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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 (JPY) 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 StandarD B72214S0321K101 TDK 1: ¥74.7 17,817In Stock	Mfr. Part # B72214S0321K101 Mouser Part # 871-B72214S321K101	TDK	Varistors 320VAC 10% 14mm StandarD Learn More about TDK epcosvaristors	Datasheet	17,817In Stock	¥74.7 ¥46.5 ¥37.4 ¥35.2 View ¥33.2 ¥32.6 ¥30.9 ¥30.7	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: ¥86.4 13,927In Stock	Mfr. Part # B72214S0350K101 Mouser Part # 871-B72214S350K101	TDK	Varistors 35VAC 10% 14mm StandarD Learn More about TDK epcosvaristors	Datasheet	13,927In Stock	¥86.4 ¥54.3 ¥43.7 ¥41.7 View ¥40 ¥37.9 ¥36.9 ¥36.4 ¥35.2	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 420VAC 10% 14mm StandarD B72214S0421K101 TDK 1: ¥117.9 7,220In Stock	Mfr. Part # B72214S0421K101 Mouser Part # 871-B72214S421K101	TDK	Varistors 420VAC 10% 14mm StandarD Learn More about TDK epcosvaristors	Datasheet	7,220In Stock	¥117.9 ¥74.7 ¥61 ¥58.1 View ¥56 ¥55.6 ¥52.7 ¥50.3 ¥44.2	Min.: 1 Mult.: 1	Disc Varistor,StandarD 14mm	MOVs	PCB Mount	Radial		420 VAC	560 VDC	680 V	1.12 kV	14 mm	4.5 kA	90 J	220 pF	- 40 C	+ 105 C		Bulk
Varistors 50VAC 10% 14mm StandarD B72214S0500K101 TDK 1: ¥86.4 14,296In Stock 23,988Expected 12/7/2026	Mfr. Part # B72214S0500K101 Mouser Part # 871-B72214S500K101	TDK	Varistors 50VAC 10% 14mm StandarD Learn More about TDK epcosvaristors	Datasheet	14,296In Stock 23,988Expected 12/7/2026	¥86.4 ¥54.3 ¥43.7 ¥39.7 View ¥36.2 ¥33.1 ¥31.1 ¥26.6 ¥25.1	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: ¥139.5 8,675In Stock	Mfr. Part # B72214S0681K101 Mouser Part # 871-B72214S681K101	TDK	Varistors 680VAC 10% 14mm StandarD Learn More about TDK epcosvaristors	Datasheet	8,675In Stock	¥139.5 ¥89.2 ¥72.9 ¥69.8 View ¥67.3 ¥63.8 ¥62.5 ¥62	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: ¥86.4 14,784In Stock	Mfr. Part # B72214S0750K101 Mouser Part # 871-B72214S750K101	TDK	Varistors 75VAC 10% 14mm StandarD Learn More about TDK epcosvaristors	Datasheet	14,784In Stock	¥86.4 ¥54.3 ¥43.7 ¥41.7 View ¥40 ¥37 ¥36.5 ¥36.4 ¥31.9	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 275VAC 10% 20mm SuperioR MP B72220P3271K101 TDK 1: ¥239.2 5,070In Stock	Mfr. Part # B72220P3271K101 Mouser Part # 871-B72220P3271K101	TDK	Varistors 275VAC 10% 20mm SuperioR MP Learn More about TDK epcosvaristors	Datasheet	5,070In Stock	¥239.2 ¥158.1 ¥140 ¥131.6 View ¥126.4 ¥112.9	Min.: 1 Mult.: 1	Disc Varistor, Multi-Pulse SuperioR 20mm	MOVs	PCB Mount	Radial		275 VAC	350 VDC	430 V	710 V	22.5 mm	12 kA	280 J	1.15 nF	- 40 C	+ 105 C		Bulk
Varistors 300VAC 10% 20mm SuperioR MP B72220P3301K101 TDK 1: ¥239.2 2,548In Stock	Mfr. Part # B72220P3301K101 Mouser Part # 871-B72220P3301K101	TDK	Varistors 300VAC 10% 20mm SuperioR MP Learn More about TDK epcosvaristors	Datasheet	2,548In Stock	¥239.2 ¥158.1 ¥140 ¥131.6 View ¥126.4 ¥119.9 ¥115.1 ¥112.9 ¥100.5	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: ¥279 11,029In Stock	Mfr. Part # B72220P3421K101 Mouser Part # 871-B72220P3421K101	TDK	Varistors 420VAC 10% 20mm SuperioR MP Learn More about TDK epcosvaristors	Datasheet	11,029In Stock	¥279 ¥186 ¥165.3 ¥155.3 View ¥149.5 ¥140.5 ¥136.7 ¥135.4	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: ¥323.9 2,550In Stock	Mfr. Part # B72220Q0131K101 Mouser Part # 871-B72220Q0131K101	TDK	Varistors 130VAC 10% 20mm EnergetiQ Learn More about TDK epcosvaristors	Datasheet	2,550In Stock	¥323.9 ¥217.6 ¥192.7 ¥182.7 View ¥176.1 ¥165.3 ¥155.5	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: ¥279 2,017In Stock	Mfr. Part # B72220Q0271K101 Mouser Part # 871-B72220Q271K101	TDK	Varistors 275VAC 10% 20mm EnergetiQ Learn More about TDK epcosvaristors	Datasheet	2,017In Stock	¥279 ¥186 ¥164.4 ¥154.6 View ¥148.7 ¥143.7 ¥134.5	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: ¥594.6 3,711In Stock	Mfr. Part # B72220S0102K101 Mouser Part # 871-B72220S0102K101	TDK	Varistors 1000VAC 10% 20mm StandarD Learn More about TDK epcosvaristors	Datasheet	3,711In Stock	¥594.6 ¥448.5 ¥410.3 ¥370.4 View ¥350.5 ¥338.8 ¥320.6 ¥315.6	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: ¥272.4 2,676In Stock	Mfr. Part # B72220S0681K101 Mouser Part # 871-B72220S0681K101	TDK	Varistors 680VAC 10% 20mm StandarD Learn More about TDK epcosvaristors	Datasheet	2,676In Stock	¥272.4 ¥181 ¥160.6 ¥151 View ¥145.2 ¥135.7 ¥132.5 ¥131.1 ¥130.9	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: ¥470.1 1,474In Stock	Mfr. Part # B72220S1250K102 Mouser Part # 871-B72220S1250K102	TDK	Varistors 25VAC 10% 20mm AEC-Q200 Learn More about TDK automotive multilayer varistors	Datasheet	1,474In Stock	¥470.1 ¥350.5 ¥320.6 ¥289 View ¥272.4 ¥262.4 ¥250.8 ¥242.5	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: ¥470.1 2,394In Stock	Mfr. Part # B72220S1300K102 Mouser Part # 871-B72220S1300K102	TDK	Varistors 30VAC 10% 20mm AEC-Q200 Learn More about TDK automotive multilayer varistors	Datasheet	2,394In Stock	¥470.1 ¥350.5 ¥320.6 ¥289 View ¥272.4 ¥262.4 ¥250.8 ¥242.5	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 150VAC 10% 20mm StandarD B72220S0151K101 TDK 1: ¥204.3 4,574In Stock 2,177Expected 1/4/2027	Mfr. Part # B72220S0151K101 Mouser Part # 871-B72220S151K101	TDK	Varistors 150VAC 10% 20mm StandarD Learn More about TDK epcosvaristors	Datasheet	4,574In Stock 2,177Expected 1/4/2027	¥204.3 ¥132.2 ¥96.3 ¥88.7 View ¥85.5 ¥81.2 ¥77.1 ¥76.6	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 175VAC 10% 20mm StandarD B72220S0171K101 TDK 1: ¥146.2 11,580In Stock	Mfr. Part # B72220S0171K101 Mouser Part # 871-B72220S171K101	TDK	Varistors 175VAC 10% 20mm StandarD Learn More about TDK epcosvaristors	Datasheet	11,580In Stock	¥146.2 ¥94.5 ¥77.4 ¥74.1 View ¥71.4 ¥67.1 ¥65.6	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 250VAC 10% 20mm AdvanceD B72220S2251K101 TDK 1: ¥172.7 3,281In Stock 7,500Expected 1/6/2027	Mfr. Part # B72220S2251K101 Mouser Part # 871-B72220S2251K101	TDK	Varistors 250VAC 10% 20mm AdvanceD Learn More about TDK epcosvaristors	Datasheet	3,281In Stock 7,500Expected 1/6/2027	¥172.7 ¥111.6 ¥92 ¥88 View ¥83.2 ¥81.1 ¥78.9	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: ¥172.7 10,744In Stock	Mfr. Part # B72220S2271K101 Mouser Part # 871-B72220S2271K101	TDK	Varistors 275VAC 10% 20mm AdvanceD Learn More about TDK epcosvaristors	Datasheet	10,744In Stock	¥172.7 ¥111.6 ¥92 ¥85.4 View ¥81.7 ¥80.1 ¥78.4 ¥78.2	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: ¥93 9,636In Stock 16,800Expected 12/4/2026	Mfr. Part # B72220S2301K101 Mouser Part # 871-B72220S2301K101	TDK	Varistors 300VAC 10% 20mm AdvanceD Learn More about TDK epcosvaristors	Datasheet	9,636In Stock 16,800Expected 12/4/2026	¥93 ¥77.7 ¥66.3	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 385VAC 10% 20mm AdvanceD B72220S2381K101 TDK 1: ¥182.7 8,110In Stock	Mfr. Part # B72220S2381K101 Mouser Part # 871-B72220S2381K101	TDK	Varistors 385VAC 10% 20mm AdvanceD Learn More about TDK epcosvaristors	Datasheet	8,110In Stock	¥182.7 ¥118.3 ¥97.5 ¥93.3 View ¥85.2 ¥83.2 ¥80.9 ¥74.6 ¥74.2	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 420VAC 10% 20mm AdvanceD B72220S2421K101 TDK 1: ¥224.2 4,385In Stock	Mfr. Part # B72220S2421K101 Mouser Part # 871-B72220S2421K101	TDK	Varistors 420VAC 10% 20mm AdvanceD Learn More about TDK epcosvaristors	Datasheet	4,385In Stock	¥224.2 ¥147.3 ¥130.4 ¥122.4 View ¥117.6 ¥111.3 ¥106.8 ¥105.8 ¥97.2	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
Varistors 510VAC 10% 20mm AdvanceD B72220S2511K101 TDK 1: ¥320.6 10,092In Stock	Mfr. Part # B72220S2511K101 Mouser Part # 871-B72220S2511K101	TDK	Varistors 510VAC 10% 20mm AdvanceD Learn More about TDK epcosvaristors	Datasheet	10,092In Stock	¥320.6 ¥214.3 ¥191 ¥181 View ¥174.4 ¥161.9 ¥158.3 ¥156.8 ¥156.5	Min.: 1 Mult.: 1	Disc Varistor, AdvanceD 20mm	MOVs	PCB Mount	Radial		510 VAC	670 VDC	820 V	1.355 kV	21.5 mm	10 kA	325 J	340 pF	- 40 C	+ 105 C		Bulk
Varistors 275VAC 10% 20mm StandarD B72220S0271K101 TDK 1: ¥79.7 32,698In Stock	Mfr. Part # B72220S0271K101 Mouser Part # 871-B72220S271K101	TDK	Varistors 275VAC 10% 20mm StandarD Learn More about TDK epcosvaristors	Datasheet	32,698In Stock	¥79.7 ¥49.7 ¥39.9 ¥38 View ¥36.5 ¥35.9 ¥34.5 ¥33.9	Min.: 1 Mult.: 1	Disc Varistor, StandarD 20mm	MOVs	PCB Mount	Radial		275 VAC	350 VDC	430 V	710 V	20 mm	8 kA	151 J	630 pF	- 40 C	+ 105 C		Bulk
Varistors 30VAC 10% 20mm StandarD B72220S0300K101 TDK 1: ¥169.4 11,754In Stock	Mfr. Part # B72220S0300K101 Mouser Part # 871-B72220S300K101	TDK	Varistors 30VAC 10% 20mm StandarD Learn More about TDK epcosvaristors	Datasheet	11,754In Stock	¥169.4 ¥110.3 ¥90.9 ¥87 View ¥83.9 ¥79.1 ¥77.9 ¥76.6 ¥71.3	Min.: 1 Mult.: 1	Disc Varistor, StandarD 20mm	MOVs	PCB Mount	Radial		30 VAC	38 VDC	47 V	93 V	20 mm	2 kA	26 J	9.35 nF	- 40 C	+ 105 C		Bulk