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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: 359,631

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Part #

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

IX-2M
PolyPhaser
1: $158.38
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

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Datasheet

3In Stock

$158.38

$150.22

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: $135.99
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

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Datasheet

7In Stock

$135.99

$128.99

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: $130.83
10In 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

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Datasheet

10In Stock

$130.83

$124.09

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: $372.27
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

$372.27

$356.53

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: $92.14
8In Stock
New Product

Mfr. Part #
REX22D-TD1-100-DC24V-10A/16A/20A-E

Mouser Part #
457-REX22DTD1101620E

New Product

E-T-A

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

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Datasheet

8In Stock

$92.14

$76.13

$75.03

$70.76

Min.: 1
Mult.: 1

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

20016752-01
TE Connectivity
1: $951.07
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

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Datasheet

1In Stock

$951.07

$869.49

$800.93

View

Min.: 1
Mult.: 1

NTC Thermistors NTC LUG M5 10k 1% G24 64mm A

NTCALUG54A103F640A
Vishay / BC Components
1: $3.08
380In Stock
New Product

Mfr. Part #
NTCALUG54A103F640A

Mouser Part #
594-NTCALUG54A103F6

New Product

Vishay / BC Components

NTC Thermistors NTC LUG M5 10k 1% G24 64mm A

Datasheet

380In Stock

$3.08

$2.31

$2.06

$1.95

View

Min.: 1
Mult.: 1

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: $172.15
5In Stock
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

5In Stock

$172.15

$163.28

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: $73.11
13In Stock
5On Order
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

13In Stock

5On Order

$73.11

$69.22

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: $257.12
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

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Datasheet

5In Stock

$257.12

$246.24

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: $132.55
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

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Datasheet

7In Stock

$132.55

$125.72

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: $139.44
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

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Datasheet

5In Stock

$139.44

$132.25

Min.: 1
Mult.: 1

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

IX-5T
PolyPhaser
1: $255.54
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

$255.54

$244.73

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: $106.22
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

Learn More

Datasheet

4In Stock

$106.22

$88.70

$82.43

Min.: 1
Mult.: 1

NTC Thermistors ESA PROBE-RTD PT1000 3000mm ENG MODEL

10219128-03
TE Connectivity
1: $629.25
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

$629.25

$575.28

$529.92

View

Min.: 1
Mult.: 1

Industrial Surge Protectors VAL-US-SPP-120/50/1+0-R

1790744
Phoenix Contact
1: $94.11
4In Stock
8On Order
New Product

Mfr. Part #
1790744

Mouser Part #
651-1790744

New Product

Phoenix Contact

Industrial Surge Protectors VAL-US-SPP-120/50/1+0-R

Learn More

Datasheet

4In Stock

8On Order

$94.11

$93.73

Min.: 1
Mult.: 1

Industrial Surge Protectors VAL-US-SPP-120/50/3+1-R

1790750
Phoenix Contact
1: $393.50
4In Stock
New Product

Mfr. Part #
1790750

Mouser Part #
651-1790750

New Product

Phoenix Contact

Industrial Surge Protectors VAL-US-SPP-120/50/3+1-R

Learn More

Datasheet

4In Stock

$393.50

$361.53

Min.: 1
Mult.: 1

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

1790772
Phoenix Contact
1: $181.00
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

Learn More

Datasheet

5In Stock

$181.00

Min.: 1
Mult.: 1

NTC Thermistors SMD NTC Thermistor 0805 10kOhm 1% B-3455 HT Series

B57432V5103A262
TDK
1: $0.48
2,713In Stock
New Product

Mfr. Part #
B57432V5103A262

Mouser Part #
871-B57432V5103A262

New Product

TDK

NTC Thermistors SMD NTC Thermistor 0805 10kOhm 1% B-3455 HT Series

Datasheet

2,713In Stock

Cut Tape

$0.48

$0.449

$0.419

$0.398

View

Reel

$0.297

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

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

BF4310
PolyPhaser
1: $53.16
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

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Datasheet

10In Stock

$53.16

$49.92

$48.31

Min.: 1
Mult.: 1

Surge Protection Accessories Kit Flange to Bulkhead DIN Adapter

BFD
PolyPhaser
1: $39.55
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

$39.55

$36.90

$35.36

$35.35

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: $179.82
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

$179.82

$172.21

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: $186.13
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

$186.13

$178.25

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: $191.09
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

$191.09

$181.25

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: $190.86
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

$190.86

$182.79

Min.: 1
Mult.: 1

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