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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
EPCOS / TDK
1,500: $1.82
Non-Stocked Lead-Time 20 Weeks

Mfr. Part No.
B72220T0500K101

Mouser Part No
871-B72220T0500K101

Varistors 50VAC 10% 20mm ThermoFuse

Datasheet

Non-Stocked Lead-Time 20 Weeks

$1.82

$1.81

Min.: 1,500
Mult.: 60

Varistors 50VAC 10% 20mm ThermoFuse

B72220T0500K901
EPCOS / TDK
1,500: $2.29
Non-Stocked Lead-Time 20 Weeks

Mfr. Part No.
B72220T0500K901

Mouser Part No
871-B72220T0500K901

Varistors 50VAC 10% 20mm ThermoFuse

Datasheet

Non-Stocked Lead-Time 20 Weeks

$2.29

$2.25

$2.11

Min.: 1,500
Mult.: 60

Varistors 510VAC 10% 20mm ThermoFuse

B72220T0511K109
EPCOS / TDK
1,680: $1.45
Non-Stocked Lead-Time 20 Weeks

Mfr. Part No.
B72220T0511K109

Mouser Part No
871-B72220T0511K109

Varistors 510VAC 10% 20mm ThermoFuse

Datasheet

Non-Stocked Lead-Time 20 Weeks

$1.45

$1.43

Min.: 1,680
Mult.: 140

Varistors 1000VAC 10% 20mm ThermoFuse

B72220T0102K105
EPCOS / TDK
1,260: $1.88
Non-Stocked Lead-Time 20 Weeks

Mfr. Part No.
B72220T0102K105

Mouser Part No
871-B72220T102K105

Varistors 1000VAC 10% 20mm ThermoFuse

Datasheet

Non-Stocked Lead-Time 20 Weeks

$1.88

$1.85

Min.: 1,260
Mult.: 105

Varistors 130VAC 10% 20mm AdvanceD Thermofused

B72220T2131K105
EPCOS / TDK
1,500: $1.40
Non-Stocked Lead-Time 20 Weeks

Mfr. Part No.
B72220T2131K105

Mouser Part No
871-B72220T2131K105

Varistors 130VAC 10% 20mm AdvanceD Thermofused

Datasheet

Non-Stocked Lead-Time 20 Weeks

$1.40

Min.: 1,500
Mult.: 500

Varistors 150VAC 10% 20mm AdvanceD Thermofused

B72220T2151K105
EPCOS / TDK
1,500: $1.53
Non-Stocked Lead-Time 20 Weeks

Mfr. Part No.
B72220T2151K105

Mouser Part No
871-B72220T2151K105

Varistors 150VAC 10% 20mm AdvanceD Thermofused

Datasheet

Non-Stocked Lead-Time 20 Weeks

$1.53

$1.43

Min.: 1,500
Mult.: 500

Varistors 175VAC 10% 20mm AdvanceD Thermofused

B72220T2171K105
EPCOS / TDK
1,500: $1.40
Non-Stocked Lead-Time 20 Weeks

Mfr. Part No.
B72220T2171K105

Mouser Part No
871-B72220T2171K105

Varistors 175VAC 10% 20mm AdvanceD Thermofused

Datasheet

Non-Stocked Lead-Time 20 Weeks

$1.40

Min.: 1,500
Mult.: 500

Varistors 230VAC 10% 20mm AdvanceD Thermofused

B72220T2231K105
EPCOS / TDK
1,500: $1.53
Non-Stocked Lead-Time 20 Weeks

Mfr. Part No.
B72220T2231K105

Mouser Part No
871-B72220T2231K105

Varistors 230VAC 10% 20mm AdvanceD Thermofused

Datasheet

Non-Stocked Lead-Time 20 Weeks

$1.53

$1.43

Min.: 1,500
Mult.: 500

Varistors 250VAC 10% 20mm AdvanceD Thermofused

B72220T2251K105
EPCOS / TDK
1,500: $1.40
Non-Stocked Lead-Time 20 Weeks

Mfr. Part No.
B72220T2251K105

Mouser Part No
871-B72220T2251K105

Varistors 250VAC 10% 20mm AdvanceD Thermofused

Datasheet

Non-Stocked Lead-Time 20 Weeks

$1.40

Min.: 1,500
Mult.: 500

Varistors 275VAC 10% 20mm AdvanceD Thermofused

B72220T2271K105
EPCOS / TDK
1,500: $1.43
Non-Stocked Lead-Time 20 Weeks

Mfr. Part No.
B72220T2271K105

Mouser Part No
871-B72220T2271K105

Varistors 275VAC 10% 20mm AdvanceD Thermofused

Datasheet

Non-Stocked Lead-Time 20 Weeks

$1.43

$1.38

$1.35

Min.: 1,500
Mult.: 500

Varistors 300VAC 10% 20mm AdvanceD Thermofused

B72220T2301K105
EPCOS / TDK
1,500: $1.40
Non-Stocked Lead-Time 20 Weeks

Mfr. Part No.
B72220T2301K105

Mouser Part No
871-B72220T2301K105

Varistors 300VAC 10% 20mm AdvanceD Thermofused

Datasheet

Non-Stocked Lead-Time 20 Weeks

$1.40

Min.: 1,500
Mult.: 500

Varistors 320VAC 10% 20mm AdvanceD Thermofused

B72220T2321K106
EPCOS / TDK
1,000: $1.53
Non-Stocked Lead-Time 20 Weeks

Mfr. Part No.
B72220T2321K106

Mouser Part No
871-B72220T2321K106

Varistors 320VAC 10% 20mm AdvanceD Thermofused

Datasheet

Non-Stocked Lead-Time 20 Weeks

$1.53

$1.43

Min.: 1,000
Mult.: 500

Varistors 350VAC 10% 20mm AdvanceD Thermofused

B72220T2351K105
EPCOS / TDK
1,500: $1.43
Non-Stocked Lead-Time 26 Weeks

Mfr. Part No.
B72220T2351K105

Mouser Part No
871-B72220T2351K105

Varistors 350VAC 10% 20mm AdvanceD Thermofused

Datasheet

Non-Stocked Lead-Time 26 Weeks

$1.43

Min.: 1,500
Mult.: 500

Varistors 385VAC 10% 20mm AdvanceD Thermofused

B72220T2381K105
EPCOS / TDK
1,000: $1.53
Non-Stocked Lead-Time 20 Weeks

Mfr. Part No.
B72220T2381K105

Mouser Part No
871-B72220T2381K105

Varistors 385VAC 10% 20mm AdvanceD Thermofused

Datasheet

Non-Stocked Lead-Time 20 Weeks

$1.53

$1.43

Min.: 1,000
Mult.: 500

Varistors 420VAC 10% 20mm AdvanceD Thermofused

B72220T2421K105
EPCOS / TDK
1,500: $1.40
Non-Stocked Lead-Time 20 Weeks

Mfr. Part No.
B72220T2421K105

Mouser Part No
871-B72220T2421K105

Varistors 420VAC 10% 20mm AdvanceD Thermofused

Datasheet

Non-Stocked Lead-Time 20 Weeks

$1.40

Min.: 1,500
Mult.: 500

Varistors 460VAC 10% 20mm AdvanceD Thermofused

B72220T2461K105
EPCOS / TDK
1,680: $1.52
Non-Stocked Lead-Time 20 Weeks

Mfr. Part No.
B72220T2461K105

Mouser Part No
871-B72220T2461K105

Varistors 460VAC 10% 20mm AdvanceD Thermofused

Datasheet

Non-Stocked Lead-Time 20 Weeks

$1.52

Min.: 1,680
Mult.: 140

Varistors 550VAC 10% 20mm AdvanceD Thermofused

B72220T2551K105
EPCOS / TDK
1,680: $1.53
Non-Stocked Lead-Time 20 Weeks

Mfr. Part No.
B72220T2551K105

Mouser Part No
871-B72220T2551K105

Varistors 550VAC 10% 20mm AdvanceD Thermofused

Datasheet

Non-Stocked Lead-Time 20 Weeks

$1.53

$1.49

$1.46

Min.: 1,680
Mult.: 140

Varistors 625VAC 10% 20mm AdvanceD Thermofused

B72220T2621K105
EPCOS / TDK
1,680: $1.52
Non-Stocked Lead-Time 20 Weeks

Mfr. Part No.
B72220T2621K105

Mouser Part No
871-B72220T2621K105

Varistors 625VAC 10% 20mm AdvanceD Thermofused

Datasheet

Non-Stocked Lead-Time 20 Weeks

$1.52

Min.: 1,680
Mult.: 140

Varistors 680VAC 10% 20mm AdvanceD Thermofused

B72220T2681K105
EPCOS / TDK
1,260: $1.64
Non-Stocked Lead-Time 20 Weeks

Mfr. Part No.
B72220T2681K105

Mouser Part No
871-B72220T2681K105

Varistors 680VAC 10% 20mm AdvanceD Thermofused

Datasheet

Non-Stocked Lead-Time 20 Weeks

$1.64

Min.: 1,260
Mult.: 105

Varistors 320VAC 10% 20mm 3-pin ThermoFuse

B72220W2321K101
EPCOS / TDK
1: $4.14
Non-Stocked Lead-Time 22 Weeks

Mfr. Part No.
B72220W2321K101

Mouser Part No
871-B72220W2321K101

Varistors 320VAC 10% 20mm 3-pin ThermoFuse

Datasheet

Non-Stocked Lead-Time 22 Weeks

$4.14

$2.61

$2.32

$1.97

View

Min.: 1
Mult.: 1

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

B72230M0321M401
EPCOS / TDK
1: $18.74
Non-Stocked Lead-Time 24 Weeks

Mfr. Part No.
B72230M0321M401

Mouser Part No
871-B72230M0321M401

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

Datasheet

Non-Stocked Lead-Time 24 Weeks

$18.74

$14.21

$12.64

$11.38

View

Min.: 1
Mult.: 1

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

B72230M0381M401
EPCOS / TDK
1: $18.74
Non-Stocked Lead-Time 24 Weeks

Mfr. Part No.
B72230M0381M401

Mouser Part No
871-B72230M0381M401

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

Datasheet

Non-Stocked Lead-Time 24 Weeks

$18.74

$14.21

$12.64

$11.38

View

Min.: 1
Mult.: 1

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

B72230M0421M401
EPCOS / TDK
400: $11.38
Non-Stocked Lead-Time 24 Weeks

Mfr. Part No.
B72230M0421M401

Mouser Part No
871-B72230M0421M401

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

Datasheet

Non-Stocked Lead-Time 24 Weeks

$11.38

$10.76

$10.22

Min.: 400
Mult.: 50

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

B72230M0681M401
EPCOS / TDK
400: $11.38
Non-Stocked Lead-Time 24 Weeks

Mfr. Part No.
B72230M0681M401

Mouser Part No
871-B72230M0681M401

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

Datasheet

Non-Stocked Lead-Time 24 Weeks

$11.38

$10.76

$10.22

Min.: 400
Mult.: 50

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

B72230M0751M401
EPCOS / TDK
1: $18.74
Non-Stocked Lead-Time 24 Weeks

Mfr. Part No.
B72230M0751M401

Mouser Part No
871-B72230M0751M401

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

Datasheet

Non-Stocked Lead-Time 24 Weeks

$18.74

$14.21

$12.64

$11.38

View

Min.: 1
Mult.: 1