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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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
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TDK Varistors 40VAC 10% 20mm StandarD
Datasheet
5,023In Stock
6,000Expected 10/8/2026
Min.: 1
Mult.: 1

Disc Varistor, StandarD 20mm MOVs PCB Mount Radial 40 VAC 56 VDC 68 V 135 V 20 mm 2 kA 37 J 6.75 nF - 40 C + 105 C Bulk
TDK Varistors 50VAC 10% 20mm StandarD
Datasheet
7,437In Stock
Min.: 1
Mult.: 1

Disc Varistor, StandarD 20mm MOVs PCB Mount Radial 50 VAC 65 VDC 82 V 135 V 20 mm 6.5 kA 27 J 3.8 nF - 40 C + 105 C Bulk
TDK Varistors 550VAC 10% 20mm StandarD
Datasheet
7,071In Stock
Min.: 1
Mult.: 1

Disc Varistor, StandarD 20mm MOVs PCB Mount Radial 550 VAC 745 VDC 910 V 1.5 kV 21.5 mm 6.5 kA 210 J 320 pF - 40 C + 105 C Bulk
TDK Varistors 250VAC 10% 25mm SuperioR
Datasheet
724In Stock
Min.: 1
Mult.: 1

Disc Varistor, SuperioR 25mm MOVs PCB Mount Radial 250 VAC 320 VDC 390 V 650 V 27.5 mm 20 kA 345 J 2.1 nF - 40 C + 105 C Bulk
TDK Varistors 385VAC 10% 25mm SuperioR
Datasheet
815In Stock
Min.: 1
Mult.: 1

Disc Varistor, SuperioR 25mm MOVs PCB Mount Radial 385 VAC 505 VDC 620 V 1.025 kV 27.5 mm 20 kA 600 J 1.25 nF - 40 C + 105 C Bulk
TDK Varistors 580VAC 10% 25mm SuperioR
Datasheet
2,912In Stock
Min.: 1
Mult.: 1

Disc Varistor, SuperioR 25mm MOVs PCB Mount Radial 580 VAC 780 VDC 940 V 1.58 kV 27.5 mm 20 kA 800 J 830 pF - 40 C + 105 C Bulk
TDK Varistors 150VAC 10% 40mm High E
Datasheet
248In Stock
Min.: 1
Mult.: 1

Disc Varistor, High-Energy 40mm MOVs Chassis Mount Screw 150 VAC 200 VDC 240 V 395 V 40 kA 360 J 4.8 nF - 40 C + 105 C Bulk
TDK Varistors 460VAC 10% 40mm High E
Datasheet
348In Stock
Min.: 1
Mult.: 1

Disc Varistor, High-Energy 40mm MOVs Chassis Mount Screw 460 VAC 615 VDC 750 V 1.24 kV 40 kA 960 J 1.6 nF - 40 C + 105 C Bulk
TDK Varistors 130VAC 10% 32mm High E
Datasheet
142In Stock
Min.: 1
Mult.: 1

Disc Varistor, High-Energy 32mm MOVs Chassis Mount Screw 130 VAC 170 VDC 205 V 340 V 32 mm 25 kA 210 J 4.4 nF - 40 C + 105 C Bulk
TDK Varistors 250VAC 10% 32mm High E
Datasheet
184In Stock
Min.: 1
Mult.: 1

Disc Varistor, High-Energy 32mm MOVs PCB Mount SMD/SMT 250 VAC 320 VDC 390 V 650 V 32 mm 25 kA 330 J 2.2 nF - 40 C + 105 C Bulk
TDK Varistors 275VAC 10% 32mm High E
Datasheet
762In Stock
Min.: 1
Mult.: 1

Disc Varistor, High-Energy 32mm MOVs PCB Mount SMD/SMT 275 VAC 350 VDC 430 V 710 V 32 mm 25 kA 360 J 2 nF - 40 C + 105 C Bulk
TDK Varistors 460VAC 10% 32mm High E
Datasheet
103In Stock
Min.: 1
Mult.: 1

Disc Varistor, High-Energy 32mm MOVs PCB Mount SMD/SMT 460 VAC 615 VDC 750 V 1.24 kV 32 mm 25 kA 660 J 1.2 nF - 40 C + 105 C Bulk
TDK Varistors 150VAC 10% 32mm High E
Datasheet
181In Stock
280Expected 11/25/2026
Min.: 1
Mult.: 1

Disc Varistor, High-Energy 32mm MOVs Chassis Mount Screw 150 VAC 200 VDC 240 V 395 V 32 mm 25 kA 240 J 3.7 nF - 40 C + 105 C Bulk
TDK Varistors 550VAC 10% 32mm High E
Datasheet
177In Stock
160Expected 9/28/2026
Min.: 1
Mult.: 1

Disc Varistor, High-Energy 32mm MOVs Chassis Mount Screw 550 VAC 745 VDC 910 V 1.5 kV 32 mm 25 kA 620 J 1 nF - 40 C + 105 C Bulk
TDK Varistors 130VAC 10% 40mm High E
Datasheet
165In Stock
Min.: 1
Mult.: 1

Disc Varistor, High-Energy 40mm MOVs Chassis Mount Screw 150 VAC 170 VDC 205 V 340 V 40 mm 40 kA 310 J 5.6 nF - 40 C + 105 C Bulk
TDK Varistors 250VAC 10% 40mm High E
Datasheet
Lead-Time 16 Weeks
Min.: 1
Mult.: 1

Disc Varistor, High-Energy 40mm MOVs Chassis Mount Screw 250 VAC 320 VDC 390 V 650 V 40 mm 40 kA 490 J 2.9 nF - 40 C + 105 C Bulk
TDK Varistors 275VAC 10% 40mm High E
Datasheet
212In Stock
Min.: 1
Mult.: 1

Disc Varistor, High-Energy 40mm MOVs Chassis Mount Screw 275 VAC 350 VDC 430 V 710 V 40 mm 40 kA 550 J 2.7 nF - 40 C + 105 C Bulk
TDK Varistors 385VAC 10% 40mm High E
Datasheet
132In Stock
Min.: 1
Mult.: 1

Disc Varistor, High-Energy 40mm MOVs Chassis Mount Screw 385 VAC 505 VDC 620 V 1.025 kV 40 mm 40 kA 800 J 1.9 nF - 40 C + 105 C Bulk
TDK Varistors 420VAC 10% 40mm High E
Datasheet
107In Stock
160Expected 9/25/2026
Min.: 1
Mult.: 1

Disc Varistor, High-Energy 40mm MOVs Chassis Mount Screw 420 VAC 560 VDC 680 V 1.12 kV 40 mm 40 kA 910 J 1.8 nF - 40 C + 105 C Bulk
TDK Varistors 460VAC 10% 40mm High E
Datasheet
159In Stock
Min.: 1
Mult.: 1

Disc Varistor, High-Energy 40mm MOVs Chassis Mount Screw 460 VAC 615 VDC 750 V 1.24 kV 40 mm 40 kA 1 kJ 1.6 nF - 40 C + 105 C Bulk
TDK Varistors 550VAC 10% 40mm High E
Datasheet
384In Stock
Min.: 1
Mult.: 1

Disc Varistor, High-Energy 40mm MOVs Chassis Mount Screw 550 VAC 745 VDC 910 V 1.5 kV 40 mm 40 kA 960 J 1.4 nF - 40 C + 105 C Bulk
TDK Varistors 750VAC 10% 40mm High E
Datasheet
454In Stock
Min.: 1
Mult.: 1

Disc Varistor, High-Energy 40mm MOVs Chassis Mount Screw 750 VAC 970 VDC 1.2 kV 2 kV 40 mm 40 kA 1.2 kJ 1 nF - 40 C + 105 C Bulk
TDK Varistors 1000VAC 10% 60mm High E
Datasheet
81In Stock
Min.: 1
Mult.: 1

Disc Varistor, High-Energy 60mm MOVs PCB Mount SMD/SMT 1.1 kVAC 1.465 kVDC 1.8 kV 2.97 kV 60 mm 7 kA 3 kJ 1.6 nF - 40 C + 105 C Bulk
TDK Varistors 385VAC 10% 60mm High E
Datasheet
30In Stock
Min.: 1
Mult.: 1

Disc Varistor, High-Energy 60mm MOVs PCB Mount SMD/SMT 385 VAC 505 VDC 620 V 1.025 kV 60 mm 70 kA 1.2 kJ 4.6 nF - 40 C + 105 C Bulk
TDK Varistors 460VAC 10% 60mm High E
Datasheet
92In Stock
Min.: 1
Mult.: 1

Disc Varistor, High-Energy 60mm MOVs PCB Mount SMD/SMT 460 VAC 615 VDC 750 V 1.24 kV 60 mm 70 kA 1.65 kJ 3.9 nF - 40 C + 105 C Bulk