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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 #

Industrial Surge Protectors 550V 25kA 10% 4pin 30mm

B72230M0551M401
EPCOS / TDK
1: 72,21 kr.
349In Stock

Mfr. Part No.
B72230M0551M401

Mouser Part No
871-B72230M0551M401

Industrial Surge Protectors 550V 25kA 10% 4pin 30mm

Datasheet

349In Stock

72,21 kr.

56,32 kr.

49,98 kr.

45,88 kr.

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Min.: 1
Mult.: 1

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

B72230M0151M401
EPCOS / TDK
1: 70,12 kr.
495In Stock

Mfr. Part No.
B72230M0151M401

Mouser Part No
871-B72230M0151M401

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

Datasheet

495In Stock

70,12 kr.

54,83 kr.

49,46 kr.

46,55 kr.

View

Min.: 1
Mult.: 1

Varistors 300VAC 10% 20mm 2-pin ThermoFuse

B72220R2301K101
EPCOS / TDK
1: 7,83 kr.
1.748In Stock

Mfr. Part No.
B72220R2301K101

Mouser Part No
871-B72220R2301K101

Varistors 300VAC 10% 20mm 2-pin ThermoFuse

Datasheet

1.748In Stock

7,83 kr.

6,61 kr.

6,28 kr.

5,84 kr.

View

Min.: 1
Mult.: 1

Industrial Surge Protectors 510V 25kA 10% 4pin 30mm

B72230M0511M401
EPCOS / TDK
1: 86,46 kr.
58In Stock

Mfr. Part No.
B72230M0511M401

Mouser Part No
871-B72230M0511M401

Industrial Surge Protectors 510V 25kA 10% 4pin 30mm

Datasheet

58In Stock

86,46 kr.

65,57 kr.

58,34 kr.

52,52 kr.

View

Min.: 1
Mult.: 1

Varistors 320VAC 10% 20mm 2-pin ThermoFuse

B72220R2321K101
EPCOS / TDK
1: 8,06 kr.
794In Stock

Mfr. Part No.
B72220R2321K101

Mouser Part No
871-B72220R2321K101

Varistors 320VAC 10% 20mm 2-pin ThermoFuse

Datasheet

794In Stock

8,06 kr.

6,74 kr.

6,48 kr.

6,01 kr.

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Min.: 1
Mult.: 1

Varistors 150V 14mm 2pin ThermoFuse Varistor

B72214R2151K101
EPCOS / TDK
1: 7,25 kr.
1.058In Stock

Mfr. Part No.
B72214R2151K101

Mouser Part No
871-B72214R2151K101

Varistors 150V 14mm 2pin ThermoFuse Varistor

Datasheet

1.058In Stock

7,25 kr.

5,71 kr.

5,33 kr.

4,98 kr.

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Min.: 1
Mult.: 1

Varistors 510VAC 10% 20mm AdvanceD Thermofused

B72220T2511K105
EPCOS / TDK
1: 15,52 kr.
1.539In Stock

Mfr. Part No.
B72220T2511K105

Mouser Part No
871-B72220T2511K105

Varistors 510VAC 10% 20mm AdvanceD Thermofused

Datasheet

1.539In Stock

15,52 kr.

10,82 kr.

10,44 kr.

9,70 kr.

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Min.: 1
Mult.: 1

Varistors 320VAC 10% 20mm AdvanceD Thermofused

B72220T2321K105
EPCOS / TDK
1: 12,53 kr.
2.355In Stock

Mfr. Part No.
B72220T2321K105

Mouser Part No
871-B72220T2321K105

Varistors 320VAC 10% 20mm AdvanceD Thermofused

Datasheet

2.355In Stock

12,53 kr.

9,25 kr.

8,50 kr.

7,53 kr.

View

Min.: 1
Mult.: 1

Varistors 275V 14mm 2pin ThermoFuse Varistor

B72214R2271K101
EPCOS / TDK
1: 8,65 kr.
1.032In Stock

Mfr. Part No.
B72214R2271K101

Mouser Part No
871-B72214R2271K101

Varistors 275V 14mm 2pin ThermoFuse Varistor

Datasheet

1.032In Stock

8,65 kr.

6,30 kr.

5,71 kr.

4,83 kr.

View

Min.: 1
Mult.: 1

Varistors 175VAC 10% 14mm AdvanceD Thermofused

B72214T2171K105
EPCOS / TDK
1: 9,70 kr.
489In Stock

Mfr. Part No.
B72214T2171K105

Mouser Part No
871-B72214T2171K105

Varistors 175VAC 10% 14mm AdvanceD Thermofused

Datasheet

489In Stock

9,70 kr.

7,12 kr.

6,48 kr.

5,62 kr.

View

Min.: 1
Mult.: 1

Varistors 275VAC 10% 20mm 3-pin ThermoFuse

B72220W2271K101
EPCOS / TDK
1: 11,12 kr.
244In Stock

Mfr. Part No.
B72220W2271K101

Mouser Part No
871-B72220W2271K101

Varistors 275VAC 10% 20mm 3-pin ThermoFuse

Datasheet

244In Stock

11,12 kr.

8,21 kr.

8,06 kr.

Min.: 1
Mult.: 1

Varistors 300V 14mm 2pin ThermoFuse Varistor

B72214R2301K101
EPCOS / TDK
1: 10,37 kr.
987Expected 13/04/2026

Mfr. Part No.
B72214R2301K101

Mouser Part No
871-B72214R2301K101

Varistors 300V 14mm 2pin ThermoFuse Varistor

Datasheet

987Expected 13/04/2026

10,37 kr.

7,53 kr.

6,86 kr.

5,80 kr.

View

Min.: 1
Mult.: 1

Varistors 130VAC 10% 20mm 3-pin ThermoFuse

B72220W2131K101
EPCOS / TDK
1: 11,12 kr.
600Expected 23/02/2026

Mfr. Part No.
B72220W2131K101

Mouser Part No
871-B72220W2131K101

Varistors 130VAC 10% 20mm 3-pin ThermoFuse

Datasheet

600Expected 23/02/2026

11,12 kr.

8,21 kr.

7,45 kr.

6,48 kr.

View

Min.: 1
Mult.: 1

Varistors 320V 14mm 2pin ThermoFuse Varistor

B72214R2321K101
EPCOS / TDK
1: 8,65 kr.
Lead-Time 22 Weeks

Mfr. Part No.
B72214R2321K101

Mouser Part No
871-B72214R2321K101

Varistors 320V 14mm 2pin ThermoFuse Varistor

Datasheet

Lead-Time 22 Weeks

8,65 kr.

6,30 kr.

5,71 kr.

4,83 kr.

View

Min.: 1
Mult.: 1

Varistors 150VAC 10% 14mm AdvanceD Thermofused

B72214T2151K105
EPCOS / TDK
1.960: 5,34 kr.
Non-Stocked Lead-Time 20 Weeks

Mfr. Part No.
B72214T2151K105

Mouser Part No
871-B72214T2151K105

Varistors 150VAC 10% 14mm AdvanceD Thermofused

Datasheet

Non-Stocked Lead-Time 20 Weeks

5,34 kr.

4,96 kr.

4,77 kr.

Min.: 1.960
Mult.: 980

Varistors 175VAC 10% 14mm AdvanceD Thermofused

B72214T2171K106
EPCOS / TDK
1.960: 4,86 kr.
Non-Stocked Lead-Time 20 Weeks

Mfr. Part No.
B72214T2171K106

Mouser Part No
871-B72214T2171K106

Varistors 175VAC 10% 14mm AdvanceD Thermofused

Datasheet

Non-Stocked Lead-Time 20 Weeks

4,86 kr.

Min.: 1.960
Mult.: 980

Varistors 300VAC 10% 14mm AdvanceD Thermofused

B72214T2301K106
EPCOS / TDK
1.960: 4,86 kr.
Non-Stocked Lead-Time 20 Weeks

Mfr. Part No.
B72214T2301K106

Mouser Part No
871-B72214T2301K106

Varistors 300VAC 10% 14mm AdvanceD Thermofused

Datasheet

Non-Stocked Lead-Time 20 Weeks

4,86 kr.

Min.: 1.960
Mult.: 980

Varistors 300VAC 10% 14mm AdvanceD Thermofused

B72214T2301K108
EPCOS / TDK
1.680: 4,89 kr.
Non-Stocked Lead-Time 20 Weeks

Mfr. Part No.
B72214T2301K108

Mouser Part No
871-B72214T2301K108

Varistors 300VAC 10% 14mm AdvanceD Thermofused

Datasheet

Non-Stocked Lead-Time 20 Weeks

4,89 kr.

4,87 kr.

Min.: 1.680
Mult.: 560

Varistors 320VAC 10% 14mm AdvanceD Thermofused

B72214T2321K106
EPCOS / TDK
1.960: 3,74 kr.
Non-Stocked Lead-Time 20 Weeks

Mfr. Part No.
B72214T2321K106

Mouser Part No
871-B72214T2321K106

Varistors 320VAC 10% 14mm AdvanceD Thermofused

Datasheet

Non-Stocked Lead-Time 20 Weeks

3,74 kr.

3,73 kr.

Min.: 1.960
Mult.: 980

Varistors 320VAC 10% 14mm 3-pin ThermoFuse

B72214W2321K101
EPCOS / TDK
1.000: 4,95 kr.
Non-Stocked Lead-Time 22 Weeks

Mfr. Part No.
B72214W2321K101

Mouser Part No
871-B72214W2321K101

Varistors 320VAC 10% 14mm 3-pin ThermoFuse

Datasheet

Non-Stocked Lead-Time 22 Weeks

4,95 kr.

4,60 kr.

4,42 kr.

Min.: 1.000
Mult.: 200

Varistors 380VAC 10% 14mm 3-pin ThermoFuse

B72214W2381K101
EPCOS / TDK
1.000: 4,95 kr.
Non-Stocked Lead-Time 22 Weeks

Mfr. Part No.
B72214W2381K101

Mouser Part No
871-B72214W2381K101

Varistors 380VAC 10% 14mm 3-pin ThermoFuse

Datasheet

Non-Stocked Lead-Time 22 Weeks

4,95 kr.

4,60 kr.

4,42 kr.

Min.: 1.000
Mult.: 200

Varistors 130VAC 10% 20mm 2-pin ThermoFuse

B72220R2131K101
EPCOS / TDK
1: 18,20 kr.
Non-Stocked Lead-Time 22 Weeks

Mfr. Part No.
B72220R2131K101

Mouser Part No
871-B72220R2131K101

Varistors 130VAC 10% 20mm 2-pin ThermoFuse

Datasheet

Non-Stocked Lead-Time 22 Weeks

18,20 kr.

11,49 kr.

10,22 kr.

8,65 kr.

View

Min.: 1
Mult.: 1

Varistors 150VAC 10% 20mm 2-pin ThermoFuse

B72220R2151K101
EPCOS / TDK
1: 18,20 kr.
Non-Stocked Lead-Time 22 Weeks

Mfr. Part No.
B72220R2151K101

Mouser Part No
871-B72220R2151K101

Varistors 150VAC 10% 20mm 2-pin ThermoFuse

Datasheet

Non-Stocked Lead-Time 22 Weeks

18,20 kr.

11,49 kr.

10,22 kr.

8,65 kr.

View

Min.: 1
Mult.: 1

Varistors 250VAC 10% 20mm 2-pin ThermoFuse

B72220R2251K101
EPCOS / TDK
1: 18,20 kr.
Lead-Time 22 Weeks

Mfr. Part No.
B72220R2251K101

Mouser Part No
871-B72220R2251K101

Varistors 250VAC 10% 20mm 2-pin ThermoFuse

Datasheet

Lead-Time 22 Weeks

18,20 kr.

11,49 kr.

10,22 kr.

8,65 kr.

View

Min.: 1
Mult.: 1

Varistors 275VAC 10% 20mm 2-pin ThermoFuse

B72220R2271K101
EPCOS / TDK
1: 10,67 kr.
Non-Stocked Lead-Time 22 Weeks

Mfr. Part No.
B72220R2271K101

Mouser Part No
871-B72220R2271K101

Varistors 275VAC 10% 20mm 2-pin ThermoFuse

Datasheet

Non-Stocked Lead-Time 22 Weeks

10,67 kr.

7,83 kr.

7,12 kr.

6,15 kr.

View

Min.: 1
Mult.: 1