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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: 359,447

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Part #

NTC (Negative Temperature Coefficient) Thermistors Assembly Probe EP1 Type R0=30kOhms 3% Temp. Range -30 to 120

PB2EP-43-EP1
Shibaura Electronics
1: HK$49.81
100In Stock
New Product

Mfr. Part No.
PB2EP-43-EP1

Mouser Part No
603-PB2EP-43-EP1

New Product

Shibaura Electronics

NTC (Negative Temperature Coefficient) Thermistors Assembly Probe EP1 Type R0=30kOhms 3% Temp. Range -30 to 120

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Datasheet

100In Stock

HK$49.81

HK$45.37

HK$38.55

HK$36.91

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors Assembly Probe EPW1 Type R50=3.485kOhms 2% Temp. Range -20 to 120

PB3M-42D-EPW1
Shibaura Electronics
1: HK$41.51
100In Stock
New Product

Mfr. Part No.
PB3M-42D-EPW1

Mouser Part No
603-PB3M-42D-EPW1

New Product

Shibaura Electronics

NTC (Negative Temperature Coefficient) Thermistors Assembly Probe EPW1 Type R50=3.485kOhms 2% Temp. Range -20 to 120

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Datasheet

100In Stock

HK$41.51

HK$37.81

HK$32.06

HK$30.74

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Min.: 1
Mult.: 1

Industrial Surge Protectors SFP2-1S-1-10A-120AC-UT

1292457
Phoenix Contact
1: HK$1,854.19
1In Stock
9On Order
New Product

Mfr. Part No.
1292457

Mouser Part No
651-1292457

New Product

Phoenix Contact

Industrial Surge Protectors SFP2-1S-1-10A-120AC-UT

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Datasheet

1In Stock

9On Order

HK$1,854.19

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes ESD 5V BI SOD323

CDSOD323-T12C-Q
Bourns
1: HK$9.78
2,081In Stock
New Product

Mfr. Part No.
CDSOD323-T12C-Q

Mouser Part No
652-CDSOD323-T12C-Q

New Product

Bourns

ESD Protection Diodes / TVS Diodes ESD 5V BI SOD323

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Datasheet

2,081In Stock

Cut Tape

HK$9.78

HK$6.09

HK$3.99

HK$3.09

Reel

HK$2.44

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes TVS 7V/12V AEC-Q101

CDSOT23-SM712-Q
Bourns
1: HK$12.41
726In Stock
24,000On Order
New Product

Mfr. Part No.
CDSOT23-SM712-Q

Mouser Part No
652-CDSOT23-SM712-Q

New Product

Bourns

ESD Protection Diodes / TVS Diodes TVS 7V/12V AEC-Q101

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Datasheet

726In Stock

24,000On Order

Cut Tape

HK$12.41

HK$6.88

HK$5.20

HK$4.06

Reel

HK$2.91

HK$2.81

Min.: 1
Mult.: 1

: 3,000

Circuit Breakers LG 3 POLE 150KA FRAME ONLY

LGU3630NN
Eaton Electrical
1: HK$115,350.44
1In Stock
New Product

Mfr. Part No.
LGU3630NN

Mouser Part No
504-LGU3630NN

New Product

Eaton Electrical

Circuit Breakers LG 3 POLE 150KA FRAME ONLY

Datasheet

1In Stock

HK$115,350.44

Min.: 1
Mult.: 1

Connectorised Surge Protectors

P8AX09-N/FF/HE
Citel
1: HK$1,271.22
4In Stock
New At Mouser

Mfr. Part No.
P8AX09-N/FF/HE

Mouser Part No
703-P8AX09-N/FF/HE

New At Mouser

Citel

Connectorised Surge Protectors

Datasheet

4In Stock

HK$1,271.22

HK$1,054.05

HK$994.70

HK$760.68

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes TVS SURF MT DO214AA - SMBJ33A 3K T&R

SMBJ33A-E
Littelfuse
1: HK$4.19
2,083In Stock
New Product

Mfr. Part No.
SMBJ33A-E

Mouser Part No
576-SMBJ33AE

New Product

Littelfuse

ESD Protection Diodes / TVS Diodes TVS SURF MT DO214AA - SMBJ33A 3K T&R

Datasheet

2,083In Stock

Cut Tape

HK$4.19

HK$2.21

HK$1.64

HK$1.25

Reel

HK$0.658

View

Min.: 1
Mult.: 1

: 3,000

Circuit Breakers PDG2,3P,200A,25KA/480V,FXFXTMTU

PDG23F0200TFFJ
Eaton Electrical
1: HK$9,154.94
2In Stock
New Product

Mfr. Part No.
PDG23F0200TFFJ

Mouser Part No
504-PDG23F0200TFFJ

New Product

Eaton Electrical

Circuit Breakers PDG2,3P,200A,25KA/480V,FXFXTMTU

Datasheet

2In Stock

HK$9,154.94

Min.: 1
Mult.: 1

Circuit Breakers E 3P 100A 40kA 415 35kA 480V FXD therm

EGS3100FFG
Eaton Electrical
1: HK$12,129.35
3In Stock
New Product

Mfr. Part No.
EGS3100FFG

Mouser Part No
504-EGS3100FFG

New Product

Eaton Electrical

Circuit Breakers E 3P 100A 40kA 415 35kA 480V FXD therm

Datasheet

3In Stock

HK$12,129.35

Min.: 1
Mult.: 1

Circuit Breakers UL/CSA/IEC SLASH RTD TM MCCB 80A 3P

NZMN1-A80-NA
Eaton Electrical
1: HK$21,625.75
2In Stock
New Product

Mfr. Part No.
NZMN1-A80-NA

Mouser Part No
504-NZMN1-A80-NA

New Product

Eaton Electrical

Circuit Breakers UL/CSA/IEC SLASH RTD TM MCCB 80A 3P

Datasheet

2In Stock

HK$21,625.75

Min.: 1
Mult.: 1

Circuit Breakers PDG2,2P,125A,50KA/480V,FXFXTMTU

PDG22K0125TFFJ
Eaton Electrical
1: HK$8,149.06
5In Stock
New Product

Mfr. Part No.
PDG22K0125TFFJ

Mouser Part No
504-PDG22K0125TFFJ

New Product

Eaton Electrical

Circuit Breakers PDG2,2P,125A,50KA/480V,FXFXTMTU

Datasheet

5In Stock

HK$8,149.06

Min.: 1
Mult.: 1

Fuse Holder FB1 FUSE BLOCK 110A FUSE

FB1-110
Bourns
1: HK$623.16
50In Stock
New Product

Mfr. Part No.
FB1-110

Mouser Part No
652-FB1-110

New Product

Bourns

Fuse Holder FB1 FUSE BLOCK 110A FUSE

Datasheet

50In Stock

HK$623.16

HK$506.11

HK$374.50

HK$368.34

View

Min.: 1
Mult.: 1

Connectorised Surge Protectors COAXIAL SURGE PROTECTOR DEVICE, Slim Line GDT technology

3406.00.0036
HUBER+SUHNER
1: HK$2,117.64
8In Stock
New Product

Mfr. Part No.
3406.00.0036

Mouser Part No
455-3406000036

New Product

HUBER+SUHNER

Connectorised Surge Protectors COAXIAL SURGE PROTECTOR DEVICE, Slim Line GDT technology

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Datasheet

8In Stock

HK$2,117.64

HK$1,917.23

HK$1,843.09

Min.: 1
Mult.: 1

Circuit Breakers PDG3,3P,250A,35KA/480V,PXR10 LSI

PDG33G0250B2NJ
Eaton Electrical
1: HK$21,104.11
1In Stock
New Product

Mfr. Part No.
PDG33G0250B2NJ

Mouser Part No
504-PDG33G0250B2NJ

New Product

Eaton Electrical

Circuit Breakers PDG3,3P,250A,35KA/480V,PXR10 LSI

Datasheet

1In Stock

HK$21,104.11

HK$19,667.83

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes 5KW, 54V 5%,BIDIR,SMC TVS

SMC5K54CAHM3/I
Vishay
1: HK$23.84
2,240In Stock
New Product

Mfr. Part No.
SMC5K54CAHM3/I

Mouser Part No
78-SMC5K54CAHM3/I

New Product

Vishay

ESD Protection Diodes / TVS Diodes 5KW, 54V 5%,BIDIR,SMC TVS

Learn More

Datasheet

2,240In Stock

Cut Tape

HK$23.84

HK$15.45

HK$11.34

HK$9.62

Reel

HK$7.74

View

Min.: 1
Mult.: 1

: 3,500

Connectorised Surge Protectors COAXIAL SURGE PROTECTOR DEVICE, Slim Line GDT technology

3406.00.0037
HUBER+SUHNER
1: HK$2,182.00
52In Stock
20Expected 29/10/2026
New Product

Mfr. Part No.
3406.00.0037

Mouser Part No
455-3406000037

New Product

HUBER+SUHNER

Connectorised Surge Protectors COAXIAL SURGE PROTECTOR DEVICE, Slim Line GDT technology

Learn More

Datasheet

52In Stock

20Expected 29/10/2026

HK$2,182.00

HK$1,975.51

HK$1,899.07

Min.: 1
Mult.: 1

Circuit Breakers TYPE FD BRK 3P 20A 600VAC MAX 18K AIC

FD3020
Eaton Electrical
1: HK$14,902.12
2In Stock
New Product

Mfr. Part No.
FD3020

Mouser Part No
504-FD3020

New Product

Eaton Electrical

Circuit Breakers TYPE FD BRK 3P 20A 600VAC MAX 18K AIC

Datasheet

2In Stock

HK$14,902.12

Min.: 1
Mult.: 1

Circuit Breakers 2P 250AMP HMCP

HM2P250J5
Eaton Electrical
1: HK$18,981.21
1In Stock
New Product

Mfr. Part No.
HM2P250J5

Mouser Part No
504-HM2P250J5

New Product

Eaton Electrical

Circuit Breakers 2P 250AMP HMCP

Datasheet

1In Stock

HK$18,981.21

HK$18,132.58

Min.: 1
Mult.: 1

Circuit Breakers PDG1,4P0%N,80A,25KA/480V,FXFXTMTU

PDG10F0080TFFJ
Eaton Electrical
1: HK$8,571.41
2In Stock
New Product

Mfr. Part No.
PDG10F0080TFFJ

Mouser Part No
504-PDG10F0080TFFJ

New Product

Eaton Electrical

Circuit Breakers PDG1,4P0%N,80A,25KA/480V,FXFXTMTU

Datasheet

2In Stock

HK$8,571.41

Min.: 1
Mult.: 1

Circuit Breakers PDG2,3P,150A,35KA/480V,FXFXTMTU

PDG23G0150TFFJ
Eaton Electrical
1: HK$9,246.60
3In Stock
New Product

Mfr. Part No.
PDG23G0150TFFJ

Mouser Part No
504-PDG23G0150TFFJ

New Product

Eaton Electrical

Circuit Breakers PDG2,3P,150A,35KA/480V,FXFXTMTU

Datasheet

3In Stock

HK$9,246.60

Min.: 1
Mult.: 1

Circuit Breakers PDG2,3P,150A,35KA/480V,PXR25LSI

PDG23G0150P2ML
Eaton Electrical
1: HK$17,565.65
1In Stock
New Product

Mfr. Part No.
PDG23G0150P2ML

Mouser Part No
504-PDG23G0150P2ML

New Product

Eaton Electrical

Circuit Breakers PDG2,3P,150A,35KA/480V,PXR25LSI

Datasheet

1In Stock

HK$17,565.65

HK$16,370.21

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors NTC Mini Ni 0.4 ld 10K 1 % Tp 0.4e/1e A

NTCLE213E3103FHT1A
Vishay / BC Components
1: HK$14.22
2,695In Stock
New Product

Mfr. Part No.
NTCLE213E3103FHT1A

Mouser Part No
594-NTCLE213E313FHT1

New Product

Vishay / BC Components

NTC (Negative Temperature Coefficient) Thermistors NTC Mini Ni 0.4 ld 10K 1 % Tp 0.4e/1e A

Datasheet

2,695In Stock

HK$14.22

HK$10.69

HK$8.55

HK$8.06

View

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes 5KW, 33V 5%,BIDIR,SMC TVS

SMC5K33CAHM3/I
Vishay
1: HK$14.96
6,927In Stock
New Product

Mfr. Part No.
SMC5K33CAHM3/I

Mouser Part No
78-SMC5K33CAHM3/I

New Product

Vishay

ESD Protection Diodes / TVS Diodes 5KW, 33V 5%,BIDIR,SMC TVS

Learn More

Datasheet

6,927In Stock

Cut Tape

HK$14.96

HK$12.49

HK$9.86

HK$8.38

Reel

HK$7.84

View

Min.: 1
Mult.: 1

: 3,500

Power Outlet Strips EA BA PDU 1U, C20 INPUT, 3.33 KW MAX, 11

T9092B-CBSF
Eaton
1: HK$9,957.79
18In Stock
42On Order

Mfr. Part No.
T9092B-CBSF

Mouser Part No
545-T9092B-CBSF

Eaton

Power Outlet Strips EA BA PDU 1U, C20 INPUT, 3.33 KW MAX, 11

Datasheet

18In Stock

42On Order

HK$9,957.79

HK$8,801.73

View

Min.: 1
Mult.: 1

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