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 (CLP) 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
Qualification
Packaging
TDK Varistors 20VAC 10% 20mm StandarD
Datasheet
4.357On Order
Min.: 1
Mult.: 1

Disc Varistor, StandarD 20mm MOVs PCB Mount Radial 20 VAC 26 VDC 33 V 65 V 20 mm 2 kA 18 J 0.013 uF - 40 C + 105 C Bulk

TDK Varistors 150VAC 10% 20mm SuperioR
Datasheet
1.487Expected 9/14/2026
Min.: 1
Mult.: 1

Disc Varistor, Multi-Pulse SuperioR 20mm MOVs PCB Mount Radial 150 VAC 200 VDC 240 V 395 V 22.5 mm 12 kA 150 J 1160 pF - 40 C + 105 C Bulk
TDK Varistors 275VAC 10% 25mm SuperioR
Datasheet
2.400Expected 10/8/2026
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

TDK Varistors 320VAC 10% 25mm SuperioR
Datasheet
2.400Expected 10/8/2026
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
TDK Varistors 680VAC 10% 32mm High E
Datasheet
198On Order
Min.: 1
Mult.: 1

Disc Varistor, High-Energy 32mm MOVs PCB Mount SMD/SMT 680 VAC 895 VDC 1.1 kV 1.815 kV 40 mm 25 kA 760 J 830 pF - 40 C + 105 C Bulk
TDK Varistors 230VAC 10% 40mm High E
Datasheet
240On Order
Min.: 1
Mult.: 1

Disc Varistor, High-Energy 40mm MOVs Chassis Mount Screw 230 VAC 300 VDC 360 V 595 V 32 mm 40 kA 460 J 3200 pF - 40 C + 85 C Bulk
TDK Varistors 230VAC 10% 60mm High E
Datasheet
43On Order
Min.: 1
Mult.: 1

Disc Varistor, High-Energy 60mm MOVs PCB Mount SMD/SMT 230 VAC 300 VDC 360 V 595 V 60 mm 70 kA 730 J 7900 pF - 40 C + 105 C Bulk
TDK Varistors 275VAC 10% 60mm High E
Datasheet
84Expected 8/31/2026
Min.: 1
Mult.: 1

Disc Varistor, High-Energy 60mm MOVs PCB Mount SMD/SMT 275 VAC 350 VDC 430 V 710 V 60 mm 70 kA 860 J 6600 pF - 40 C + 105 C Bulk
TDK Varistors 680VAC 10% 60mm High E
Datasheet
90On Order
Min.: 1
Mult.: 1

Disc Varistor, High-Energy 60mm MOVs PCB Mount SMD/SMT 680 VAC 895 VDC 1.1 kV 1.815 kV 60 mm 70 kA 1.8 kJ 2600 pF - 40 C + 105 C Bulk
TDK Varistors 460VAC 10% 80mm High E
Datasheet
20Expected 9/28/2026
Min.: 1
Mult.: 1

Disc Varistor, High-Energy 80mm MOVs PCB Mount SMD/SMT 460 VAC 615 VDC 750 V 1.24 kV 80 mm 100 kA 2.5 kJ 7700 pF - 40 C + 105 C Bulk
TDK Varistors 275VAC 10% 5mm AdvanceD
Datasheet
4.972Expected 8/18/2026
Min.: 1
Mult.: 1

Disc Varistor, AdvanceD 5mm MOVs PCB Mount Radial 275 VAC 350 VDC 430 V 710 V 7 mm 800 A 13.5 J 60 pF - 40 C + 105 C Bulk

TDK Varistors 385VAC 10% 7mm StandarD
Datasheet
9.998Expected 8/26/2026
Min.: 1
Mult.: 1
: 5.000

Disc Varistor, StandarD 7mm MOVs PCB Mount Radial 385 VAC 505 VDC 620 V 1.025 kV 7 mm 1.2 kA 28 J 85 pF - 40 C + 105 C Reel, Cut Tape

TDK Varistors 95VAC 10% 7mm StandarD
Datasheet
6.000Expected 10/8/2026
Min.: 1
Mult.: 1
: 6.000

Disc Varistor, StandarD 7mm MOVs PCB Mount Radial 95 VAC 125 VDC 150 V 250 V 7 mm 250 A 7.6 J 335 pF - 40 C + 105 C Reel, Cut Tape
TDK Varistors 230VAC 10% 7mm StandarD
Datasheet
4.972Expected 9/16/2026
Min.: 1
Mult.: 1

Disc Varistor, StandarD 7mm MOVs PCB Mount Radial 230 VAC 300 VDC 360 V 595 V 7 mm 1.2 kA 17 J 115 pF - 40 C + 105 C Bulk
TDK Varistors 385VAC 10% 10mm MP AdvanceD
Datasheet
5.972Expected 9/21/2026
Min.: 1
Mult.: 1

Disc Varistor, Multi-Pulse AdvanceD 10mm MOVs PCB Mount Radial 385 VAC 505 VDC 620 V 1.025 kV 12.5 mm 3.5 kA 82 J 230 pF - 40 C + 105 C Bulk

TDK Varistors 30VAC 10% 10mm StandarD
Datasheet
2.690In Stock
3.000Expected 8/31/2026
Min.: 1
Mult.: 1
: 3.000

Disc Varistor, StandarD 10mm MOVs PCB Mount Radial 30 VAC 38 VDC 47 V 93 V 12 mm 500 A 4.4 J 2750 pF - 40 C + 105 C Reel, Cut Tape

TDK Varistors 30VAC 10% 10mm StandarD
Datasheet
2.997Expected 9/24/2026
Min.: 1
Mult.: 1
: 3.000

Disc Varistor, StandarD 10mm MOVs PCB Mount Radial 30 VAC 38 VDC 47 V 93 V 10 mm 500 A 4.4 J 2750 pF - 40 C + 105 C Reel, Cut Tape
TDK Varistors 440VAC 10% 10mm StandarD
Datasheet
2.994Expected 9/14/2026
Min.: 1
Mult.: 1

Disc Varistor, StandarD 10mm MOVs PCB Mount Radial 440 VAC 585 VDC 715 V 1.18 kV 10 mm 2.5 kA 47 J 158 pF - 40 C + 105 C Bulk

TDK Varistors 75VAC 10% 10mm StandarD
Datasheet
3.000Expected 10/8/2026
Min.: 1
Mult.: 1
: 3.000

Disc Varistor, StandarD 10mm MOVs PCB Mount Radial 75 VAC 100 VDC 120 V 200 V 12 mm 25 A 12 J 720 pF - 40 C + 105 C Reel, Cut Tape

TDK Varistors 275VAC 10% 14mm StandarD
Datasheet
2.533Expected 9/8/2026
Min.: 1
Mult.: 1
: 3.000

Disc Varistor,StandarD 14mm MOVs PCB Mount Radial 275 VAC 350 VDC 430 V 710 V 14 mm 4.5 kA 71 J 440 pF - 40 C + 105 C Reel, Cut Tape

TDK Varistors 75VAC 10% 14mm StandarD
Datasheet
2.990Expected 9/14/2026
Min.: 1
Mult.: 1
: 3.000

Disc Varistor,StandarD 14mm MOVs PCB Mount Radial 75 VAC 100 VDC 120 V 200 V 14 mm 1 kA 20 J 1370 pF - 40 C + 105 C Reel, Cut Tape

TDK Varistors 17VAC 10% 14mm AEC-Q200
Datasheet
2.588Expected 9/21/2026
Min.: 1
Mult.: 1

Disc Varistor, Auto-Grade 14mm MOVs PCB Mount Radial 17 VAC 20 VDC 27 V 53 V 7 mm 1 kA 5 J 8200 pF - 40 C + 105 C AEC-Q100 Bulk
TDK Varistors 680VAC 10% 14mm AdvanceD
Datasheet
2.680Expected 9/21/2026
Min.: 1
Mult.: 1

Disc Varistor, AdvanceD 14mm MOVs PCB Mount Radial 680 VAC 895 VDC 1.1 kV 1.815 kV 15.5 mm 5 kA 220 J 140 pF - 40 C + 105 C Bulk
TDK Varistors 420VAC 10% 32mm High E
Datasheet
77Expected 8/24/2026
Min.: 1
Mult.: 1

Disc Varistor, High-Energy 32mm MOVs PCB Mount SMD/SMT 420 VAC 560 VDC 680 V 1.12 kV 32 mm 25 kA 600 J 1300 pF - 40 C + 105 C Bulk
TDK Varistors 440VAC 10% 40mm High E
Datasheet
36Expected 11/16/2026
Min.: 1
Mult.: 1

Disc Varistor, High-Energy 40mm MOVs PCB Mount SMD/SMT 440 VAC 585 VDC 715 V 1.18 kV 40 mm 40 kA 950 J 1700 pF - 40 C + 105 C Bulk