SIOV Metal Oxide Varistors

TDK SIOV Metal Oxide Varistors feature a wide operating voltage range of 11 to 1100VRMS. 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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Description Datasheet Availability Pricing (IDR) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Series
Product
Mounting Style
Termination Style
Package/Case
Voltage Rating AC
Voltage Rating DC
Varistor Voltage
Clamping Voltage
Diameter
Peak Surge Current
Surge Energy Rating
Capacitance
Minimum Operating Temperature
Maximum Operating Temperature
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Packaging
TDK Varistors 250VAC 10% 14mm AdvanceD
Datasheet
267In Stock
6.000Expected 24/09/2026
Min.: 1
Mult.: 1

Disc Varistor, AdvanceD 14mm MOVs PCB Mount Radial 250 VAC 320 VDC 390 V 650 V 15.5 mm 6 kA 100 J 350 pF - 40 C + 105 C Bulk
TDK Varistors 275VAC 10% 14mm AdvanceD
Datasheet
5.054In Stock
15.000Expected 21/09/2026
Min.: 1
Mult.: 1

Disc Varistor, AdvanceD 14mm MOVs PCB Mount Radial 275 VAC 350 VDC 430 V 710 V 15.5 mm 6 kA 110 J 440 pF - 40 C + 105 C Bulk
TDK Varistors 300VAC 10% 14mm AdvanceD
Datasheet
3.128In Stock
12.000Expected 24/08/2026
Min.: 1
Mult.: 1

Disc Varistor, AdvanceD 14mm MOVs PCB Mount Radial 300 VAC 385 VDC 470 V 775 V 15.5 mm 6 kA 125 J 400 pF - 40 C + 105 C Bulk
TDK Varistors 320VAC 10% 14mm AdvanceD
Datasheet
4.660In Stock
12.000Expected 08/10/2026
Min.: 1
Mult.: 1

Disc Varistor, AdvanceD 14mm MOVs PCB Mount Radial 320 VAC 420 VDC 510 V 840 V 10 mm 6 kA 136 J 280 pF - 40 C + 105 C Bulk

TDK Varistors 320VAC 10% 14mm AdvanceD
Datasheet
1.674In Stock
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
TDK Varistors 420VAC 10% 14mm AdvanceD
Datasheet
79In Stock
3.000Expected 08/10/2026
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
TDK Varistors 510VAC 10% 14mm AdvanceD
Datasheet
12In Stock
3.000Expected 14/09/2026
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
TDK Varistors 30VAC 10% 14mm StandarD
Datasheet
739In Stock
18.000Expected 12/10/2026
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

TDK Varistors 300VAC 10% 14mm StandarD
Datasheet
2.604In Stock
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

TDK Varistors 320VAC 10% 14mm StandarD
Datasheet
699In Stock
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

TDK Varistors 35VAC 10% 14mm StandarD
Datasheet
1.975In Stock
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

TDK Varistors 40VAC 10% 14mm StandarD
Datasheet
1.450In Stock
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
TDK Varistors 420VAC 10% 14mm StandarD
Datasheet
1.240In Stock
6.000Expected 21/09/2026
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

TDK Varistors 420VAC 10% 14mm StandarD
Datasheet
1.278In Stock
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
TDK Varistors 60VAC 10% 14mm StandarD
Datasheet
4.726In Stock
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
TDK Varistors 95VAC 10% 14mm StandarD
Datasheet
464In Stock
3.000Expected 14/09/2026
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
TDK Varistors 275VAC 10% 14mm 125 DegC AdvanceD
Datasheet
1.635In Stock
3.000Expected 19/10/2026
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
TDK Varistors 320VAC 10% 14mm 125 DegC AdvanceD
Datasheet
1.298In Stock
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
TDK Varistors 460VAC 10% 20mm SuperioR MP
Datasheet
676In Stock
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

TDK Varistors 385VAC 10% 20mm EnergetiQ
Datasheet
1.359In Stock
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
TDK Varistors 175VAC 10% 20mm EnergetiQ
Datasheet
618In Stock
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
TDK Varistors 230VAC 10% 20mm EnergetiQ
Datasheet
1.192In Stock
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
TDK Varistors 250VAC 10% 20mm EnergetiQ
Datasheet
1.508In Stock
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
TDK Varistors 275VAC 10% 20mm EnergetiQ
Datasheet
4.157In Stock
Min.: 1
Mult.: 1

Disc Varistor, EnergetiQ 20mm MOVs PCB Mount Radial 275 VAC 350 VDC 430 V 710 V 20 mm 15 kA 215 J 930 pF - 40 C + 105 C Bulk
TDK Varistors 300VAC 10% 20mm EnergetiQ
Datasheet
30In Stock
1.500Expected 21/09/2026
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