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 (JPY) 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 680VAC 10% 20mm StandarD
Datasheet
3,570In 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 275VAC 10% 5mm StandarD
Datasheet
26,602In Stock
Min.: 1
Mult.: 1
: 1,500

Disc Varistor, StandarD 5mm MOVs PCB Mount Radial 275 VAC 350 VDC 430 V 710 V 5 mm 400 A 8.6 J 60 pF - 40 C + 105 C Reel, Cut Tape
TDK Varistors 320VAC 10% 20mm SuperioR MP
Datasheet
7,341In Stock
Min.: 1
Mult.: 1

Disc Varistor, Multi-Pulse SuperioR 20mm MOVs PCB Mount Radial 320 VAC 420 VDC 510 V 840 V 22.5 mm 12 kA 330 J 1000 pF - 40 C + 105 C Bulk
TDK Varistors 140VAC 10% 20mm AdvanceD
Datasheet
15,503In Stock
Min.: 1
Mult.: 1

Disc Varistor, AdvanceD 20mm MOVs PCB Mount Radial 140 VAC 180 VDC 220 V 360 V 21.5 mm 10 kA 110 J 1240 pF - 40 C + 105 C Bulk

TDK Varistors 50VAC 10% 7mm StandarD
Datasheet
11,786In Stock
Min.: 1
Mult.: 1
: 1,500

Disc Varistor, StandarD 7mm MOVs PCB Mount Radial 50 VAC 65 VDC 82 V 135 V 7 mm 1.2 kA 4.2 J 530 pF - 40 C + 105 C Reel, Cut Tape
TDK Varistors 250VAC 10% 14mm StandarD
Datasheet
14,172In Stock
Min.: 1
Mult.: 1

Disc Varistor,StandarD 14mm MOVs PCB Mount Radial 250 VAC 320 VDC 390 V 650 V 14 mm 4.5 kA 65 J 350 pF - 40 C + 105 C Bulk

TDK Varistors 25VAC 10% 20mm AEC-Q200
Datasheet
1,807In Stock
Min.: 1
Mult.: 1

Disc Varistor, Auto-Grade 20mm MOVs PCB Mount Radial 25 VAC 28 VDC 39 V 77 V 23 mm 2 kA 100 J 0.0111 uF - 40 C + 105 C AEC-Q100 Bulk
TDK Varistors 550VAC 10% 40mm High E
Datasheet
250In Stock
Min.: 1
Mult.: 1

Disc Varistor, High-Energy 40mm MOVs Chassis Mount Screw 550 VAC 745 VDC 910 V 1.5 kV 40 kA 960 J 1400 pF - 40 C + 105 C Bulk
TDK Varistors 385VAC 10% 80mm High E
Datasheet
23In 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 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 MOV 150VAC 10% 40MM HIGH E
Datasheet
136In Stock
Min.: 1
Mult.: 1

Disc Varistor, High-Energy 40mm MOVs Chassis Mount Screw 150 VAC 200 VDC 240 V 395 V 32 mm 40 kA 360 J 4800 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 130VAC 10% 5mm StandarD
Datasheet
4,409In Stock
Min.: 1
Mult.: 1
: 1,500

Disc Varistor, StandarD 5mm MOVs PCB Mount Radial 130 VAC 170 VDC 205 V 340 V 5 mm 400 A 4.2 J 135 pF - 40 C + 105 C Reel, Cut Tape

TDK Varistors 275VAC 10% 7mm StandarD
Datasheet
2,364In Stock
Min.: 1
Mult.: 1
: 1,000

Disc Varistor, StandarD 7mm MOVs PCB Mount Radial 275 VAC 350 VDC 430 V 710 V 7 mm 1.2 kA 21 J 110 pF - 40 C + 105 C Reel, Cut Tape

TDK Varistors 150VAC 10% 10mm AdvanceD
Datasheet
1,735In Stock
3,000Expected 8/31/2026
Min.: 1
Mult.: 1
: 1,500

Disc Varistor, AdvanceD 10mm MOVs PCB Mount Radial 150 VAC 200 VDC 240 V 395 V 12 mm 3.5 kA 30 J 430 pF - 40 C + 105 C Reel, Cut Tape

TDK Varistors 95VAC 10% 14mm StandarD
Datasheet
190In Stock
1,500Expected 9/7/2026
Min.: 1
Mult.: 1
: 1,500

Disc Varistor,StandarD 14mm MOVs PCB Mount Radial 95 VAC 125 VDC 150 V 250 V 14 mm 1 kA 25 J 1200 pF - 40 C + 105 C Reel, Cut Tape

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

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
: 1,000

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

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

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
: 1,000

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 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
: 1,500

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

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 11VAC 10% 20mm StandarD
Datasheet
2,468In Stock
Min.: 1
Mult.: 1

Disc Varistor, StandarD 20mm MOVs PCB Mount Radial 11 VAC 14 VDC 18 V 36 V 20 mm 2 kA 10 J 0.023 uF - 40 C + 105 C Bulk