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.

Results: 695
Select Image Part #
 Mfr.
Description Datasheet Availability Pricing (USD) 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
Max Surge Current
Surge Energy Rating
Capacitance
Minimum Operating Temperature
Maximum Operating Temperature
Qualification
Packaging

TDK Varistors 320VAC 10% 20mm StandarD
Datasheet
1,217In Stock
Min.: 1
Mult.: 1
: 4,000

Disc Varistor, StandarD 20mm MOVs PCB Mount Radial 320 VAC 420 VDC 510 V 840 V 21.5 mm 8 kA 184 J 720 pF - 40 C + 105 C Reel, Cut Tape
TDK Varistors 115VAC 10% 20mm StandarD
Datasheet
1,690In Stock
Min.: 1
Mult.: 1

Disc Varistor, StandarD 20mm MOVs PCB Mount Radial 125 VAC 150 VDC 180 V 300 V 20 mm 6.5 kA 60 J 1.52 nF - 40 C + 105 C Bulk

TDK Varistors 14VAC 10% 20mm AEC-Q200
Datasheet
358In Stock
Min.: 1
Mult.: 1

Disc Varistor, Auto-Grade 20mm MOVs PCB Mount Radial 14 VAC 16 VDC 22 V 43 V 23 mm 2 kA 12 J 19 nF - 40 C + 105 C AEC-Q100 Bulk
TDK Varistors 140VAC 10% 20mm StandarD
Datasheet
2,954In Stock
Min.: 1
Mult.: 1

Disc Varistor, StandarD 20mm MOVs PCB Mount Radial 140 VAC 180 VDC 220 V 360 V 20 mm 8 kA 78 J 1.24 nF - 40 C + 105 C Bulk

TDK Varistors 150VAC 10% 20mm StandarD
Datasheet
716In Stock
Min.: 1
Mult.: 1
: 2,000

B722xxS1 MOVs PCB Mount Radial 150 VAC 200 VDC 240 V 395 V 20 mm 8 kA 85 J 1.55 nF - 40 C + 105 C Reel, Cut Tape
TDK Varistors 17VAC 10% 20mm StandarD
Datasheet
1,549In Stock
Min.: 1
Mult.: 1

Disc Varistor, StandarD 20mm MOVs PCB Mount Radial 17 VAC 22 VDC 27 V 53 V 20 mm 2 kA 14 J 15.6 nF - 40 C + 105 C Bulk
TDK Varistors 175VAC 10% 20mm StandarD
Datasheet
3,357In Stock
8,400Expected 02/11/2026
Min.: 1
Mult.: 1

Disc Varistor, StandarD 20mm MOVs PCB Mount Radial 175 VAC 225 VDC 270 V 455 V 20 mm 8 kA 98 J 1 nF - 40 C + 105 C Bulk
TDK Varistors 130VAC 10% 20mm AdvanceD
Datasheet
9,478In Stock
7,500Expected 08/09/2026
Min.: 1
Mult.: 1

Disc Varistor, AdvanceD 20mm MOVs PCB Mount Radial 130 VAC 170 VDC 205 V 340 V 20 mm 10 kA 100 J 1.34 nF - 40 C + 105 C Bulk
TDK Varistors 150VAC 10% 20mm AdvanceD
Datasheet
1,721In Stock
Min.: 1
Mult.: 1

Disc Varistor, AdvanceD 20mm MOVs PCB Mount Radial 150 VAC 200 VDC 240 V 395 V 21.5 mm 1 kA 120 J 1.55 nF - 40 C + 105 C Bulk
TDK Varistors 175VAC 10% 20mm AdvanceD
Datasheet
2,092In Stock
4,086Expected 08/09/2026
Min.: 1
Mult.: 1

Disc Varistor, AdvanceD 20mm MOVs PCB Mount Radial 175 VAC 225 VDC 270 V 455 V 21.5 mm 10 kA 135 J 1 nF - 40 C + 105 C Bulk
TDK Varistors 230VAC 10% 20mm AdvanceD
Datasheet
109In Stock
1,500Expected 04/09/2026
Min.: 1
Mult.: 1

Disc Varistor, AdvanceD 20mm MOVs PCB Mount Radial 230 VAC 300 VDC 360 V 595 V 21.5 mm 10 kA 180 J 760 pF - 40 C + 105 C Bulk
TDK Varistors 250VAC 10% 20mm AdvanceD
Datasheet
406In Stock
3,000Expected 14/09/2026
Min.: 1
Mult.: 1

Disc Varistor, AdvanceD 20mm MOVs PCB Mount Radial 250 VAC 320 VDC 390 V 650 V 21.5 mm 1 kA 195 J 940 pF - 40 C + 105 C Bulk
TDK Varistors 320VAC 10% 20mm AdvanceD
Datasheet
2,959In Stock
Min.: 1
Mult.: 1

Disc Varistor, AdvanceD 20mm MOVs PCB Mount Radial 320 VAC 420 VDC 510 V 840 V 21.5 mm 1 kA 273 J 720 pF - 40 C + 105 C Bulk
TDK Varistors 385VAC 10% 20mm AdvanceD
Datasheet
886In Stock
7,200Expected 06/10/2026
Min.: 1
Mult.: 1

Disc Varistor, AdvanceD 20mm MOVs PCB Mount Radial 385 VAC 505 VDC 620 V 1.025 kV 21.5 mm 10 kA 273 J 600 pF - 40 C + 105 C Bulk
TDK Varistors 460VAC 10% 20mm AdvanceD
Datasheet
1,630In Stock
Min.: 1
Mult.: 1

Disc Varistor, AdvanceD 20mm MOVs PCB Mount Radial 460 VAC 615 VDC 750 V 1.24 kV 21.5 mm 10 kA 300 J 380 pF - 40 C + 105 C Bulk
TDK Varistors 625VAC 10% 20mm AdvanceD
Datasheet
394In Stock
Min.: 1
Mult.: 1

Disc Varistor, AdvanceD 20mm MOVs PCB Mount Radial 625 VAC 825 VDC 1 kV 1.65 kV 21.5 mm 10 kA 400 J 280 pF - 40 C + 105 C Bulk
TDK Varistors 250VAC 10% 20mm SuperioR
Datasheet
749In Stock
Min.: 1
Mult.: 1

Disc Varistor, Multi-Pulse SuperioR 20mm MOVs PCB Mount Radial 250 VAC 320 VDC 390 V 650 V 22.5 mm 12 kA 250 J 700 pF - 40 C + 105 C Bulk
TDK Varistors 300VAC 10% 20mm SuperioR
Datasheet
500In Stock
Min.: 1
Mult.: 1

Disc Varistor, Multi-Pulse SuperioR 20mm MOVs PCB Mount Radial 2220 (5750 metric) 300 VAC 385 VDC 470 V 775 V 22.5 mm 12 kA 320 J 580 pF - 40 C + 105 C Bulk
TDK Varistors 420VAC 10% 20mm StandarD
Datasheet
1,561In Stock
12,000Expected 19/10/2026
Min.: 1
Mult.: 1

Disc Varistor, StandarD 20mm MOVs PCB Mount Radial 420 VAC 560 VDC 680 V 1.12 kV 20 mm 8 kA 175 J 420 pF - 40 C + 105 C Bulk
TDK Varistors 460VAC 10% 20mm StandarD
Datasheet
630In Stock
2,400Expected 08/10/2026
Min.: 1
Mult.: 1

Disc Varistor, StandarD 20mm MOVs PCB Mount Radial 460 VAC 615 VDC 750 V 1.24 kV 20 mm 8 kA 195 J 380 pF - 40 C + 105 C Bulk
TDK Varistors 510VAC 10% 20mm StandarD
Datasheet
1,548In Stock
3,000Expected 07/10/2026
Min.: 1
Mult.: 1

Disc Varistor, StandarD 20mm MOVs PCB Mount Radial 510 VAC 670 VDC 820 V 1.355 kV 20 mm 2.5 kA 190 J 340 pF - 40 C + 105 C Bulk
TDK Varistors 625VAC 10% 20mm StandarD
Datasheet
1,343In Stock
4,800Expected 02/09/2026
Min.: 1
Mult.: 1

Disc Varistor, StandarD 20mm MOVs PCB Mount Radial 625 VAC 825 VDC 1 kV 1.65 kV 20 mm 4.5 kA 230 J 280 pF - 40 C + 105 C Bulk
TDK Varistors 75VAC 10% 20mm StandarD
Datasheet
2,894In Stock
4,200Expected 27/10/2026
Min.: 1
Mult.: 1

Disc Varistor, StandarD 20mm MOVs PCB Mount Radial 75 VAC 100 VDC 120 V 200 V 20 mm 6.5 kA 40 J 2.9 nF - 40 C + 105 C Bulk
TDK Varistors 320VAC 10% 20mm 125 DegC AdvanceD
Datasheet
2,625In Stock
Min.: 1
Mult.: 1

Disc Varistor, AdvanceD 125C, 85C/85%RH 20mm MOVs PCB Mount Radial 320 VAC 420 VDC 510 V 840 V 23.5 mm 10 kA 273 J 720 pF - 40 C + 125 C Bulk
TDK Varistors 550VAC 10% 40mm High E
Datasheet
41In Stock
250Expected 16/11/2026
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 1.4 nF - 40 C + 105 C Bulk