Circuit Protection Kits

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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 #

Circuit Protection Kits Design Kit Next-Generation GDT25

DK-GDT25-02
Bourns
1: ¥3,411.7
65In Stock

Mfr. Part #
DK-GDT25-02

Mouser Part #
652-DK-GDT25-02

Bourns

Circuit Protection Kits Design Kit Next-Generation GDT25

Datasheet

65In Stock

¥3,411.7

¥3,265.5

Min.: 1
Mult.: 1

GDT25

Bulk

Circuit Protection Kits 3KW TVS Diodes SMC PKG Design Kit

CD-LAB9
Bourns
1: ¥11,324.7
1In Stock

Mfr. Part #
CD-LAB9

Mouser Part #
652-CD-LAB9

Bourns

Circuit Protection Kits 3KW TVS Diodes SMC PKG Design Kit

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Datasheet

1In Stock

¥11,324.7

Min.: 1
Mult.: 1
Max.: 2

CD-LAB

TVS Diode Kits

TVS Diodes Design Kit

Bulk

Circuit Protection Kits Test Set

4030-01
Bourns
1: ¥236,858.6
17In Stock

Mfr. Part #
4030-01

Mouser Part #
652-4030-01

Bourns

Circuit Protection Kits Test Set

Datasheet

17In Stock

¥236,858.6

Min.: 1
Mult.: 1

4030-0X

Test Sets

Battery Operated Tester

Bulk

Circuit Protection Kits NextGen GDT28H, Design kit

DK-GDT28H-01
Bourns
1: ¥5,519.5
8In Stock

Mfr. Part #
DK-GDT28H-01

Mouser Part #
652-DK-GDT28H-01

Bourns

Circuit Protection Kits NextGen GDT28H, Design kit

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Datasheet

8In Stock

¥5,519.5

¥4,745.5

¥4,441.5

¥4,295.3

View

Min.: 1
Mult.: 1

GDT28

Design Kits

Bulk

Circuit Protection Kits 10each 32 values

CD-LAB6
Bourns
1: ¥4,248.8
5In Stock

Mfr. Part #
CD-LAB6

Mouser Part #
652-CD-LAB6

Bourns

Circuit Protection Kits 10each 32 values

Learn More

Datasheet

5In Stock

¥4,248.8

Min.: 1
Mult.: 1
Max.: 2

CD-LAB

Design Kits

ESD Protection

Bulk

Circuit Protection Kits DESN KIT NXT GEN GDT25

DK-GDT25-01
Bourns
1: ¥3,901.7
2In Stock

Mfr. Part #
DK-GDT25-01

Mouser Part #
652-DK-GDT25-01

Bourns

Circuit Protection Kits DESN KIT NXT GEN GDT25

Learn More

Datasheet

2In Stock

¥3,901.7

¥2,654.3

¥2,305.5

Min.: 1
Mult.: 1

GDT25

Gas Discharge Tube Kits

Design Kit Next-Generation GDT25

Bulk

Circuit Protection Kits ISOMOV Design kit

DK-IsoMOV-02
Bourns
1: ¥11,959.2
3In Stock

Mfr. Part #
DK-IsoMOV-02

Mouser Part #
652-DK-ISOMOV-02

Bourns

Circuit Protection Kits ISOMOV Design kit

Learn More

Datasheet

3In Stock

¥11,959.2

¥11,921

¥11,904.4

Min.: 1
Mult.: 1

IsoMOV Design Kit

Design Kits

Hybrid Protection

Bulk

Circuit Protection Kits ISOMOV Design kit

DK-IsoMOV-03
Bourns
1: ¥9,838.1
2In Stock

Mfr. Part #
DK-IsoMOV-03

Mouser Part #
652-DK-ISOMOV-03

Bourns

Circuit Protection Kits ISOMOV Design kit

Learn More

Datasheet

2In Stock

¥9,838.1

¥9,804.9

¥9,791.6

Min.: 1
Mult.: 1

IsoMOV Design Kit

Design Kits

Hybrid Protection

Bulk

Circuit Protection Kits ISOMOV Design kit

DK-IsoMOV-04
Bourns
1: ¥7,703.7
1In Stock

Mfr. Part #
DK-IsoMOV-04

Mouser Part #
652-DK-ISOMOV-04

Bourns

Circuit Protection Kits ISOMOV Design kit

Learn More

Datasheet

1In Stock

¥7,703.7

¥7,677.1

¥7,667.2

Min.: 1
Mult.: 1

IsoMOV Design Kit

Design Kits

Hybrid Protection

Bulk

Circuit Protection Kits 5KW TVS Diodes SMC PKG Design Kit

CD-LAB10
Bourns
1: ¥12,293.1
3In Stock

Mfr. Part #
CD-LAB10

Mouser Part #
652-CD-LAB10

Bourns

Circuit Protection Kits 5KW TVS Diodes SMC PKG Design Kit

Learn More

Datasheet

3In Stock

¥12,293.1

Min.: 1
Mult.: 1
Max.: 2

CD-LAB

TVS Diode Kits

TVS Diodes Design Kit

Bulk

Circuit Protection Kits 10each 32 values

CD-LAB4
Bourns
1: ¥4,424.9
5In Stock

Mfr. Part #
CD-LAB4

Mouser Part #
652-CD-LAB4

Bourns

Circuit Protection Kits 10each 32 values

Learn More

Datasheet

5In Stock

¥4,424.9

Min.: 1
Mult.: 1
Max.: 2

CD-LAB

Design Kits

Discrete TVS Diode

Bulk

Circuit Protection Kits 10each 32 values

CD-LAB2
Bourns
1: ¥7,409.7
7Expected 10/28/2026

Mfr. Part #
CD-LAB2

Mouser Part #
652-CD-LAB2

Bourns

Circuit Protection Kits 10each 32 values

Learn More

Datasheet

7Expected 10/28/2026

¥7,409.7

Min.: 1
Mult.: 1
Max.: 2

CD-LAB

Design Kits

Schottky Rectifier

Bulk

Circuit Protection Kits 10each 32 values

CD-LAB3
Bourns
1: ¥3,343.6
6On Order

Mfr. Part #
CD-LAB3

Mouser Part #
652-CD-LAB3

Bourns

Circuit Protection Kits 10each 32 values

Learn More

Datasheet

6On Order

¥3,343.6

Min.: 1
Mult.: 1
Max.: 2

CD-LAB

Design Kits

Discrete TVS Diode

Bulk

Circuit Protection Kits ISOMOV Design kit

DK-IsoMOV-01
Bourns
1: ¥5,884.9
Non-Stocked Lead-Time 12 Weeks

Mfr. Part #
DK-IsoMOV-01

Mouser Part #
652-DK-ISOMOV-01

Bourns

Circuit Protection Kits ISOMOV Design kit

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

¥5,884.9

¥5,532.8

¥5,524.5

¥5,519.5

Min.: 1
Mult.: 1

IsoMOV Design Kit

Design Kits

Hybrid Protection

Bulk

Circuit Protection Kits AEC-Q101 COMPLIANT TVS DIODES

CD-LAB11
Bourns
1: ¥9,952.7
Non-Stocked

Mfr. Part #
CD-LAB11

Mouser Part #
652-CD-LAB11

Bourns

Circuit Protection Kits AEC-Q101 COMPLIANT TVS DIODES

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Datasheet

Non-Stocked

¥9,952.7

Min.: 1
Mult.: 1
Max.: 2

CD-LAB

Design Kits

Transient Voltage Suppressor Kit

AEC-Q101

Kit

Circuit Protection Kits 5each 32 values

CD-LAB5
Bourns
1: ¥6,906.4
Non-Stocked

Mfr. Part #
CD-LAB5

Mouser Part #
652-CD-LAB5

Bourns

Circuit Protection Kits 5each 32 values

Learn More

Datasheet

Non-Stocked

¥6,906.4

Min.: 1
Mult.: 1
Max.: 2

CD-LAB

Design Kits

Discrete TVS Diode

Bulk

Circuit Protection Kits DESIGN KIT HC SERIES 5EA VALUE

HC-LAB1
Bourns
1: ¥4,561.1
Non-Stocked

Mfr. Part #
HC-LAB1

Mouser Part #
652-HC-LAB1

Bourns

Circuit Protection Kits DESIGN KIT HC SERIES 5EA VALUE

Learn More

Datasheet

Non-Stocked

¥4,561.1

¥3,783.8

¥3,489.8

¥2,891.8

View

Min.: 1
Mult.: 1

Design Kits

HC Series Mini-Breaker

Bulk

Circuit Protection Kits DESIGN KIT KCA SERIES 5EA VALUE

KCA-LAB1
Bourns
1: ¥3,355.2
Non-Stocked

Mfr. Part #
KCA-LAB1

Mouser Part #
652-KCA-LAB1

Bourns

Circuit Protection Kits DESIGN KIT KCA SERIES 5EA VALUE

Learn More

Datasheet

Non-Stocked

¥3,355.2

¥3,150.9

¥3,001.4

¥2,818.7

View

Min.: 1
Mult.: 1

KCA

Design Kits

KCA Series Mini-Breaker

AEC-Q100

Bulk

Circuit Protection Kits DESIGN KIT LC SERIES 5EA VALUE

LC-LAB1
Bourns
1: ¥3,724
Non-Stocked

Mfr. Part #
LC-LAB1

Mouser Part #
652-LC-LAB1

Bourns

Circuit Protection Kits DESIGN KIT LC SERIES 5EA VALUE

Learn More

Datasheet

Non-Stocked

¥3,724

¥3,388.4

¥3,106.1

¥2,682.5

View

Min.: 1
Mult.: 1

Design Kits

LC Series Mini-Breaker

Bulk

Circuit Protection Kits Low Resistance BTT Axial Strap Kit

MF-LRLAB
Bourns
1: ¥7,115.7
Non-Stocked

Mfr. Part #
MF-LRLAB

Mouser Part #
652-MF-LRLAB

Bourns

Circuit Protection Kits Low Resistance BTT Axial Strap Kit

Datasheet

Non-Stocked

¥7,115.7

¥5,901.5

¥5,444.8

¥4,561.1

View

Min.: 1
Mult.: 1

MF-LR

PTC Design Kit

Bulk

Circuit Protection Kits Lab Kit Axial MF-LS Series

MF-LSLAB
Bourns
1: ¥7,115.7
Non-Stocked

Mfr. Part #
MF-LSLAB

Mouser Part #
652-MF-LSLAB

Bourns

Circuit Protection Kits Lab Kit Axial MF-LS Series

Datasheet

Non-Stocked

¥7,115.7

¥5,901.5

¥5,444.8

¥4,561.1

View

Min.: 1
Mult.: 1

MF-LS

PTC Design Kit

Bulk

Circuit Protection Kits DESIGN KIT NRA SERIES 5EA VALUE

NR-LAB1
Bourns
1: ¥3,724
Non-Stocked

Mfr. Part #
NR-LAB1

Mouser Part #
652-NR-LAB1

Bourns

Circuit Protection Kits DESIGN KIT NRA SERIES 5EA VALUE

Learn More

Datasheet

Non-Stocked

¥3,724

¥3,388.4

¥3,106.1

¥2,682.5

View

Min.: 1
Mult.: 1

NR-A

Design Kits

NR Series Mini-Breaker

Bulk

Circuit Protection Kits DESIGN KIT NRC SERIES 5EA VALUE

NR-LAB2
Bourns
1: ¥3,724
Non-Stocked

Mfr. Part #
NR-LAB2

Mouser Part #
652-NR-LAB2

Bourns

Circuit Protection Kits DESIGN KIT NRC SERIES 5EA VALUE

Learn More

Datasheet

Non-Stocked

¥3,724

¥3,388.4

¥3,106.1

¥2,682.5

View

Min.: 1
Mult.: 1

NR-C

Design Kits

NR Series Mini-Breaker

Bulk

Circuit Protection Kits SA SERIES TYPE DESIGN KIT

SA-LAB2
Bourns
1: ¥3,724
Non-Stocked

Mfr. Part #
SA-LAB2

Mouser Part #
652-SA-LAB2

Bourns

Circuit Protection Kits SA SERIES TYPE DESIGN KIT

Datasheet

Non-Stocked

¥3,724

¥3,388.4

¥3,106.1

¥2,682.5

View

Min.: 1
Mult.: 1

Thermal Cutoff Kits

Surface Mount Thermal Cutoff Device

Kit

Circuit Protection Kits Unidirectional TBU Port Solution Kit

TBU-LAB3
Bourns
1: ¥9,584
Non-Stocked

Mfr. Part #
TBU-LAB3

Mouser Part #
652-TBU-LAB3

Bourns

Circuit Protection Kits Unidirectional TBU Port Solution Kit

Learn More

Datasheet

Non-Stocked

¥9,584

¥8,479.4

¥7,818.3

¥7,148.9

View

Min.: 1
Mult.: 1

Surge Protection Kits