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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: ₹265.56
500In Stock

Mfr. Part No.
B72220T2381K105

Mouser Part No
871-B72220T2381K105

TDK

Varistors 385VAC 10% 20mm AdvanceD Thermofused

Datasheet

500In Stock

₹265.56

₹196.61

₹178.91

₹160.27

View

Min.: 1
Mult.: 1

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

B72230M0511M401
TDK
1: ₹1,319.43
58In Stock

Mfr. Part No.
B72230M0511M401

Mouser Part No
871-B72230M0511M401

TDK

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

Datasheet

58In Stock

₹1,319.43

₹1,000.75

₹890.80

₹751.03

View

Min.: 1
Mult.: 1

Varistors 130VAC 10% 20mm 3-pin ThermoFuse

B72220W2131K101
TDK
1: ₹204.06
590In Stock

Mfr. Part No.
B72220W2131K101

Mouser Part No
871-B72220W2131K101

TDK

Varistors 130VAC 10% 20mm 3-pin ThermoFuse

Datasheet

590In Stock

₹204.06

₹150.95

₹137.91

₹120.20

View

Min.: 1
Mult.: 1

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

B72230M0551M401
TDK
1: ₹1,151.70
346In Stock

Mfr. Part No.
B72230M0551M401

Mouser Part No
871-B72230M0551M401

TDK

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

Datasheet

346In Stock

₹1,151.70

₹881.48

₹838.62

₹805.08

View

Min.: 1
Mult.: 1

Varistors 510VAC 10% 20mm AdvanceD Thermofused

B72220T2511K105
TDK
1: ₹367.13
1,534In Stock

Mfr. Part No.
B72220T2511K105

Mouser Part No
871-B72220T2511K105

TDK

Varistors 510VAC 10% 20mm AdvanceD Thermofused

Datasheet

1,534In Stock

₹367.13

₹232.02

₹212.45

₹180.77

View

Min.: 1
Mult.: 1

Varistors 320VAC 10% 20mm AdvanceD Thermofused

B72220T2321K105
TDK
1: ₹220.84
1,652In Stock

Mfr. Part No.
B72220T2321K105

Mouser Part No
871-B72220T2321K105

TDK

Varistors 320VAC 10% 20mm AdvanceD Thermofused

Datasheet

1,652In Stock

₹220.84

₹164.00

₹149.09

₹134.18

View

Min.: 1
Mult.: 1

Varistors 150V 14mm 2pin ThermoFuse Varistor

B72214R2151K101
TDK
1: ₹177.04
438In Stock

Mfr. Part No.
B72214R2151K101

Mouser Part No
871-B72214R2151K101

TDK

Varistors 150V 14mm 2pin ThermoFuse Varistor

Datasheet

438In Stock

₹177.04

₹130.45

₹118.34

₹105.29

View

Min.: 1
Mult.: 1

Varistors 275V 14mm 2pin ThermoFuse Varistor

B72214R2271K101
TDK
1: ₹152.82
532In Stock

Mfr. Part No.
B72214R2271K101

Mouser Part No
871-B72214R2271K101

TDK

Varistors 275V 14mm 2pin ThermoFuse Varistor

Datasheet

532In Stock

₹152.82

₹111.82

₹101.57

₹89.92

View

Min.: 1
Mult.: 1

Varistors 300V 14mm 2pin ThermoFuse Varistor

B72214R2301K101
TDK
1: ₹152.82
883In Stock

Mfr. Part No.
B72214R2301K101

Mouser Part No
871-B72214R2301K101

TDK

Varistors 300V 14mm 2pin ThermoFuse Varistor

Datasheet

883In Stock

₹152.82

₹111.82

₹101.57

₹89.92

View

Min.: 1
Mult.: 1

Varistors 175VAC 10% 14mm AdvanceD Thermofused

B72214T2171K105
TDK
1: ₹170.52
385In Stock

Mfr. Part No.
B72214T2171K105

Mouser Part No
871-B72214T2171K105

TDK

Varistors 175VAC 10% 14mm AdvanceD Thermofused

Datasheet

385In Stock

₹170.52

₹125.79

₹114.61

₹101.57

View

Min.: 1
Mult.: 1

Varistors 300VAC 10% 20mm 2-pin ThermoFuse

B72220R2301K101
TDK
1: ₹187.29
941In Stock

Mfr. Part No.
B72220R2301K101

Mouser Part No
871-B72220R2301K101

TDK

Varistors 300VAC 10% 20mm 2-pin ThermoFuse

Datasheet

941In Stock

₹187.29

₹138.84

₹125.79

₹114.61

View

Min.: 1
Mult.: 1

Varistors 320VAC 10% 20mm 2-pin ThermoFuse

B72220R2321K101
TDK
1: ₹187.29
689In Stock

Mfr. Part No.
B72220R2321K101

Mouser Part No
871-B72220R2321K101

TDK

Varistors 320VAC 10% 20mm 2-pin ThermoFuse

Datasheet

689In Stock

₹187.29

₹138.84

₹125.79

₹112.75

View

Min.: 1
Mult.: 1

Varistors 275VAC 10% 20mm 3-pin ThermoFuse

B72220W2271K101
TDK
1: ₹195.68
622In Stock

Mfr. Part No.
B72220W2271K101

Mouser Part No
871-B72220W2271K101

TDK

Varistors 275VAC 10% 20mm 3-pin ThermoFuse

Datasheet

622In Stock

₹195.68

₹144.43

₹132.32

₹120.20

View

Min.: 1
Mult.: 1

Varistors 275VAC 10% 20mm 2-pin ThermoFuse

B72220R2271K101
TDK
1: ₹198.47
740Expected 08-10-2026

Mfr. Part No.
B72220R2271K101

Mouser Part No
871-B72220R2271K101

TDK

Varistors 275VAC 10% 20mm 2-pin ThermoFuse

Datasheet

740Expected 08-10-2026

₹198.47

₹147.22

₹133.25

₹119.27

View

Min.: 1
Mult.: 1

Varistors 320V 14mm 2pin ThermoFuse Varistor

B72214R2321K101
TDK
1,000: ₹77.90
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
B72214R2321K101

Mouser Part No
871-B72214R2321K101

TDK

Varistors 320V 14mm 2pin ThermoFuse Varistor

Datasheet

Non-Stocked Lead-Time 10 Weeks

₹77.90

₹76.41

₹71.47

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

Varistors 150VAC 10% 14mm AdvanceD Thermofused

B72214T2151K105
TDK
1,960: ₹102.50
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
B72214T2151K105

Mouser Part No
871-B72214T2151K105

TDK

Varistors 150VAC 10% 14mm AdvanceD Thermofused

Datasheet

Non-Stocked Lead-Time 10 Weeks

₹102.50

₹101.57

Min.: 1,960
Mult.: 1,960

Varistors 175VAC 10% 14mm AdvanceD Thermofused

B72214T2171K106
TDK
1,960: ₹84.70
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
B72214T2171K106

Mouser Part No
871-B72214T2171K106

TDK

Varistors 175VAC 10% 14mm AdvanceD Thermofused

Datasheet

Non-Stocked Lead-Time 10 Weeks

₹84.70

₹83.30

Min.: 1,960
Mult.: 1,960

Varistors 300VAC 10% 14mm AdvanceD Thermofused

B72214T2301K106
TDK
1: ₹262.77
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
B72214T2301K106

Mouser Part No
871-B72214T2301K106

TDK

Varistors 300VAC 10% 14mm AdvanceD Thermofused

Datasheet

Non-Stocked Lead-Time 10 Weeks

₹262.77

₹165.86

₹147.22

₹125.79

View

Min.: 1
Mult.: 1

Varistors 300VAC 10% 14mm AdvanceD Thermofused

B72214T2301K108
TDK
1,680: ₹84.70
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
B72214T2301K108

Mouser Part No
871-B72214T2301K108

TDK

Varistors 300VAC 10% 14mm AdvanceD Thermofused

Datasheet

Non-Stocked Lead-Time 10 Weeks

₹84.70

₹83.30

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

Varistors 320VAC 10% 14mm AdvanceD Thermofused

B72214T2321K106
TDK
1,960: ₹65.60
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
B72214T2321K106

Mouser Part No
871-B72214T2321K106

TDK

Varistors 320VAC 10% 14mm AdvanceD Thermofused

Datasheet

Non-Stocked Lead-Time 10 Weeks

₹65.60

₹64.11

Min.: 1,960
Mult.: 1,960

Varistors 320VAC 10% 14mm 3-pin ThermoFuse

B72214W2321K101
TDK
1: ₹169.59
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

₹169.59

₹123.93

₹112.75

₹100.63

View

Min.: 1
Mult.: 1

Varistors 380VAC 10% 14mm 3-pin ThermoFuse

B72214W2381K101
TDK
1: ₹159.34
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

₹159.34

₹117.41

₹106.23

₹95.04

View

Min.: 1
Mult.: 1

Varistors 130VAC 10% 20mm 2-pin ThermoFuse

B72220R2131K101
TDK
750: ₹113.68
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

₹113.68

₹110.88

₹109.02

Min.: 750
Mult.: 750

Varistors 150VAC 10% 20mm 2-pin ThermoFuse

B72220R2151K101
TDK
750: ₹110.88
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

₹110.88

₹109.02

₹103.43

Min.: 750
Mult.: 750

Varistors 250VAC 10% 20mm 2-pin ThermoFuse

B72220R2251K101
TDK
1: ₹198.47
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

₹198.47

₹147.22

₹133.25

₹119.27

View

Min.: 1
Mult.: 1