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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: 362,309

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Part #

Circuit Breakers 508,DM,24VDC,CL,2-3-3.6,CL2,ATX

REX22D-TD2-100-DC24V-2A/3A/3,6A-CL2-E
E-T-A
1: $144.46
4In Stock
New Product

Mfr. Part No.
REX22D-TD2-100-DC24V-2A/3A/3,6A-CL2-E

Mouser Part No
457-REX22DTD22336CLE

New Product

E-T-A

Circuit Breakers 508,DM,24VDC,CL,2-3-3.6,CL2,ATX

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Datasheet

4In Stock

$144.46

$120.63

$112.10

Min.: 1
Mult.: 1

Circuit Breakers BR 30A/2 Pole Com. Trip 120/240V 22K

BRH230
Eaton Electrical
1: $610.54
3In Stock
New Product

Mfr. Part No.
BRH230

Mouser Part No
504-BRH230

New Product

Eaton Electrical

Circuit Breakers BR 30A/2 Pole Com. Trip 120/240V 22K

Datasheet

3In Stock

$610.54

$455.27

$436.10

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Min.: 1
Mult.: 1

Circuit Breakers PDG2,3P,20A,25KA/480V,FXFXTMTU

PDG23F0020TFFJ
Eaton Electrical
1: $1,004.52
2In Stock
New Product

Mfr. Part No.
PDG23F0020TFFJ

Mouser Part No
504-PDG23F0020TFFJ

New Product

Eaton Electrical

Circuit Breakers PDG2,3P,20A,25KA/480V,FXFXTMTU

Datasheet

2In Stock

$1,004.52

$832.14

$766.92

Min.: 1
Mult.: 1

Circuit Breakers PDG2, 50A, MCP, STD CALIBRATION-HMCPS

PDG23M0050MSAN
Eaton Electrical
1: $1,121.65
1In Stock
New Product

Mfr. Part No.
PDG23M0050MSAN

Mouser Part No
504-PDG23M0050MSAN

New Product

Eaton Electrical

Circuit Breakers PDG2, 50A, MCP, STD CALIBRATION-HMCPS

Datasheet

1In Stock

$1,121.65

$929.17

$856.32

Min.: 1
Mult.: 1

Power Outlet Strips Protect It! 7-Outlet Surge Protector - 5-15R Outlets, 1500 Joules, 6 ft. (1.8 m) Cord, Black

TLP76B
Eaton
1: $28.93
25In Stock
New Product

Mfr. Part No.
TLP76B

Mouser Part No
545-TLP76B

New Product

Eaton

Power Outlet Strips Protect It! 7-Outlet Surge Protector - 5-15R Outlets, 1500 Joules, 6 ft. (1.8 m) Cord, Black

Datasheet

25In Stock

$28.93

$27.00

$26.21

$25.20

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Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors ESA PROBE-RTD PT1000 3000mm ENG MODEL

10219128-03
TE Connectivity
1: $700.64
2In Stock
New Product

Mfr. Part No.
10219128-03

Mouser Part No
571-10219128-03

New Product

TE Connectivity

NTC (Negative Temperature Coefficient) Thermistors ESA PROBE-RTD PT1000 3000mm ENG MODEL

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Datasheet

2In Stock

$700.64

$583.25

$583.17

$580.96

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Min.: 1
Mult.: 1

Industrial Surge Protectors VAL-SPP-T2-335-1+0-UT

1466558
Phoenix Contact
1: $125.83
7In Stock
New Product

Mfr. Part No.
1466558

Mouser Part No
651-1466558

New Product

Phoenix Contact

Industrial Surge Protectors VAL-SPP-T2-335-1+0-UT

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Datasheet

7In Stock

$125.83

$115.60

Min.: 1
Mult.: 1

Industrial Surge Protectors VAL-SPP-T2-335-1+1-UT-R

1466597
Phoenix Contact
1: $250.68
7In Stock
New Product

Mfr. Part No.
1466597

Mouser Part No
651-1466597

New Product

Phoenix Contact

Industrial Surge Protectors VAL-SPP-T2-335-1+1-UT-R

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Datasheet

7In Stock

$250.68

$246.16

Min.: 1
Mult.: 1

Industrial Surge Protectors VAL-US-SPP-120/50-P

1790743
Phoenix Contact
1: $95.25
7In Stock
New Product

Mfr. Part No.
1790743

Mouser Part No
651-1790743

New Product

Phoenix Contact

Industrial Surge Protectors VAL-US-SPP-120/50-P

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Datasheet

7In Stock

$95.25

Min.: 1
Mult.: 1

Industrial Surge Protectors VAL-US-SPP-120/65-P

1790751
Phoenix Contact
1: $97.93
7In Stock
New Product

Mfr. Part No.
1790751

Mouser Part No
651-1790751

New Product

Phoenix Contact

Industrial Surge Protectors VAL-US-SPP-120/65-P

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Datasheet

7In Stock

$97.93

Min.: 1
Mult.: 1

Industrial Surge Protectors VAL-US-SPP-277/50/1+1-R

1790772
Phoenix Contact
1: $246.16
5In Stock
New Product

Mfr. Part No.
1790772

Mouser Part No
651-1790772

New Product

Phoenix Contact

Industrial Surge Protectors VAL-US-SPP-277/50/1+1-R

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Datasheet

5In Stock

$246.16

Min.: 1
Mult.: 1

Industrial Surge Protectors VAL-US-SPP-277/65/3+0-R

1790778
Phoenix Contact
1: $386.62
5In Stock
New Product

Mfr. Part No.
1790778

Mouser Part No
651-1790778

New Product

Phoenix Contact

Industrial Surge Protectors VAL-US-SPP-277/65/3+0-R

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Datasheet

5In Stock

$386.62

Min.: 1
Mult.: 1

Resettable Fuses - PPTC 2920 Resettable SMD PPTC 0.35A/72V

MF-LSMF035/72X-2
Bourns
1: $1.36
3,188In Stock
New Product

Mfr. Part No.
MF-LSMF035/72X-2

Mouser Part No
652-MF-LSMF035/72X-2

New Product

Bourns

Resettable Fuses - PPTC 2920 Resettable SMD PPTC 0.35A/72V

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Datasheet

3,188In Stock

Cut Tape

$1.36

$1.03

$0.779

$0.755

View

Reel

$0.465

Min.: 1
Mult.: 1

: 4,000

Resettable Fuses - PPTC 2920 Resettable SMD PPTC 0.5A/72V

MF-LSMF050/72X-2
Bourns
1: $1.36
3,054In Stock
New Product

Mfr. Part No.
MF-LSMF050/72X-2

Mouser Part No
652-MF-LSMF050/72X-2

New Product

Bourns

Resettable Fuses - PPTC 2920 Resettable SMD PPTC 0.5A/72V

Learn More

Datasheet

3,054In Stock

Cut Tape

$1.36

$1.03

$0.779

$0.755

View

Reel

$0.465

Min.: 1
Mult.: 1

: 4,000

Resettable Fuses - PPTC 2920 Resettable SMD PPTC 2.0A/33V

MF-LSMF200/33X-2
Bourns
1: $1.66
3,047In Stock
New Product

Mfr. Part No.
MF-LSMF200/33X-2

Mouser Part No
652-MF-LSMF200/33X-2

New Product

Bourns

Resettable Fuses - PPTC 2920 Resettable SMD PPTC 2.0A/33V

Learn More

Datasheet

3,047In Stock

Cut Tape

$1.66

$1.24

$0.928

$0.907

View

Reel

$0.554

Min.: 1
Mult.: 1

: 4,000

ESD Protection Diodes / TVS Diodes

2KDFN18A-M3/H
Vishay Semiconductors
1: $1.65
3,000In Stock
New Product

Mfr. Part No.
2KDFN18A-M3/H

Mouser Part No
78-2KDFN18A-M3/H

New Product

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes

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Datasheet

3,000In Stock

$1.65

$1.03

$0.679

$0.525

View

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes

2KDFN75CA-M3/H
Vishay Semiconductors
1: $1.86
3,000In Stock
New Product

Mfr. Part No.
2KDFN75CA-M3/H

Mouser Part No
78-2KDFN75CA-M3/H

New Product

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes

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Datasheet

3,000In Stock

$1.86

$1.18

$0.783

$0.613

View

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes 3KW,13V 5%, DFN6546A TVS

3KDFN13A-M3/H
Vishay Semiconductors
1: $1.54
3,000In Stock
New Product

Mfr. Part No.
3KDFN13A-M3/H

Mouser Part No
78-3KDFN13A-M3/H

New Product

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 3KW,13V 5%, DFN6546A TVS

Datasheet

3,000In Stock

Cut Tape

$1.54

$1.25

$0.975

$0.801

Reel

$0.624

View

Min.: 1
Mult.: 1

: 1,500

ESD Protection Diodes / TVS Diodes 3KW,20V 5%, DFN6546A BIDIR TVS

3KDFN20CA-M3/H
Vishay Semiconductors
1: $2.14
3,000In Stock
New Product

Mfr. Part No.
3KDFN20CA-M3/H

Mouser Part No
78-3KDFN20CA-M3/H

New Product

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 3KW,20V 5%, DFN6546A BIDIR TVS

Learn More

Datasheet

3,000In Stock

Cut Tape

$2.14

$1.36

$0.899

$0.704

Reel

$0.54

View

Min.: 1
Mult.: 1

: 1,500

ESD Protection Diodes / TVS Diodes 3KW,24V 5%, DFN6546A TVS

3KDFN24A-M3/H
Vishay Semiconductors
1: $1.54
3,000In Stock
New Product

Mfr. Part No.
3KDFN24A-M3/H

Mouser Part No
78-3KDFN24A-M3/H

New Product

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 3KW,24V 5%, DFN6546A TVS

Learn More

Datasheet

3,000In Stock

Cut Tape

$1.54

$1.25

$0.975

$0.801

Reel

$0.624

View

Min.: 1
Mult.: 1

: 1,500

ESD Protection Diodes / TVS Diodes 400W,26V5%,SMFBIDIRTVS

4SMF26CA-M3/I
Vishay Semiconductors
1: $0.68
6,671In Stock
New Product

Mfr. Part No.
4SMF26CA-M3/I

Mouser Part No
78-4SMF26CA-M3/I

New Product

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 400W,26V5%,SMFBIDIRTVS

Datasheet

6,671In Stock

Cut Tape

$0.68

$0.477

$0.234

$0.196

Reel

$0.09

View

Min.: 1
Mult.: 1

: 10,000

ESD Protection Diodes / TVS Diodes 400W,18V5%,SMFBIDIRTVS

T4F18CAHM3/I
Vishay Semiconductors
1: $0.639
7,871In Stock
New Product

Mfr. Part No.
T4F18CAHM3/I

Mouser Part No
78-T4F18CAHM3/I

New Product

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 400W,18V5%,SMFBIDIRTVS

Learn More

Datasheet

7,871In Stock

Cut Tape

$0.639

$0.432

$0.249

$0.193

Reel

$0.12

View

Min.: 1
Mult.: 1

: 10,000

Varistors MLV, 1206, 14V

B72520X1140S062
TDK
1: $0.68
6,000In Stock
New Product

Mfr. Part No.
B72520X1140S062

Mouser Part No
871-B72520X1140S062

New Product

TDK

Varistors MLV, 1206, 14V

Learn More

Datasheet

6,000In Stock

Cut Tape

$0.68

$0.48

$0.371

$0.344

Reel

$0.273

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Varistors MLV, 1206, 35V

B72520X1350K062
TDK
1: $0.612
1,400In Stock
2,000Expected 3/8/2026
New Product

Mfr. Part No.
B72520X1350K062

Mouser Part No
871-B72520X1350K062

New Product

TDK

Varistors MLV, 1206, 35V

Learn More

Datasheet

1,400In Stock

2,000Expected 3/8/2026

Cut Tape

$0.612

$0.427

$0.329

$0.306

Reel

$0.241

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

Varistors MLV, 1206, 40V

B72520X1400K062
TDK
1: $0.612
4,000In Stock
New Product

Mfr. Part No.
B72520X1400K062

Mouser Part No
871-B72520X1400K062

New Product

TDK

Varistors MLV, 1206, 40V

Learn More

Datasheet

4,000In Stock

Cut Tape

$0.612

$0.427

$0.329

$0.306

Reel

$0.241

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

Circuit Protection

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