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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: 362,125

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Part #

NTC Thermistors

NCU15XW223J6SRC
Murata Electronics
1: ¥18.3
9,520In Stock
New Product

Mfr. Part #
NCU15XW223J6SRC

Mouser Part #
81-NCU15XW223J6SRC

New Product

Murata Electronics

NTC Thermistors

Learn More

Datasheet

9,520In Stock

¥18.3

¥14.3

¥12.6

¥10.8

View

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes DIODE ESD BI-DIRECTIONAL 5VWM 5A SOD-723

CPDE5V0-HF
Comchip Technology
1: ¥59.8
4,401In Stock
New Product

Mfr. Part #
CPDE5V0-HF

Mouser Part #
750-CPDE5V0-HF

New Product

Comchip Technology

ESD Protection Diodes / TVS Diodes DIODE ESD BI-DIRECTIONAL 5VWM 5A SOD-723

Learn More

Datasheet

4,401In Stock

Cut Tape

¥59.8

¥42.2

¥26.7

¥16.4

Reel

¥8.1

View

Min.: 1
Mult.: 1

: 8,000

Circuit Breakers Type BR Breaker 100A/2 Pole 120/240V 10K

BR2100
Eaton Electrical
1: ¥74,666.9
3In Stock
New Product

Mfr. Part #
BR2100

Mouser Part #
504-BR2100

New Product

Eaton Electrical

Circuit Breakers Type BR Breaker 100A/2 Pole 120/240V 10K

Datasheet

3In Stock

¥74,666.9

¥51,529.2

¥47,200.6

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Min.: 1
Mult.: 1

Circuit Breakers Type BR Breaker 20A/2 Pole 120/240V 10K

BR220
Eaton Electrical
1: ¥26,916.5
3In Stock
New Product

Mfr. Part #
BR220

Mouser Part #
504-BR220

New Product

Eaton Electrical

Circuit Breakers Type BR Breaker 20A/2 Pole 120/240V 10K

Datasheet

3In Stock

¥26,916.5

¥22,318.9

¥20,797.4

¥17,128.2

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Min.: 1
Mult.: 1

Circuit Breakers PDG2,3P,20A,35KA/480V,FXFXTMTU

PDG23G0020TFFN
Eaton Electrical
1: ¥104,656.3
3In Stock
New Product

Mfr. Part #
PDG23G0020TFFN

Mouser Part #
504-PDG23G0020TFFN

New Product

Eaton Electrical

Circuit Breakers PDG2,3P,20A,35KA/480V,FXFXTMTU

Datasheet

3In Stock

¥104,656.3

¥91,808.5

¥85,684.3

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Min.: 1
Mult.: 1

Fuse Holder CFB1 FUSE BLOCK, NO FUSE

CFB1-NF
Bourns
1: ¥8,625.6
21In Stock
New Product

Mfr. Part #
CFB1-NF

Mouser Part #
652-CFB1-NF

New Product

Bourns

Fuse Holder CFB1 FUSE BLOCK, NO FUSE

Learn More

Datasheet

21In Stock

¥8,625.6

¥7,153.9

¥6,599.2

¥4,836.8

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Min.: 1
Mult.: 1

Connectorized Surge Protectors Indoor 10Gb/s (Cat6A) POE Surge Protective Device with Mounting Kit

MJ8-POE-C6A/G/KF
Citel
1: ¥17,239.5
7In Stock
New Product

Mfr. Part #
MJ8-POE-C6A/G/KF

Mouser Part #
703-MJ8-POE-C6A/G/KF

New Product

Citel

Connectorized Surge Protectors Indoor 10Gb/s (Cat6A) POE Surge Protective Device with Mounting Kit

Datasheet

7In Stock

¥17,239.5

¥14,854.3

¥13,598.6

¥10,690.2

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Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes ESD PROTECTION DIODE SOT323

VCAN33A2-03GHE3A08
Vishay
1: ¥73.1
4,206In Stock
15,000Expected 8/20/2026
New Product

Mfr. Part #
VCAN33A2-03GHE3A08

Mouser Part #
78-VCAN33A2-03HE3A08

New Product

Vishay

ESD Protection Diodes / TVS Diodes ESD PROTECTION DIODE SOT323

Datasheet

4,206In Stock

15,000Expected 8/20/2026

Cut Tape

¥73.1

¥47

¥27.7

¥21.1

Reel

¥15.4

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Circuit Breaker Accessories 250A 3P Thermal Mag Fixed/Adj Trip Unit

JT3250FA
Eaton Electrical
1: ¥299,498.2
1In Stock
New Product

Mfr. Part #
JT3250FA

Mouser Part #
504-JT3250FA

New Product

Eaton Electrical

Circuit Breaker Accessories 250A 3P Thermal Mag Fixed/Adj Trip Unit

1In Stock

¥299,498.2

Min.: 1
Mult.: 1

Circuit Breaker Accessories PDG3, 3P, 600A, 65KA/480V, FRAME ONLY

PDG33M0600FNNN
Eaton Electrical
1: ¥530,543.3
1In Stock
New Product

Mfr. Part #
PDG33M0600FNNN

Mouser Part #
504-PDG33M0600FNNN

New Product

Eaton Electrical

Circuit Breaker Accessories PDG3, 3P, 600A, 65KA/480V, FRAME ONLY

Datasheet

1In Stock

¥530,543.3

Min.: 1
Mult.: 1

Thermal Cutoffs TCO, High Current, SMD, 90C, Self Hold AEC-Q200

SD90ABB
Bourns
1: ¥390.3
15,363In Stock

Mfr. Part #
SD90ABB

Mouser Part #
652-SD90ABB

Bourns

Thermal Cutoffs TCO, High Current, SMD, 90C, Self Hold AEC-Q200

Learn More

Datasheet

15,363In Stock

Cut Tape

¥390.3

¥360.4

¥299

¥265.8

View

Reel

¥181

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Connectorized Surge Protectors Type N F/F In/Out Bulkhead Coax RF Surge Protector, DC - 7GHz and 3GHz - 4GHz, DC Pass, 90W, IP67, 20kA, Gas Discharge Tube, BiDirect

PE73SP1038
Pasternack
1: ¥21,510
6In Stock
New Product

Mfr. Part #
PE73SP1038

Mouser Part #
28-PE73SP1038

New Product

Pasternack

Connectorized Surge Protectors Type N F/F In/Out Bulkhead Coax RF Surge Protector, DC - 7GHz and 3GHz - 4GHz, DC Pass, 90W, IP67, 20kA, Gas Discharge Tube, BiDirect

Datasheet

6In Stock

¥21,510

¥19,481.9

¥18,732.8

¥18,108.2

¥17,108.3

Min.: 1
Mult.: 1

Circuit Breakers EHD 1P 25A W/O TERM W/KPR1A L&L

EHD1025WD01
Eaton Electrical
1: ¥66,131.1
1In Stock
New Product

Mfr. Part #
EHD1025WD01

Mouser Part #
504-EHD1025WD01

New Product

Eaton Electrical

Circuit Breakers EHD 1P 25A W/O TERM W/KPR1A L&L

Datasheet

1In Stock

¥66,131.1

¥38,781

¥38,777.7

Min.: 1
Mult.: 1

Circuit Breakers EHD 1P 70A W/O TERMS. W/KPR1A L & L ENDS

EHD1070WD01
Eaton Electrical
1: ¥131,523
1In Stock
New Product

Mfr. Part #
EHD1070WD01

Mouser Part #
504-EHD1070WD01

New Product

Eaton Electrical

Circuit Breakers EHD 1P 70A W/O TERMS. W/KPR1A L & L ENDS

Datasheet

1In Stock

¥131,523

¥103,021.9

¥98,298

View

Min.: 1
Mult.: 1

Circuit Breakers PDG2,1P,60A,25KA/480V,FXFXTMTU

PDG21F0060TFFJ
Eaton Electrical
1: ¥66,059.6
1In Stock
New Product

Mfr. Part #
PDG21F0060TFFJ

Mouser Part #
504-PDG21F0060TFFJ

New Product

Eaton Electrical

Circuit Breakers PDG2,1P,60A,25KA/480V,FXFXTMTU

Datasheet

1In Stock

¥66,059.6

¥54,723.3

¥50,444.6

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Min.: 1
Mult.: 1

Circuit Breakers PDG2,3P,200A,50KA/480V,FXFXTMTU

PDG23K0200TFFJ
Eaton Electrical
1: ¥199,059.2
1In Stock
New Product

Mfr. Part #
PDG23K0200TFFJ

Mouser Part #
504-PDG23K0200TFFJ

New Product

Eaton Electrical

Circuit Breakers PDG2,3P,200A,50KA/480V,FXFXTMTU

Datasheet

1In Stock

¥199,059.2

Min.: 1
Mult.: 1

Circuit Breakers PDG2,3P,175A,65KA/480V,FXFXTMTU

PDG23M0175TFFL
Eaton Electrical
1: ¥221,288.4
1In Stock
New Product

Mfr. Part #
PDG23M0175TFFL

Mouser Part #
504-PDG23M0175TFFL

New Product

Eaton Electrical

Circuit Breakers PDG2,3P,175A,65KA/480V,FXFXTMTU

Datasheet

1In Stock

¥221,288.4

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes 400W,6.0V 5%,BIDIR,SMA TVS

SMAJ6.0CAHE3_A/H
Vishay Semiconductors
1: ¥117.9
8,999In Stock
New Product

Mfr. Part #
SMAJ6.0CAHE3_A/H

Mouser Part #
78-SMAJ6.0CAHE3_A/H

New Product

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 400W,6.0V 5%,BIDIR,SMA TVS

Datasheet

8,999In Stock

Cut Tape

¥117.9

¥72.6

¥46.8

¥35.7

Reel

¥26.9

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,800

ESD Protection Diodes / TVS Diodes ESD PROTECTION DIODE SOT323

VLIN26A1-03GHE3A08
Vishay
1: ¥66.4
8,749In Stock
New Product

Mfr. Part #
VLIN26A1-03GHE3A08

Mouser Part #
78-VLIN26A1-03HE3A08

New Product

Vishay

ESD Protection Diodes / TVS Diodes ESD PROTECTION DIODE SOT323

Datasheet

8,749In Stock

Cut Tape

¥66.4

¥43.5

¥25.6

¥19.4

Reel

¥14.3

View

Min.: 1
Mult.: 1

: 3,000

NTC Thermistors

NCU15WF104FBSRC
Murata Electronics
1: ¥21.6
9,270In Stock
New Product

Mfr. Part #
NCU15WF104FBSRC

Mouser Part #
81-NCU15WF104FBSRC

New Product

Murata Electronics

NTC Thermistors

Learn More

Datasheet

9,270In Stock

¥21.6

¥18.6

¥16.4

¥13.5

View

Min.: 1
Mult.: 1

NTC Thermistors

NCU15WM474E6SRC
Murata Electronics
1: ¥18.3
6,765In Stock
New Product

Mfr. Part #
NCU15WM474E6SRC

Mouser Part #
81-NCU15WM474E6SRC

New Product

Murata Electronics

NTC Thermistors

Learn More

Datasheet

6,765In Stock

¥18.3

¥14.3

¥12.6

¥10.8

View

Min.: 1
Mult.: 1

NTC Thermistors

NCU15XV103E60RC
Murata Electronics
1: ¥19.9
5,723In Stock
New Product

Mfr. Part #
NCU15XV103E60RC

Mouser Part #
81-NCU15XV103E60RC

New Product

Murata Electronics

NTC Thermistors

Learn More

Datasheet

5,723In Stock

¥19.9

¥18.4

¥16.3

¥13.3

View

Min.: 1
Mult.: 1

NTC Thermistors

NCU15XW222E6SRC
Murata Electronics
1: ¥18.3
9,990In Stock
New Product

Mfr. Part #
NCU15XW222E6SRC

Mouser Part #
81-NCU15XW222E6SRC

New Product

Murata Electronics

NTC Thermistors

Learn More

Datasheet

9,990In Stock

¥18.3

¥14.3

¥12.6

¥10.8

View

Min.: 1
Mult.: 1

NTC Thermistors

NCU15XW472E60RC
Murata Electronics
1: ¥21.6
9,300In Stock
New Product

Mfr. Part #
NCU15XW472E60RC

Mouser Part #
81-NCU15XW472E60RC

New Product

Murata Electronics

NTC Thermistors

Learn More

Datasheet

9,300In Stock

¥21.6

¥18.6

¥16.4

¥13.5

View

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes 1KA high current bidirectional TVS diodes

PTVS1-026C-H
Bourns
1: ¥725.9
10,243In Stock

Mfr. Part #
PTVS1-026C-H

Mouser Part #
652-PTVS1-026C-H

Bourns

ESD Protection Diodes / TVS Diodes 1KA high current bidirectional TVS diodes

Learn More

Datasheet

10,243In Stock

Cut Tape

¥725.9

¥504.9

¥433.5

¥420.2

¥383.7

Reel

¥377

MouseReel Available

Min.: 1
Mult.: 1

: 2,500