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ThermoFuse™ Varistors

TDK ThermoFuse™ Varistors feature a wide operating voltage range of 130V_RMS to 750V_RMS. These varistors are self-protected under abnormal overvoltage conditions and offer high-energy Advanced series E2. TDK ThermoFuse varistors include either leaded square varistor elements or leaded round varistor elements. These varistors are made of epoxy molding and are flame-retardant as per UL 94 V-0. The ThermoFuse varistors come with tinned copper wire and metal compound wire terminals. Typical applications include power meters, telecom, transient voltage surger suppressors (TVSS), and household appliances.

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Part #

Varistors 50VAC 10% 20mm ThermoFuse

B72220T0500K101
TDK
1,500: $1.85
Non-Stocked Lead-Time 8 Weeks

Mfr. Part No.
B72220T0500K101

Mouser Part No
871-B72220T0500K101

TDK

Varistors 50VAC 10% 20mm ThermoFuse

Datasheet

Non-Stocked Lead-Time 8 Weeks

$1.85

$1.84

Min.: 1,500
Mult.: 1,500

Varistors 50VAC 10% 20mm ThermoFuse

B72220T0500K901
TDK
1,500: $2.72
Non-Stocked Lead-Time 8 Weeks

Mfr. Part No.
B72220T0500K901

Mouser Part No
871-B72220T0500K901

TDK

Varistors 50VAC 10% 20mm ThermoFuse

Datasheet

Non-Stocked Lead-Time 8 Weeks

$2.72

$2.71

Min.: 1,500
Mult.: 1,500

Varistors 510VAC 10% 20mm ThermoFuse

B72220T0511K109
TDK
1,680: $1.25
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
B72220T0511K109

Mouser Part No
871-B72220T0511K109

TDK

Varistors 510VAC 10% 20mm ThermoFuse

Datasheet

Non-Stocked Lead-Time 10 Weeks

$1.25

$1.24

Min.: 1,680
Mult.: 1,680

Varistors 1000VAC 10% 20mm ThermoFuse

B72220T0102K105
TDK
1,260: $1.85
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
B72220T0102K105

Mouser Part No
871-B72220T102K105

TDK

Varistors 1000VAC 10% 20mm ThermoFuse

Datasheet

Non-Stocked Lead-Time 10 Weeks

$1.85

Min.: 1,260
Mult.: 1,260

Varistors 130VAC 10% 20mm AdvanceD Thermofused

B72220T2131K105
TDK
1,500: $1.41
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
B72220T2131K105

Mouser Part No
871-B72220T2131K105

TDK

Varistors 130VAC 10% 20mm AdvanceD Thermofused

Datasheet

Non-Stocked Lead-Time 10 Weeks

$1.41

Min.: 1,500
Mult.: 1,500

Varistors 150VAC 10% 20mm AdvanceD Thermofused

B72220T2151K105
TDK
1: $2.91
Lead-Time 10 Weeks

Mfr. Part No.
B72220T2151K105

Mouser Part No
871-B72220T2151K105

TDK

Varistors 150VAC 10% 20mm AdvanceD Thermofused

Datasheet

Lead-Time 10 Weeks

$2.91

$2.17

$1.99

$1.78

View

Min.: 1
Mult.: 1

Varistors 175VAC 10% 20mm AdvanceD Thermofused

B72220T2171K105
TDK
1,500: $1.20
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
B72220T2171K105

Mouser Part No
871-B72220T2171K105

TDK

Varistors 175VAC 10% 20mm AdvanceD Thermofused

Datasheet

Non-Stocked Lead-Time 10 Weeks

$1.20

$1.19

Min.: 1,500
Mult.: 1,500

Varistors 230VAC 10% 20mm AdvanceD Thermofused

B72220T2231K105
TDK
1,500: $1.21
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
B72220T2231K105

Mouser Part No
871-B72220T2231K105

TDK

Varistors 230VAC 10% 20mm AdvanceD Thermofused

Datasheet

Non-Stocked Lead-Time 10 Weeks

$1.21

$1.20

$1.19

Min.: 1,500
Mult.: 1,500

Varistors 250VAC 10% 20mm AdvanceD Thermofused

B72220T2251K105
TDK
1,500: $1.20
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
B72220T2251K105

Mouser Part No
871-B72220T2251K105

TDK

Varistors 250VAC 10% 20mm AdvanceD Thermofused

Datasheet

Non-Stocked Lead-Time 10 Weeks

$1.20

$1.19

Min.: 1,500
Mult.: 1,500

Varistors 275VAC 10% 20mm AdvanceD Thermofused

B72220T2271K105
TDK
1: $2.37
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
B72220T2271K105

Mouser Part No
871-B72220T2271K105

TDK

Varistors 275VAC 10% 20mm AdvanceD Thermofused

Datasheet

Non-Stocked Lead-Time 10 Weeks

$2.37

$1.76

$1.60

$1.44

View

Min.: 1
Mult.: 1

Varistors 300VAC 10% 20mm AdvanceD Thermofused

B72220T2301K105
TDK
1,500: $1.19
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
B72220T2301K105

Mouser Part No
871-B72220T2301K105

TDK

Varistors 300VAC 10% 20mm AdvanceD Thermofused

Datasheet

Non-Stocked Lead-Time 10 Weeks

$1.19

Min.: 1,500
Mult.: 1,500

Varistors 320VAC 10% 20mm AdvanceD Thermofused

B72220T2321K106
TDK
1,000: $1.23
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
B72220T2321K106

Mouser Part No
871-B72220T2321K106

TDK

Varistors 320VAC 10% 20mm AdvanceD Thermofused

Datasheet

Non-Stocked Lead-Time 10 Weeks

$1.23

$1.19

$1.15

Min.: 1,000
Mult.: 1,000

Varistors 420VAC 10% 20mm AdvanceD Thermofused

B72220T2421K105
TDK
1,500: $1.20
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
B72220T2421K105

Mouser Part No
871-B72220T2421K105

TDK

Varistors 420VAC 10% 20mm AdvanceD Thermofused

Datasheet

Non-Stocked Lead-Time 10 Weeks

$1.20

$1.19

Min.: 1,500
Mult.: 1,500

Varistors 460VAC 10% 20mm AdvanceD Thermofused

B72220T2461K105
TDK
1,680: $1.29
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
B72220T2461K105

Mouser Part No
871-B72220T2461K105

TDK

Varistors 460VAC 10% 20mm AdvanceD Thermofused

Datasheet

Non-Stocked Lead-Time 10 Weeks

$1.29

Min.: 1,680
Mult.: 1,680

Varistors 550VAC 10% 20mm AdvanceD Thermofused

B72220T2551K105
TDK
1,680: $1.29
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
B72220T2551K105

Mouser Part No
871-B72220T2551K105

TDK

Varistors 550VAC 10% 20mm AdvanceD Thermofused

Datasheet

Non-Stocked Lead-Time 10 Weeks

$1.29

Min.: 1,680
Mult.: 1,680

Varistors 625VAC 10% 20mm AdvanceD Thermofused

B72220T2621K105
TDK
1,680: $1.29
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
B72220T2621K105

Mouser Part No
871-B72220T2621K105

TDK

Varistors 625VAC 10% 20mm AdvanceD Thermofused

Datasheet

Non-Stocked Lead-Time 10 Weeks

$1.29

Min.: 1,680
Mult.: 1,680

Varistors 680VAC 10% 20mm AdvanceD Thermofused

B72220T2681K105
TDK
1,260: $1.39
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
B72220T2681K105

Mouser Part No
871-B72220T2681K105

TDK

Varistors 680VAC 10% 20mm AdvanceD Thermofused

Datasheet

Non-Stocked Lead-Time 10 Weeks

$1.39

Min.: 1,260
Mult.: 1,260

Varistors 320VAC 10% 20mm 3-pin ThermoFuse

B72220W2321K101
TDK
1: $2.10
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
B72220W2321K101

Mouser Part No
871-B72220W2321K101

TDK

Varistors 320VAC 10% 20mm 3-pin ThermoFuse

Datasheet

Non-Stocked Lead-Time 10 Weeks

$2.10

$1.55

$1.42

$1.26

View

Min.: 1
Mult.: 1

Industrial Surge Protectors 150V 25kA 10% 4pin 30mm

B72230M0151M401
TDK
1: $11.42
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
B72230M0151M401

Mouser Part No
871-B72230M0151M401

TDK

Industrial Surge Protectors 150V 25kA 10% 4pin 30mm

Datasheet

Non-Stocked Lead-Time 12 Weeks

$11.42

$8.10

$8.09

$8.03

View

Min.: 1
Mult.: 1

Industrial Surge Protectors 320V 25kA 10% 4pin 30mm

B72230M0321M401
TDK
500: $7.99
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
B72230M0321M401

Mouser Part No
871-B72230M0321M401

TDK

Industrial Surge Protectors 320V 25kA 10% 4pin 30mm

Datasheet

Non-Stocked Lead-Time 12 Weeks

$7.99

$7.81

Min.: 500
Mult.: 500

Industrial Surge Protectors 385V 25kA 10% 4pin 30mm

B72230M0381M401
TDK
400: $7.86
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
B72230M0381M401

Mouser Part No
871-B72230M0381M401

TDK

Industrial Surge Protectors 385V 25kA 10% 4pin 30mm

Datasheet

Non-Stocked Lead-Time 12 Weeks

$7.86

$7.77

Min.: 400
Mult.: 400

Industrial Surge Protectors 420V 25kA 10% 4pin 30mm

B72230M0421M401
TDK
1: $12.74
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
B72230M0421M401

Mouser Part No
871-B72230M0421M401

TDK

Industrial Surge Protectors 420V 25kA 10% 4pin 30mm

Datasheet

Non-Stocked Lead-Time 12 Weeks

$12.74

$9.32

$8.06

$7.86

$7.77

Min.: 1
Mult.: 1

Industrial Surge Protectors 680V 25kA 10% 4pin 30mm

B72230M0681M401
TDK
400: $7.86
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
B72230M0681M401

Mouser Part No
871-B72230M0681M401

TDK

Industrial Surge Protectors 680V 25kA 10% 4pin 30mm

Datasheet

Non-Stocked Lead-Time 12 Weeks

$7.86

$7.77

Min.: 400
Mult.: 400

Industrial Surge Protectors 750V 25kA 10% 4pin 30mm

B72230M0751M401
TDK
400: $7.86
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
B72230M0751M401

Mouser Part No
871-B72230M0751M401

TDK

Industrial Surge Protectors 750V 25kA 10% 4pin 30mm

Datasheet

Non-Stocked Lead-Time 12 Weeks

$7.86

$7.77

Min.: 400
Mult.: 400

Varistors 350VAC 10% 20mm AdvanceD Thermofused

B72220T2351K105
TDK
1,500: $1.19
Non-Stocked Lead-Time 26 Weeks

Mfr. Part No.
B72220T2351K105

Mouser Part No
871-B72220T2351K105

TDK

Varistors 350VAC 10% 20mm AdvanceD Thermofused

Datasheet

Non-Stocked Lead-Time 26 Weeks

$1.19

Min.: 1,500
Mult.: 1,500