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Circuit Protection

Circuit Protection devices and components are available at Mouser from industry leading manufacturers. Mouser is an authorized distributor for many circuit protection manufacturers including Bourns, Eaton, TDK, Littelfuse, Semtech, 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: 360,107

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Part #

Connectorized Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, 1.5MHz - 700MHz, DC Block, 500W, 75uJ, 50kA, Blocking Cap, Hole Mount

IS-NEMP-C0
PolyPhaser
1: $198.75
16In Stock
New Product

Mfr. Part #
IS-NEMP-C0

Mouser Part #
44-IS-NEMP-C0

New Product

PolyPhaser

Connectorized Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, 1.5MHz - 700MHz, DC Block, 500W, 75uJ, 50kA, Blocking Cap, Hole Mount

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Datasheet

16In Stock

$198.75

$190.34

Min.: 1
Mult.: 1

Connectorized Surge Protectors Outdoor Twisted Pair Lightning Surge Protector, 5 Pair T1/E1, RS-232/422/485, UL 497B

IX-5L
PolyPhaser
1: $58.84
128In Stock
1On Order
New Product

Mfr. Part #
IX-5L

Mouser Part #
44-IX-5L

New Product

PolyPhaser

Connectorized Surge Protectors Outdoor Twisted Pair Lightning Surge Protector, 5 Pair T1/E1, RS-232/422/485, UL 497B

Datasheet

128In Stock

1On Order

$58.84

$55.71

Min.: 1
Mult.: 1

Connectorized Surge Protectors 7/16 DIN M/F Quarter Wave RF Protector, 555MHz to 4.5GHz, Low PIM

QWP-DMDF-ER
PolyPhaser
1: $199.46
21In Stock
New Product

Mfr. Part #
QWP-DMDF-ER

Mouser Part #
44-QWP-DMDF-ER

New Product

PolyPhaser

Connectorized Surge Protectors 7/16 DIN M/F Quarter Wave RF Protector, 555MHz to 4.5GHz, Low PIM

Datasheet

21In Stock

$199.46

$191.03

Min.: 1
Mult.: 1

Connectorized Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, 698MHz - 2.7GHz, DC Block, 500W, IP67, .005uJ, 40kA, Filter, Low PIM

TSX-NFF-P
PolyPhaser
1: $165.26
35In Stock
New Product

Mfr. Part #
TSX-NFF-P

Mouser Part #
44-TSX-NFF-P

New Product

PolyPhaser

Connectorized Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, 698MHz - 2.7GHz, DC Block, 500W, IP67, .005uJ, 40kA, Filter, Low PIM

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Datasheet

35In Stock

$165.26

$156.75

Min.: 1
Mult.: 1

NTC Thermistors ESAPP-ESA PROBE-RTD PT1000, 2000mm

20016752-02
TE Connectivity
1: $1,444.55
4In Stock
10Expected 9/16/2026
New Product

Mfr. Part #
20016752-02

Mouser Part #
571-20016752-02

New Product

TE Connectivity

NTC Thermistors ESAPP-ESA PROBE-RTD PT1000, 2000mm

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Datasheet

4In Stock

10Expected 9/16/2026

$1,444.55

$1,320.64

View

Min.: 1
Mult.: 1

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

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Datasheet

24In Stock

$39.55

$36.90

$35.36

$35.35

Quote

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

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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

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Datasheet

3In Stock

$191.09

$181.25

Min.: 1
Mult.: 1

Connectorized Surge Protectors Type N F/M Coaxial RF Surge Protector, 800MHz - 2.5GHz, 300W, IP67, 15 V Max., 500uJ, 20kA, Hybrid, Bracket Down, Hole Mount

DGXZ+15NFNM-A
PolyPhaser
1: $258.69
1In Stock
New Product

Mfr. Part #
DGXZ+15NFNM-A

Mouser Part #
44-DGXZ+15NFNM-A

New Product

PolyPhaser

Connectorized Surge Protectors Type N F/M Coaxial RF Surge Protector, 800MHz - 2.5GHz, 300W, IP67, 15 V Max., 500uJ, 20kA, Hybrid, Bracket Down, Hole Mount

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Datasheet

1In Stock

$258.69

$247.75

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

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Datasheet

5In Stock

$190.86

$182.79

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: $98.12
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

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Datasheet

5In Stock

$98.12

$93.06

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: $85.20
14In Stock
5Expected 10/9/2026
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

14In Stock

5Expected 10/9/2026

$85.20

$80.81

Min.: 1
Mult.: 1

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

IX-2T
PolyPhaser
1: $182.97
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

$182.97

$175.23

Min.: 1
Mult.: 1

Connectorized Surge Protectors 7/16 F/F Bulkhead Coaxial RF Surge Protector, 698MHz - 2.7GHz, DC Block, 500W, IP67, .005uJ, 40kA, Filter, Low PIM

TSX-DFF
PolyPhaser
1: $189.37
4In Stock
New Product

Mfr. Part #
TSX-DFF

Mouser Part #
44-TSX-DFF

New Product

PolyPhaser

Connectorized Surge Protectors 7/16 F/F Bulkhead Coaxial RF Surge Protector, 698MHz - 2.7GHz, DC Block, 500W, IP67, .005uJ, 40kA, Filter, Low PIM

Learn More

Datasheet

4In Stock

$189.37

$179.61

Min.: 1
Mult.: 1

Connectorized Surge Protectors 7/16 F/M Bulkhead Coaxial RF Surge Protector, 698MHz - 2.7GHz, DC Block, 500W, IP67, .005uJ, 40kA, Filter, Low PIM, w/ Bracket

TSX-DFM-BF
PolyPhaser
1: $195.59
6In Stock
New Product

Mfr. Part #
TSX-DFM-BF

Mouser Part #
44-TSX-DFM-BF

New Product

PolyPhaser

Connectorized Surge Protectors 7/16 F/M Bulkhead Coaxial RF Surge Protector, 698MHz - 2.7GHz, DC Block, 500W, IP67, .005uJ, 40kA, Filter, Low PIM, w/ Bracket

Learn More

Datasheet

6In Stock

$195.59

$187.32

Min.: 1
Mult.: 1

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

TSXDC-4310FF
PolyPhaser
1: $190.86
4In Stock
New Product

Mfr. Part #
TSXDC-4310FF

Mouser Part #
44-TSXDC-4310FF

New Product

PolyPhaser

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

Learn More

Datasheet

4In Stock

$190.86

$182.79

Min.: 1
Mult.: 1

NTC Thermistors ESAPP-ESA PROBE-RTD PT1000, 500mm

20016752-00
TE Connectivity
1: $922.51
1In Stock
New Product

Mfr. Part #
20016752-00

Mouser Part #
571-20016752-00

New Product

TE Connectivity

NTC Thermistors ESAPP-ESA PROBE-RTD PT1000, 500mm

Learn More

Datasheet

1In Stock

$922.51

$740.23

$740.22

View

Min.: 1
Mult.: 1

Surge Protection Accessories L-Shaped Adapter

BF-ADAPTER
PolyPhaser
1: $29.80
20In Stock
New Product

Mfr. Part #
BF-ADAPTER

Mouser Part #
44-BF-ADAPTER

New Product

PolyPhaser

Surge Protection Accessories L-Shaped Adapter

Learn More

Datasheet

20In Stock

$29.80

$25.30

$24.16

$21.61

$21.60

Min.: 1
Mult.: 1

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

DGXZ+06NMNF-Z
PolyPhaser
1: $194.54
4In Stock
New Product

Mfr. Part #
DGXZ+06NMNF-Z

Mouser Part #
44-DGXZ+06NMNF-Z

New Product

PolyPhaser

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

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Datasheet

4In Stock

$194.54

$184.52

Min.: 1
Mult.: 1

Connectorized Surge Protectors 75 Ohm Type F F/F Coaxial RF Surge Protector, 4MHz - 900MHz, DC Block, 100W, 50kA, Blocking Cap, Bracket Up, Hole Mount

IS-75F-C1
PolyPhaser
1: $110.18
5In Stock
2Expected 9/18/2026
New Product

Mfr. Part #
IS-75F-C1

Mouser Part #
44-IS-75F-C1

New Product

PolyPhaser

Connectorized Surge Protectors 75 Ohm Type F F/F Coaxial RF Surge Protector, 4MHz - 900MHz, DC Block, 100W, 50kA, Blocking Cap, Bracket Up, Hole Mount

Learn More

Datasheet

5In Stock

2Expected 9/18/2026

$110.18

$104.50

Min.: 1
Mult.: 1

Surge Protection Accessories IX Series Pole Mount Kit

IX-POLE-KIT
PolyPhaser
1: $67.76
10In Stock
New Product

Mfr. Part #
IX-POLE-KIT

Mouser Part #
44-IX-POLE-KIT

New Product

PolyPhaser

Surge Protection Accessories IX Series Pole Mount Kit

Datasheet

10In Stock

$67.76

$64.15

Min.: 1
Mult.: 1

Surge Protection Accessories Transition Clamp with Shims to Connect Copper to Galvanized Tower Legs for 1 1/4 to 2 1/4 inch

TK-2
PolyPhaser
1: $48.89
10In Stock
New Product

Mfr. Part #
TK-2

Mouser Part #
44-TK-2

New Product

PolyPhaser

Surge Protection Accessories Transition Clamp with Shims to Connect Copper to Galvanized Tower Legs for 1 1/4 to 2 1/4 inch

Learn More

Datasheet

10In Stock

$48.89

$45.62

$43.70

Min.: 1
Mult.: 1

Connectorized Surge Protectors 7/16 F/M Bulkhead Coaxial RF Surge Protector, 698MHz - 2.7GHz, DC Block, 500W, IP67, .005uJ, 40kA, Filter, Low PIM

TSX-DFM
PolyPhaser
1: $230.30
5In Stock
New Product

Mfr. Part #
TSX-DFM

Mouser Part #
44-TSX-DFM

New Product

PolyPhaser

Connectorized Surge Protectors 7/16 F/M Bulkhead Coaxial RF Surge Protector, 698MHz - 2.7GHz, DC Block, 500W, IP67, .005uJ, 40kA, Filter, Low PIM

Learn More

Datasheet

5In Stock

$230.30

$220.56

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

TSX-NFM
PolyPhaser
1: $139.44
9In Stock
New Product

Mfr. Part #
TSX-NFM

Mouser Part #
44-TSX-NFM

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

Learn More

Datasheet

9In Stock

$139.44

$132.25

Min.: 1
Mult.: 1

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