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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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Part #

Connectorised Surge Protectors Type N F/F Coaxial RF Surge Protector, 1.5MHz - 700MHz, DC Block, 2kW, 3.5mJ, 50kA, Blocking Cap, Bracket Up, Hole Mount

IS-50NX-C0
PolyPhaser
1: $80.91
32In Stock
10Expected 2026/09/04
New Product

Mfr. Part No.
IS-50NX-C0

Mouser Part No
44-IS-50NX-C0

New Product

PolyPhaser

Connectorised Surge Protectors Type N F/F Coaxial RF Surge Protector, 1.5MHz - 700MHz, DC Block, 2kW, 3.5mJ, 50kA, Blocking Cap, Bracket Up, Hole Mount

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Datasheet

32In Stock

10Expected 2026/09/04

$80.91

$76.75

Min.: 1
Mult.: 1

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

TSX-NFF
PolyPhaser
1: $170.46
65In Stock
New Product

Mfr. Part No.
TSX-NFF

Mouser Part No
44-TSX-NFF

New Product

PolyPhaser

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

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Datasheet

65In Stock

$170.46

$161.68

Min.: 1
Mult.: 1

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

TSX-NFM-P
PolyPhaser
1: $146.35
55In Stock
New Product

Mfr. Part No.
TSX-NFM-P

Mouser Part No
44-TSX-NFM-P

New Product

PolyPhaser

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

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Datasheet

55In Stock

$146.35

$138.82

Min.: 1
Mult.: 1

Connectorised Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, 300MHz - 1.2GHz, DC Block, 2.5kW, IP67, .0075uJ, 40kA, Filter

TUSX-NFF
PolyPhaser
1: $189.31
43In Stock
New Product

Mfr. Part No.
TUSX-NFF

Mouser Part No
44-TUSX-NFF

New Product

PolyPhaser

Connectorised Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, 300MHz - 1.2GHz, DC Block, 2.5kW, IP67, .0075uJ, 40kA, Filter

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Datasheet

43In Stock

$189.31

$181.31

Min.: 1
Mult.: 1

Surge Protection Accessories 100 Foot Long 3 inch Wide Copper Strap

CS3-100
PolyPhaser
1: $1,232.63
3In Stock
New Product

Mfr. Part No.
CS3-100

Mouser Part No
44-CS3-100

New Product

PolyPhaser

Surge Protection Accessories 100 Foot Long 3 inch Wide Copper Strap

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Datasheet

3In Stock

$1,232.63

Min.: 1
Mult.: 1

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

IS-50NX-C2
PolyPhaser
1: $98.13
72In Stock
22Expected 2026/08/31
New Product

Mfr. Part No.
IS-50NX-C2

Mouser Part No
44-IS-50NX-C2

New Product

PolyPhaser

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

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Datasheet

72In Stock

22Expected 2026/08/31

$98.13

$93.07

Min.: 1
Mult.: 1

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

IS-50UX-C0
PolyPhaser
1: $84.35
67In Stock
30On Order
New Product

Mfr. Part No.
IS-50UX-C0

Mouser Part No
44-IS-50UX-C0

New Product

PolyPhaser

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

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Datasheet

67In Stock

30On Order

$84.35

$80.01

Min.: 1
Mult.: 1

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

IS-B50LN-C0
PolyPhaser
1: $98.13
68In Stock
16Expected 2026/09/04
New Product

Mfr. Part No.
IS-B50LN-C0

Mouser Part No
44-IS-B50LN-C0

New Product

PolyPhaser

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

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Datasheet

68In Stock

16Expected 2026/09/04

$98.13

$93.07

Min.: 1
Mult.: 1

Connectorised Surge Protectors 4.3-10 F/F Bulkhead Coaxial RF Surge Protector, 698MHz - 2.7GHz, DC Block, 500W, IP67, .005uJ, 40kA, Filter, Low PIM

TSX-4310FF-P
PolyPhaser
1: $197.21
9In Stock
New Product

Mfr. Part No.
TSX-4310FF-P

Mouser Part No
44-TSX-4310FF-P

New Product

PolyPhaser

Connectorised Surge Protectors 4.3-10 F/F Bulkhead Coaxial RF Surge Protector, 698MHz - 2.7GHz, DC Block, 500W, IP67, .005uJ, 40kA, Filter, Low PIM

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Datasheet

9In Stock

$197.21

$188.86

Min.: 1
Mult.: 1

Connectorised Surge Protectors 7/16 F/F Bulkhead Coaxial RF Surge Protector, 100MHz - 512MHz, DC Block, 750W, IP67, .5uJ, 20kA, Filter, Low PIM -150 dBc, Hole Mount

VHF50D-PGR
PolyPhaser
1: $214.57
8In Stock
9On Order
New Product

Mfr. Part No.
VHF50D-PGR

Mouser Part No
44-VHF50D-PGR

New Product

PolyPhaser

Connectorised Surge Protectors 7/16 F/F Bulkhead Coaxial RF Surge Protector, 100MHz - 512MHz, DC Block, 750W, IP67, .5uJ, 20kA, Filter, Low PIM -150 dBc, Hole Mount

Datasheet

8In Stock

9On Order

$214.57

$205.49

Min.: 1
Mult.: 1

Industrial Surge Protectors SHOCK BLOCK CLASS A GFCI 208-240V 30A

SB4030-521-00
Littelfuse
1: $526.06
4In Stock
New Product

Mfr. Part No.
SB4030-521-00

Mouser Part No
576-SB4030-521-00

New Product

Littelfuse

Industrial Surge Protectors SHOCK BLOCK CLASS A GFCI 208-240V 30A

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Datasheet

4In Stock

$526.06

Min.: 1
Mult.: 1

Industrial Surge Protectors VAL-US-SPP-240/50/3+1-R

1790767
Phoenix Contact
1: $358.09
7In Stock
New Product

Mfr. Part No.
1790767

Mouser Part No
651-1790767

New Product

Phoenix Contact

Industrial Surge Protectors VAL-US-SPP-240/50/3+1-R

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Datasheet

7In Stock

$358.09

$351.06

Min.: 1
Mult.: 1

Connectorised Surge Protectors Type N F/F Coaxial RF Surge Protector, 800MHz - 2.5GHz, 300W, IP67, 36 V Max., 1.5mJ, 20kA, Hybrid, Bracket Down, Hole Mount

DGXZ+36NFNF-A
PolyPhaser
1: $212.98
37In Stock
25Expected 2026/09/11
New Product

Mfr. Part No.
DGXZ+36NFNF-A

Mouser Part No
44-DGXZ+36NFNF-A

New Product

PolyPhaser

Connectorised Surge Protectors Type N F/F Coaxial RF Surge Protector, 800MHz - 2.5GHz, 300W, IP67, 36 V Max., 1.5mJ, 20kA, Hybrid, Bracket Down, Hole Mount

Learn More

Datasheet

37In Stock

25Expected 2026/09/11

$212.98

$203.98

Min.: 1
Mult.: 1

Connectorised Surge Protectors Type N F/M Bulkhead Coaxial RF Surge Protector, 1.2GHz - 1.6GHz, 10W, IP67, 6 V Max., 175uJ, 15kA, Avalanche Diode

GPS+06NFM
PolyPhaser
1: $132.57
28In Stock
New Product

Mfr. Part No.
GPS+06NFM

Mouser Part No
44-GPS+06NFM

New Product

PolyPhaser

Connectorised Surge Protectors Type N F/M Bulkhead Coaxial RF Surge Protector, 1.2GHz - 1.6GHz, 10W, IP67, 6 V Max., 175uJ, 15kA, Avalanche Diode

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Datasheet

28In Stock

$132.57

$125.74

Min.: 1
Mult.: 1

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

GSA-KIT-N
PolyPhaser
1: $61.53
51In Stock
8Expected 2026/09/11
New Product

Mfr. Part No.
GSA-KIT-N

Mouser Part No
44-GSA-KIT-N

New Product

PolyPhaser

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

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Datasheet

51In Stock

8Expected 2026/09/11

$61.53

$58.25

Min.: 1
Mult.: 1

Connectorised Surge Protectors Type N F/M Bulkhead Coaxial RF Surge Protector, DC - 6GHz, 1000W, IP67, 60 V Max., 2.5mJ, 20kA, Gas Discharge Tube

GTH-NFM-AL
PolyPhaser
1: $82.63
43In Stock
29On Order
New Product

Mfr. Part No.
GTH-NFM-AL

Mouser Part No
44-GTH-NFM-AL

New Product

PolyPhaser

Connectorised Surge Protectors Type N F/M Bulkhead Coaxial RF Surge Protector, DC - 6GHz, 1000W, IP67, 60 V Max., 2.5mJ, 20kA, Gas Discharge Tube

Learn More

Datasheet

43In Stock

29On Order

$82.63

$78.37

Min.: 1
Mult.: 1

Connectorised Surge Protectors RF Surge Protector SPD, SMA F/F, DC - 6GHz, 150W, 60 V Max., 10kA, Gas Discharge Tube

GTH-SFF-AL
PolyPhaser
1: $74.01
62In Stock
New Product

Mfr. Part No.
GTH-SFF-AL

Mouser Part No
44-GTH-SFF-AL

New Product

PolyPhaser

Connectorised Surge Protectors RF Surge Protector SPD, SMA F/F, DC - 6GHz, 150W, 60 V Max., 10kA, Gas Discharge Tube

Datasheet

62In Stock

$74.01

$70.07

Min.: 1
Mult.: 1

Connectorised Surge Protectors RF Surge Protector SPD, SMA F/M, DC - 6GHz, 150W, 60 V Max., 10kA, Gas Discharge Tube

GTH-SFM-AL
PolyPhaser
1: $80.26
61In Stock
New Product

Mfr. Part No.
GTH-SFM-AL

Mouser Part No
44-GTH-SFM-AL

New Product

PolyPhaser

Connectorised Surge Protectors RF Surge Protector SPD, SMA F/M, DC - 6GHz, 150W, 60 V Max., 10kA, Gas Discharge Tube

Datasheet

61In Stock

$80.26

$75.98

Min.: 1
Mult.: 1

Connectorised Surge Protectors 7/16 F/F Bulkhead Coaxial RF Surge Protector, 300MHz - 1.2GHz, DC Block, 2.5kW, IP67, .005uJ, 40kA, Filter, Low PIM

TUSX-DFF
PolyPhaser
1: $179.07
11In Stock
New Product

Mfr. Part No.
TUSX-DFF

Mouser Part No
44-TUSX-DFF

New Product

PolyPhaser

Connectorised Surge Protectors 7/16 F/F Bulkhead Coaxial RF Surge Protector, 300MHz - 1.2GHz, DC Block, 2.5kW, IP67, .005uJ, 40kA, Filter, Low PIM

Learn More

Datasheet

11In Stock

$179.07

$169.84

Min.: 1
Mult.: 1

Connectorised Surge Protectors 7/16 F/F Coaxial RF Surge Protector, 100MHz - 512MHz, DC Block, 750W, IP67, .5uJ, 20kA, Filter, Low PIM -155 dBc, Bracket Down, Hole Mount

VHF50ED-PGR
PolyPhaser
1: $216.14
7In Stock
New Product

Mfr. Part No.
VHF50ED-PGR

Mouser Part No
44-VHF50ED-PGR

New Product

PolyPhaser

Connectorised Surge Protectors 7/16 F/F Coaxial RF Surge Protector, 100MHz - 512MHz, DC Block, 750W, IP67, .5uJ, 20kA, Filter, Low PIM -155 dBc, Bracket Down, Hole Mount

Learn More

Datasheet

7In Stock

$216.14

$207.00

Min.: 1
Mult.: 1

Connectorised Surge Protectors 7/16 F/F Coaxial RF Surge Protector, 100MHz - 512MHz, DC Block, 750W, IP67, .5uJ, 20kA, Filter, Bracket Down, Hole Mount

VHF50HD
PolyPhaser
1: $194.05
9In Stock
New Product

Mfr. Part No.
VHF50HD

Mouser Part No
44-VHF50HD

New Product

PolyPhaser

Connectorised Surge Protectors 7/16 F/F Coaxial RF Surge Protector, 100MHz - 512MHz, DC Block, 750W, IP67, .5uJ, 20kA, Filter, Bracket Down, Hole Mount

Learn More

Datasheet

9In Stock

$194.05

$185.85

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors ESAPP-ESA PLATINUM NON-FLIGHT

10219128-00
TE Connectivity
1: $445.68
6In Stock
New Product

Mfr. Part No.
10219128-00

Mouser Part No
571-10219128-00

New Product

TE Connectivity

NTC (Negative Temperature Coefficient) Thermistors ESAPP-ESA PLATINUM NON-FLIGHT

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Datasheet

6In Stock

$445.68

$407.46

$351.85

View

Min.: 1
Mult.: 1

Connectorised Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, 10MHz - 1GHz, DC Block, 100W, 120uJ, 20kA, Blocking Cap, Hole Mount

098-1013G-A
PolyPhaser
1: $113.63
25In Stock
New Product

Mfr. Part No.
098-1013G-A

Mouser Part No
44-098-1013G-A

New Product

PolyPhaser

Connectorised Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, 10MHz - 1GHz, DC Block, 100W, 120uJ, 20kA, Blocking Cap, Hole Mount

Datasheet

25In Stock

$113.63

$107.78

Min.: 1
Mult.: 1

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

DGXZ+15TFTF-A
PolyPhaser
1: $205.10
50In Stock
16Expected 2026/09/04
New Product

Mfr. Part No.
DGXZ+15TFTF-A

Mouser Part No
44-DGXZ+15TFTF-A

New Product

PolyPhaser

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

Learn More

Datasheet

50In Stock

16Expected 2026/09/04

$205.10

$196.42

Min.: 1
Mult.: 1

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

GT-TFF-AL
PolyPhaser
1: $76.69
57In Stock
51On Order
New Product

Mfr. Part No.
GT-TFF-AL

Mouser Part No
44-GT-TFF-AL

New Product

PolyPhaser

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

Learn More

Datasheet

57In Stock

51On Order

$76.69

$72.61

Min.: 1
Mult.: 1

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