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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 (GBP) 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% 14mm AdvanceD B72214S2321K101 TDK 1: £0.421 11,820In Stock	Mfr. Part No. B72214S2321K101 Mouser Part No 871-B72214S2321K101	TDK	Varistors 320VAC 10% 14mm AdvanceD Learn More about TDK epcosvaristors	Datasheet	11,820In Stock	£0.421 £0.264 £0.212 £0.203 View £0.195 £0.186 £0.175 £0.17 £0.166	Min.: 1 Mult.: 1	Disc Varistor, AdvanceD 14mm	MOVs	PCB Mount	Radial		320 VAC	420 VDC	510 V	840 V	10 mm	6 kA	136 J	280 pF	- 40 C	+ 105 C		Bulk
Varistors 460VAC 10% 14mm AdvanceD B72214S2461K101 TDK 1: £0.623 4,411In Stock	Mfr. Part No. B72214S2461K101 Mouser Part No 871-B72214S2461K101	TDK	Varistors 460VAC 10% 14mm AdvanceD Learn More about TDK epcosvaristors	Datasheet	4,411In Stock	£0.623 £0.40 £0.327 £0.313 View £0.301 £0.283 £0.276 £0.272	Min.: 1 Mult.: 1	Disc Varistor, AdvanceD 14mm	MOVs	PCB Mount	Radial		460 VAC	615 VDC	750 V	1.24 kV	15.5 mm	5 kA	150 J	200 pF	- 40 C	+ 105 C		Bulk
Varistors 25VAC 10% 14mm StandarD B72214S0250K101 TDK 1: £0.39 18,147In Stock	Mfr. Part No. B72214S0250K101 Mouser Part No 871-B72214S250K101	TDK	Varistors 25VAC 10% 14mm StandarD Learn More about TDK epcosvaristors	Datasheet	18,147In Stock	£0.39 £0.245 £0.197 £0.189 View £0.181 £0.18 £0.178 £0.168 £0.147	Min.: 1 Mult.: 1	Disc Varistor,StandarD 14mm	MOVs	PCB Mount	Radial		25 VAC	31 VDC	39 V	77 V	14 mm	1 kA	7 J	5.85 nF	- 40 C	+ 105 C		Bulk
Varistors 275VAC 10% 14mm StandarD B72214S0271K101 TDK 1: £0.21 55,196In Stock 42,000Expected 07/12/2026	Mfr. Part No. B72214S0271K101 Mouser Part No 871-B72214S271K101	TDK	Varistors 275VAC 10% 14mm StandarD Learn More about TDK epcosvaristors	Datasheet	55,196In Stock 42,000Expected 07/12/2026	£0.21 £0.128 £0.101 £0.096 View £0.092 £0.086 £0.084 £0.083	Min.: 1 Mult.: 1	Disc Varistor,StandarD 14mm	MOVs	PCB Mount	Radial		275 VAC	350 VDC	430 V	710 V	14 mm	4.5 kA	71 J	440 pF	- 40 C	+ 105 C		Bulk
Varistors 30VAC 10% 14mm StandarD B72214S0300K101 TDK 1: £0.413 14,931In Stock 30,000Expected 16/12/2026	Mfr. Part No. B72214S0300K101 Mouser Part No 871-B72214S300K101	TDK	Varistors 30VAC 10% 14mm StandarD Learn More about TDK epcosvaristors	Datasheet	14,931In Stock 30,000Expected 16/12/2026	£0.413 £0.26 £0.21 £0.20 View £0.191 £0.183 £0.175 £0.163 £0.157	Min.: 1 Mult.: 1	Disc Varistor,StandarD 14mm	MOVs	PCB Mount	Radial		30 VAC	38 VDC	47 V	93 V	14 mm	1 kA	9 J	4.95 nF	- 40 C	+ 105 C		Bulk
Varistors 300VAC 10% 14mm StandarD B72214S0301K101 TDK 1: £0.338 31,271In Stock	Mfr. Part No. B72214S0301K101 Mouser Part No 871-B72214S301K101	TDK	Varistors 300VAC 10% 14mm StandarD Learn More about TDK epcosvaristors	Datasheet	31,271In Stock	£0.338 £0.21 £0.169 £0.161 View £0.154 £0.148 £0.142	Min.: 1 Mult.: 1	Disc Varistor,StandarD 14mm	MOVs	PCB Mount	Radial		300 VAC	385 VDC	470 V	775 V	14 mm	4.5 kA	76 J	300 pF	- 40 C	+ 105 C		Bulk
Varistors 320VAC 10% 14mm StandarD B72214S0321K101 TDK 1: £0.338 17,919In Stock	Mfr. Part No. B72214S0321K101 Mouser Part No 871-B72214S321K101	TDK	Varistors 320VAC 10% 14mm StandarD Learn More about TDK epcosvaristors	Datasheet	17,919In Stock	£0.338 £0.21 £0.169 £0.159 View £0.15 £0.148 £0.14 £0.139	Min.: 1 Mult.: 1	Disc Varistor,StandarD 14mm	MOVs	PCB Mount	Radial		320 VAC	420 VDC	510 V	840 V	14 mm	4.5 kA	84 J	280 pF	- 40 C	+ 105 C		Bulk
Varistors 35VAC 10% 14mm StandarD B72214S0350K101 TDK 1: £0.39 13,927In Stock	Mfr. Part No. B72214S0350K101 Mouser Part No 871-B72214S350K101	TDK	Varistors 35VAC 10% 14mm StandarD Learn More about TDK epcosvaristors	Datasheet	13,927In Stock	£0.39 £0.245 £0.197 £0.189 View £0.181 £0.171 £0.167 £0.164 £0.159	Min.: 1 Mult.: 1	Disc Varistor,StandarD 14mm	MOVs	PCB Mount	Radial		35 VAC	45 VDC	56 V	110 V	14 mm	1 kA	10 J	4.2 nF	- 40 C	+ 105 C		Bulk
Varistors 50VAC 10% 14mm StandarD B72214S0500K101 TDK 1: £0.39 14,456In Stock 23,988Expected 07/12/2026	Mfr. Part No. B72214S0500K101 Mouser Part No 871-B72214S500K101	TDK	Varistors 50VAC 10% 14mm StandarD Learn More about TDK epcosvaristors	Datasheet	14,456In Stock 23,988Expected 07/12/2026	£0.39 £0.245 £0.197 £0.177 View £0.154 £0.141 £0.107	Min.: 1 Mult.: 1	Disc Varistor,StandarD 14mm	MOVs	PCB Mount	Radial		50 VAC	65 VDC	82 V	135 V	14 mm	4.5 kA	15 J	1.8 nF	- 40 C	+ 105 C		Bulk
Varistors 680VAC 10% 14mm StandarD B72214S0681K101 TDK 1: £0.63 8,685In Stock	Mfr. Part No. B72214S0681K101 Mouser Part No 871-B72214S681K101	TDK	Varistors 680VAC 10% 14mm StandarD Learn More about TDK epcosvaristors	Datasheet	8,685In Stock	£0.63 £0.403 £0.33 £0.315 View £0.304 £0.288 £0.282 £0.28	Min.: 1 Mult.: 1	Disc Varistor,StandarD 14mm	MOVs	PCB Mount	Radial		680 VAC	895 VDC	1.1 kV	1.815 kV	14 mm	4.5 kA	140 J	180 pF	- 40 C	+ 105 C		Bulk
Varistors 75VAC 10% 14mm StandarD B72214S0750K101 TDK 1: £0.39 14,849In Stock	Mfr. Part No. B72214S0750K101 Mouser Part No 871-B72214S750K101	TDK	Varistors 75VAC 10% 14mm StandarD Learn More about TDK epcosvaristors	Datasheet	14,849In Stock	£0.39 £0.245 £0.197 £0.189 View £0.181 £0.171 £0.164 £0.147	Min.: 1 Mult.: 1	Disc Varistor,StandarD 14mm	MOVs	PCB Mount	Radial		75 VAC	100 VDC	120 V	200 V	14 mm	4.5 kA	20 J	1.37 nF	- 40 C	+ 105 C		Bulk
Varistors 300VAC 10% 20mm SuperioR MP B72220P3301K101 TDK 1: £1.08 2,578In Stock	Mfr. Part No. B72220P3301K101 Mouser Part No 871-B72220P3301K101	TDK	Varistors 300VAC 10% 20mm SuperioR MP Learn More about TDK epcosvaristors	Datasheet	2,578In Stock	£1.08 £0.715 £0.693	Min.: 1 Mult.: 1	Disc Varistor, Multi-Pulse SuperioR 20mm	MOVs	PCB Mount	Radial		300 VAC	385 VDC	470 V	775 V	22.5 mm	12 kA	305 J	1.05 nF	- 40 C	+ 105 C		Bulk
Varistors 420VAC 10% 20mm SuperioR MP B72220P3421K101 TDK 1: £1.26 11,029In Stock	Mfr. Part No. B72220P3421K101 Mouser Part No 871-B72220P3421K101	TDK	Varistors 420VAC 10% 20mm SuperioR MP Learn More about TDK epcosvaristors	Datasheet	11,029In Stock	£1.26 £0.841 £0.747 £0.702 View £0.676 £0.636 £0.618 £0.612	Min.: 1 Mult.: 1	Disc Varistor, Multi-Pulse SuperioR 20mm	MOVs	PCB Mount	Radial	2220 (5750 metric)	420 VAC	560 VDC	680 V	1.12 kV	20 mm	12 kA	405 J	730 pF	- 40 C	+ 105 C		Bulk
Varistors 130VAC 10% 20mm EnergetiQ B72220Q0131K101 TDK 1: £1.47 2,603In Stock	Mfr. Part No. B72220Q0131K101 Mouser Part No 871-B72220Q0131K101	TDK	Varistors 130VAC 10% 20mm EnergetiQ Learn More about TDK epcosvaristors	Datasheet	2,603In Stock	£1.47 £0.986 £0.871 £0.826 View £0.796 £0.747 £0.708 £0.707	Min.: 1 Mult.: 1	Disc Varistor, EnergetiQ 20mm	MOVs	PCB Mount	Radial		130 VAC	170 VDC	205 V	340 V	22.5 mm	15 kA	100 J	1.95 nF	- 40 C	+ 105 C		Bulk
Varistors 275VAC 10% 20mm EnergetiQ B72220Q0271K101 TDK 1: £1.26 3,567In Stock	Mfr. Part No. B72220Q0271K101 Mouser Part No 871-B72220Q271K101	TDK	Varistors 275VAC 10% 20mm EnergetiQ Learn More about TDK epcosvaristors	Datasheet	3,567In Stock	£1.26 £0.841 £0.743 £0.699 View £0.672 £0.62 £0.579 £0.577	Min.: 1 Mult.: 1	Disc Varistor, EnergetiQ 20mm	MOVs	PCB Mount	Radial		275 VAC	350 VDC	430 V	710 V	20 mm	15 kA	215 J	930 pF	- 40 C	+ 105 C		Bulk
Varistors 1000VAC 10% 20mm StandarD B72220S0102K101 TDK 1: £2.69 3,951In Stock	Mfr. Part No. B72220S0102K101 Mouser Part No 871-B72220S0102K101	TDK	Varistors 1000VAC 10% 20mm StandarD Learn More about TDK epcosvaristors	Datasheet	3,951In Stock	£2.69 £2.03 £1.85 £1.68 View £1.58 £1.53 £1.45 £1.42	Min.: 1 Mult.: 1	Disc Varistor, StandarD 20mm	MOVs	PCB Mount	Radial		1.1 kVAC	1.465 kVDC	1.8 kV	2.97 kV	21.5 mm	6.5 kA	410 J	210 pF	- 40 C	+ 105 C		Bulk
Varistors 680VAC 10% 20mm StandarD B72220S0681K101 TDK 1: £1.23 2,886In Stock	Mfr. Part No. B72220S0681K101 Mouser Part No 871-B72220S0681K101	TDK	Varistors 680VAC 10% 20mm StandarD Learn More about TDK epcosvaristors	Datasheet	2,886In Stock	£1.23 £0.818 £0.726 £0.683 View £0.625 £0.60 £0.592 £0.558	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
Varistors 25VAC 10% 20mm AEC-Q200 B72220S1250K102 TDK 1: £2.12 1,477In Stock	Mfr. Part No. B72220S1250K102 Mouser Part No 871-B72220S1250K102	TDK	Varistors 25VAC 10% 20mm AEC-Q200 Learn More about TDK automotive multilayer varistors	Datasheet	1,477In Stock	£2.12 £1.58 £1.45 £1.31 View £1.23 £1.19 £1.13 £1.10	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	11.1 nF	- 40 C	+ 105 C	AEC-Q100	Bulk
Varistors 30VAC 10% 20mm AEC-Q200 B72220S1300K102 TDK 1: £2.12 2,394In Stock	Mfr. Part No. B72220S1300K102 Mouser Part No 871-B72220S1300K102	TDK	Varistors 30VAC 10% 20mm AEC-Q200 Learn More about TDK automotive multilayer varistors	Datasheet	2,394In Stock	£2.12 £1.58 £1.45 £1.31 View £1.23 £1.19 £1.13 £1.10	Min.: 1 Mult.: 1	Disc Varistor, Auto-Grade 20mm	MOVs	PCB Mount	Radial		30 VAC	34 VDC	47 V	93 V	23 mm	2 kA	100 J	9.4 nF	- 40 C	+ 105 C	AEC-Q100	Bulk
Varistors 175VAC 10% 20mm StandarD B72220S0171K101 TDK 1: £0.661 11,602In Stock	Mfr. Part No. B72220S0171K101 Mouser Part No 871-B72220S171K101	TDK	Varistors 175VAC 10% 20mm StandarD Learn More about TDK epcosvaristors	Datasheet	11,602In Stock	£0.661 £0.427 £0.35 £0.335 View £0.323 £0.303 £0.297	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 175VAC 10% 20mm AdvanceD B72220S2171K101 TDK 1: £0.78 2,910In Stock	Mfr. Part No. B72220S2171K101 Mouser Part No 871-B72220S2171K101	TDK	Varistors 175VAC 10% 20mm AdvanceD Learn More about TDK epcosvaristors	Datasheet	2,910In Stock	£0.78 £0.505 £0.416 £0.398 View £0.384 £0.362 £0.354	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 250VAC 10% 20mm AdvanceD B72220S2251K101 TDK 1: £0.78 3,291In Stock 7,500Expected 06/01/2027	Mfr. Part No. B72220S2251K101 Mouser Part No 871-B72220S2251K101	TDK	Varistors 250VAC 10% 20mm AdvanceD Learn More about TDK epcosvaristors	Datasheet	3,291In Stock 7,500Expected 06/01/2027	£0.78 £0.505 £0.416 £0.398 View £0.376 £0.367 £0.357	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
Varistors 275VAC 10% 20mm AdvanceD B72220S2271K101 TDK 1: £0.78 10,754In Stock	Mfr. Part No. B72220S2271K101 Mouser Part No 871-B72220S2271K101	TDK	Varistors 275VAC 10% 20mm AdvanceD Learn More about TDK epcosvaristors	Datasheet	10,754In Stock	£0.78 £0.505 £0.416 £0.386 View £0.369 £0.362 £0.354	Min.: 1 Mult.: 1	Disc Varistor, AdvanceD 20mm	MOVs	PCB Mount	Radial		275 VAC	350 VDC	430 V	710 V	21.5 mm	1 kA	215 J	850 pF	- 40 C	+ 105 C		Bulk
Varistors 300VAC 10% 20mm AdvanceD B72220S2301K101 TDK 1: £0.517 9,801In Stock 16,800Expected 14/12/2026	Mfr. Part No. B72220S2301K101 Mouser Part No 871-B72220S2301K101	TDK	Varistors 300VAC 10% 20mm AdvanceD Learn More about TDK epcosvaristors	Datasheet	9,801In Stock 16,800Expected 14/12/2026	£0.517	Min.: 1 Mult.: 1	Disc Varistor, AdvanceD 20mm	MOVs	PCB Mount	Radial		470 VAC	385 VDC	470 V	775 V	21.5 mm	1 kA	250 J	780 pF	- 40 C	+ 105 C		Bulk
Varistors 420VAC 10% 20mm AdvanceD B72220S2421K101 TDK 1: £1.01 4,411In Stock	Mfr. Part No. B72220S2421K101 Mouser Part No 871-B72220S2421K101	TDK	Varistors 420VAC 10% 20mm AdvanceD Learn More about TDK epcosvaristors	Datasheet	4,411In Stock	£1.01 £0.666 £0.589 £0.553 View £0.532 £0.503 £0.483 £0.478 £0.439	Min.: 1 Mult.: 1	Disc Varistor, AdvanceD 20mm	MOVs	PCB Mount	Radial		420 VAC	560 VDC	680 V	1.12 kV	21.5 mm	10 kA	273 J	420 pF	- 40 C	+ 105 C		Bulk