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 (TWD) 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 35VAC 10% 7mm StandarD
Datasheet
21,828In Stock
Min.: 1
Mult.: 1
: 6,000

Disc Varistor, StandarD 7mm MOVs PCB Mount Radial 35 VAC 45 VDC 56 V 110 V 7 mm 250 A 2.5 J 1050 pF - 40 C + 105 C Reel, Cut Tape
TDK Varistors 20VAC 10% 7mm StandarD
Datasheet
29,307In Stock
Min.: 1
Mult.: 1

Disc Varistor, StandarD 7mm MOVs PCB Mount Radial 20 VAC 26 VDC 33 V 65 V 7 mm 250 A 1.3 J 1600 pF - 40 C + 105 C Bulk

TDK Varistors 385VAC 10% 14mm StandarD
Datasheet
6,795In Stock
Min.: 1
Mult.: 1
: 3,000

Disc Varistor,StandarD 14mm MOVs PCB Mount Radial 385 VAC 505 VDC 620 V 1.025 kV 14 mm 4.5 kA 80 J 315 pF - 40 C + 105 C Reel, Cut Tape

TDK Varistors 14VAC 10% 14mm AEC-Q200
Datasheet
2,907In Stock
Min.: 1
Mult.: 1

Disc Varistor, Auto-Grade 14mm MOVs PCB Mount Radial 14 VAC 16 VDC 22 V 43 V 17 mm 1 kA 4 J 0.01 uF - 40 C + 105 C AEC-Q100 Bulk

TDK Varistors 17VAC 10% 20mm AEC-Q200
Datasheet
1,511In Stock
Min.: 1
Mult.: 1

Disc Varistor, Auto-Grade 20mm MOVs PCB Mount Radial 17 VAC 20 VDC 27 V 53 V 7 mm 2 kA 14 J 0.0156 uF - 40 C + 105 C AEC-Q100 Bulk
TDK Varistors 420VAC 10% 25mm SuperioR
Datasheet
966In Stock
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
TDK Varistors 275VAC 10% 7mm AdvanceD
Datasheet
17,376In Stock
12,000Expected 8/10/2026
Min.: 1
Mult.: 1

Disc Varistor, AdvanceD 7mm MOVs PCB Mount Radial 275 VAC 350 VDC 430 V 710 V 7 mm 1.75 kA 27.5 J 95 pF - 40 C + 105 C Bulk
TDK Varistors 420VAC 10% 14mm MP AdvanceD
Datasheet
3,462In Stock
Min.: 1
Mult.: 1

Disc Varistor, Multi_Pulse AdvanceD 14mm MOVs PCB Mount Radial 420 VAC 560 VDC 680 V 1.12 kV 16.5 mm 6 kA 190 J 355 pF - 40 C + 105 C Bulk
TDK Varistors Leaded Varistor, 240pF 625VAC, 825VDC
Datasheet
9,716In Stock
Min.: 1
Mult.: 1

Disc Varistor, Multi_Pulse AdvanceD 14mm MOVs PCB Mount Radial 625 VAC 825 VDC 1 kV 1.65 kV 17 mm 6 kA 240 J 240 pF - 40 C + 105 C Bulk
TDK Varistors 680VAC 10% 20mm StandarD
Datasheet
3,560In Stock
Min.: 1
Mult.: 1

Disc Varistor, StandarD 20mm MOVs PCB Mount Radial 680 VAC 895 VDC 1.1 kV 1.815 kV 21.5 mm 6.5 kA 250 J 340 pF - 40 C + 105 C Bulk
TDK Varistors 385VAC 10% 80mm High E
Datasheet
20In Stock
30Expected 10/16/2026
Min.: 1
Mult.: 1

Disc Varistor, High-Energy 80mm MOVs PCB Mount SMD/SMT 385 VAC 505 VDC 620 V 1.025 kV 80 mm 100 kA 2 kJ 9000 pF - 40 C + 105 C Bulk

TDK Varistors 25VAC 10% 5mm StandarD
Datasheet
4,230In Stock
Min.: 1
Mult.: 1
: 4,500

Disc Varistor, StandarD 5mm MOVs PCB Mount Radial 25 VAC 31 VDC 39 V 77 V 5 mm 100 A 700 mJ 850 pF - 40 C + 105 C Reel, Cut Tape

TDK Varistors 250VAC 10% 10mm StandarD
Datasheet
158In Stock
Min.: 1
Mult.: 1
: 4,800

B722xxS2 MOVs PCB Mount Radial 250 VAC 320 VDC 390 V 650 V 0.8 mm 2.5 kA 38 J 245 pF - 40 C + 105 C Reel, Cut Tape
TDK Varistors 510VAC 10% 14mm AdvanceD
Datasheet
16In Stock
3,000Expected 9/14/2026
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 230VAC 10% 32mm High E
Datasheet
353In Stock
Min.: 1
Mult.: 1

Disc Varistor, High-Energy 32mm MOVs PCB Mount SMD/SMT 230 VAC 300 VDC 360 V 595 V 32 mm 25 kA 300 J 2500 pF - 40 C + 105 C Bulk
TDK Varistors 420VAC 10% 60mm High E
Datasheet
88In Stock
Min.: 1
Mult.: 1

Disc Varistor, High-Energy 60mm MOVs PCB Mount SMD/SMT 420 VAC 560 VDC 680 V 1.12 kV 60 mm 70 kA 1.5 kJ 4300 pF - 40 C + 105 C Bulk
TDK Varistors 1100VAC 10% 80mm High E
Datasheet
62In Stock
Min.: 1
Mult.: 1

Disc Varistor, High-Energy 80mm MOVs PCB Mount SMD/SMT 1.1 kVAC 1.465 kVDC 1.8 kV 2.97 kV 60 mm 100 kA 6 kJ 3200 pF - 40 C + 105 C Bulk

TDK Varistors 60VAC 10% 10mm StandarD
Datasheet
4,437In Stock
Min.: 1
Mult.: 1
: 3,000

Disc Varistor, StandarD 10mm MOVs PCB Mount Radial 60 VAC 85 VDC 100 V 165 V 10 mm 500 A 10 J 870 pF - 40 C + 105 C Reel, Cut Tape
TDK Varistors 230VAC 10% 20mm SuperioR
Datasheet
1,370In Stock
Min.: 1
Mult.: 1

Disc Varistor, Multi-Pulse SuperioR 20mm MOVs PCB Mount Radial 230 VAC 300 VDC 360 V 595 V 22.5 mm 12 kA 220 J 760 pF - 40 C + 105 C Bulk

TDK Varistors 300VAC 10% 7mm StandarD
Datasheet
1,054In Stock
Min.: 1
Mult.: 1
: 6,000

Disc Varistor, StandarD 7mm MOVs PCB Mount Radial 300 VAC 385 VDC 470 V 775 V 7 mm 1.2 kA 23 J 100 pF - 40 C + 105 C Reel, Cut Tape

TDK Varistors 385VAC 10% 7mm AdvanceD
Datasheet
4,923In Stock
Min.: 1
Mult.: 1

Disc Varistor, AdvanceD 7mm MOVs PCB Mount Radial 385 VAC 7 mm - 40 C + 105 C Bulk

TDK Varistors 50VAC 10% 7mm StandarD
Datasheet
3,835In Stock
Min.: 1
Mult.: 1
: 4,500

Disc Varistor, StandarD 7mm MOVs PCB Mount Radial 50 VAC 65 VDC 82 V 135 V 7 mm 250 A 4.2 J 530 pF - 40 C + 105 C Reel, Cut Tape

TDK Varistors 230VAC 10% 14mm StandarD
Datasheet
562In Stock
Min.: 1
Mult.: 1
: 3,000

Disc Varistor,StandarD 14mm MOVs PCB Mount Radial 230 VAC 300 VDC 360 V 595 V 14 mm 4.5 kA 60 J 530 pF - 40 C + 105 C Reel, Cut Tape
TDK Varistors 440VAC 10% 5mm StandarD
Datasheet
3,258In Stock
Min.: 1
Mult.: 1

Disc Varistor, StandarD 5mm MOVs PCB Mount Radial 440 VAC 585 VDC 715 V 1.18 kV 5 mm 400 A 16 J 32 pF - 40 C + 105 C Bulk

TDK Varistors 25VAC 10% 10mm StandarD
Datasheet
573In Stock
Min.: 1
Mult.: 1
: 3,000

Disc Varistor, StandarD 10mm MOVs PCB Mount Radial 25 VAC 31 VDC 39 V 77 V 10 mm 500 A 3.7 J 3200 pF - 40 C + 105 C Reel, Cut Tape