Varistors – Mouser Australia

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MT ThermoFuse™ Varistors

TDK MT ThermoFuse™ Varistors are equipped with monitor outputs and integrated thermal protective components for overvoltage protection. These specially developed quadratic disk varistors are connected in series with a patented thermal protective component design. In the case of a persistent overvoltage and heating of the TDK varistor, the fuse is activated and separates the varistor from the circuit with a high level of reliability. This prevents potential damage to the PCB or the components installed in the varistor’s vicinity.

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Part #

Varistors 320VAC 10% 25mm SuperioR

B72225S4321K101
EPCOS / TDK
1: $4.43
3,636In Stock

Mfr. Part No.
B72225S4321K101

Mouser Part No
871-B72225S4321K101

EPCOS / TDK

Varistors 320VAC 10% 25mm SuperioR

Learn More

Datasheet

3,636In Stock

$4.43

$3.34

$3.06

$3.04

View

Min.: 1
Mult.: 1

Disc Varistor, SuperioR 25mm

MOVs

PCB Mount

Radial

320 VAC

420 VDC

510 V

840 V

27.5 mm

20 kA

445 J

1600 pF

- 40 C

+ 105 C

Bulk

Varistors 275VAC 10% 25mm SuperioR

B72225S4271K101
EPCOS / TDK
1: $5.25
1,214In Stock

Mfr. Part No.
B72225S4271K101

Mouser Part No
871-B72225S4271K101

EPCOS / TDK

Varistors 275VAC 10% 25mm SuperioR

Learn More

Datasheet

1,214In Stock

$5.25

$3.95

$3.63

$3.01

View

Min.: 1
Mult.: 1

Disc Varistor, SuperioR 25mm

MOVs

PCB Mount

Radial

275 VAC

350 VDC

430 V

710 V

25 mm

20 kA

375 J

1320 pF

- 40 C

+ 105 C

Bulk

Varistors 420VAC 10% 25mm SuperioR

B72225S4421K101
EPCOS / TDK
1: $6.02
1,068In Stock

Mfr. Part No.
B72225S4421K101

Mouser Part No
871-B72225S4421K101

EPCOS / TDK

Varistors 420VAC 10% 25mm SuperioR

Learn More

Datasheet

1,068In Stock

$6.02

$4.18

$3.76

$3.54

View

Min.: 1
Mult.: 1

Disc Varistor, SuperioR 25mm

MOVs

PCB Mount

Radial

420 VAC

560 VDC

680 V

1.12 kV

27.5 mm

20 kA

700 J

1150 pF

- 40 C

+ 105 C

Bulk

Varistors 510VAC 10% 25mm SuperioR

B72225S4511K101
EPCOS / TDK
1: $6.37
930In Stock

Mfr. Part No.
B72225S4511K101

Mouser Part No
871-B72225S4511K101

EPCOS / TDK

Varistors 510VAC 10% 25mm SuperioR

Datasheet

930In Stock

$6.37

$4.83

$4.45

$3.92

View

Min.: 1
Mult.: 1

Disc Varistor, SuperioR 25mm

MOVs

PCB Mount

Radial

510 VAC

670 VDC

820 V

1.355 kV

27.5 mm

20 kA

750 J

950 pF

- 40 C

+ 105 C

Bulk

Varistors 250VAC 10% 25mm SuperioR

B72225S4251K101
EPCOS / TDK
1: $5.54
724In Stock

Mfr. Part No.
B72225S4251K101

Mouser Part No
871-B72225S4251K101

EPCOS / TDK

Varistors 250VAC 10% 25mm SuperioR

Learn More

Datasheet

724In Stock

$5.54

$4.18

$3.84

$3.33

View

Min.: 1
Mult.: 1

Disc Varistor, SuperioR 25mm

MOVs

PCB Mount

Radial

250 VAC

320 VDC

390 V

650 V

27.5 mm

20 kA

345 J

2100 pF

- 40 C

+ 105 C

Bulk

Varistors 460VAC 10% 25mm SuperioR

B72225S4461K101
EPCOS / TDK
1: $6.02
1,189In Stock

Mfr. Part No.
B72225S4461K101

Mouser Part No
871-B72225S4461K101

EPCOS / TDK

Varistors 460VAC 10% 25mm SuperioR

Datasheet

1,189In Stock

$6.02

$4.18

$3.76

$3.54

View

Min.: 1
Mult.: 1

Disc Varistor, SuperioR 25mm

MOVs

PCB Mount

Radial

460 VAC

615 VDC

750 V

1.24 kV

27.5 mm

20 kA

720 J

1050 pF

- 40 C

+ 105 C

Bulk

Varistors 550VAC 10% 25mm SuperioR

B72225S4551K101
EPCOS / TDK
1: $8.02
874In Stock

Mfr. Part No.
B72225S4551K101

Mouser Part No
871-B72225S4551K101

EPCOS / TDK

Varistors 550VAC 10% 25mm SuperioR

Learn More

Datasheet

874In Stock

$8.02

$6.45

$6.10

$5.28

$5.01

Min.: 1
Mult.: 1

Disc Varistor, SuperioR 25mm

MOVs

PCB Mount

Radial

550 VAC

745 VDC

910 V

1.5 kV

27.5 mm

20 kA

780 J

860 pF

- 40 C

+ 105 C

Bulk

Varistors Leaded Disk Varistor 710pF, 680VAC, 895VDC

B72225S4681K101
EPCOS / TDK
1: $8.02
1,140In Stock

Mfr. Part No.
B72225S4681K101

Mouser Part No
871-B72225S4681K101

EPCOS / TDK

Varistors Leaded Disk Varistor 710pF, 680VAC, 895VDC

Datasheet

1,140In Stock

$8.02

$6.45

$6.10

$5.28

$5.01

Min.: 1
Mult.: 1

Disc Varistor, SuperioR 25mm

MOVs

PCB Mount

Radial

680 VAC

895 VDC

1.1 kV

1.815 kV

27.5 mm

20 kA

940 J

710 pF

- 40 C

+ 105 C

Bulk

Varistors 275VAC 10% 20mm 3-pin ThermoFuse

B72220W2271K101
EPCOS / TDK
1: $2.77
239In Stock

Mfr. Part No.
B72220W2271K101

Mouser Part No
871-B72220W2271K101

EPCOS / TDK

Varistors 275VAC 10% 20mm 3-pin ThermoFuse

Learn More

Datasheet

239In Stock

$2.77

$2.05

$1.86

$1.62

View

Min.: 1
Mult.: 1

Thermo-fused Varistor 3-pin, AdvanceD 20mm

MOVs

PCB Mount

Radial

275 VAC

350 VDC

430 V

710 V

9.5 mm

10 kA

215 J

850 pF

- 40 C

+ 85 C

Bulk

Varistors 230VAC 10% 25mm SuperioR

B72225S4231K101
EPCOS / TDK
1: $5.54
375In Stock

Mfr. Part No.
B72225S4231K101

Mouser Part No
871-B72225S4231K101

EPCOS / TDK

Varistors 230VAC 10% 25mm SuperioR

Datasheet

375In Stock

$5.54

$4.18

$3.84

$3.33

View

Min.: 1
Mult.: 1

Disc Varistor, SuperioR 25mm

MOVs

PCB Mount

Radial

230 VAC

300 VDC

360 V

595 V

27.5 mm

20 kA

315 J

2250 pF

- 40 C

+ 105 C

Bulk

Varistors 300VAC 10% 25mm SuperioR

B72225S4301K101
EPCOS / TDK
1: $5.54
410In Stock

Mfr. Part No.
B72225S4301K101

Mouser Part No
871-B72225S4301K101

EPCOS / TDK

Varistors 300VAC 10% 25mm SuperioR

Datasheet

410In Stock

$5.54

$4.18

$3.84

$3.38

View

Min.: 1
Mult.: 1

Disc Varistor, SuperioR 25mm

MOVs

PCB Mount

Radial

300 VAC

385 VDC

470 V

775 V

27.5 mm

20 kA

410 J

1750 pF

- 40 C

+ 105 C

Bulk

Varistors 385VAC 10% 25mm SuperioR

B72225S4381K101
EPCOS / TDK
1: $5.65
95In Stock
1,500Expected 9/03/2026

Mfr. Part No.
B72225S4381K101

Mouser Part No
871-B72225S4381K101

EPCOS / TDK

Varistors 385VAC 10% 25mm SuperioR

Learn More

Datasheet

95In Stock

1,500Expected 9/03/2026

$5.65

$4.34

$3.38

$3.23

View

Min.: 1
Mult.: 1

Disc Varistor, SuperioR 25mm

MOVs

PCB Mount

Radial

385 VAC

505 VDC

620 V

1.025 kV

27.5 mm

20 kA

600 J

1250 pF

- 40 C

+ 105 C

Bulk

Varistors 580VAC 10% 25mm SuperioR

B72225S4581K101
EPCOS / TDK
1: $6.37
526In Stock

Mfr. Part No.
B72225S4581K101

Mouser Part No
871-B72225S4581K101

EPCOS / TDK

Varistors 580VAC 10% 25mm SuperioR

Learn More

Datasheet

526In Stock

$6.37

$4.45

$4.00

$3.76

View

Min.: 1
Mult.: 1

Disc Varistor, SuperioR 25mm

MOVs

PCB Mount

Radial

580 VAC

780 VDC

940 V

1.58 kV

27.5 mm

20 kA

800 J

830 pF

- 40 C

+ 105 C

Bulk

Varistors 440VAC 10% 25mm SuperioR

B72225S4441K101
EPCOS / TDK
1: $6.02
195In Stock

Mfr. Part No.
B72225S4441K101

Mouser Part No
871-B72225S4441K101

EPCOS / TDK

Varistors 440VAC 10% 25mm SuperioR

Datasheet

195In Stock

$6.02

$4.18

$3.76

$3.54

View

Min.: 1
Mult.: 1

Disc Varistor, SuperioR 25mm

MOVs

PCB Mount

Radial

440 VAC

585 VDC

715 V

1.18 kV

27.5 mm

20 kA

710 J

1100 pF

- 40 C

+ 105 C

Bulk

Varistors 130VAC 10% 20mm 3-pin ThermoFuse

B72220W2131K101
EPCOS / TDK
1: $2.77
600Expected 23/02/2026

Mfr. Part No.
B72220W2131K101

Mouser Part No
871-B72220W2131K101

EPCOS / TDK

Varistors 130VAC 10% 20mm 3-pin ThermoFuse

Learn More

Datasheet

600Expected 23/02/2026

$2.77

$2.05

$1.86

$1.62

View

Min.: 1
Mult.: 1

Thermo-fused Varistor 3-pin, AdvanceD 20mm

MOVs

PCB Mount

Radial

130 VAC

170 VDC

205 V

340 V

23 mm

10 kA

100 J

1850 pF

- 40 C

+ 85 C

Bulk

Varistors 20mm,130Vac ,thermo-fused type,3pin

B72220W2131K501
EPCOS / TDK
750: $1.89
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
B72220W2131K501

Mouser Part No
871-B72220W2131K501

EPCOS / TDK

Varistors 20mm,130Vac ,thermo-fused type,3pin

Datasheet

Non-Stocked Lead-Time 10 Weeks

$1.89

$1.86

Min.: 750
Mult.: 150

Thermo-fused Varistor 3-pin, AdvanceD 20mm

Bulk

Varistors 20mm,140Vac ,thermo-fused type,3pin

B72220W2141K501
EPCOS / TDK
750: $1.89
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
B72220W2141K501

Mouser Part No
871-B72220W2141K501

EPCOS / TDK

Varistors 20mm,140Vac ,thermo-fused type,3pin

Datasheet

Non-Stocked Lead-Time 10 Weeks

$1.89

$1.86

Min.: 750
Mult.: 150

Thermo-fused Varistor 3-pin, AdvanceD 20mm

Bulk

Varistors 20mm,150Vac ,thermo-fused type,3pin

B72220W2151K501
EPCOS / TDK
750: $1.89
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
B72220W2151K501

Mouser Part No
871-B72220W2151K501

EPCOS / TDK

Varistors 20mm,150Vac ,thermo-fused type,3pin

Datasheet

Non-Stocked Lead-Time 10 Weeks

$1.89

$1.86

Min.: 750
Mult.: 150

Thermo-fused Varistor 3-pin, AdvanceD 20mm

Bulk

Varistors 20mm,175Vac ,thermo-fused type,3pin

B72220W2171K501
EPCOS / TDK
750: $1.89
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
B72220W2171K501

Mouser Part No
871-B72220W2171K501

EPCOS / TDK

Varistors 20mm,175Vac ,thermo-fused type,3pin

Datasheet

Non-Stocked Lead-Time 10 Weeks

$1.89

$1.86

Min.: 750
Mult.: 150

Thermo-fused Varistor 3-pin, AdvanceD 20mm

Bulk

Varistors 20mm,210Vac ,thermo-fused type,3pin

B72220W2211K501
EPCOS / TDK
750: $1.89
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
B72220W2211K501

Mouser Part No
871-B72220W2211K501

EPCOS / TDK

Varistors 20mm,210Vac ,thermo-fused type,3pin

Datasheet

Non-Stocked Lead-Time 10 Weeks

$1.89

$1.86

Min.: 750
Mult.: 150

Thermo-fused Varistor 3-pin, AdvanceD 20mm

Bulk

Varistors 20mm,250Vac ,thermo-fused type,3pin

B72220W2251K501
EPCOS / TDK
750: $1.89
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
B72220W2251K501

Mouser Part No
871-B72220W2251K501

EPCOS / TDK

Varistors 20mm,250Vac ,thermo-fused type,3pin

Datasheet

Non-Stocked Lead-Time 10 Weeks

$1.89

$1.86

Min.: 750
Mult.: 150

Thermo-fused Varistor 3-pin, AdvanceD 20mm

Bulk

Varistors 20mm,275Vac ,thermo-fused type,3pin

B72220W2271K501
EPCOS / TDK
750: $1.89
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
B72220W2271K501

Mouser Part No
871-B72220W2271K501

EPCOS / TDK

Varistors 20mm,275Vac ,thermo-fused type,3pin

Datasheet

Non-Stocked Lead-Time 10 Weeks

$1.89

$1.86

Min.: 750
Mult.: 150

Thermo-fused Varistor 3-pin, AdvanceD 20mm

Bulk

Varistors 20mm,300Vac ,thermo-fused type,3pin

B72220W2301K501
EPCOS / TDK
750: $1.89
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
B72220W2301K501

Mouser Part No
871-B72220W2301K501

EPCOS / TDK

Varistors 20mm,300Vac ,thermo-fused type,3pin

Datasheet

Non-Stocked Lead-Time 10 Weeks

$1.89

$1.86

Min.: 750
Mult.: 150

Thermo-fused Varistor 3-pin, AdvanceD 20mm

Bulk

Varistors 320VAC 10% 20mm 3-pin ThermoFuse

B72220W2321K101
EPCOS / TDK
1: $2.77
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
B72220W2321K101

Mouser Part No
871-B72220W2321K101

EPCOS / TDK

Varistors 320VAC 10% 20mm 3-pin ThermoFuse

Learn More

Datasheet

Non-Stocked Lead-Time 10 Weeks

$2.77

$2.05

$1.86

$1.62

View

Min.: 1
Mult.: 1

Thermo-fused Varistor 3-pin, AdvanceD 20mm

MOVs

PCB Mount

Radial

320 VAC

420 VDC

510 V

840 V

23 mm

10 kA

273 J

720 pF

- 40 C

+ 85 C

Bulk

Varistors 20mm,320Vac ,thermo-fused type,3pin

B72220W2321K501
EPCOS / TDK
750: $1.89
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
B72220W2321K501

Mouser Part No
871-B72220W2321K501

EPCOS / TDK

Varistors 20mm,320Vac ,thermo-fused type,3pin

Datasheet

Non-Stocked Lead-Time 10 Weeks

$1.89

$1.86

Min.: 750
Mult.: 150

Thermo-fused Varistor 3-pin, AdvanceD 20mm

Bulk

MT ThermoFuse™ Varistors

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