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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: $2.50
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

$2.50

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

Varistors 50VAC 10% 20mm ThermoFuse

B72220T0500K901
TDK
1,500: $3.70
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

$3.70

$3.69

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

Varistors 510VAC 10% 20mm ThermoFuse

B72220T0511K109
TDK
1,680: $1.69
Non-Stocked Lead-Time 8 Weeks

Mfr. Part No.
B72220T0511K109

Mouser Part No
871-B72220T0511K109

TDK

Varistors 510VAC 10% 20mm ThermoFuse

Datasheet

Non-Stocked Lead-Time 8 Weeks

$1.69

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

Varistors 1000VAC 10% 20mm ThermoFuse

B72220T0102K105
TDK
1,260: $2.52
Non-Stocked Lead-Time 8 Weeks

Mfr. Part No.
B72220T0102K105

Mouser Part No
871-B72220T102K105

TDK

Varistors 1000VAC 10% 20mm ThermoFuse

Datasheet

Non-Stocked Lead-Time 8 Weeks

$2.52

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

Varistors 130VAC 10% 20mm AdvanceD Thermofused

B72220T2131K105
TDK
1,500: $1.92
Non-Stocked Lead-Time 8 Weeks

Mfr. Part No.
B72220T2131K105

Mouser Part No
871-B72220T2131K105

TDK

Varistors 130VAC 10% 20mm AdvanceD Thermofused

Datasheet

Non-Stocked Lead-Time 8 Weeks

$1.92

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

Varistors 150VAC 10% 20mm AdvanceD Thermofused

B72220T2151K105
TDK
1: $3.96
Lead-Time 8 Weeks

Mfr. Part No.
B72220T2151K105

Mouser Part No
871-B72220T2151K105

TDK

Varistors 150VAC 10% 20mm AdvanceD Thermofused

Datasheet

Lead-Time 8 Weeks

$3.96

$2.95

$2.71

$2.42

View

Min.: 1
Mult.: 1

Varistors 175VAC 10% 20mm AdvanceD Thermofused

B72220T2171K105
TDK
1,500: $1.62
Non-Stocked Lead-Time 8 Weeks

Mfr. Part No.
B72220T2171K105

Mouser Part No
871-B72220T2171K105

TDK

Varistors 175VAC 10% 20mm AdvanceD Thermofused

Datasheet

Non-Stocked Lead-Time 8 Weeks

$1.62

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

Varistors 230VAC 10% 20mm AdvanceD Thermofused

B72220T2231K105
TDK
1,500: $1.65
Non-Stocked Lead-Time 8 Weeks

Mfr. Part No.
B72220T2231K105

Mouser Part No
871-B72220T2231K105

TDK

Varistors 230VAC 10% 20mm AdvanceD Thermofused

Datasheet

Non-Stocked Lead-Time 8 Weeks

$1.65

$1.63

$1.62

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

Varistors 250VAC 10% 20mm AdvanceD Thermofused

B72220T2251K105
TDK
1,500: $1.62
Non-Stocked Lead-Time 8 Weeks

Mfr. Part No.
B72220T2251K105

Mouser Part No
871-B72220T2251K105

TDK

Varistors 250VAC 10% 20mm AdvanceD Thermofused

Datasheet

Non-Stocked Lead-Time 8 Weeks

$1.62

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

Varistors 275VAC 10% 20mm AdvanceD Thermofused

B72220T2271K105
TDK
1: $2.88
Non-Stocked Lead-Time 8 Weeks

Mfr. Part No.
B72220T2271K105

Mouser Part No
871-B72220T2271K105

TDK

Varistors 275VAC 10% 20mm AdvanceD Thermofused

Datasheet

Non-Stocked Lead-Time 8 Weeks

$2.88

$2.15

$1.96

$1.75

View

Min.: 1
Mult.: 1

Varistors 300VAC 10% 20mm AdvanceD Thermofused

B72220T2301K105
TDK
1,500: $1.62
Non-Stocked Lead-Time 8 Weeks

Mfr. Part No.
B72220T2301K105

Mouser Part No
871-B72220T2301K105

TDK

Varistors 300VAC 10% 20mm AdvanceD Thermofused

Datasheet

Non-Stocked Lead-Time 8 Weeks

$1.62

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

Varistors 320VAC 10% 20mm AdvanceD Thermofused

B72220T2321K106
TDK
1,000: $1.62
Non-Stocked Lead-Time 8 Weeks

Mfr. Part No.
B72220T2321K106

Mouser Part No
871-B72220T2321K106

TDK

Varistors 320VAC 10% 20mm AdvanceD Thermofused

Datasheet

Non-Stocked Lead-Time 8 Weeks

$1.62

$1.46

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

Varistors 420VAC 10% 20mm AdvanceD Thermofused

B72220T2421K105
TDK
1,500: $1.62
Non-Stocked Lead-Time 8 Weeks

Mfr. Part No.
B72220T2421K105

Mouser Part No
871-B72220T2421K105

TDK

Varistors 420VAC 10% 20mm AdvanceD Thermofused

Datasheet

Non-Stocked Lead-Time 8 Weeks

$1.62

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

Varistors 460VAC 10% 20mm AdvanceD Thermofused

B72220T2461K105
TDK
1,680: $1.75
Non-Stocked Lead-Time 8 Weeks

Mfr. Part No.
B72220T2461K105

Mouser Part No
871-B72220T2461K105

TDK

Varistors 460VAC 10% 20mm AdvanceD Thermofused

Datasheet

Non-Stocked Lead-Time 8 Weeks

$1.75

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

Varistors 550VAC 10% 20mm AdvanceD Thermofused

B72220T2551K105
TDK
1,680: $1.75
Non-Stocked Lead-Time 8 Weeks

Mfr. Part No.
B72220T2551K105

Mouser Part No
871-B72220T2551K105

TDK

Varistors 550VAC 10% 20mm AdvanceD Thermofused

Datasheet

Non-Stocked Lead-Time 8 Weeks

$1.75

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

Varistors 625VAC 10% 20mm AdvanceD Thermofused

B72220T2621K105
TDK
1,680: $1.75
Non-Stocked Lead-Time 8 Weeks

Mfr. Part No.
B72220T2621K105

Mouser Part No
871-B72220T2621K105

TDK

Varistors 625VAC 10% 20mm AdvanceD Thermofused

Datasheet

Non-Stocked Lead-Time 8 Weeks

$1.75

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

Varistors 680VAC 10% 20mm AdvanceD Thermofused

B72220T2681K105
TDK
1,260: $1.89
Non-Stocked Lead-Time 8 Weeks

Mfr. Part No.
B72220T2681K105

Mouser Part No
871-B72220T2681K105

TDK

Varistors 680VAC 10% 20mm AdvanceD Thermofused

Datasheet

Non-Stocked Lead-Time 8 Weeks

$1.89

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

Varistors 320VAC 10% 20mm 3-pin ThermoFuse

B72220W2321K101
TDK
1: $2.86
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

$2.86

$2.11

$1.93

$1.71

View

Min.: 1
Mult.: 1

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

B72230M0151M401
TDK
1: $15.53
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

$15.53

$11.02

$11.00

$10.92

View

Min.: 1
Mult.: 1

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

B72230M0321M401
TDK
500: $10.87
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

$10.87

$10.62

Min.: 480
Mult.: 480

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

B72230M0381M401
TDK
400: $10.85
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

$10.85

Quote

Min.: 400
Mult.: 400

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

B72230M0421M401
TDK
1: $15.53
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

$15.53

$12.20

$10.85

Quote

Min.: 1
Mult.: 1

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

B72230M0681M401
TDK
400: $10.69
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

$10.69

$10.57

Min.: 400
Mult.: 400

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

B72230M0751M401
TDK
400: $10.85
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

$10.85

Quote

Min.: 400
Mult.: 400

Varistors 350VAC 10% 20mm AdvanceD Thermofused

B72220T2351K105
TDK
1,500: $1.62
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

$1.62

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