bulkhead Type 4.3-10 Adapter Kit

Learn More

Datasheet

10In Stock

NT$1,905.79

NT$1,789.63

NT$1,731.91

Min.: 1
Mult.: 1

Surge Protection Accessories Kit Flange to Bulkhead DIN Adapter

BFD
PolyPhaser
1: NT$1,417.87
24In Stock
New Product

Mfr. Part #
BFD

Mouser Part #
44-BFD

New Product

PolyPhaser

Surge Protection Accessories Kit Flange to Bulkhead DIN Adapter

Learn More

Datasheet

24In Stock

NT$1,417.87

NT$1,322.87

NT$1,267.66

NT$1,267.30

Quote

Min.: 1
Mult.: 1

Connectorized Surge Protectors Type N F/F Coaxial RF Surge Protector, 40MHz - 400MHz, 100W, IP67, 60 V Max., 2.5mJ, 20kA, Hybrid, Bracket Down, Hole Mount

BGXZ-60NFNF-ALT
PolyPhaser
1: NT$6,446.55
7In Stock
55On Order
New Product

Mfr. Part #
BGXZ-60NFNF-ALT

Mouser Part #
44-BGXZ-60NFNF-ALT

New Product

PolyPhaser

Connectorized Surge Protectors Type N F/F Coaxial RF Surge Protector, 40MHz - 400MHz, 100W, IP67, 60 V Max., 2.5mJ, 20kA, Hybrid, Bracket Down, Hole Mount

Learn More

Datasheet

7In Stock

55On Order

NT$6,446.55

NT$6,173.73

Min.: 1
Mult.: 1

Connectorized Surge Protectors Type N F/M Coaxial RF Surge Protector, 40MHz - 400MHz, 100W, IP67, 60 V Max., 2.5mJ, 20kA, Hybrid, Bracket Down, Hole Mount

BGXZ-60NFNM-ALT
PolyPhaser
1: NT$6,672.76
1In Stock
New Product

Mfr. Part #
BGXZ-60NFNM-ALT

Mouser Part #
44-BGXZ-60NFNM-ALT

New Product

PolyPhaser

Connectorized Surge Protectors Type N F/M Coaxial RF Surge Protector, 40MHz - 400MHz, 100W, IP67, 60 V Max., 2.5mJ, 20kA, Hybrid, Bracket Down, Hole Mount

Learn More

Datasheet

1In Stock

NT$6,672.76

NT$6,390.26

Min.: 1
Mult.: 1

Connectorized Surge Protectors Type N F/F Coaxial RF Surge Protector, 800MHz - 2.5GHz, 300W, IP67, 24 V Max., 25uJ, 20kA, Hybrid, Bracket Down, Hole Mount

DGXJ+24NFNF-A
PolyPhaser
1: NT$6,850.58
3In Stock
New Product

Mfr. Part #
DGXJ+24NFNF-A

Mouser Part #
44-DGXJ+24NFNF-A

New Product

PolyPhaser

Connectorized Surge Protectors Type N F/F Coaxial RF Surge Protector, 800MHz - 2.5GHz, 300W, IP67, 24 V Max., 25uJ, 20kA, Hybrid, Bracket Down, Hole Mount

Learn More

Datasheet

3In Stock

NT$6,850.58

NT$6,497.81

Min.: 1
Mult.: 1

Connectorized Surge Protectors Type N/SMA F/F Bulkhead Coaxial RF Surge Protector, 700MHz - 2.7GHz, DC Block, 300W, IP67, .5uJ, 18kA, Filter

DSXL-NS
PolyPhaser
1: NT$6,048.25
10In Stock
New Product

Mfr. Part #
DSXL-NS

Mouser Part #
44-DSXL-NS

New Product

PolyPhaser

Connectorized Surge Protectors Type N/SMA F/F Bulkhead Coaxial RF Surge Protector, 700MHz - 2.7GHz, DC Block, 300W, IP67, .5uJ, 18kA, Filter

Datasheet

10In Stock

NT$6,048.25

NT$5,736.72

Min.: 1
Mult.: 1

Connectorized Surge Protectors 7/16 F/M Bulkhead Coaxial RF Surge Protector, 698MHz - 2.7GHz, 1.5kW, IP67, 30 V Max., 25mJ, 30kA, Filter, Low PIM -155 dBc

ESXDC-DFM
PolyPhaser
1: NT$6,842.33
5In Stock
New Product

Mfr. Part #
ESXDC-DFM

Mouser Part #
44-ESXDC-DFM

New Product

PolyPhaser

Connectorized Surge Protectors 7/16 F/M Bulkhead Coaxial RF Surge Protector, 698MHz - 2.7GHz, 1.5kW, IP67, 30 V Max., 25mJ, 30kA, Filter, Low PIM -155 dBc

Learn More

Datasheet

5In Stock

NT$6,842.33

NT$6,553.02

Min.: 1
Mult.: 1

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

GT-TFM-AL
PolyPhaser
1: NT$3,517.60
5In Stock
New Product

Mfr. Part #
GT-TFM-AL

Mouser Part #
44-GT-TFM-AL

New Product

PolyPhaser

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

Learn More

Datasheet

5In Stock

NT$3,517.60

NT$3,336.20

Min.: 1
Mult.: 1

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

IS-50NX-C2-MA
PolyPhaser
1: NT$3,054.42
17In Stock
New Product

Mfr. Part #
IS-50NX-C2-MA

Mouser Part #
44-IS-50NX-C2-MA

New Product

PolyPhaser

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

Learn More

Datasheet

17In Stock

NT$3,054.42

NT$2,897.04

Min.: 1
Mult.: 1

Connectorized Surge Protectors Outdoor Twisted Pair Lightning Surge Protector, 2 Pair Dual Telco Trunk, UL 497B

IX-2T
PolyPhaser
1: NT$6,559.47
1In Stock
New Product

Mfr. Part #
IX-2T

Mouser Part #
44-IX-2T

New Product

PolyPhaser

Connectorized Surge Protectors Outdoor Twisted Pair Lightning Surge Protector, 2 Pair Dual Telco Trunk, UL 497B

Datasheet

1In Stock

NT$6,559.47

NT$6,282.00

Min.: 1
Mult.: 1

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

RGT-DFF
PolyPhaser
1: NT$4,504.91
6In Stock
7Expected 9/4/2026
New Product

Mfr. Part #
RGT-DFF

Mouser Part #
44-RGT-DFF

New Product

PolyPhaser

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

Learn More

Datasheet

6In Stock

7Expected 9/4/2026

NT$4,504.91

NT$4,272.96

Min.: 1
Mult.: 1

Circuit Protection

Types of Circuit Protection

Customer Service Office

Company

Resources

Support