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SIOV Metal Oxide Varistors

TDK SIOV Metal Oxide Varistors feature a wide operating voltage range of 11 to 1100V_RMS.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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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (EUR) Filter the results in the table by unit price based on your quantity.	Qty.	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	Packaging
Varistors 115VAC 10% 20mm StandarD B72220S0111K101 TDK 1: 0,877 € 1.690In Stock	Mfr. Part No. B72220S0111K101 Mouser Part No 871-B72220S111K101	TDK	Varistors 115VAC 10% 20mm StandarD Learn More about TDK epcosvaristors	Datasheet	1.690In Stock	0,877 € 0,571 € 0,502 € 0,47 € View 0,451 € 0,427 € 0,414 € 0,404 €	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
Varistors 140VAC 10% 20mm StandarD B72220S0141K101 TDK 1: 0,877 € 2.954In Stock	Mfr. Part No. B72220S0141K101 Mouser Part No 871-B72220S141K101	TDK	Varistors 140VAC 10% 20mm StandarD Learn More about TDK epcosvaristors	Datasheet	2.954In Stock	0,877 € 0,571 € 0,502 € 0,47 € View 0,451 € 0,427 € 0,398 € 0,396 € 0,361 €	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
Varistors 150VAC 10% 20mm StandarD B72220S0151K101 TDK 1: 1,06 € 1.363In Stock 2.177Expected 10/26/2026	Mfr. Part No. B72220S0151K101 Mouser Part No 871-B72220S151K101	TDK	Varistors 150VAC 10% 20mm StandarD Learn More about TDK epcosvaristors	Datasheet	1.363In Stock 2.177Expected 10/26/2026	1,06 € 0,685 € 0,603 € 0,479 € View 0,444 € 0,435 € 0,399 € 0,396 €	Min.: 1 Mult.: 1	Disc Varistor, StandarD 20mm	MOVs	PCB Mount	Radial		150 VAC	200 VDC	240 V	395 V	20 mm	8 kA	85 J	1.16 nF	- 40 C	+ 105 C	Bulk
Varistors 150VAC 10% 20mm StandarD B72220S151K151 TDK 1: 0,946 € 716In Stock	Mfr. Part No. B72220S151K151 Mouser Part No 871-B72220S151K151	TDK	Varistors 150VAC 10% 20mm StandarD Learn More about TDK automotive multilayer varistors	Datasheet	716In Stock	Cut Tape 0,946 € 0,617 € 0,544 € 0,51 € Reel 0,433 € View 0,488 € 0,467 € 0,432 € 0,408 €	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
Varistors 17VAC 10% 20mm StandarD B72220S0170K101 TDK 1: 0,877 € 1.549In Stock	Mfr. Part No. B72220S0170K101 Mouser Part No 871-B72220S170K101	TDK	Varistors 17VAC 10% 20mm StandarD Learn More about TDK epcosvaristors	Datasheet	1.549In Stock	0,877 € 0,571 € 0,502 € 0,47 € View 0,451 € 0,427 € 0,41 € 0,396 € 0,361 €	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
Varistors 175VAC 10% 20mm StandarD B72220S0171K101 TDK 1: 0,757 € 3.231In Stock 8.400Expected 11/2/2026	Mfr. Part No. B72220S0171K101 Mouser Part No 871-B72220S171K101	TDK	Varistors 175VAC 10% 20mm StandarD Learn More about TDK epcosvaristors	Datasheet	3.231In Stock 8.400Expected 11/2/2026	0,757 € 0,489 € 0,429 € 0,401 € View 0,384 € 0,37 € 0,346 € 0,335 €	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
Varistors 20VAC 10% 20mm StandarD B72220S0200K101 TDK 1: 0,929 € 1.347In Stock 3.000On Order	Mfr. Part No. B72220S0200K101 Mouser Part No 871-B72220S200K101	TDK	Varistors 20VAC 10% 20mm StandarD Learn More about TDK epcosvaristors	Datasheet	1.347In Stock 3.000On Order On Order Ship Dates Mfr. No: B72220S0200K101 Stock: 1.347 Can Dispatch Immediately On Order: 1.500 Expected 10/26/2026 1.500 Expected 10/27/2026 Factory Lead Time: 20 Weeks	0,929 € 0,605 € 0,532 € 0,498 € View 0,477 € 0,446 € 0,417 € 0,396 € 0,361 €	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	13 nF	- 40 C	+ 105 C	Bulk
Varistors 150VAC 10% 20mm AdvanceD B72220S2151K101 TDK 1: 1,03 € 1.417In Stock	Mfr. Part No. B72220S2151K101 Mouser Part No 871-B72220S2151K101	TDK	Varistors 150VAC 10% 20mm AdvanceD Learn More about TDK epcosvaristors	Datasheet	1.417In Stock	1,03 € 0,674 € 0,596 € 0,558 € View 0,536 € 0,505 € 0,477 €	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
Varistors 230VAC 10% 20mm AdvanceD B72220S2231K101 TDK 1: 0,946 € 1.599In Stock	Mfr. Part No. B72220S2231K101 Mouser Part No 871-B72220S2231K101	TDK	Varistors 230VAC 10% 20mm AdvanceD Learn More about TDK epcosvaristors	Datasheet	1.599In Stock	0,946 € 0,612 € 0,539 € 0,505 € View 0,483 € 0,467 € 0,444 € 0,404 € 0,401 €	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
Varistors 230VAC 10% 20mm StandarD B72220S0231K101 TDK 1: 0,757 € 3.380In Stock	Mfr. Part No. B72220S0231K101 Mouser Part No 871-B72220S231K101	TDK	Varistors 230VAC 10% 20mm StandarD Learn More about TDK epcosvaristors	Datasheet	3.380In Stock	0,757 € 0,489 € 0,429 € 0,401 € View 0,384 € 0,37 € 0,355 € 0,335 €	Min.: 1 Mult.: 1	Disc Varistor, StandarD 20mm	MOVs	PCB Mount	Radial		230 VAC	300 VDC	360 V	595 V	20 mm	8 kA	130 J	760 pF	- 40 C	+ 105 C	Bulk
Varistors 385VAC 10% 20mm AdvanceD B72220S2381K101 TDK 1: 1,08 € 1.000In Stock 7.200Expected 11/10/2026	Mfr. Part No. B72220S2381K101 Mouser Part No 871-B72220S2381K101	TDK	Varistors 385VAC 10% 20mm AdvanceD Learn More about TDK epcosvaristors	Datasheet	1.000In Stock 7.200Expected 11/10/2026	1,08 € 0,693 € 0,571 € 0,54 € View 0,423 € 0,412 € 0,402 € 0,365 €	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
Varistors 460VAC 10% 20mm AdvanceD B72220S2461K101 TDK 1: 1,16 € 1.572In Stock 1.600Expected 2/18/2027	Mfr. Part No. B72220S2461K101 Mouser Part No 871-B72220S2461K101	TDK	Varistors 460VAC 10% 20mm AdvanceD Learn More about TDK epcosvaristors	Datasheet	1.572In Stock 1.600Expected 2/18/2027	1,16 € 0,842 € 0,798 €	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
Varistors 250VAC 10% 20mm StandarD B72220S0251K101 TDK 1: 0,757 € 2.553In Stock 8.400Expected 11/23/2026	Mfr. Part No. B72220S0251K101 Mouser Part No 871-B72220S251K101	TDK	Varistors 250VAC 10% 20mm StandarD Learn More about TDK epcosvaristors	Datasheet	2.553In Stock 8.400Expected 11/23/2026	0,757 € 0,489 € 0,429 € 0,401 € View 0,384 € 0,366 € 0,336 € 0,335 €	Min.: 1 Mult.: 1	Disc Varistor, StandarD 20mm	MOVs	PCB Mount	Radial		250 VAC	320 VDC	390 V	650 V	20 mm	8 kA	140 J	700 pF	- 40 C	+ 105 C	Bulk
Varistors 625VAC 10% 20mm AdvanceD B72220S2621K101 TDK 1: 1,75 € 339In Stock 2.400Expected 11/16/2026	Mfr. Part No. B72220S2621K101 Mouser Part No 871-B72220S2621K101	TDK	Varistors 625VAC 10% 20mm AdvanceD Learn More about TDK epcosvaristors	Datasheet	339In Stock 2.400Expected 11/16/2026	1,75 € 1,29 € 1,16 € 1,02 € View 0,989 € 0,929 € 0,82 € 0,812 €	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
Varistors 250VAC 10% 20mm SuperioR B72220S3251K101 TDK 1: 2,38 € 749In Stock	Mfr. Part No. B72220S3251K101 Mouser Part No 871-B72220S3251K101	TDK	Varistors 250VAC 10% 20mm SuperioR Learn More about TDK epcosvaristors	Datasheet	749In Stock	2,38 € 1,51 € 1,32 € 1,13 € View 1,06 € 0,929 € 0,772 € 0,754 €	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
Varistors 300VAC 10% 20mm SuperioR B72220S3301K101 TDK 1: 1,56 € 425In Stock 1.500Expected 10/19/2026	Mfr. Part No. B72220S3301K101 Mouser Part No 871-B72220S3301K101	TDK	Varistors 300VAC 10% 20mm SuperioR Learn More about TDK epcosvaristors	Datasheet	425In Stock 1.500Expected 10/19/2026	1,56 € 1,14 € 1,04 € 0,929 € View 0,869 € 0,835 € 0,773 € 0,754 €	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
Varistors 320VAC 10% 20mm SuperioR B72220S3321K101 TDK 1: 1,56 € 113In Stock 3.000Expected 10/19/2026	Mfr. Part No. B72220S3321K101 Mouser Part No 871-B72220S3321K101	TDK	Varistors 320VAC 10% 20mm SuperioR Learn More about TDK epcosvaristors	Datasheet	113In Stock 3.000Expected 10/19/2026	1,56 € 1,14 € 1,04 € 0,929 € View 0,869 € 0,835 € 0,789 € 0,754 €	Min.: 1 Mult.: 1	Disc Varistor, Multi-Pulse SuperioR 20mm	MOVs	PCB Mount	Radial	2220 (5750 metric)	320 VAC	420 VDC	510 V	840 V	22.5 mm	12 kA	320 J	540 pF	- 40 C	+ 105 C	Bulk
Varistors 420VAC 10% 20mm StandarD B72220S0421K101 TDK 1: 0,989 € 1.511In Stock 12.000Expected 11/23/2026	Mfr. Part No. B72220S0421K101 Mouser Part No 871-B72220S421K101	TDK	Varistors 420VAC 10% 20mm StandarD Learn More about TDK epcosvaristors	Datasheet	1.511In Stock 12.000Expected 11/23/2026	0,989 € 0,644 € 0,568 € 0,532 € View 0,51 € 0,475 € 0,453 € 0,411 €	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
Varistors 460VAC 10% 20mm StandarD B72220S0461K101 TDK 1: 0,989 € 2.400Expected 10/26/2026	Mfr. Part No. B72220S0461K101 Mouser Part No 871-B72220S461K101	TDK	Varistors 460VAC 10% 20mm StandarD Learn More about TDK epcosvaristors	Datasheet	2.400Expected 10/26/2026	0,989 € 0,644 € 0,568 € 0,532 € View 0,507 € 0,458 € 0,453 € 0,452 € 0,425 €	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
Varistors 510VAC 10% 20mm StandarD B72220S0511K101 TDK 1: 1,41 € 1.467In Stock 3.000Expected 11/10/2026	Mfr. Part No. B72220S0511K101 Mouser Part No 871-B72220S511K101	TDK	Varistors 510VAC 10% 20mm StandarD Learn More about TDK epcosvaristors	Datasheet	1.467In Stock 3.000Expected 11/10/2026	1,41 € 1,03 € 0,937 € 0,832 € View 0,782 € 0,752 € 0,687 € 0,677 €	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
Varistors 75VAC 10% 20mm StandarD B72220S0750K101 TDK 1: 0,877 € 2.774In Stock 4.200Expected 10/27/2026	Mfr. Part No. B72220S0750K101 Mouser Part No 871-B72220S750K101	TDK	Varistors 75VAC 10% 20mm StandarD Learn More about TDK epcosvaristors	Datasheet	2.774In Stock 4.200Expected 10/27/2026	0,877 € 0,571 € 0,502 € 0,47 € View 0,451 € 0,434 € 0,404 € 0,396 €	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
Varistors 320VAC 10% 20mm 125 DegC AdvanceD B72220U2321K501 TDK 1: 1,01 € 2.361In Stock 3.000Expected 10/27/2026	Mfr. Part No. B72220U2321K501 Mouser Part No 871-B72220U2321K501	TDK	Varistors 320VAC 10% 20mm 125 DegC AdvanceD Learn More about TDK b722 varistors	Datasheet	2.361In Stock 3.000Expected 10/27/2026	1,01 € 0,658 € 0,581 € 0,544 € View 0,521 € 0,488 € 0,449 € 0,434 €	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
Varistors 420VAC 10% 25mm SuperioR B72225S4421K101 TDK 1: 4,45 € 10In Stock 1.200Expected 2/18/2027	Mfr. Part No. B72225S4421K101 Mouser Part No 871-B72225S4421K101	TDK	Varistors 420VAC 10% 25mm SuperioR Learn More about TDK epcosvaristors	Datasheet	10In Stock 1.200Expected 2/18/2027	4,45 € 3,58 € 3,39 € 2,93 € 2,79 €	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	1.15 nF	- 40 C	+ 105 C	Bulk
Varistors 580VAC 10% 25mm SuperioR B72225S4581K101 TDK 1: 4,16 € 260In Stock 500Expected 10/26/2026	Mfr. Part No. B72225S4581K101 Mouser Part No 871-B72225S4581K101	TDK	Varistors 580VAC 10% 25mm SuperioR Learn More about TDK epcosvaristors	Datasheet	260In Stock 500Expected 10/26/2026	4,16 € 3,16 € 2,92 € 2,64 € View 2,50 € 2,46 € 2,42 € 2,30 €	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
Varistors 320VAC 10% 32mm High E B72232B0321K001 TDK 1: 18,09 € 82In Stock	Mfr. Part No. B72232B0321K001 Mouser Part No 871-B72232B0321K001	TDK	Varistors 320VAC 10% 32mm High E Learn More about TDK epcosvaristors	Datasheet	82In Stock	18,09 € 14,96 € 13,61 € 12,38 € View 12,07 € 12,01 €	Min.: 1 Mult.: 1	Disc Varistor, High-Energy 32mm	MOVs	PCB Mount	SMD/SMT		320 VAC	420 VDC	510 V	840 V	32 mm	25 kA	430 J	1.7 nF	- 40 C	+ 105 C	Bulk