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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 385VAC 10% 20mm AdvanceD Thermofused

B72220T2381K105
TDK
1: 13,58 kr.
500In Stock

Mfr. Part No.
B72220T2381K105

Mouser Part No
871-B72220T2381K105

TDK

Varistors 385VAC 10% 20mm AdvanceD Thermofused

Datasheet

500In Stock

13,58 kr.

10,15 kr.

9,25 kr.

8,28 kr.

View

Min.: 1
Mult.: 1

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

B72230M0511M401
TDK
1: 87,95 kr.
58In Stock

Mfr. Part No.
B72230M0511M401

Mouser Part No
871-B72230M0511M401

TDK

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

Datasheet

58In Stock

87,95 kr.

68,86 kr.

61,25 kr.

53,71 kr.

View

Min.: 1
Mult.: 1

Varistors 320VAC 10% 20mm 2-pin ThermoFuse

B72220R2321K101
TDK
1: 12,16 kr.
794In Stock

Mfr. Part No.
B72220R2321K101

Mouser Part No
871-B72220R2321K101

TDK

Varistors 320VAC 10% 20mm 2-pin ThermoFuse

Datasheet

794In Stock

12,16 kr.

8,95 kr.

8,21 kr.

7,12 kr.

View

Min.: 1
Mult.: 1

Varistors 130VAC 10% 20mm 3-pin ThermoFuse

B72220W2131K101
TDK
1: 14,02 kr.
590In Stock

Mfr. Part No.
B72220W2131K101

Mouser Part No
871-B72220W2131K101

TDK

Varistors 130VAC 10% 20mm 3-pin ThermoFuse

Datasheet

590In Stock

14,02 kr.

10,37 kr.

9,47 kr.

8,28 kr.

View

Min.: 1
Mult.: 1

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

B72230M0551M401
TDK
1: 82,06 kr.
349In Stock

Mfr. Part No.
B72230M0551M401

Mouser Part No
871-B72230M0551M401

TDK

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

Datasheet

349In Stock

82,06 kr.

63,19 kr.

57,74 kr.

56,62 kr.

View

Min.: 1
Mult.: 1

Varistors 510VAC 10% 20mm AdvanceD Thermofused

B72220T2511K105
TDK
1: 25,29 kr.
1.534In Stock

Mfr. Part No.
B72220T2511K105

Mouser Part No
871-B72220T2511K105

TDK

Varistors 510VAC 10% 20mm AdvanceD Thermofused

Datasheet

1.534In Stock

25,29 kr.

15,96 kr.

14,62 kr.

12,46 kr.

View

Min.: 1
Mult.: 1

Varistors 320VAC 10% 20mm AdvanceD Thermofused

B72220T2321K105
TDK
1: 15,22 kr.
1.652In Stock

Mfr. Part No.
B72220T2321K105

Mouser Part No
871-B72220T2321K105

TDK

Varistors 320VAC 10% 20mm AdvanceD Thermofused

Datasheet

1.652In Stock

15,22 kr.

11,26 kr.

10,29 kr.

9,25 kr.

View

Min.: 1
Mult.: 1

Varistors 150V 14mm 2pin ThermoFuse Varistor

B72214R2151K101
TDK
1: 10,89 kr.
438In Stock

Mfr. Part No.
B72214R2151K101

Mouser Part No
871-B72214R2151K101

TDK

Varistors 150V 14mm 2pin ThermoFuse Varistor

Datasheet

438In Stock

10,89 kr.

8,06 kr.

7,31 kr.

6,21 kr.

View

Min.: 1
Mult.: 1

Varistors 275V 14mm 2pin ThermoFuse Varistor

B72214R2271K101
TDK
1: 9,40 kr.
532In Stock

Mfr. Part No.
B72214R2271K101

Mouser Part No
871-B72214R2271K101

TDK

Varistors 275V 14mm 2pin ThermoFuse Varistor

Datasheet

532In Stock

9,40 kr.

6,93 kr.

6,24 kr.

5,29 kr.

View

Min.: 1
Mult.: 1

Varistors 300V 14mm 2pin ThermoFuse Varistor

B72214R2301K101
TDK
1: 9,40 kr.
987In Stock

Mfr. Part No.
B72214R2301K101

Mouser Part No
871-B72214R2301K101

TDK

Varistors 300V 14mm 2pin ThermoFuse Varistor

Datasheet

987In Stock

9,40 kr.

6,93 kr.

6,24 kr.

5,29 kr.

View

Min.: 1
Mult.: 1

Varistors 175VAC 10% 14mm AdvanceD Thermofused

B72214T2171K105
TDK
1: 10,52 kr.
385In Stock

Mfr. Part No.
B72214T2171K105

Mouser Part No
871-B72214T2171K105

TDK

Varistors 175VAC 10% 14mm AdvanceD Thermofused

Datasheet

385In Stock

10,52 kr.

7,76 kr.

7,06 kr.

6,26 kr.

View

Min.: 1
Mult.: 1

Varistors 300VAC 10% 20mm 2-pin ThermoFuse

B72220R2301K101
TDK
1: 11,56 kr.
941In Stock

Mfr. Part No.
B72220R2301K101

Mouser Part No
871-B72220R2301K101

TDK

Varistors 300VAC 10% 20mm 2-pin ThermoFuse

Datasheet

941In Stock

11,56 kr.

8,50 kr.

7,76 kr.

7,68 kr.

View

Min.: 1
Mult.: 1

Varistors 275VAC 10% 20mm 3-pin ThermoFuse

B72220W2271K101
TDK
1: 12,09 kr.
622In Stock

Mfr. Part No.
B72220W2271K101

Mouser Part No
871-B72220W2271K101

TDK

Varistors 275VAC 10% 20mm 3-pin ThermoFuse

Datasheet

622In Stock

12,09 kr.

8,95 kr.

8,13 kr.

8,06 kr.

View

Min.: 1
Mult.: 1

Varistors 275VAC 10% 20mm 2-pin ThermoFuse

B72220R2271K101
TDK
1: 12,91 kr.
740Expected 07/09/2026

Mfr. Part No.
B72220R2271K101

Mouser Part No
871-B72220R2271K101

TDK

Varistors 275VAC 10% 20mm 2-pin ThermoFuse

Datasheet

740Expected 07/09/2026

12,91 kr.

9,55 kr.

8,65 kr.

7,53 kr.

View

Min.: 1
Mult.: 1

Varistors 320V 14mm 2pin ThermoFuse Varistor

B72214R2321K101
TDK
1: 11,12 kr.
Lead-Time 10 Weeks

Mfr. Part No.
B72214R2321K101

Mouser Part No
871-B72214R2321K101

TDK

Varistors 320V 14mm 2pin ThermoFuse Varistor

Datasheet

Lead-Time 10 Weeks

11,12 kr.

8,13 kr.

7,45 kr.

6,26 kr.

View

Min.: 1
Mult.: 1

Varistors 150VAC 10% 14mm AdvanceD Thermofused

B72214T2151K105
TDK
1.960: 6,80 kr.
Non-Stocked Lead-Time 8 Weeks

Mfr. Part No.
B72214T2151K105

Mouser Part No
871-B72214T2151K105

TDK

Varistors 150VAC 10% 14mm AdvanceD Thermofused

Datasheet

Non-Stocked Lead-Time 8 Weeks

6,80 kr.

Min.: 1.960
Mult.: 1.960

Varistors 175VAC 10% 14mm AdvanceD Thermofused

B72214T2171K106
TDK
1.960: 5,71 kr.
Non-Stocked Lead-Time 8 Weeks

Mfr. Part No.
B72214T2171K106

Mouser Part No
871-B72214T2171K106

TDK

Varistors 175VAC 10% 14mm AdvanceD Thermofused

Datasheet

Non-Stocked Lead-Time 8 Weeks

5,71 kr.

Min.: 1.960
Mult.: 1.960

Varistors 300VAC 10% 14mm AdvanceD Thermofused

B72214T2301K106
TDK
1.960: 5,71 kr.
Non-Stocked Lead-Time 8 Weeks

Mfr. Part No.
B72214T2301K106

Mouser Part No
871-B72214T2301K106

TDK

Varistors 300VAC 10% 14mm AdvanceD Thermofused

Datasheet

Non-Stocked Lead-Time 8 Weeks

5,71 kr.

Min.: 1.960
Mult.: 1.960

Varistors 300VAC 10% 14mm AdvanceD Thermofused

B72214T2301K108
TDK
1.680: 5,71 kr.
Non-Stocked Lead-Time 8 Weeks

Mfr. Part No.
B72214T2301K108

Mouser Part No
871-B72214T2301K108

TDK

Varistors 300VAC 10% 14mm AdvanceD Thermofused

Datasheet

Non-Stocked Lead-Time 8 Weeks

5,71 kr.

Min.: 1.680
Mult.: 1.680

Varistors 320VAC 10% 14mm AdvanceD Thermofused

B72214T2321K106
TDK
1.960: 4,36 kr.
Non-Stocked Lead-Time 8 Weeks

Mfr. Part No.
B72214T2321K106

Mouser Part No
871-B72214T2321K106

TDK

Varistors 320VAC 10% 14mm AdvanceD Thermofused

Datasheet

Non-Stocked Lead-Time 8 Weeks

4,36 kr.

Min.: 1.960
Mult.: 1.960

Varistors 320VAC 10% 14mm 3-pin ThermoFuse

B72214W2321K101
TDK
1: 11,71 kr.
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
B72214W2321K101

Mouser Part No
871-B72214W2321K101

TDK

Varistors 320VAC 10% 14mm 3-pin ThermoFuse

Datasheet

Non-Stocked Lead-Time 10 Weeks

11,71 kr.

8,50 kr.

7,76 kr.

6,61 kr.

View

Min.: 1
Mult.: 1

Varistors 380VAC 10% 14mm 3-pin ThermoFuse

B72214W2381K101
TDK
1.000: 5,39 kr.
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
B72214W2381K101

Mouser Part No
871-B72214W2381K101

TDK

Varistors 380VAC 10% 14mm 3-pin ThermoFuse

Datasheet

Non-Stocked Lead-Time 10 Weeks

5,39 kr.

5,30 kr.

4,86 kr.

Min.: 1.000
Mult.: 1.000

Varistors 130VAC 10% 20mm 2-pin ThermoFuse

B72220R2131K101
TDK
750: 8,13 kr.
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
B72220R2131K101

Mouser Part No
871-B72220R2131K101

TDK

Varistors 130VAC 10% 20mm 2-pin ThermoFuse

Datasheet

Non-Stocked Lead-Time 10 Weeks

8,13 kr.

7,98 kr.

7,68 kr.

7,53 kr.

Min.: 750
Mult.: 750

Varistors 150VAC 10% 20mm 2-pin ThermoFuse

B72220R2151K101
TDK
750: 8,13 kr.
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
B72220R2151K101

Mouser Part No
871-B72220R2151K101

TDK

Varistors 150VAC 10% 20mm 2-pin ThermoFuse

Datasheet

Non-Stocked Lead-Time 10 Weeks

8,13 kr.

7,61 kr.

7,53 kr.

7,12 kr.

Min.: 750
Mult.: 750

Varistors 250VAC 10% 20mm 2-pin ThermoFuse

B72220R2251K101
TDK
1: 13,65 kr.
Lead-Time 10 Weeks

Mfr. Part No.
B72220R2251K101

Mouser Part No
871-B72220R2251K101

TDK

Varistors 250VAC 10% 20mm 2-pin ThermoFuse

Datasheet

Lead-Time 10 Weeks

13,65 kr.

10,15 kr.

9,18 kr.

8,06 kr.

View

Min.: 1
Mult.: 1