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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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Part #

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

GSA-KIT-D
PolyPhaser
1: HK$665.00
5In Stock
New Product

Mfr. Part No.
GSA-KIT-D

Mouser Part No
44-GSA-KIT-D

New Product

PolyPhaser

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

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Datasheet

5In Stock

HK$665.00

HK$630.72

Min.: 1
Mult.: 1

Connectorised 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: HK$700.34
10In Stock
New Product

Mfr. Part No.
IS-50NX-C2-ME

Mouser Part No
44-IS-50NX-C2-ME

New Product

PolyPhaser

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

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Datasheet

10In Stock

HK$700.34

HK$664.26

Min.: 1
Mult.: 1

Connectorised 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: HK$919.74
4In Stock
New Product

Mfr. Part No.
IS-50UX-C1-ME

Mouser Part No
44-IS-50UX-C1-ME

New Product

PolyPhaser

Connectorised 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

HK$919.74

HK$872.39

Min.: 1
Mult.: 1

Connectorised 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: HK$749.91
7In Stock
New Product

Mfr. Part No.
IS-B50LN-C2-ME

Mouser Part No
44-IS-B50LN-C2-ME

New Product

PolyPhaser

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

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Datasheet

7In Stock

HK$749.91

HK$711.28

Min.: 1
Mult.: 1

Connectorised 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: HK$1,542.48
5In Stock
New Product

Mfr. Part No.
IS-NEMP-C2

Mouser Part No
44-IS-NEMP-C2

New Product

PolyPhaser

Connectorised Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, 125MHz - 1GHz, DC Block, 200W, 250uJ, 50kA, Blocking Cap, Hole Mount

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Datasheet

5In Stock

HK$1,542.48

HK$1,463.00

Min.: 1
Mult.: 1

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

IX-2M
PolyPhaser
1: HK$1,301.88
3In Stock
New Product

Mfr. Part No.
IX-2M

Mouser Part No
44-IX-2M

New Product

PolyPhaser

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

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Datasheet

3In Stock

HK$1,301.88

HK$1,234.81

Min.: 1
Mult.: 1

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

LSXL
PolyPhaser
1: HK$1,117.84
7In Stock
New Product

Mfr. Part No.
LSXL

Mouser Part No
44-LSXL

New Product

PolyPhaser

Connectorised 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

HK$1,117.84

HK$1,060.30

Min.: 1
Mult.: 1

Connectorised 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: HK$1,075.42
10In Stock
New Product

Mfr. Part No.
RGT

Mouser Part No
44-RGT

New Product

PolyPhaser

Connectorised 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

HK$1,075.42

HK$1,020.02

Min.: 1
Mult.: 1

Connectorised 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: HK$3,060.06
1In Stock
New Product

Mfr. Part No.
RRF-160-NFF

Mouser Part No
44-RRF-160-NFF

New Product

PolyPhaser

Connectorised 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

HK$3,060.06

HK$2,930.68

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: HK$757.39
8In Stock
New Product

Mfr. Part No.
REX22D-TD1-100-DC24V-10A/16A/20A-E

Mouser Part No
457-REX22DTD1101620E

New Product

E-T-A

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

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Datasheet

8In Stock

HK$757.39

HK$625.79

HK$616.75

HK$581.65

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors ESAPP-ESA PROBE-RTD PT1000, 1000mm

20016752-01
TE Connectivity
1: HK$7,817.80
1In Stock
New Product

Mfr. Part No.
20016752-01

Mouser Part No
571-20016752-01

New Product

TE Connectivity

NTC (Negative Temperature Coefficient) Thermistors ESAPP-ESA PROBE-RTD PT1000, 1000mm

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Datasheet

1In Stock

HK$7,817.80

HK$7,147.21

HK$6,583.64

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors NTC LUG M5 10k 1% G24 64mm A

NTCALUG54A103F640A
Vishay / BC Components
1: HK$25.32
380In Stock
New Product

Mfr. Part No.
NTCALUG54A103F640A

Mouser Part No
594-NTCALUG54A103F6

New Product

Vishay / BC Components

NTC (Negative Temperature Coefficient) Thermistors NTC LUG M5 10k 1% G24 64mm A

Datasheet

380In Stock

HK$25.32

HK$18.99

HK$16.93

HK$16.03

View

Min.: 1
Mult.: 1

Connectorised Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, 2.0GHz - 6.0GHz, DC Block 10W, 10kA, Blocking Capacitor

111-1010
PolyPhaser
1: HK$962.23
10In Stock
New Product

Mfr. Part No.
111-1010

Mouser Part No
44-111-1010

New Product

PolyPhaser

Connectorised Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, 2.0GHz - 6.0GHz, DC Block 10W, 10kA, Blocking Capacitor

Datasheet

10In Stock

HK$962.23

HK$912.67

Min.: 1
Mult.: 1

Surge Protection Accessories Hardware Kit, 108-1118B

9100-0453-A
PolyPhaser
1: HK$231.48
28In Stock
New Product

Mfr. Part No.
9100-0453-A

Mouser Part No
44-9100-0453-A

New Product

PolyPhaser

Surge Protection Accessories Hardware Kit, 108-1118B

Datasheet

28In Stock

HK$231.48

HK$196.46

HK$187.66

HK$167.77

Min.: 1
Mult.: 1

Connectorised Surge Protectors Type N F/F Coaxial RF Surge Protector, 400MHz - 1.2GHz, 300W, IP67, 36 V Max., 1.5mJ, 20kA, Hybrid, Bracket Down, Hole Mount

CGXZ+36NFNF-A
PolyPhaser
1: HK$1,400.93
8In Stock
36On Order
New Product

Mfr. Part No.
CGXZ+36NFNF-A

Mouser Part No
44-CGXZ+36NFNF-A

New Product

PolyPhaser

Connectorised Surge Protectors Type N F/F Coaxial RF Surge Protector, 400MHz - 1.2GHz, 300W, IP67, 36 V Max., 1.5mJ, 20kA, Hybrid, Bracket Down, Hole Mount

Learn More

Datasheet

8In Stock

36On Order

HK$1,400.93

HK$1,328.76

Min.: 1
Mult.: 1

Connectorised Surge Protectors Type N M/F Coaxial RF Surge Protector, 400MHz - 1.2GHz, 300W, IP67, 36 V Max., 1mJ, 20kA, Hybrid, Bracket Down, Hole Mount

CGXZ+36NMNF-A
PolyPhaser
1: HK$1,542.48
7In Stock
New Product

Mfr. Part No.
CGXZ+36NMNF-A

Mouser Part No
44-CGXZ+36NMNF-A

New Product

PolyPhaser

Connectorised Surge Protectors Type N M/F Coaxial RF Surge Protector, 400MHz - 1.2GHz, 300W, IP67, 36 V Max., 1mJ, 20kA, Hybrid, Bracket Down, Hole Mount

Learn More

Datasheet

7In Stock

HK$1,542.48

HK$1,463.08

Min.: 1
Mult.: 1

Connectorised Surge Protectors 7/16 M/F Coaxial RF Surge Protector, 800MHz - 2.5GHz, 500W, IP67, 48 V Max., 146uJ, 20kA, Hybrid, Bracket Down, Hole Mount

DGXH+48DMDF-A
PolyPhaser
1: HK$1,672.61
5In Stock
New Product

Mfr. Part No.
DGXH+48DMDF-A

Mouser Part No
44-DGXH+48DMDF-A

New Product

PolyPhaser

Connectorised Surge Protectors 7/16 M/F Coaxial RF Surge Protector, 800MHz - 2.5GHz, 500W, IP67, 48 V Max., 146uJ, 20kA, Hybrid, Bracket Down, Hole Mount

Learn More

Datasheet

5In Stock

HK$1,672.61

HK$1,601.83

Min.: 1
Mult.: 1

Connectorised Surge Protectors Type N M/F Bulkhead Coaxial RF Surge Protector, 550MHz - 2700MHz, DC Pass, 6V, IP67, 20kA, Hybrid, Bracket Up, Hole Mount

DGXR+06NMNF-Z
PolyPhaser
1: HK$1,316.02
5In Stock
New Product

Mfr. Part No.
DGXR+06NMNF-Z

Mouser Part No
44-DGXR+06NMNF-Z

New Product

PolyPhaser

Connectorised Surge Protectors Type N M/F Bulkhead Coaxial RF Surge Protector, 550MHz - 2700MHz, DC Pass, 6V, IP67, 20kA, Hybrid, Bracket Up, Hole Mount

Datasheet

5In Stock

HK$1,316.02

HK$1,248.21

Min.: 1
Mult.: 1

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

DGXZ+06NFNF-B
PolyPhaser
1: HK$1,542.48
8In Stock
2Expected 11/9/2026
New Product

Mfr. Part No.
DGXZ+06NFNF-B

Mouser Part No
44-DGXZ+06NFNF-B

New Product

PolyPhaser

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

Learn More

Datasheet

8In Stock

2Expected 11/9/2026

HK$1,542.48

HK$1,463.00

Min.: 1
Mult.: 1

Connectorised Surge Protectors TNC M/F Bulkhead Coaxial RF Surge Protector, 700MHz - 2.5GHz, DC Block, 500W, IP67, .5uJ, 18kA, Filter

DSXL-T-MA
PolyPhaser
1: HK$2,463.62
2In Stock
New Product

Mfr. Part No.
DSXL-T-MA

Mouser Part No
44-DSXL-T-MA

New Product

PolyPhaser

Connectorised Surge Protectors TNC M/F Bulkhead Coaxial RF Surge Protector, 700MHz - 2.5GHz, DC Block, 500W, IP67, .5uJ, 18kA, Filter

Datasheet

2In Stock

HK$2,463.62

HK$2,359.39

Min.: 1
Mult.: 1

Connectorised Surge Protectors Type N/SMA F/F Bulkhead Coaxial RF Surge Protector, DC - 7GHz, 90W, IP67, 9 V Max., 5mJ, 20kA, Gas Discharge Tube

GT-NFSF-AL
PolyPhaser
1: HK$1,061.28
7In Stock
New Product

Mfr. Part No.
GT-NFSF-AL

Mouser Part No
44-GT-NFSF-AL

New Product

PolyPhaser

Connectorised Surge Protectors Type N/SMA F/F Bulkhead Coaxial RF Surge Protector, DC - 7GHz, 90W, IP67, 9 V Max., 5mJ, 20kA, Gas Discharge Tube

Learn More

Datasheet

7In Stock

HK$1,061.28

HK$1,006.62

Min.: 1
Mult.: 1

Connectorised Surge Protectors UHF F/F Bulkhead Coaxial RF Surge Protector, 1.5MHz - 700MHz, DC Block, 3kW, 20mJ, 50kA, Blocking Cap, Hole Mount

IS-B50HU-C0
PolyPhaser
1: HK$1,146.20
8In Stock
2Expected 11/9/2026
New Product

Mfr. Part No.
IS-B50HU-C0

Mouser Part No
44-IS-B50HU-C0

New Product

PolyPhaser

Connectorised Surge Protectors UHF F/F Bulkhead Coaxial RF Surge Protector, 1.5MHz - 700MHz, DC Block, 3kW, 20mJ, 50kA, Blocking Cap, Hole Mount

Learn More

Datasheet

8In Stock

2Expected 11/9/2026

HK$1,146.20

HK$1,087.18

Min.: 1
Mult.: 1

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

IS-B50LN-C2-MA
PolyPhaser
1: HK$933.87
5In Stock
New Product

Mfr. Part No.
IS-B50LN-C2-MA

Mouser Part No
44-IS-B50LN-C2-MA

New Product

PolyPhaser

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

Learn More

Datasheet

5In Stock

HK$933.87

HK$885.79

Min.: 1
Mult.: 1

Circuit Breaker Accessories 508, DM, 20A, Distribution Module, Load, ATEX

PM12-T01-00-LOAD-20A-E
E-T-A
1: HK$320.00
7In Stock
New Product

Mfr. Part No.
PM12-T01-00-LOAD-20A-E

Mouser Part No
457-PM12T100LOAD2AE

New Product

E-T-A

Circuit Breaker Accessories 508, DM, 20A, Distribution Module, Load, ATEX

Datasheet

7In Stock

HK$320.00

HK$246.85

HK$243.15

HK$229.42

Min.: 1
Mult.: 1

Circuit Breakers 508,DM,24VDC,CL,20A,ATX

REX22D-TA1-100-DC24V-20A-E
E-T-A
1: HK$719.74
11In Stock
New Product

Mfr. Part No.
REX22D-TA1-100-DC24V-20A-E

Mouser Part No
457-REX22DTA120E

New Product

E-T-A

Circuit Breakers 508,DM,24VDC,CL,20A,ATX

Learn More

Datasheet

11In Stock

HK$719.74

HK$592.42

HK$583.70

HK$550.58

Min.: 1
Mult.: 1

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