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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: 362,125

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Part #

Connectorized Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, 1.5MHz - 700MHz, DC Block, 3kW, 20uJ, 50kA, Blocking Cap, Hole Mount

IS-B50HN-C0
PolyPhaser
1: $180.95
9In Stock
16On Order
New Product

Mfr. Part #
IS-B50HN-C0

Mouser Part #
44-IS-B50HN-C0

New Product

PolyPhaser

Connectorized Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, 1.5MHz - 700MHz, DC Block, 3kW, 20uJ, 50kA, Blocking Cap, Hole Mount

Learn More

Datasheet

9In Stock

16On Order

$180.95

$171.63

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: $190.87
7In 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

7In Stock

$190.87

$181.04

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: $200.79
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

$200.79

$190.44

Min.: 1
Mult.: 1

Connectorized Surge Protectors Outdoor Twisted Pair Lightning Surge Protector, 5 Pair POTS, xDSL, UL 497B

IX-5T
PolyPhaser
1: $367.98
1In Stock
New Product

Mfr. Part #
IX-5T

Mouser Part #
44-IX-5T

New Product

PolyPhaser

Connectorized Surge Protectors Outdoor Twisted Pair Lightning Surge Protector, 5 Pair POTS, xDSL, UL 497B

Datasheet

1In Stock

$367.98

$352.41

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
4In 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

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Datasheet

4In 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: $906.12
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

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Datasheet

2In Stock

$906.12

$828.40

$763.08

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

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Datasheet

7In Stock

$133.23

$122.40

Min.: 1
Mult.: 1

Industrial Surge Protectors VAL-US-SPP-277/50/1+1-R

1790772
Phoenix Contact
1: $260.64
5In Stock
New Product

Mfr. Part #
1790772

Mouser Part #
651-1790772

New Product

Phoenix Contact

Industrial Surge Protectors VAL-US-SPP-277/50/1+1-R

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Datasheet

5In Stock

$260.64

Min.: 1
Mult.: 1

Varistors MLV, 1206, 35V

B72520X1350K062
TDK
1: $0.648
4,000In Stock
New Product

Mfr. Part #
B72520X1350K062

Mouser Part #
871-B72520X1350K062

New Product

TDK

Varistors MLV, 1206, 35V

Datasheet

4,000In Stock

Cut Tape

$0.648

$0.452

$0.348

$0.324

Reel

$0.255

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

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

108-1019A
PolyPhaser
1: $277.11
4In Stock
New Product

Mfr. Part #
108-1019A

Mouser Part #
44-108-1019A

New Product

PolyPhaser

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

Datasheet

4In Stock

$277.11

$265.39

Min.: 1
Mult.: 1

Connectorized 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: $258.94
4In Stock
New Product

Mfr. Part #
CGXZ+15NMNF-A

Mouser Part #
44-CGXZ+15NMNF-A

New Product

PolyPhaser

Connectorized 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

4In Stock

$258.94

$247.98

Min.: 1
Mult.: 1

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

GSA-KIT-D
PolyPhaser
1: $116.50
5In Stock
New Product

Mfr. Part #
GSA-KIT-D

Mouser Part #
44-GSA-KIT-D

New Product

PolyPhaser

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

Learn More

Datasheet

5In Stock

$116.50

$110.49

Min.: 1
Mult.: 1

Connectorized 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: $122.69
9In Stock
New Product

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

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

New Product

PolyPhaser

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

Learn More

Datasheet

9In Stock

$122.69

$116.37

Min.: 1
Mult.: 1

Connectorized 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: $161.12
4In Stock
New Product

Mfr. Part #
IS-50UX-C1-ME

Mouser Part #
44-IS-50UX-C1-ME

New Product

PolyPhaser

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

Datasheet

4In Stock

$161.12

$152.83

Min.: 1
Mult.: 1

Connectorized 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: $131.37
7In Stock
New Product

Mfr. Part #
IS-B50LN-C2-ME

Mouser Part #
44-IS-B50LN-C2-ME

New Product

PolyPhaser

Connectorized 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

7In Stock

$131.37

$124.60

Min.: 1
Mult.: 1

Connectorized 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: $270.22
5In Stock
New Product

Mfr. Part #
IS-NEMP-C2

Mouser Part #
44-IS-NEMP-C2

New Product

PolyPhaser

Connectorized 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

$270.22

$256.29

Min.: 1
Mult.: 1

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

IX-2M
PolyPhaser
1: $228.07
3In Stock
New Product

Mfr. Part #
IX-2M

Mouser Part #
44-IX-2M

New Product

PolyPhaser

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

Learn More

Datasheet

3In Stock

$228.07

$216.32

Min.: 1
Mult.: 1

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

LSXL
PolyPhaser
1: $193.35
7In Stock
New Product

Mfr. Part #
LSXL

Mouser Part #
44-LSXL

New Product

PolyPhaser

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

Learn More

Datasheet

7In Stock

$193.35

$183.40

Min.: 1
Mult.: 1

Connectorized 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: $188.40
9In Stock
New Product

Mfr. Part #
RGT

Mouser Part #
44-RGT

New Product

PolyPhaser

Connectorized 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

9In Stock

$188.40

$178.69

Min.: 1
Mult.: 1

Connectorized Surge Protectors Positive Train Control (PTC) Filter, Railroad RF Band Pass with Surge Protector, 160 MHz to 163 MHz, Type N F/F, 100W CW, IP67, 50uJ, 10kA

RRF-160-NFF
PolyPhaser
1: $536.07
1In Stock
New Product

Mfr. Part #
RRF-160-NFF

Mouser Part #
44-RRF-160-NFF

New Product

PolyPhaser

Connectorized Surge Protectors Positive Train Control (PTC) Filter, Railroad RF Band Pass with Surge Protector, 160 MHz to 163 MHz, Type N F/F, 100W CW, IP67, 50uJ, 10kA

Datasheet

1In Stock

$536.07

$513.40

Min.: 1
Mult.: 1

NTC Thermistors ESAPP-ESA PROBE-RTD PT1000, 1000mm

20016752-01
TE Connectivity
1: $1,369.54
1In Stock
New Product

Mfr. Part #
20016752-01

Mouser Part #
571-20016752-01

New Product

TE Connectivity

NTC Thermistors ESAPP-ESA PROBE-RTD PT1000, 1000mm

Learn More

Datasheet

1In Stock

$1,369.54

$1,252.07

$1,153.34

View

Min.: 1
Mult.: 1

Surge Protection Accessories Flange to Bulkhead Type N Adapter Kit

BFN
PolyPhaser
1: $42.24
60In Stock
25Expected 2026-08-14
New Product

Mfr. Part #
BFN

Mouser Part #
44-BFN

New Product

PolyPhaser

Surge Protection Accessories Flange to Bulkhead Type N Adapter Kit

Learn More

Datasheet

60In Stock

25Expected 2026-08-14

$42.24

$35.84

$34.23

$30.61

Min.: 1
Mult.: 1

Connectorized Surge Protectors 75 Ohm Type F F/F Bulkhead Coaxial RF Surge Protector, DC - 2.5GHz, 50W, IP67, 60 V Max., 10kA, Gas Discharge Tube

GT75-FFF
PolyPhaser
1: $262.77
5In Stock
17Expected 2026-08-14
New Product

Mfr. Part #
GT75-FFF

Mouser Part #
44-GT75-FFF

New Product

PolyPhaser

Connectorized Surge Protectors 75 Ohm Type F F/F Bulkhead Coaxial RF Surge Protector, DC - 2.5GHz, 50W, IP67, 60 V Max., 10kA, Gas Discharge Tube

Learn More

Datasheet

5In Stock

17Expected 2026-08-14

$262.77

$249.24

Min.: 1
Mult.: 1

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

IS-50NX-C0-MA
PolyPhaser
1: $153.69
7In Stock
3Expected 2026-08-21
New Product

Mfr. Part #
IS-50NX-C0-MA

Mouser Part #
44-IS-50NX-C0-MA

New Product

PolyPhaser

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

Learn More

Datasheet

7In Stock

3Expected 2026-08-21

$153.69

$145.77

Min.: 1
Mult.: 1

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

IS-B50LN-C0-MA
PolyPhaser
1: $161.12
9In Stock
New Product

Mfr. Part #
IS-B50LN-C0-MA

Mouser Part #
44-IS-B50LN-C0-MA

New Product

PolyPhaser

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

Learn More

Datasheet

9In Stock

$161.12

$152.83

Min.: 1
Mult.: 1

Circuit Protection

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