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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 (SGD) 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	Qualification	Packaging
Varistors 320VAC 10% 20mm StandarD B72220S0321K551 TDK 1: $1.29 1,012In Stock	Mfr. Part No. B72220S0321K551 Mouser Part No 871-B72220S0321K551	TDK	Varistors 320VAC 10% 20mm StandarD Learn More about TDK epcosvaristors	Datasheet	1,012In Stock	Cut Tape $1.29 $0.836 $0.688 $0.658 Reel $0.586 View $0.605 $0.578 $0.558	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
Varistors 11VAC 10% 20mm StandarD B72220S0110K101 TDK 1: $1.39 2,033In Stock	Mfr. Part No. B72220S0110K101 Mouser Part No 871-B72220S110K101	TDK	Varistors 11VAC 10% 20mm StandarD Learn More about TDK epcosvaristors	Datasheet	2,033In Stock	$1.39 $0.903 $0.744 $0.713 View $0.675 $0.664 $0.638 $0.634	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	23 nF	- 40 C	+ 105 C		Bulk
Varistors 115VAC 10% 20mm StandarD B72220S0111K101 TDK 1: $1.39 1,685In Stock	Mfr. Part No. B72220S0111K101 Mouser Part No 871-B72220S111K101	TDK	Varistors 115VAC 10% 20mm StandarD Learn More about TDK epcosvaristors	Datasheet	1,685In Stock	$1.39 $0.903 $0.744 $0.713 View $0.675 $0.654 $0.638	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 14VAC 10% 20mm AEC-Q200 B72220S1140K102 TDK 1: $3.85 331In Stock	Mfr. Part No. B72220S1140K102 Mouser Part No 871-B72220S1140K102	TDK	Varistors 14VAC 10% 20mm AEC-Q200 Learn More about TDK automotive multilayer varistors	Datasheet	331In Stock	$3.85 $2.87 $2.62 $2.37 $1.99	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
Varistors 140VAC 10% 20mm StandarD B72220S0141K101 TDK 1: $1.39 2,862In Stock	Mfr. Part No. B72220S0141K101 Mouser Part No 871-B72220S141K101	TDK	Varistors 140VAC 10% 20mm StandarD Learn More about TDK epcosvaristors	Datasheet	2,862In Stock	$1.39 $0.903 $0.744 $0.713 View $0.675 $0.664 $0.627 $0.551 $0.549	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 B72220S151K151 TDK 1: $1.50 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 $1.50 $0.976 $0.806 $0.772 Reel $0.711 View $0.738 $0.691 $0.684	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: $1.39 1,151In Stock	Mfr. Part No. B72220S0170K101 Mouser Part No 871-B72220S170K101	TDK	Varistors 17VAC 10% 20mm StandarD Learn More about TDK epcosvaristors	Datasheet	1,151In Stock	$1.39 $0.903 $0.744 $0.713 View $0.688 $0.654 $0.627 $0.568	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 20VAC 10% 20mm StandarD B72220S0200K101 TDK 1: $1.47 2,592In Stock 7,500Expected 28/12/2026	Mfr. Part No. B72220S0200K101 Mouser Part No 871-B72220S200K101	TDK	Varistors 20VAC 10% 20mm StandarD Learn More about TDK epcosvaristors	Datasheet	2,592In Stock 7,500Expected 28/12/2026	$1.47 $0.957 $0.787 $0.755 View $0.699 $0.627 $0.585	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 130VAC 10% 20mm AdvanceD B72220S2131K101 TDK 1: $1.63 1,457In Stock 16,500Expected 4/1/2027	Mfr. Part No. B72220S2131K101 Mouser Part No 871-B72220S2131K101	TDK	Varistors 130VAC 10% 20mm AdvanceD Learn More about TDK epcosvaristors	Datasheet	1,457In Stock 16,500Expected 4/1/2027	$1.63 $1.06 $0.812 $0.755 View $0.605 $0.598 $0.442 $0.438	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
Varistors 150VAC 10% 20mm AdvanceD B72220S2151K101 TDK 1: $1.63 1,352In Stock	Mfr. Part No. B72220S2151K101 Mouser Part No 871-B72220S2151K101	TDK	Varistors 150VAC 10% 20mm AdvanceD Learn More about TDK epcosvaristors	Datasheet	1,352In Stock	$1.63 $1.07 $0.883 $0.847 View $0.802 $0.779 $0.752 $0.707	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 175VAC 10% 20mm AdvanceD B72220S2171K101 TDK 1: $1.41 2,795In Stock	Mfr. Part No. B72220S2171K101 Mouser Part No 871-B72220S2171K101	TDK	Varistors 175VAC 10% 20mm AdvanceD Learn More about TDK epcosvaristors	Datasheet	2,795In Stock	$1.41 $0.914 $0.753 $0.721 View $0.696 $0.656 $0.641	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
Varistors 230VAC 10% 20mm AdvanceD B72220S2231K101 TDK 1: $1.50 599In Stock	Mfr. Part No. B72220S2231K101 Mouser Part No 871-B72220S2231K101	TDK	Varistors 230VAC 10% 20mm AdvanceD Learn More about TDK epcosvaristors	Datasheet	599In Stock	$1.50 $0.968 $0.798 $0.764 View $0.738 $0.702 $0.646	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: $1.20 3,370In Stock	Mfr. Part No. B72220S0231K101 Mouser Part No 871-B72220S231K101	TDK	Varistors 230VAC 10% 20mm StandarD Learn More about TDK epcosvaristors	Datasheet	3,370In Stock	$1.20 $0.774 $0.634 $0.607 View $0.585 $0.537 $0.532 $0.53	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 B72220S2381K501 TDK 1: $1.41 1,446In Stock	Mfr. Part No. B72220S2381K501 Mouser Part No 871-B72220S2381K501	TDK	Varistors 385VAC 10% 20mm AdvanceD Learn More about TDK epcosvaristors	Datasheet	1,446In Stock	$1.41 $0.914 $0.753 $0.721 View $0.669 $0.651 $0.643 $0.608 $0.607	Min.: 1 Mult.: 1	Disc Varistor, AdvanceD 20mm	MOVs	PCB Mount	Radial		380 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: $1.84 1,382In Stock 1,600Expected 16/12/2026	Mfr. Part No. B72220S2461K101 Mouser Part No 871-B72220S2461K101	TDK	Varistors 460VAC 10% 20mm AdvanceD Learn More about TDK epcosvaristors	Datasheet	1,382In Stock 1,600Expected 16/12/2026	$1.84 $1.21 $1.07 $1.00 View $0.963 $0.895 $0.874 $0.866 $0.794	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 25VAC 10% 20mm StandarD B72220S0250K101 TDK 1: $0.748 2,945In Stock 7,500Expected 16/12/2026	Mfr. Part No. B72220S0250K101 Mouser Part No 871-B72220S250K101	TDK	Varistors 25VAC 10% 20mm StandarD Learn More about TDK epcosvaristors	Datasheet	2,945In Stock 7,500Expected 16/12/2026	$0.748 $0.627 $0.536	Min.: 1 Mult.: 1	Disc Varistor, StandarD 20mm	MOVs	PCB Mount	Radial		25 VAC	31 VDC	39 V	77 V	20 mm	2 kA	22 J	11.1 nF	- 40 C	+ 105 C		Bulk
Varistors 250VAC 10% 20mm StandarD B72220S0251K101 TDK 1: $1.20 10,662In Stock	Mfr. Part No. B72220S0251K101 Mouser Part No 871-B72220S251K101	TDK	Varistors 250VAC 10% 20mm StandarD Learn More about TDK epcosvaristors	Datasheet	10,662In Stock	$1.20 $0.774 $0.634 $0.607 View $0.585 $0.549 $0.532 $0.53 $0.411	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 550VAC 10% 20mm AdvanceD B72220S2551K101 TDK 1: $2.62 6,994In Stock 8,000Expected 16/12/2026	Mfr. Part No. B72220S2551K101 Mouser Part No 871-B72220S2551K101	TDK	Varistors 550VAC 10% 20mm AdvanceD Learn More about TDK epcosvaristors	Datasheet	6,994In Stock 8,000Expected 16/12/2026	$2.62 $1.75 $1.56 $1.48 View $1.43 $1.34 $1.31 $1.28 $1.03	Min.: 1 Mult.: 1	Disc Varistor, AdvanceD 20mm	MOVs	PCB Mount	Radial		550 VAC	745 VDC	910 V	1.5 kV	21.5 mm	10 kA	360 J	320 pF	- 40 C	+ 105 C		Bulk
Varistors 625VAC 10% 20mm AdvanceD B72220S2621K101 TDK 1: $2.77 339In Stock 2,400Expected 4/1/2027	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 4/1/2027	$2.77 $1.86 $1.66 $1.56 View $1.51 $1.29 $1.28 $1.13	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 300VAC 10% 20mm StandarD B72220S0301K101 TDK 1: $0.653 14In Stock 71,400On Order	Mfr. Part No. B72220S0301K101 Mouser Part No 871-B72220S301K101	TDK	Varistors 300VAC 10% 20mm StandarD Learn More about TDK epcosvaristors	Datasheet	14In Stock 71,400On Order On Order Ship Dates Mfr. No: B72220S0301K101 Stock: 14 Can Dispatch Immediately On Order: 42,000 Expected 14/12/2026 29,400 Expected 16/12/2026 Factory Lead Time: 8 Weeks	$0.653 $0.407 $0.326 $0.311 View $0.299 $0.279 $0.271	Min.: 1 Mult.: 1	Disc Varistor, StandarD 20mm	MOVs	PCB Mount	Radial		300 VAC	385 VDC	470 V	775 V	20 mm	8 kA	173 J	580 pF	- 40 C	+ 105 C		Bulk
Varistors 150VAC 10% 20mm SuperioR B72220S3151K101 TDK 1: $3.02 1,377In Stock	Mfr. Part No. B72220S3151K101 Mouser Part No 871-B72220S3151K101	TDK	Varistors 150VAC 10% 20mm SuperioR Learn More about TDK epcosvaristors	Datasheet	1,377In Stock	$3.02 $2.04 $1.82 $1.71 View $1.65 $1.60 $1.43 $1.41 $1.28	Min.: 1 Mult.: 1	Disc Varistor, Multi-Pulse SuperioR 20mm	MOVs	PCB Mount	Radial		150 VAC	200 VDC	240 V	395 V	22.5 mm	12 kA	150 J	1.16 nF	- 40 C	+ 105 C		Bulk
Varistors 250VAC 10% 20mm SuperioR B72220S3251K101 TDK 1: $2.46 249In Stock	Mfr. Part No. B72220S3251K101 Mouser Part No 871-B72220S3251K101	TDK	Varistors 250VAC 10% 20mm SuperioR Learn More about TDK epcosvaristors	Datasheet	249In Stock	$2.46 $1.97 $1.75 $1.66 View $1.48 $1.22 $1.20 $1.19 $1.07	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: $2.46 365In Stock 1,500On Order	Mfr. Part No. B72220S3301K101 Mouser Part No 871-B72220S3301K101	TDK	Varistors 300VAC 10% 20mm SuperioR Learn More about TDK epcosvaristors	Datasheet	365In Stock 1,500On Order	$2.46 $1.65 $1.47 $1.37 View $1.32 $1.22 $1.20 $1.19 $1.07	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: $2.60 108In Stock 3,000Expected 7/12/2026	Mfr. Part No. B72220S3321K101 Mouser Part No 871-B72220S3321K101	TDK	Varistors 320VAC 10% 20mm SuperioR Learn More about TDK epcosvaristors	Datasheet	108In Stock 3,000Expected 7/12/2026	$2.60 $1.74 $1.55 $1.46 View $1.40 $1.25 $1.21 $1.19	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 460VAC 10% 20mm StandarD B72220S0461K101 TDK 1: $1.66 2,196In Stock 4,800Expected 4/1/2027	Mfr. Part No. B72220S0461K101 Mouser Part No 871-B72220S461K101	TDK	Varistors 460VAC 10% 20mm StandarD Learn More about TDK epcosvaristors	Datasheet	2,196In Stock 4,800Expected 4/1/2027	$1.66 $1.08 $0.902 $0.801 View $0.715 $0.696 Quote	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