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Circuit Protection Devices

Bourns manufactures and supplies a wide range of circuit protection technologies, including fuses, PTC thermistors, varistors, GDTs, resettable thermal cut-offs, surge protection devices, hybrid protectors, discrete semiconductor solutions, and more. Reliable surge protection is a critical design consideration to help ensure operational reliability of consumer electronics, industrial/communication equipment, automotive, battery charging, energy storage infrastructure, and renewable energy harvesting ecosystems.

All Results (8,016)

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Part #

Varistors 20mm Radial Disc MOV - Kinked Leads, Bulk

MOV-20D182KK
Bourns
1: $3.97
3,224In Stock

Mfr. Part No.
MOV-20D182KK

Mouser Part No
652-MOV-20D182KK

Bourns

Varistors 20mm Radial Disc MOV - Kinked Leads, Bulk

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Datasheet

3,224In Stock

$3.97

$2.94

$2.68

$2.30

View

Min.: 1
Mult.: 1

Varistors 20mm Radial Disc MOV - Kinked Leads, T&R

MOV-20D781KKTR
Bourns
1: $2.80
3,974In Stock

Mfr. Part No.
MOV-20D781KKTR

Mouser Part No
652-MOV-20D781KKTR

Bourns

Varistors 20mm Radial Disc MOV - Kinked Leads, T&R

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Datasheet

3,974In Stock

Cut Tape

$2.80

$1.75

$1.58

$1.29

Reel

$1.20

View

MouseReel Available

Min.: 1
Mult.: 1

: 250

Industrial Surge Protectors 75VDC 2W+G

1320-S-75
Bourns
1: $213.18
167In Stock

Mfr. Part No.
1320-S-75

Mouser Part No
652-1320-S-75

Bourns

Industrial Surge Protectors 75VDC 2W+G

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Datasheet

167In Stock

$213.18

$160.77

$132.67

$126.29

Min.: 1
Mult.: 1

Industrial Surge Protectors DATA and SIGNAL SPD,2L,110V,Circuit 6

2510-2L6-48
Bourns
1: $112.77
108In Stock

Mfr. Part No.
2510-2L6-48

Mouser Part No
652-2510-2L6-48

Bourns

Industrial Surge Protectors DATA and SIGNAL SPD,2L,110V,Circuit 6

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Datasheet

108In Stock

$112.77

$93.94

$89.01

$89.00

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Min.: 1
Mult.: 1

Thermal Cut-offs TCO, High Current, SMD, 135C, Self Hold AEC-Q200

SDD5ABB
Bourns
1: $3.51
3,814In Stock

Mfr. Part No.
SDD5ABB

Mouser Part No
652-SDD5ABB

Bourns

Thermal Cut-offs TCO, High Current, SMD, 135C, Self Hold AEC-Q200

Datasheet

3,814In Stock

Cut Tape

$3.51

$3.17

$2.56

$2.23

View

Reel

$1.39

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

NTC (Negative Temperature Coefficient) Thermistors 15 dia Power NTC 2.5ohm Y kink bulk

BN-LG15Y2R5MYB
Bourns
1: $1.29
10,234In Stock

Mfr. Part No.
BN-LG15Y2R5MYB

Mouser Part No
652-BN-LG15Y2R5MYB

Bourns

NTC (Negative Temperature Coefficient) Thermistors 15 dia Power NTC 2.5ohm Y kink bulk

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Datasheet

10,234In Stock

$1.29

$0.982

$0.846

$0.816

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors 20 dia Power NTC 5ohm Y kink bulk

BN-LG20Y5R0MYB
Bourns
1: $1.85
5,880In Stock

Mfr. Part No.
BN-LG20Y5R0MYB

Mouser Part No
652-BN-LG20Y5R0MYB

Bourns

NTC (Negative Temperature Coefficient) Thermistors 20 dia Power NTC 5ohm Y kink bulk

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Datasheet

5,880In Stock

$1.85

$1.59

$1.29

$1.21

View

Min.: 1
Mult.: 1

Automotive Fuses POWrFuse BD 275Vac 500Vdc 50A

PF-KB1-50
Bourns
1: $53.31
158In Stock

Mfr. Part No.
PF-KB1-50

Mouser Part No
652-PF-KB1-50

Bourns

Automotive Fuses POWrFuse BD 275Vac 500Vdc 50A

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Datasheet

158In Stock

$53.31

$44.23

$31.78

$28.82

Min.: 1
Mult.: 1

Automotive Fuses POWrFuse TH 275Vac 500Vdc 40A

PF-KT1-40
Bourns
1: $31.40
126In Stock

Mfr. Part No.
PF-KT1-40

Mouser Part No
652-PF-KT1-40

Bourns

Automotive Fuses POWrFuse TH 275Vac 500Vdc 40A

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Datasheet

126In Stock

$31.40

$27.15

$26.48

$26.47

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors 13 dia Power NTC 5ohm Y kink bulk

BN-LG13Y5R0MYB
Bourns
1: $1.10
11,477In Stock

Mfr. Part No.
BN-LG13Y5R0MYB

Mouser Part No
652-BN-LG13Y5R0MYB

Bourns

NTC (Negative Temperature Coefficient) Thermistors 13 dia Power NTC 5ohm Y kink bulk

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Datasheet

11,477In Stock

$1.10

$0.849

$0.732

$0.706

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors 15 dia Power NTC 120ohm Y kink bulk

BN-LG15Y121MYB
Bourns
1: $1.07
11,358In Stock

Mfr. Part No.
BN-LG15Y121MYB

Mouser Part No
652-BN-LG15Y121MYB

Bourns

NTC (Negative Temperature Coefficient) Thermistors 15 dia Power NTC 120ohm Y kink bulk

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Datasheet

11,358In Stock

$1.07

$0.925

$0.846

$0.793

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Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes P6SMB - A 160V

P6SMB160A-Q
Bourns
1: $0.952
119,948In Stock

Mfr. Part No.
P6SMB160A-Q

Mouser Part No
652-P6SMB160A-Q

Bourns

ESD Protection Diodes / TVS Diodes P6SMB - A 160V

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Datasheet

119,948In Stock

Cut Tape

$0.952

$0.583

$0.374

$0.284

Reel

$0.218

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Board Mount Surge Protectors 100mA 850Vimp

P850-G120-WH
Bourns
1: $3.24
24,236In Stock

Mfr. Part No.
P850-G120-WH

Mouser Part No
652-P850-G120-WH

Bourns

Board Mount Surge Protectors 100mA 850Vimp

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Datasheet

Product Comments

24,236In Stock

Cut Tape

$3.24

$2.82

$1.94

$1.58

$1.48

Reel

$1.22

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

PTVS1-029C-H
Bourns
1: $5.94
7,519In Stock

Mfr. Part No.
PTVS1-029C-H

Mouser Part No
652-PTVS1-029C-H

Bourns

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

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Datasheet

7,519In Stock

Cut Tape

$5.94

$4.13

$3.55

$3.44

$3.14

Reel

$3.10

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Surface Mount Fuses 15A 250V FAST ACTING

SF-3812F1500T-2
Bourns
1: $4.96
9,935In Stock

Mfr. Part No.
SF-3812F1500T-2

Mouser Part No
652-SF-3812F1500T-2

Bourns

Surface Mount Fuses 15A 250V FAST ACTING

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Datasheet

9,935In Stock

Cut Tape

$4.96

$4.16

$3.26

$2.90

Reel

$2.05

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Surface Mount Fuses 20A 250V FAST ACTING

SF-3812F2000T-2
Bourns
1: $4.01
9,961In Stock

Mfr. Part No.
SF-3812F2000T-2

Mouser Part No
652-SF-3812F2000T-2

Bourns

Surface Mount Fuses 20A 250V FAST ACTING

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Datasheet

9,961In Stock

Cut Tape

$4.01

$3.59

$3.03

$2.84

Reel

$2.03

View

Min.: 1
Mult.: 1

: 2,500

ESD Protection Diodes / TVS Diodes 22volts 5uA 84.4 Amps Bi-Dir

SMLJ22CA
Bourns
1: $1.60
33,746In Stock

Mfr. Part No.
SMLJ22CA

Mouser Part No
652-SMLJ22CA

Bourns

ESD Protection Diodes / TVS Diodes 22volts 5uA 84.4 Amps Bi-Dir

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Datasheet

33,746In Stock

Cut Tape

$1.60

$1.30

$1.01

$0.832

Reel

$0.628

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

NTC (Negative Temperature Coefficient) Thermistors 10 dia Power NTC 15ohm Y kink bulk

BN-LG10Y150MYB
Bourns
1: $0.626
15,062In Stock

Mfr. Part No.
BN-LG10Y150MYB

Mouser Part No
652-BN-LG10Y150MYB

Bourns

NTC (Negative Temperature Coefficient) Thermistors 10 dia Power NTC 15ohm Y kink bulk

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Datasheet

15,062In Stock

$0.626

$0.533

$0.464

$0.398

View

Min.: 1
Mult.: 1

Automotive Fuses POWrFuse BD 275Vac 500Vdc 15A

PF-KB1-15
Bourns
1: $29.48
144In Stock

Mfr. Part No.
PF-KB1-15

Mouser Part No
652-PF-KB1-15

Bourns

Automotive Fuses POWrFuse BD 275Vac 500Vdc 15A

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Datasheet

144In Stock

$29.48

$26.29

$26.19

$24.15

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors 20 dia Power NTC 2.5ohm Y kink bulk

BN-LG20Y2R5MYB
Bourns
1: $2.12
5,473In Stock

Mfr. Part No.
BN-LG20Y2R5MYB

Mouser Part No
652-BN-LG20Y2R5MYB

Bourns

NTC (Negative Temperature Coefficient) Thermistors 20 dia Power NTC 2.5ohm Y kink bulk

Learn More

Datasheet

5,473In Stock

$2.12

$1.62

$1.29

$1.21

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors 5 dia Power NTC 5ohm Y kink bulk

BN-LG05Y5R0MYB
Bourns
1: $0.476
13,570In Stock

Mfr. Part No.
BN-LG05Y5R0MYB

Mouser Part No
652-BN-LG05Y5R0MYB

Bourns

NTC (Negative Temperature Coefficient) Thermistors 5 dia Power NTC 5ohm Y kink bulk

Learn More

Datasheet

13,570In Stock

$0.476

$0.405

$0.356

$0.286

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors 20 dia Power NTC 20ohm Y kink bulk

BN-LG20Y200MYB
Bourns
1: $2.12
6,193In Stock

Mfr. Part No.
BN-LG20Y200MYB

Mouser Part No
652-BN-LG20Y200MYB

Bourns

NTC (Negative Temperature Coefficient) Thermistors 20 dia Power NTC 20ohm Y kink bulk

Learn More

Datasheet

6,193In Stock

$2.12

$1.39

$1.27

$1.15

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors 10 dia Power NTC 16ohm Y kink bulk

BN-LG10Y160MYB
Bourns
1: $0.816
9,998In Stock

Mfr. Part No.
BN-LG10Y160MYB

Mouser Part No
652-BN-LG10Y160MYB

Bourns

NTC (Negative Temperature Coefficient) Thermistors 10 dia Power NTC 16ohm Y kink bulk

Learn More

Datasheet

9,998In Stock

$0.816

$0.677

$0.581

$0.487

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors 15 dia Power NTC 220ohm Y kink bulk

BN-LG15Y221MYB
Bourns
1: $1.29
5,738In Stock
6,250Expected 7/8/2026

Mfr. Part No.
BN-LG15Y221MYB

Mouser Part No
652-BN-LG15Y221MYB

Bourns

NTC (Negative Temperature Coefficient) Thermistors 15 dia Power NTC 220ohm Y kink bulk

Learn More

Datasheet

5,738In Stock

6,250Expected 7/8/2026

$1.29

$0.982

$0.846

$0.816

View

Min.: 1
Mult.: 1

Automotive Fuses POWrFuse TH 275Vac 500Vdc 30A

PF-KT1-30
Bourns
1: $46.74
279In Stock

Mfr. Part No.
PF-KT1-30

Mouser Part No
652-PF-KT1-30

Bourns

Automotive Fuses POWrFuse TH 275Vac 500Vdc 30A

Learn More

Datasheet

279In Stock

$46.74

$38.77

$25.80

$22.60

Min.: 1
Mult.: 1

Circuit Protection Devices

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Circuit Protection Devices

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