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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: $1.31
Non-Stocked Lead-Time 8 Weeks

Mfr. Part No.
B72220T0500K101

Mouser Part No
871-B72220T0500K101

Varistors 50VAC 10% 20mm ThermoFuse

Datasheet

Non-Stocked Lead-Time 8 Weeks

$1.31

Min.: 1,500
Mult.: 60

Varistors 50VAC 10% 20mm ThermoFuse

B72220T0500K901
EPCOS / TDK
1,500: $1.67
Non-Stocked Lead-Time 8 Weeks

Mfr. Part No.
B72220T0500K901

Mouser Part No
871-B72220T0500K901

Varistors 50VAC 10% 20mm ThermoFuse

Datasheet

Non-Stocked Lead-Time 8 Weeks

$1.67

$1.65

$1.52

Min.: 1,500
Mult.: 60

Varistors 510VAC 10% 20mm ThermoFuse

B72220T0511K109
EPCOS / TDK
1,680: $1.04
Non-Stocked Lead-Time 8 Weeks

Mfr. Part No.
B72220T0511K109

Mouser Part No
871-B72220T0511K109

Varistors 510VAC 10% 20mm ThermoFuse

Datasheet

Non-Stocked Lead-Time 8 Weeks

$1.04

Min.: 1,680
Mult.: 140

Varistors 1000VAC 10% 20mm ThermoFuse

B72220T0102K105
EPCOS / TDK
1,260: $1.35
Non-Stocked Lead-Time 8 Weeks

Mfr. Part No.
B72220T0102K105

Mouser Part No
871-B72220T102K105

Varistors 1000VAC 10% 20mm ThermoFuse

Datasheet

Non-Stocked Lead-Time 8 Weeks

$1.35

$1.34

Min.: 1,260
Mult.: 105

Varistors 130VAC 10% 20mm AdvanceD Thermofused

B72220T2131K105
EPCOS / TDK
1,500: $1.01
Non-Stocked Lead-Time 8 Weeks

Mfr. Part No.
B72220T2131K105

Mouser Part No
871-B72220T2131K105

Varistors 130VAC 10% 20mm AdvanceD Thermofused

Datasheet

Non-Stocked Lead-Time 8 Weeks

$1.01

Min.: 1,500
Mult.: 500

Varistors 150VAC 10% 20mm AdvanceD Thermofused

B72220T2151K105
EPCOS / TDK
1,500: $1.03
Non-Stocked Lead-Time 8 Weeks

Mfr. Part No.
B72220T2151K105

Mouser Part No
871-B72220T2151K105

Varistors 150VAC 10% 20mm AdvanceD Thermofused

Datasheet

Non-Stocked Lead-Time 8 Weeks

$1.03

$0.995

$0.974

Min.: 1,500
Mult.: 500

Varistors 175VAC 10% 20mm AdvanceD Thermofused

B72220T2171K105
EPCOS / TDK
1,500: $1.01
Non-Stocked Lead-Time 8 Weeks

Mfr. Part No.
B72220T2171K105

Mouser Part No
871-B72220T2171K105

Varistors 175VAC 10% 20mm AdvanceD Thermofused

Datasheet

Non-Stocked Lead-Time 8 Weeks

$1.01

Min.: 1,500
Mult.: 500

Varistors 230VAC 10% 20mm AdvanceD Thermofused

B72220T2231K105
EPCOS / TDK
1,500: $1.03
Non-Stocked Lead-Time 8 Weeks

Mfr. Part No.
B72220T2231K105

Mouser Part No
871-B72220T2231K105

Varistors 230VAC 10% 20mm AdvanceD Thermofused

Datasheet

Non-Stocked Lead-Time 8 Weeks

$1.03

$0.995

$0.974

Min.: 1,500
Mult.: 500

Varistors 250VAC 10% 20mm AdvanceD Thermofused

B72220T2251K105
EPCOS / TDK
1,500: $1.01
Non-Stocked Lead-Time 8 Weeks

Mfr. Part No.
B72220T2251K105

Mouser Part No
871-B72220T2251K105

Varistors 250VAC 10% 20mm AdvanceD Thermofused

Datasheet

Non-Stocked Lead-Time 8 Weeks

$1.01

Min.: 1,500
Mult.: 500

Varistors 275VAC 10% 20mm AdvanceD Thermofused

B72220T2271K105
EPCOS / TDK
1,500: $1.03
Non-Stocked Lead-Time 8 Weeks

Mfr. Part No.
B72220T2271K105

Mouser Part No
871-B72220T2271K105

Varistors 275VAC 10% 20mm AdvanceD Thermofused

Datasheet

Non-Stocked Lead-Time 8 Weeks

$1.03

$0.995

$0.974

Min.: 1,500
Mult.: 500

Varistors 300VAC 10% 20mm AdvanceD Thermofused

B72220T2301K105
EPCOS / TDK
1,500: $1.01
Non-Stocked Lead-Time 8 Weeks

Mfr. Part No.
B72220T2301K105

Mouser Part No
871-B72220T2301K105

Varistors 300VAC 10% 20mm AdvanceD Thermofused

Datasheet

Non-Stocked Lead-Time 8 Weeks

$1.01

Min.: 1,500
Mult.: 500

Varistors 320VAC 10% 20mm AdvanceD Thermofused

B72220T2321K106
EPCOS / TDK
1,000: $1.03
Non-Stocked Lead-Time 8 Weeks

Mfr. Part No.
B72220T2321K106

Mouser Part No
871-B72220T2321K106

Varistors 320VAC 10% 20mm AdvanceD Thermofused

Datasheet

Non-Stocked Lead-Time 8 Weeks

$1.03

$0.995

$0.974

Min.: 1,000
Mult.: 500

Varistors 385VAC 10% 20mm AdvanceD Thermofused

B72220T2381K105
EPCOS / TDK
1,000: $1.03
Non-Stocked Lead-Time 8 Weeks

Mfr. Part No.
B72220T2381K105

Mouser Part No
871-B72220T2381K105

Varistors 385VAC 10% 20mm AdvanceD Thermofused

Datasheet

Non-Stocked Lead-Time 8 Weeks

$1.03

$0.995

$0.974

Min.: 1,000
Mult.: 500

Varistors 420VAC 10% 20mm AdvanceD Thermofused

B72220T2421K105
EPCOS / TDK
1,500: $1.01
Non-Stocked Lead-Time 8 Weeks

Mfr. Part No.
B72220T2421K105

Mouser Part No
871-B72220T2421K105

Varistors 420VAC 10% 20mm AdvanceD Thermofused

Datasheet

Non-Stocked Lead-Time 8 Weeks

$1.01

Min.: 1,500
Mult.: 500

Varistors 460VAC 10% 20mm AdvanceD Thermofused

B72220T2461K105
EPCOS / TDK
1,680: $1.09
Non-Stocked Lead-Time 8 Weeks

Mfr. Part No.
B72220T2461K105

Mouser Part No
871-B72220T2461K105

Varistors 460VAC 10% 20mm AdvanceD Thermofused

Datasheet

Non-Stocked Lead-Time 8 Weeks

$1.09

Min.: 1,680
Mult.: 140

Varistors 550VAC 10% 20mm AdvanceD Thermofused

B72220T2551K105
EPCOS / TDK
1,680: $1.10
Non-Stocked Lead-Time 8 Weeks

Mfr. Part No.
B72220T2551K105

Mouser Part No
871-B72220T2551K105

Varistors 550VAC 10% 20mm AdvanceD Thermofused

Datasheet

Non-Stocked Lead-Time 8 Weeks

$1.10

$1.07

$1.05

Min.: 1,680
Mult.: 140

Varistors 625VAC 10% 20mm AdvanceD Thermofused

B72220T2621K105
EPCOS / TDK
1,680: $1.09
Non-Stocked Lead-Time 8 Weeks

Mfr. Part No.
B72220T2621K105

Mouser Part No
871-B72220T2621K105

Varistors 625VAC 10% 20mm AdvanceD Thermofused

Datasheet

Non-Stocked Lead-Time 8 Weeks

$1.09

Min.: 1,680
Mult.: 140

Varistors 680VAC 10% 20mm AdvanceD Thermofused

B72220T2681K105
EPCOS / TDK
1,260: $1.18
Non-Stocked Lead-Time 8 Weeks

Mfr. Part No.
B72220T2681K105

Mouser Part No
871-B72220T2681K105

Varistors 680VAC 10% 20mm AdvanceD Thermofused

Datasheet

Non-Stocked Lead-Time 8 Weeks

$1.18

Min.: 1,260
Mult.: 105

Varistors 320VAC 10% 20mm 3-pin ThermoFuse

B72220W2321K101
EPCOS / TDK
1: $1.73
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
B72220W2321K101

Mouser Part No
871-B72220W2321K101

Varistors 320VAC 10% 20mm 3-pin ThermoFuse

Datasheet

Non-Stocked Lead-Time 10 Weeks

$1.73

$1.28

$1.16

$1.01

View

Min.: 1
Mult.: 1

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

B72230M0321M401
EPCOS / TDK
500: $6.82
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
B72230M0321M401

Mouser Part No
871-B72230M0321M401

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

Datasheet

Non-Stocked Lead-Time 12 Weeks

$6.82

$6.67

Min.: 500
Mult.: 50

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

B72230M0381M401
EPCOS / TDK
400: $7.01
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
B72230M0381M401

Mouser Part No
871-B72230M0381M401

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

Datasheet

Non-Stocked Lead-Time 12 Weeks

$7.01

$6.82

$6.67

Min.: 400
Mult.: 50

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

B72230M0421M401
EPCOS / TDK
400: $7.01
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
B72230M0421M401

Mouser Part No
871-B72230M0421M401

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

Datasheet

Non-Stocked Lead-Time 12 Weeks

$7.01

$6.82

$6.67

Min.: 400
Mult.: 50

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

B72230M0681M401
EPCOS / TDK
400: $7.01
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
B72230M0681M401

Mouser Part No
871-B72230M0681M401

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

Datasheet

Non-Stocked Lead-Time 12 Weeks

$7.01

$6.82

$6.67

Min.: 400
Mult.: 50

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

B72230M0751M401
EPCOS / TDK
400: $7.01
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
B72230M0751M401

Mouser Part No
871-B72230M0751M401

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

Datasheet

Non-Stocked Lead-Time 12 Weeks

$7.01

$6.82

$6.67

Min.: 400
Mult.: 50

Varistors 350VAC 10% 20mm AdvanceD Thermofused

B72220T2351K105
EPCOS / TDK
1,500: $1.04
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

$1.04

Min.: 1,500
Mult.: 500