Varistors – Mouser United Kingdom

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SIOV Metal Oxide Varistors

TDK SIOV Metal Oxide Varistors feature a wide operating voltage range of 11 to 1100V_RMS.These devices offer high surge current ratings up to 8kA and no derating up to 105°C ambient temperature. The SIOV leaded varistors meet new UL 1449 3rd Edition requirements. TDK SIOV Metal Oxide Varistors applications include lighting, radio and TV equipment, and household appliances.

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Part #

Varistors 320VAC 10% 14mm AdvanceD

B72214S2321K151
TDK
1: £0.443
1,674In Stock

Mfr. Part No.
B72214S2321K151

Mouser Part No
871-B72214S2321K151

TDK

Varistors 320VAC 10% 14mm AdvanceD

Learn More

Datasheet

1,674In Stock

Cut Tape

£0.443

£0.281

£0.244

£0.227

Reel

£0.19

View

Min.: 1
Mult.: 1

: 4,000

Disc Varistor, AdvanceD 14mm

MOVs

PCB Mount

Radial

320 VAC

420 VDC

510 V

840 V

15.5 mm

6 kA

136 J

280 pF

- 40 C

+ 105 C

Reel, Cut Tape

Varistors 420VAC 10% 14mm AdvanceD

B72214S2421K101
TDK
1: £0.661
79In Stock
3,000Expected 08/10/2026

Mfr. Part No.
B72214S2421K101

Mouser Part No
871-B72214S2421K101

TDK

Varistors 420VAC 10% 14mm AdvanceD

Learn More

Datasheet

79In Stock

3,000Expected 08/10/2026

£0.661

£0.423

£0.371

£0.346

View

Min.: 1
Mult.: 1

Disc Varistor, AdvanceD 14mm

MOVs

PCB Mount

Radial

420 VAC

560 VDC

680 V

1.12 kV

15.5 mm

5 kA

136 J

220 pF

- 40 C

+ 105 C

Bulk

Varistors 510VAC 10% 14mm AdvanceD

B72214S2511K101
TDK
1: £0.96
12In Stock
3,000Expected 14/09/2026

Mfr. Part No.
B72214S2511K101

Mouser Part No
871-B72214S2511K101

TDK

Varistors 510VAC 10% 14mm AdvanceD

Learn More

Datasheet

12In Stock

3,000Expected 14/09/2026

£0.96

£0.622

£0.457

£0.427

View

Min.: 1
Mult.: 1

Disc Varistor, AdvanceD 14mm

MOVs

PCB Mount

Radial

510 VAC

670 VDC

820 V

1.355 kV

15.5 mm

5 kA

165 J

180 pF

- 40 C

+ 105 C

Bulk

Varistors 30VAC 10% 14mm StandarD

B72214S0300K101
TDK
1: £0.353
589In Stock
18,000Expected 27/10/2026

Mfr. Part No.
B72214S0300K101

Mouser Part No
871-B72214S300K101

TDK

Varistors 30VAC 10% 14mm StandarD

Learn More

Datasheet

589In Stock

18,000Expected 27/10/2026

£0.353

£0.22

£0.191

£0.177

View

Min.: 1
Mult.: 1

Disc Varistor,StandarD 14mm

MOVs

PCB Mount

Radial

30 VAC

38 VDC

47 V

93 V

14 mm

1 kA

9 J

4.95 nF

- 40 C

+ 105 C

Bulk

Varistors 300VAC 10% 14mm StandarD

B72214S0301K501
TDK
1: £0.39
2,604In Stock

Mfr. Part No.
B72214S0301K501

Mouser Part No
871-B72214S301K501

TDK

Varistors 300VAC 10% 14mm StandarD

Learn More

Datasheet

2,604In Stock

£0.39

£0.244

£0.235

£0.224

View

Min.: 1
Mult.: 1

Disc Varistor,StandarD 14mm

MOVs

PCB Mount

Radial

300 VAC

385 VDC

470 V

775 V

14 mm

4.5 kA

76 J

400 pF

- 40 C

+ 105 C

Bulk

Varistors 320VAC 10% 14mm StandarD

B72214S0321K501
TDK
1: £0.39
699In Stock

Mfr. Part No.
B72214S0321K501

Mouser Part No
871-B72214S321K501

TDK

Varistors 320VAC 10% 14mm StandarD

Learn More

Datasheet

699In Stock

£0.39

£0.244

£0.211

£0.18

View

Min.: 1
Mult.: 1

Disc Varistor,StandarD 14mm

MOVs

PCB Mount

Radial

320 VAC

420 VDC

510 V

840 V

14 mm

4.5 kA

84 J

370 pF

- 40 C

+ 105 C

Bulk

Varistors 35VAC 10% 14mm StandarD

B72214S0350K151
TDK
1: £0.45
1,975In Stock

Mfr. Part No.
B72214S0350K151

Mouser Part No
871-B72214S350K151

TDK

Varistors 35VAC 10% 14mm StandarD

Learn More

Datasheet

1,975In Stock

Cut Tape

£0.45

£0.284

£0.247

£0.23

Reel

£0.196

View

Min.: 1
Mult.: 1

: 3,000

Disc Varistor,StandarD 14mm

MOVs

PCB Mount

Radial

35 VAC

45 VDC

56 V

110 V

14 mm

1 kA

10 J

4.2 nF

- 40 C

+ 105 C

Reel, Cut Tape

Varistors 385VAC 10% 14mm StandarD

B72214S0381K101
TDK
1: £0.338
6,400In Stock

Mfr. Part No.
B72214S0381K101

Mouser Part No
871-B72214S381K101

TDK

Varistors 385VAC 10% 14mm StandarD

Learn More

Datasheet

6,400In Stock

£0.338

£0.21

£0.182

£0.169

View

Min.: 1
Mult.: 1

Disc Varistor,StandarD 14mm

MOVs

PCB Mount

Radial

385 VAC

505 VDC

620 V

1.025 kV

14 mm

4.5 kA

80 J

240 pF

- 40 C

+ 105 C

Bulk

Varistors 40VAC 10% 14mm StandarD

B72214S0400K551
TDK
1: £0.45
1,450In Stock

Mfr. Part No.
B72214S0400K551

Mouser Part No
871-B72214S400K551

TDK

Varistors 40VAC 10% 14mm StandarD

Learn More

Datasheet

1,450In Stock

Cut Tape

£0.45

£0.284

£0.247

£0.23

View

Reel

£0.188

Min.: 1
Mult.: 1

: 3,000

Disc Varistor,StandarD 14mm

MOVs

PCB Mount

Radial

40 VAC

56 VDC

68 V

135 V

14 mm

1 kA

13 J

3.55 nF

- 40 C

+ 105 C

Reel, Cut Tape

Varistors 420VAC 10% 14mm StandarD

B72214S0421K101
TDK
1: £0.533
1,240In Stock
6,000Expected 21/09/2026

Mfr. Part No.
B72214S0421K101

Mouser Part No
871-B72214S421K101

TDK

Varistors 420VAC 10% 14mm StandarD

Learn More

Datasheet

1,240In Stock

6,000Expected 21/09/2026

£0.533

£0.338

£0.296

£0.276

View

Min.: 1
Mult.: 1

Disc Varistor,StandarD 14mm

MOVs

PCB Mount

Radial

420 VAC

560 VDC

680 V

1.12 kV

14 mm

4.5 kA

90 J

220 pF

- 40 C

+ 105 C

Bulk

Varistors 420VAC 10% 14mm StandarD

B72214S0421K331
TDK
1: £0.578
1,278In Stock

Mfr. Part No.
B72214S0421K331

Mouser Part No
871-B72214S421K331

TDK

Varistors 420VAC 10% 14mm StandarD

Learn More

Datasheet

1,278In Stock

Cut Tape

£0.578

£0.377

£0.322

Reel

£0.319

£0.314

Min.: 1
Mult.: 1

: 3,000

Disc Varistor,StandarD 14mm

MOVs

PCB Mount

Radial

420 VAC

560 VDC

680 V

1.12 kV

14 mm

4.5 kA

90 J

290 pF

- 40 C

+ 105 C

Reel, Cut Tape

Varistors 60VAC 10% 14mm StandarD

B72214S0600K101
TDK
1: £0.353
4,716In Stock

Mfr. Part No.
B72214S0600K101

Mouser Part No
871-B72214S600K101

TDK

Varistors 60VAC 10% 14mm StandarD

Learn More

Datasheet

4,716In Stock

£0.353

£0.22

£0.194

£0.19

View

Min.: 1
Mult.: 1

Disc Varistor,StandarD 14mm

MOVs

PCB Mount

Radial

60 VAC

85 VDC

100 V

165 V

14 mm

4.5 kA

17 J

1.65 nF

- 40 C

+ 105 C

Bulk

Varistors 95VAC 10% 14mm StandarD

B72214S0950K101
TDK
1: £0.39
464In Stock
3,000Expected 14/09/2026

Mfr. Part No.
B72214S0950K101

Mouser Part No
871-B72214S950K101

TDK

Varistors 95VAC 10% 14mm StandarD

Learn More

Datasheet

464In Stock

3,000Expected 14/09/2026

£0.39

£0.245

£0.213

£0.197

View

Min.: 1
Mult.: 1

Disc Varistor,StandarD 14mm

MOVs

PCB Mount

Radial

95 VAC

125 VDC

150 V

250 V

14 mm

4.5 kA

25 J

870 pF

- 40 C

+ 105 C

Bulk

Varistors 275VAC 10% 14mm 125 DegC AdvanceD

B72214U2271K501
TDK
1: £0.421
1,635In Stock
3,000Expected 19/10/2026

Mfr. Part No.
B72214U2271K501

Mouser Part No
871-B72214U2271K501

TDK

Varistors 275VAC 10% 14mm 125 DegC AdvanceD

Learn More

Datasheet

1,635In Stock

3,000Expected 19/10/2026

£0.421

£0.267

£0.233

£0.217

View

Min.: 1
Mult.: 1

Disc Varistor, AdvanceD 125C, 85C/85%RH 14mm

MOVs

PCB Mount

Radial

275 VAC

350 VDC

430 V

710 V

17.5 mm

6 kA

110 J

440 pF

- 40 C

+ 125 C

Bulk

Varistors 320VAC 10% 14mm 125 DegC AdvanceD

B72214U2321K501
TDK
1: £0.421
1,298In Stock

Mfr. Part No.
B72214U2321K501

Mouser Part No
871-B72214U2321K501

TDK

Varistors 320VAC 10% 14mm 125 DegC AdvanceD

Learn More

Datasheet

1,298In Stock

£0.421

£0.267

£0.233

£0.223

View

Min.: 1
Mult.: 1

Disc Varistor, AdvanceD 125C, 85C/85%RH 14mm

MOVs

PCB Mount

Radial

320 VAC

420 VDC

510 V

840 V

17.5 mm

6 kA

136 J

370 pF

- 40 C

+ 125 C

Bulk

Varistors 385VAC 10% 20mm SuperioR MP

B72220P3381K101
TDK
1: £0.969
1,358In Stock

Mfr. Part No.
B72220P3381K101

Mouser Part No
871-B72220P3381K101

TDK

Varistors 385VAC 10% 20mm SuperioR MP

Learn More

Datasheet

1,358In Stock

£0.969

£0.705

£0.615

£0.565

View

Min.: 1
Mult.: 1

Disc Varistor, Multi-Pulse SuperioR 20mm

MOVs

PCB Mount

Radial

385 VAC

505 VDC

620 V

1.025 kV

22.5 mm

12 kA

335 J

800 pF

- 40 C

+ 105 C

Bulk

Varistors 460VAC 10% 20mm SuperioR MP

B72220P3461K101
TDK
1: £1.26
556In Stock

Mfr. Part No.
B72220P3461K101

Mouser Part No
871-B72220P3461K101

TDK

Varistors 460VAC 10% 20mm SuperioR MP

Learn More

Datasheet

556In Stock

£1.26

£0.934

£0.841

£0.76

View

Min.: 1
Mult.: 1

Disc Varistor, Multi-Pulse SuperioR 20mm

MOVs

PCB Mount

Radial

460 VAC

615 VDC

750 V

1.24 kV

22.5 mm

12 kA

445 J

660 pF

- 40 C

+ 105 C

Bulk

Varistors 385VAC 10% 20mm EnergetiQ

B72220Q0381K101
TDK
1: £1.20
1,359In Stock

Mfr. Part No.
B72220Q0381K101

Mouser Part No
871-B72220Q0381K101

TDK

Varistors 385VAC 10% 20mm EnergetiQ

Learn More

Datasheet

1,359In Stock

£1.20

£0.871

£0.796

£0.701

View

Min.: 1
Mult.: 1

Disc Varistor, EnergetiQ 20mm

MOVs

PCB Mount

Radial

385 VAC

505 VDC

620 V

1.025 kV

22.5 mm

15 kA

315 J

780 pF

- 40 C

+ 105 C

Bulk

Varistors 175VAC 10% 20mm EnergetiQ

B72220Q0171K101
TDK
1: £1.26
618In Stock

Mfr. Part No.
B72220Q0171K101

Mouser Part No
871-B72220Q171K101

TDK

Varistors 175VAC 10% 20mm EnergetiQ

Learn More

Datasheet

618In Stock

£1.26

£0.925

£0.841

£0.821

£0.803

Min.: 1
Mult.: 1

Disc Varistor, EnergetiQ 20mm

MOVs

PCB Mount

Radial

175 VAC

225 VDC

270 V

455 V

22.5 mm

15 kA

135 J

1.5 nF

- 40 C

+ 105 C

Bulk

Varistors 230VAC 10% 20mm EnergetiQ

B72220Q0231K101
TDK
1: £1.20
1,192In Stock

Mfr. Part No.
B72220Q0231K101

Mouser Part No
871-B72220Q231K101

TDK

Varistors 230VAC 10% 20mm EnergetiQ

Learn More

Datasheet

1,192In Stock

£1.20

£0.871

£0.796

£0.701

View

Min.: 1
Mult.: 1

Disc Varistor, EnergetiQ 20mm

MOVs

PCB Mount

Radial

230 VAC

300 VDC

360 V

595 V

20 mm

15 kA

180 J

1.35 nF

- 40 C

+ 105 C

Bulk

Varistors 250VAC 10% 20mm EnergetiQ

B72220Q0251K101
TDK
1: £1.20
1,508In Stock

Mfr. Part No.
B72220Q0251K101

Mouser Part No
871-B72220Q251K101

TDK

Varistors 250VAC 10% 20mm EnergetiQ

Learn More

Datasheet

1,508In Stock

£1.20

£0.871

£0.829

£0.812

View

Min.: 1
Mult.: 1

Disc Varistor, EnergetiQ 20mm

MOVs

PCB Mount

Radial

250 VAC

320 VDC

390 V

650 V

20 mm

8 kA

140 J

940 pF

- 40 C

+ 105 C

Bulk

Varistors 300VAC 10% 20mm EnergetiQ

B72220Q0301K101
TDK
1: £1.20
30In Stock
1,500Expected 04/09/2026

Mfr. Part No.
B72220Q0301K101

Mouser Part No
871-B72220Q301K101

TDK

Varistors 300VAC 10% 20mm EnergetiQ

Learn More

Datasheet

30In Stock

1,500Expected 04/09/2026

£1.20

£0.871

£0.796

£0.701

View

Min.: 1
Mult.: 1

Disc Varistor, EnergetiQ 20mm

MOVs

PCB Mount

Radial

300 VAC

385 VDC

470 V

775 V

20 mm

15 kA

235 J

850 pF

- 40 C

+ 105 C

Bulk

Varistors 25VAC 10% 20mm StandarD

B72220S0250K151
TDK
1: £0.826
256In Stock
2,000Expected 06/10/2026

Mfr. Part No.
B72220S0250K151

Mouser Part No
871-B72220S0250K151

TDK

Varistors 25VAC 10% 20mm StandarD

Learn More

Datasheet

256In Stock

2,000Expected 06/10/2026

Cut Tape

£0.826

£0.539

£0.475

£0.445

Reel

£0.388

View

Min.: 1
Mult.: 1

: 2,000

Disc Varistor, StandarD 20mm

MOVs

PCB Mount

Radial

25 VAC

31 VDC

39 V

77 V

20 mm

2 kA

22 J

11.1 nF

- 40 C

+ 105 C

Reel, Cut Tape

Varistors 275VAC 10% 20mm StandarD

B72220S0271K151
TDK
1: £0.713
1,825In Stock

Mfr. Part No.
B72220S0271K151

Mouser Part No
871-B72220S0271K151

TDK

Varistors 275VAC 10% 20mm StandarD

Learn More

Datasheet

1,825In Stock

Cut Tape

£0.713

£0.527

Reel

£0.527

£0.521

Min.: 1
Mult.: 1

: 4,000

Disc Varistor, StandarD 20mm

MOVs

PCB Mount

Radial

275 VAC

350 VDC

430 V

710 V

20 mm

8 kA

151 J

850 pF

- 40 C

+ 105 C

Reel, Cut Tape

Varistors 300VAC 10% 20mm StandarD

B72220S0301K501
TDK
1: £0.661
1,264In Stock

Mfr. Part No.
B72220S0301K501

Mouser Part No
871-B72220S0301K501

TDK

Varistors 300VAC 10% 20mm StandarD

Learn More

Datasheet

1,264In Stock

Cut Tape

£0.661

£0.427

£0.375

£0.35

Reel

£0.306

View

Min.: 1
Mult.: 1

: 1,500

Disc Varistor, StandarD 20mm

MOVs

PCB Mount

Radial

300 VAC

385 VDC

470 V

775 V

20 mm

8 kA

173 J

780 pF

- 40 C

+ 105 C

Reel, Cut Tape

SIOV Metal Oxide Varistors

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Automotive 42 V
B72220P
B72220Q
B722xxS1
B722xxS2
B722xxS3/4
B722xxU
Disc Varistor, AdvanceD 10mm
Disc Varistor, AdvanceD 125C, 85C/85%RH 10mm
Disc Varistor, AdvanceD 125C, 85C/85%RH 14mm
Disc Varistor, AdvanceD 125C, 85C/85%RH 20mm
Disc Varistor, AdvanceD 125C, 85C/85%RH 5mm
Disc Varistor, AdvanceD 125C, 85C/85%RH 7mm
Disc Varistor, AdvanceD 14mm
Disc Varistor, AdvanceD 20mm
Disc Varistor, AdvanceD 5mm
Disc Varistor, AdvanceD 7mm
Disc Varistor, Auto-Grade 10mm
Disc Varistor, Auto-Grade 14mm
Disc Varistor, Auto-Grade 20mm

11 VAC
14 VAC
17 VAC
20 VAC
25 VAC
30 VAC
35 VAC
40 VAC
48 VAC
50 VAC
60 VAC
75 VAC
95 VAC
125 VAC
130 VAC
140 VAC
150 VAC
175 VAC
210 VAC
230 VAC

14 VDC
16 VDC
18 VDC
20 VDC
22 VDC
26 VDC
28 VDC
31 VDC
34 VDC
38 VDC
45 VDC
50 VDC
56 VDC
65 VDC
85 VDC
100 VDC
125 VDC
150 VDC
170 VDC
180 VDC

18 V
22 V
27 V
33 V
39 V
47 V
56 V
68 V
82 V
100 V
120 V
150 V
180 V
205 V
220 V
240 V
270 V
330 V
360 V
390 V

36 V
43 V
53 V
65 V
77 V
93 V
110 V
135 V
165 V
200 V
250 V
300 V
340 V
360 V
395 V
455 V
545 V
595 V
650 V
710 V

0.8 mm
5 mm
7 mm
9 mm
10 mm
11 mm
12 mm
12.5 mm
14 mm
15.5 mm
16 mm
16.5 mm
17 mm
17.5 mm
20 mm
21.5 mm
22.5 mm
23 mm
23.5 mm
25 mm

2.5 A
25 A
100 A
250 A
400 A
500 A
800 A
1 kA
1.2 kA
1.75 kA
2 kA
2.5 kA
3.5 kA
4.5 kA
5 kA
6 kA
6.5 kA
7 kA
8 kA
10 kA

300 mJ
400 mJ
500 mJ
600 mJ
700 mJ
0.8 J
800 mJ
0.9 J
900 mJ
1.1 J
1.3 J
1.6 J
1.7 J
1.8 J
2 J
2.2 J
2.5 J
3 J
3.1 J
3.2 J

30 pF
32 pF
35 pF
37 pF
40 pF
45 pF
50 pF
55 pF
60 pF
65 pF
70 pF
72 pF
75 pF
85 pF
90 pF
95 pF
100 pF
105 pF
110 pF
115 pF