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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.

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Part #

Thermal Cut-offs TRIP TEMP 90C 5C TOL

HC90AY-1
Bourns
1: 1,29 €
3.108In Stock

Mfr. Part No.
HC90AY-1

Mouser Part No
652-HC90AY-1

Bourns

Thermal Cut-offs TRIP TEMP 90C 5C TOL

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Datasheet

3.108In Stock

1,29 €

1,18 €

0,989 €

0,912 €

View

Min.: 1
Mult.: 1

Thermal Cut-offs TRIP TEMP 77C 5C TOL

LC77AY-1
Bourns
1: 1,05 €
7.547In Stock

Mfr. Part No.
LC77AY-1

Mouser Part No
652-LC77AY-1

Bourns

Thermal Cut-offs TRIP TEMP 77C 5C TOL

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Datasheet

7.547In Stock

1,05 €

0,963 €

0,799 €

0,733 €

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Min.: 1
Mult.: 1

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

MF-LSMF330X-2
Bourns
1: 0,645 €
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

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Datasheet

8.916In Stock

Cut Tape

0,645 €

0,495 €

0,464 €

0,35 €

View

Reel

0,259 €

MouseReel Available

Min.: 1
Mult.: 1

: 6.000

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

MF-R250U
Bourns
1: 0,473 €
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

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Datasheet

7.526In Stock

0,473 €

0,403 €

0,289 €

0,275 €

View

Min.: 1
Mult.: 1

Resettable Fuses - PPTC 72V .3A-HD 40A MAX

MF-RX030/72-0
Bourns
1: 0,335 €
12.866In Stock

Mfr. Part No.
MF-RX030/72-0

Mouser Part No
652-MF-RX030/72-0

Bourns

Resettable Fuses - PPTC 72V .3A-HD 40A MAX

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Datasheet

12.866In Stock

0,335 €

0,255 €

0,238 €

0,181 €

View

Min.: 1
Mult.: 1

Varistors PV 140V 10%

PV140K4032R2
Bourns
1: 0,714 €
4.783In Stock

Mfr. Part No.
PV140K4032R2

Mouser Part No
652-PV140K4032R2

Bourns

Varistors PV 140V 10%

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Datasheet

4.783In Stock

Cut Tape

0,714 €

0,456 €

0,40 €

0,373 €

Reel

0,343 €

View

MouseReel Available

Min.: 1
Mult.: 1

: 1.000

Thermal Cut-offs HC TCO 77C BL-51

SA77SB0
Bourns
1: 0,886 €
25.838In Stock

Mfr. Part No.
SA77SB0

Mouser Part No
652-SA77SB0

Bourns

Thermal Cut-offs HC TCO 77C BL-51

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Datasheet

25.838In Stock

Cut Tape

0,886 €

0,815 €

0,677 €

0,624 €

View

Reel

0,394 €

MouseReel Available

Min.: 1
Mult.: 1

: 5.000

Thermal Cut-offs 72C Reinforced Cover SMD HC TCO

SC72AAA
Bourns
1: 1,23 €
4.529In Stock

Mfr. Part No.
SC72AAA

Mouser Part No
652-SC72AAA

Bourns

Thermal Cut-offs 72C Reinforced Cover SMD HC TCO

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Datasheet

4.529In Stock

Cut Tape

1,23 €

0,972 €

0,955 €

0,636 €

View

Reel

0,503 €

MouseReel Available

Min.: 1
Mult.: 1

: 5.000

Surface Mount Fuses 4A Fast Acting 0603 SinglFuse

SF-0603F400-2
Bourns
1: 0,499 €
21.877In Stock

Mfr. Part No.
SF-0603F400-2

Mouser Part No
652-SF-0603F400-2

Bourns

Surface Mount Fuses 4A Fast Acting 0603 SinglFuse

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Datasheet

21.877In Stock

Cut Tape

0,499 €

0,425 €

0,369 €

0,324 €

View

Reel

0,204 €

MouseReel Available

Min.: 1
Mult.: 1

: 5.000

Surface Mount Fuses 1A 32V TIME DELAY

SF-0603SP100-2
Bourns
1: 0,654 €
15.828In Stock

Mfr. Part No.
SF-0603SP100-2

Mouser Part No
652-SF-0603SP100-2

Bourns

Surface Mount Fuses 1A 32V TIME DELAY

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Datasheet

15.828In Stock

Cut Tape

0,654 €

0,519 €

0,438 €

0,384 €

View

Reel

0,343 €

MouseReel Available

Min.: 1
Mult.: 1

: 5.000

Surface Mount Fuses 1.6A 32V TIME DELAY

SF-0603SP160-2
Bourns
1: 0,654 €
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

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Datasheet

18.045In Stock

Cut Tape

0,654 €

0,519 €

0,438 €

0,384 €

View

Reel

0,243 €

MouseReel Available

Min.: 1
Mult.: 1

: 5.000

Surface Mount Fuses 6A 50V TIME DELAY

SF-0603SP600-2
Bourns
1: 0,654 €
13.412In Stock

Mfr. Part No.
SF-0603SP600-2

Mouser Part No
652-SF-0603SP600-2

Bourns

Surface Mount Fuses 6A 50V TIME DELAY

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Datasheet

13.412In Stock

Cut Tape

0,654 €

0,501 €

0,432 €

0,379 €

View

Reel

0,243 €

MouseReel Available

Min.: 1
Mult.: 1

: 5.000

Surface Mount Fuses 0603 time-lag met-foil. 5A Auto

SF-0603SPA500R-2
Bourns
1: 0,912 €
4.306In Stock

Mfr. Part No.
SF-0603SPA500R-2

Mouser Part No
652-SF-0603SPA500R-2

Bourns

Surface Mount Fuses 0603 time-lag met-foil. 5A Auto

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Datasheet

4.306In Stock

Cut Tape

0,912 €

0,728 €

0,612 €

0,531 €

View

Reel

0,326 €

MouseReel Available

Min.: 1
Mult.: 1

: 5.000

Surface Mount Fuses 1206 slow-blow met-foil. 15A Auto

SF-1206SA1500R-2
Bourns
1: 0,843 €
7.076In Stock

Mfr. Part No.
SF-1206SA1500R-2

Mouser Part No
652-SF-1206SA1500R-2

Bourns

Surface Mount Fuses 1206 slow-blow met-foil. 15A Auto

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Datasheet

7.076In Stock

Cut Tape

0,843 €

0,67 €

0,564 €

0,49 €

View

Reel

0,30 €

MouseReel Available

Min.: 1
Mult.: 1

: 5.000

Thyristor Surge Protection Devices - TSPD Very Low Voltage Bidirectional

TISP4030L1AJR-S
Bourns
1: 0,688 €
19.301In Stock

Mfr. Part No.
TISP4030L1AJR-S

Mouser Part No
652-TISP4030L1AJR-S

Bourns

Thyristor Surge Protection Devices - TSPD Very Low Voltage Bidirectional

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Datasheet

19.301In Stock

Cut Tape

0,688 €

0,374 €

0,253 €

0,194 €

Reel

0,143 €

View

MouseReel Available

Min.: 1
Mult.: 1

: 5.000

Thyristor Surge Protection Devices - TSPD Very Low Voltage Bidirectional

TISP4040L1BJR-S
Bourns
1: 0,576 €
11.387In Stock
12.000Expected 8/10/2026

Mfr. Part No.
TISP4040L1BJR-S

Mouser Part No
652-TISP4040L1BJR-S

Bourns

Thyristor Surge Protection Devices - TSPD Very Low Voltage Bidirectional

Learn More

Datasheet

11.387In Stock

12.000Expected 8/10/2026

Cut Tape

0,576 €

0,415 €

0,26 €

0,201 €

Reel

0,157 €

View

MouseReel Available

Min.: 1
Mult.: 1

: 3.000

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors Next-Generation GDT35 Design Kit

DK-GDT35-01
Bourns
1: 26,75 €
43In Stock

Mfr. Part No.
DK-GDT35-01

Mouser Part No
652-DK-GDT35-01

Bourns

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors Next-Generation GDT35 Design Kit

Learn More

Datasheet

43In Stock

26,75 €

24,52 €

23,36 €

Min.: 1
Mult.: 1

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GAS DISCHARGE TUBE MINI 3POLE 420VOLT

2036-42-SM-RPLF
Bourns
1: 1,76 €
1.533In Stock

Mfr. Part No.
2036-42-SM-RPLF

Mouser Part No
652-2036-42-SM-RPLF

Bourns

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GAS DISCHARGE TUBE MINI 3POLE 420VOLT

Datasheet

1.533In Stock

Cut Tape

1,76 €

1,63 €

1,35 €

1,25 €

Reel

0,92 €

View

MouseReel Available

Min.: 1
Mult.: 1

: 1.000

Varistors CHIP GUARD

CG0402MLC-24LGA
Bourns
1: 0,499 €
27.124In Stock

Mfr. Part No.
CG0402MLC-24LGA

Mouser Part No
652-CG0402MLC-24LGA

Bourns

Varistors CHIP GUARD

Learn More

Datasheet

27.124In Stock

Cut Tape

0,499 €

0,297 €

0,183 €

0,16 €

View

Reel

0,085 €

MouseReel Available

Min.: 1
Mult.: 1

: 10.000

Resettable Fuses - PPTC 2920 Resettable SMD PPTC 1.1A/33V

MF-LSMF110X-2
Bourns
1: 0,387 €
18.490In Stock

Mfr. Part No.
MF-LSMF110X-2

Mouser Part No
652-MF-LSMF110X-2

Bourns

Resettable Fuses - PPTC 2920 Resettable SMD PPTC 1.1A/33V

Learn More

Datasheet

18.490In Stock

Cut Tape

0,387 €

0,33 €

0,298 €

0,259 €

View

Reel

0,169 €

MouseReel Available

Min.: 1
Mult.: 1

: 6.000

Resettable Fuses - PPTC 30V 1.35A-HD 40A MAX

MF-R135-2
Bourns
1: 0,464 €
10.330In Stock

Mfr. Part No.
MF-R135-2

Mouser Part No
652-MF-R135-2

Bourns

Resettable Fuses - PPTC 30V 1.35A-HD 40A MAX

Learn More

Datasheet

10.330In Stock

Cut Tape

0,464 €

0,353 €

0,331 €

0,25 €

Reel

0,183 €

View

Min.: 1
Mult.: 1

: 3.000

Resettable Fuses - PPTC 240V .08A-HD 1.2A MAX

MF-RM008/240-2
Bourns
1: 0,533 €
6.218In Stock

Mfr. Part No.
MF-RM008/240-2

Mouser Part No
652-MF-RM008/240-2

Bourns

Resettable Fuses - PPTC 240V .08A-HD 1.2A MAX

Learn More

Datasheet

6.218In Stock

Cut Tape

0,533 €

0,447 €

0,408 €

0,334 €

View

Reel

0,242 €

Min.: 1
Mult.: 1

: 4.000

Resettable Fuses - PPTC 240V .25A-HD 3.5A MAX

MF-RM025/240-0
Bourns
1: 0,464 €
6.332In Stock

Mfr. Part No.
MF-RM025/240-0

Mouser Part No
652-MF-RM025/240-0

Bourns

Resettable Fuses - PPTC 240V .25A-HD 3.5A MAX

Learn More

Datasheet

6.332In Stock

0,464 €

0,431 €

0,379 €

0,355 €

View

Min.: 1
Mult.: 1

Resettable Fuses - PPTC 250V 130MA-HD 3A MAX

MF-SD013/250-2
Bourns
1: 1,06 €
20.135In Stock

Mfr. Part No.
MF-SD013/250-2

Mouser Part No
652-MF-SD013/250-2

Bourns

Resettable Fuses - PPTC 250V 130MA-HD 3A MAX

Learn More

Datasheet

20.135In Stock

Cut Tape

1,06 €

0,946 €

0,836 €

0,611 €

View

Reel

0,409 €

MouseReel Available

Min.: 1
Mult.: 1

: 4.000

Varistors PV 75V 10%

PV75K4032R2
Bourns
1: 0,714 €
5.879In Stock

Mfr. Part No.
PV75K4032R2

Mouser Part No
652-PV75K4032R2

Bourns

Varistors PV 75V 10%

Learn More

Datasheet

5.879In Stock

Cut Tape

0,714 €

0,456 €

0,40 €

0,373 €

Reel

0,349 €

View

MouseReel Available

Min.: 1
Mult.: 1

: 1.000

Circuit Protection Devices

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Circuit Protection Devices

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