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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: 359,642

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Part #

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

GPS+06NFF
PolyPhaser
1: ₩217,526.4
11In Stock
2On Order
New Product

Mfr. Part #
GPS+06NFF

Mouser Part #
44-GPS+06NFF

New Product

PolyPhaser

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

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Datasheet

11In Stock

2On Order

₩217,526.4

₩206,310

Min.: 1
Mult.: 1

Surge Protection Accessories IX Series Pole Mount Kit

IX-POLE-KIT
PolyPhaser
1: ₩105,705.6
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

₩105,705.6

₩100,074

Min.: 1
Mult.: 1

Connectorized Surge Protectors Outdoor Twisted Pair Lightning Surge Protector, 4 Pair Gigabit Ethernet, PoE, UL 497B

IXG-05
PolyPhaser
1: ₩297,741.6
5In Stock
13Expected 9/22/2026
New Product

Mfr. Part #
IXG-05

Mouser Part #
44-IXG-05

New Product

PolyPhaser

Connectorized Surge Protectors Outdoor Twisted Pair Lightning Surge Protector, 4 Pair Gigabit Ethernet, PoE, UL 497B

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Datasheet

5In Stock

13Expected 9/22/2026

₩297,741.6

₩285,152.4

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: ₩76,268.4
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

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Datasheet

10In Stock

₩76,268.4

₩71,167.2

₩68,172

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: ₩359,268
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

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Datasheet

5In Stock

₩359,268

₩344,073.6

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: ₩217,526.4
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

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Datasheet

9In Stock

₩217,526.4

₩206,310

Min.: 1
Mult.: 1

Connectorized Surge Protectors Type N M/F Coaxial RF Surge Protector, 0.5MHz - 1GHz, DC Block, 750W, IP67, 15mJ, 20kA, Filter, Bracket Down, Hole Mount

VUF50NHP-MA
PolyPhaser
1: ₩452,774.4
3In Stock
New Product

Mfr. Part #
VUF50NHP-MA

Mouser Part #
44-VUF50NHP-MA

New Product

PolyPhaser

Connectorized Surge Protectors Type N M/F Coaxial RF Surge Protector, 0.5MHz - 1GHz, DC Block, 750W, IP67, 15mJ, 20kA, Filter, Bracket Down, Hole Mount

Datasheet

3In Stock

₩452,774.4

₩433,555.2

Min.: 1
Mult.: 1

Circuit Breaker Accessories 508, DM, 40A Supply Module, IOLink, ATEX

EM12D-TIO-000-DC24V-40A-E
E-T-A
1: ₩208,291.2
6In Stock
New Product

Mfr. Part #
EM12D-TIO-000-DC24V-40A-E

Mouser Part #
457-EM12DTIO24V4AE

New Product

E-T-A

Circuit Breaker Accessories 508, DM, 40A Supply Module, IOLink, ATEX

Datasheet

6In Stock

₩208,291.2

₩176,810.4

₩164,314.8

Min.: 1
Mult.: 1

Circuit Breaker Accessories 508, DM, 40A Supply Module, Modbus, ATEX

EM12D-TMB-000-DC24V-40A-E
E-T-A
1: ₩283,420.8
3In Stock
New Product

Mfr. Part #
EM12D-TMB-000-DC24V-40A-E

Mouser Part #
457-EM12DTMB24V4AE

New Product

E-T-A

Circuit Breaker Accessories 508, DM, 40A Supply Module, Modbus, ATEX

Datasheet

3In Stock

₩283,420.8

₩275,574

₩245,762.4

₩228,384

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes 400W,24V5%,SMFBIDIRTVS

4SMF24CA-M3/I
Vishay Semiconductors
1: ₩780
6,662In Stock
New Product

Mfr. Part #
4SMF24CA-M3/I

Mouser Part #
78-4SMF24CA-M3/I

New Product

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 400W,24V5%,SMFBIDIRTVS

Datasheet

6,662In Stock

Cut Tape

₩780

₩547.6

₩268.3

₩224.6

Reel

₩103

View

Min.: 1
Mult.: 1

: 10,000

ESD Protection Diodes / TVS Diodes 400W,28V5%,SMFBIDIRTVS

4SMF28CA-M3/I
Vishay Semiconductors
1: ₩780
6,832In Stock
New Product

Mfr. Part #
4SMF28CA-M3/I

Mouser Part #
78-4SMF28CA-M3/I

New Product

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 400W,28V5%,SMFBIDIRTVS

Datasheet

6,832In Stock

Cut Tape

₩780

₩547.6

₩268.3

₩224.6

Reel

₩103

View

Min.: 1
Mult.: 1

: 10,000

NTC Thermistors SMD NTC Thermistor 0603 47kOhm 1% B-4131 soft

B57359V6473F260
TDK
1: ₩764.4
2,765In Stock
New Product

Mfr. Part #
B57359V6473F260

Mouser Part #
871-B57359V6473F260

New Product

TDK

NTC Thermistors SMD NTC Thermistor 0603 47kOhm 1% B-4131 soft

Datasheet

2,765In Stock

Cut Tape

₩764.4

₩592.8

₩510.1

₩419.6

Reel

₩321.4

View

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Industrial & Electrical Fuses Specialty Fuses POWR-SPEED SQB ESR 1500VDC 3XL BOLT 315A

ESR3XLUB0315XI
Littelfuse
1: ₩911,757.6
2In Stock
1Expected 12/29/2026
New Product

Mfr. Part #
ESR3XLUB0315XI

Mouser Part #
576-ESR3XLUB0315XI

New Product

Littelfuse

Industrial & Electrical Fuses Specialty Fuses POWR-SPEED SQB ESR 1500VDC 3XL BOLT 315A

Learn More

Datasheet

2In Stock

1Expected 12/29/2026

₩911,757.6

₩748,659.6

₩681,470.4

Quote

Min.: 1
Mult.: 1

Triacs 0.8A 600V Sens SOT-89

LX809MBRP
Littelfuse
1: ₩2,121.6
700In Stock
200On Order
New Product

Mfr. Part #
LX809MBRP

Mouser Part #
576-LX809MBRP

New Product

Littelfuse

Triacs 0.8A 600V Sens SOT-89

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Datasheet

700In Stock

200On Order

Cut Tape

₩2,121.6

₩1,305.7

₩858

₩683.3

Reel

₩580.3

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

NTC Thermistors Assembly Probe CE2 Type R37=29.37kOhms 2.5% Temp. Range -20 to 90

PT2C-51F-CE2
Shibaura Electronics
1: ₩9,453.6
100In Stock
New Product

Mfr. Part #
PT2C-51F-CE2

Mouser Part #
603-PT2C-51F-CE2

New Product

Shibaura Electronics

NTC Thermistors Assembly Probe CE2 Type R37=29.37kOhms 2.5% Temp. Range -20 to 90

Learn More

Datasheet

100In Stock

₩9,453.6

₩8,611.2

₩7,316.4

₩7,004.4

View

Min.: 1
Mult.: 1

Industrial Surge Protectors SFP2-1S-1-20A-230AC-UT

1292605
Phoenix Contact
1: ₩400,093.2
2In Stock
24On Order
New Product

Mfr. Part #
1292605

Mouser Part #
651-1292605

New Product

Phoenix Contact

Industrial Surge Protectors SFP2-1S-1-20A-230AC-UT

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Datasheet

2In Stock

24On Order

₩400,093.2

Min.: 1
Mult.: 1

Industrial & Electrical Fuses POWrFuse BD 1000Vdc 550A

PF-1NH100E550B2
Bourns
1: ₩569,041.2
4In Stock
New Product

Mfr. Part #
PF-1NH100E550B2

Mouser Part #
652-PF-1NH100E550B2

New Product

Bourns

Industrial & Electrical Fuses POWrFuse BD 1000Vdc 550A

Learn More

Datasheet

4In Stock

₩569,041.2

₩452,478

₩416,972.4

Min.: 1
Mult.: 1

Industrial & Electrical Fuses Specialty Fuses POWR-SPEED SQB ESR 1500VDC 3XL BOLT 250A

ESR3XLUB0250XI
Littelfuse
1: ₩814,975.2
3In Stock
New Product

Mfr. Part #
ESR3XLUB0250XI

Mouser Part #
576-ESR3XLUB0250XI

New Product

Littelfuse

Industrial & Electrical Fuses Specialty Fuses POWR-SPEED SQB ESR 1500VDC 3XL BOLT 250A

Learn More

Datasheet

3In Stock

₩814,975.2

₩669,177.6

₩609,148.8

Quote

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes 7V & 12V 75pF 20A SOT23-3L

SC712-02HTG
Littelfuse
1: ₩2,028
2,084In Stock
100Expected 11/17/2026
New Product

Mfr. Part #
SC712-02HTG

Mouser Part #
576-SC712-02HTG

New Product

Littelfuse

ESD Protection Diodes / TVS Diodes 7V & 12V 75pF 20A SOT23-3L

Learn More

Datasheet

2,084In Stock

100Expected 11/17/2026

Cut Tape

₩2,028

₩1,274.5

₩836.2

₩652.1

Reel

₩503.9

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

NTC Thermistors Assembly Probe HT1 Type R100=3.3kOhms 2.5% Temp. Range -20 to 180

PT3H-51F-HT1
Shibaura Electronics
1: ₩9,453.6
100In Stock
New Product

Mfr. Part #
PT3H-51F-HT1

Mouser Part #
603-PT3H-51F-HT1

New Product

Shibaura Electronics

NTC Thermistors Assembly Probe HT1 Type R100=3.3kOhms 2.5% Temp. Range -20 to 180

Learn More

Datasheet

100In Stock

₩9,453.6

₩8,611.2

₩7,316.4

₩7,004.4

View

Min.: 1
Mult.: 1

NTC Thermistors Assembly Probe EP1 Type R100=3.3kOhms 5% Temp. Range -30 to 120

PT3M-51F-EP1
Shibaura Electronics
1: ₩9,453.6
50In Stock
New Product

Mfr. Part #
PT3M-51F-EP1

Mouser Part #
603-PT3M-51F-EP1

New Product

Shibaura Electronics

NTC Thermistors Assembly Probe EP1 Type R100=3.3kOhms 5% Temp. Range -30 to 120

Learn More

Datasheet

50In Stock

₩9,453.6

₩8,611.2

₩7,316.4

₩7,004.4

View

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes DIO TVS VWM 12V 400W BIDIR SOD323 AUTO GRADE

CDSOD323-T12SC-Q
Bourns
1: ₩1,872
2,040In Stock
New Product

Mfr. Part #
CDSOD323-T12SC-Q

Mouser Part #
652-CDSOD323-T12SC-Q

New Product

Bourns

ESD Protection Diodes / TVS Diodes DIO TVS VWM 12V 400W BIDIR SOD323 AUTO GRADE

Learn More

Datasheet

2,040In Stock

Cut Tape

₩1,872

₩1,170

₩769.1

₩599

Reel

₩463.3

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 5V, 6A, SOD882

SC1003-01ETG
Littelfuse
1: ₩936
10,080In Stock
New Product

Mfr. Part #
SC1003-01ETG

Mouser Part #
576-SC1003-01ETG

New Product

Littelfuse

ESD Protection Diodes / TVS Diodes 5V, 6A, SOD882

Learn More

Datasheet

10,080In Stock

Cut Tape

₩936

₩572.5

₩365

₩304.2

Reel

₩170

View

MouseReel Available

Min.: 1
Mult.: 1

: 10,000

NTC Thermistors Assembly Probe MG1 Type R180=1.247kOhms 3% Temp. Range -40 to 200

PL3C-312-MG1
Shibaura Electronics
1: ₩18,907.2
100In Stock
New Product

Mfr. Part #
PL3C-312-MG1

Mouser Part #
603-PL3C-312-MG1

New Product

Shibaura Electronics

NTC Thermistors Assembly Probe MG1 Type R180=1.247kOhms 3% Temp. Range -40 to 200

Learn More

Datasheet

100In Stock

₩18,907.2

₩17,222.4

₩14,632.8

₩13,977.6

View

Min.: 1
Mult.: 1

NTC Thermistors Assembly Probe MP3 Type R200=1.0kOhms 5% Temp. Range -40 to 200

PL3FC-312-MP3
Shibaura Electronics
1: ₩18,907.2
100In Stock
New Product

Mfr. Part #
PL3FC-312-MP3

Mouser Part #
603-PL3FC-312-MP3

New Product

Shibaura Electronics

NTC Thermistors Assembly Probe MP3 Type R200=1.0kOhms 5% Temp. Range -40 to 200

Learn More

Datasheet

100In Stock

₩18,907.2

₩17,222.4

₩14,632.8

₩13,977.6

View

Min.: 1
Mult.: 1

Circuit Protection

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