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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 #

Resettable Fuses - PPTC 6V 3.0A-HD 40A MAX

MF-LSMF300X-2
Bourns
1: $1.26
7,590In Stock

Mfr. Part No.
MF-LSMF300X-2

Mouser Part No
652-MF-LSMF300X-2

Bourns

Resettable Fuses - PPTC 6V 3.0A-HD 40A MAX

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Datasheet

7,590In Stock

Cut Tape

$1.26

$0.964

$0.904

$0.683

View

Reel

$0.446

MouseReel Available

Min.: 1
Mult.: 1

: 6,000

Resettable Fuses - PPTC PTC RESETTABLE 2.5A 30V RADIAL LEADED

MF-R250-0-14
Bourns
1: $0.884
7,891In Stock

Mfr. Part No.
MF-R250-0-14

Mouser Part No
652-MF-R250-0-14

Bourns

Resettable Fuses - PPTC PTC RESETTABLE 2.5A 30V RADIAL LEADED

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Datasheet

7,891In Stock

$0.884

$0.67

$0.628

$0.475

View

Min.: 1
Mult.: 1

Resettable Fuses - PPTC PTC 2.0A 16V RADIAL LEADED HI-TEMP

MF-RHT200-2
Bourns
1: $1.02
11,380In Stock

Mfr. Part No.
MF-RHT200-2

Mouser Part No
652-MF-RHT200-2

Bourns

Resettable Fuses - PPTC PTC 2.0A 16V RADIAL LEADED HI-TEMP

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Datasheet

11,380In Stock

Cut Tape

$1.02

$0.782

$0.733

$0.554

Reel

$0.403

View

Min.: 1
Mult.: 1

: 3,000

Resettable Fuses - PPTC PTC 0.12A 250V RADIAL LEADED TELECOM

MF-RX012/250-2
Bourns
1: $0.666
14,614In Stock

Mfr. Part No.
MF-RX012/250-2

Mouser Part No
652-MF-RX012/250-2

Bourns

Resettable Fuses - PPTC PTC 0.12A 250V RADIAL LEADED TELECOM

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Datasheet

14,614In Stock

Cut Tape

$0.666

$0.602

$0.548

$0.507

View

Reel

$0.303

Min.: 1
Mult.: 1

: 6,000

Resettable Fuses - PPTC 72V 1.6A-HD 40A MAX

MF-RX160/72-0
Bourns
1: $0.462
11,471In Stock

Mfr. Part No.
MF-RX160/72-0

Mouser Part No
652-MF-RX160/72-0

Bourns

Resettable Fuses - PPTC 72V 1.6A-HD 40A MAX

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Datasheet

11,471In Stock

$0.462

$0.42

$0.407

$0.366

View

Min.: 1
Mult.: 1

Resettable Fuses - PPTC 60V 1.85A-HD 40A MAX

MF-RX185/72-0
Bourns
1: $0.449
12,673In Stock

Mfr. Part No.
MF-RX185/72-0

Mouser Part No
652-MF-RX185/72-0

Bourns

Resettable Fuses - PPTC 60V 1.85A-HD 40A MAX

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Datasheet

12,673In Stock

$0.449

$0.409

$0.378

$0.374

View

Min.: 1
Mult.: 1

Resettable Fuses - PPTC PTC RESETTABLE 3.0A 72V RADIAL LEADED

MF-RX300/72-2
Bourns
1: $0.966
7,420In Stock

Mfr. Part No.
MF-RX300/72-2

Mouser Part No
652-MF-RX300/72-2

Bourns

Resettable Fuses - PPTC PTC RESETTABLE 3.0A 72V RADIAL LEADED

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Datasheet

7,420In Stock

Cut Tape

$0.966

$0.888

$0.737

$0.68

Reel

$0.446

View

Min.: 1
Mult.: 1

: 3,000

Varistors PV 300V 10%

PV300K3225R2
Bourns
1: $0.993
8,634In Stock

Mfr. Part No.
PV300K3225R2

Mouser Part No
652-PV300K3225R2

Bourns

Varistors PV 300V 10%

Learn More

Datasheet

8,634In Stock

Cut Tape

$0.993

$0.619

$0.549

$0.513

Reel

$0.471

View

Min.: 1
Mult.: 1

: 1,000

Thermal Cut-offs 77C Low Profile SMD HC TCO

SC77AAB
Bourns
1: $1.51
9,540In Stock

Mfr. Part No.
SC77AAB

Mouser Part No
652-SC77AAB

Bourns

Thermal Cut-offs 77C Low Profile SMD HC TCO

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Datasheet

9,540In Stock

Cut Tape

$1.51

$1.40

$1.39

$1.15

View

Reel

$0.65

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

Surface Mount Fuses 0.5A Fast Acting 0402 SinglFuse

SF-0402F050-2
Bourns
1: $0.721
14,861In Stock

Mfr. Part No.
SF-0402F050-2

Mouser Part No
652-SF-0402F050-2

Bourns

Surface Mount Fuses 0.5A Fast Acting 0402 SinglFuse

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Datasheet

14,861In Stock

Cut Tape

$0.721

$0.672

$0.585

$0.54

View

Reel

$0.356

MouseReel Available

Min.: 1
Mult.: 1

: 10,000

Thyristor Surge Protection Devices - TSPD Sidacs Very Low Volt Bidirectional

TISP4025H1BJR-S
Bourns
1: $1.86
9,422In Stock

Mfr. Part No.
TISP4025H1BJR-S

Mouser Part No
652-TISP4025H1BJR-S

Bourns

Thyristor Surge Protection Devices - TSPD Sidacs Very Low Volt Bidirectional

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Datasheet

9,422In Stock

Cut Tape

$1.86

$1.17

$0.774

$0.602

Reel

$0.477

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Thyristor Surge Protection Devices - TSPD 58V 600mA

TISP4070M3BJR-S
Bourns
1: $1.67
11,885In Stock

Mfr. Part No.
TISP4070M3BJR-S

Mouser Part No
652-TISP4070M3BJR-S

Bourns

Thyristor Surge Protection Devices - TSPD 58V 600mA

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Datasheet

11,885In Stock

Cut Tape

$1.67

$1.05

$0.69

$0.536

Reel

$0.422

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Thyristor Surge Protection Devices - TSPD BI-DIRECTIONL PRTCTR 120volts

TISP4145M3BJR-S
Bourns
1: $1.67
8,401In Stock

Mfr. Part No.
TISP4145M3BJR-S

Mouser Part No
652-TISP4145M3BJR-S

Bourns

Thyristor Surge Protection Devices - TSPD BI-DIRECTIONL PRTCTR 120volts

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Datasheet

8,401In Stock

Cut Tape

$1.67

$1.05

$0.69

$0.536

Reel

$0.422

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GAS DISCHARGE TUBE 2POLE 600VOLT

2027-60-BT1LF
Bourns
1: $2.19
3,035In Stock

Mfr. Part No.
2027-60-BT1LF

Mouser Part No
652-2027-60-BT1LF

Bourns

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GAS DISCHARGE TUBE 2POLE 600VOLT

Learn More

Datasheet

3,035In Stock

Cut Tape

$2.19

$2.03

$1.69

$1.55

Reel

$1.11

View

Min.: 1
Mult.: 1

: 1,000

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GAS DISCHARGE TUBE HIGH VOLTAGE

2039-110-SM-RPLF
Bourns
1: $1.67
5,236In Stock

Mfr. Part No.
2039-110-SM-RPLF

Mouser Part No
652-2039-110-SM-RPLF

Bourns

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GAS DISCHARGE TUBE HIGH VOLTAGE

Datasheet

5,236In Stock

Cut Tape

$1.67

$1.54

$1.27

$1.18

Reel

$0.808

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,500

Thermal Cut-offs TRIP TEMP 90C 5C TOL

HC90AY-1
Bourns
1: $1.90
3,108In Stock

Mfr. Part No.
HC90AY-1

Mouser Part No
652-HC90AY-1

Bourns

Thermal Cut-offs TRIP TEMP 90C 5C TOL

Learn More

Datasheet

3,108In Stock

$1.90

$1.80

$1.56

$1.44

View

Min.: 1
Mult.: 1

Thermal Cut-offs TRIP TEMP 77C 5C TOL

LC77AY-1
Bourns
1: $1.66
7,547In Stock

Mfr. Part No.
LC77AY-1

Mouser Part No
652-LC77AY-1

Bourns

Thermal Cut-offs TRIP TEMP 77C 5C TOL

Learn More

Datasheet

7,547In Stock

$1.66

$1.52

$1.26

$1.16

View

Min.: 1
Mult.: 1

Resettable Fuses - PPTC 2920 Resettable SMD PPTC 3.3A/6V

MF-LSMF330X-2
Bourns
1: $1.02
8,916In Stock

Mfr. Part No.
MF-LSMF330X-2

Mouser Part No
652-MF-LSMF330X-2

Bourns

Resettable Fuses - PPTC 2920 Resettable SMD PPTC 3.3A/6V

Learn More

Datasheet

8,916In Stock

Cut Tape

$1.02

$0.782

$0.733

$0.554

View

Reel

$0.409

MouseReel Available

Min.: 1
Mult.: 1

: 6,000

Resettable Fuses - PPTC PTC 2.5A 30V RADIAL LEADED UNCOATED

MF-R250U
Bourns
1: $0.68
7,526In Stock

Mfr. Part No.
MF-R250U

Mouser Part No
652-MF-R250U

Bourns

Resettable Fuses - PPTC PTC 2.5A 30V RADIAL LEADED UNCOATED

Learn More

Datasheet

7,526In Stock

$0.68

$0.611

$0.405

$0.363

View

Min.: 1
Mult.: 1

Varistors PV 140V 10%

PV140K4032R2
Bourns
1: $1.13
4,771In Stock

Mfr. Part No.
PV140K4032R2

Mouser Part No
652-PV140K4032R2

Bourns

Varistors PV 140V 10%

Learn More

Datasheet

4,771In Stock

Cut Tape

$1.13

$0.721

$0.632

$0.59

Reel

$0.543

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

Thermal Cut-offs HC TCO 77C BL-51

SA77SB0
Bourns
1: $1.47
23,218In Stock

Mfr. Part No.
SA77SB0

Mouser Part No
652-SA77SB0

Bourns

Thermal Cut-offs HC TCO 77C BL-51

Learn More

Datasheet

23,218In Stock

Cut Tape

$1.47

$1.35

$1.12

$0.987

View

Reel

$0.624

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

Thermal Cut-offs 72C Reinforced Cover SMD HC TCO

SC72AAA
Bourns
1: $1.50
4,529In Stock

Mfr. Part No.
SC72AAA

Mouser Part No
652-SC72AAA

Bourns

Thermal Cut-offs 72C Reinforced Cover SMD HC TCO

Learn More

Datasheet

4,529In Stock

Cut Tape

$1.50

$1.31

$1.30

$1.04

View

Reel

$0.798

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

Surface Mount Fuses 4A Fast Acting 0603 SinglFuse

SF-0603F400-2
Bourns
1: $0.762
21,803In Stock

Mfr. Part No.
SF-0603F400-2

Mouser Part No
652-SF-0603F400-2

Bourns

Surface Mount Fuses 4A Fast Acting 0603 SinglFuse

Learn More

Datasheet

21,803In Stock

Cut Tape

$0.762

$0.665

$0.583

$0.529

View

Reel

$0.332

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

Surface Mount Fuses 1A 32V TIME DELAY

SF-0603SP100-2
Bourns
1: $1.03
15,776In Stock

Mfr. Part No.
SF-0603SP100-2

Mouser Part No
652-SF-0603SP100-2

Bourns

Surface Mount Fuses 1A 32V TIME DELAY

Learn More

Datasheet

15,776In Stock

Cut Tape

$1.03

$0.821

$0.692

$0.608

View

Reel

$0.384

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

Surface Mount Fuses 1.6A 32V TIME DELAY

SF-0603SP160-2
Bourns
1: $1.03
18,045In Stock

Mfr. Part No.
SF-0603SP160-2

Mouser Part No
652-SF-0603SP160-2

Bourns

Surface Mount Fuses 1.6A 32V TIME DELAY

Learn More

Datasheet

18,045In Stock

Cut Tape

$1.03

$0.821

$0.692

$0.608

View

Reel

$0.384

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

Circuit Protection Devices

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Circuit Protection Devices

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