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ThermoFuse™ Varistors

TDK ThermoFuse™ Varistors feature a wide operating voltage range of 130V_RMS to 750V_RMS. These varistors are self-protected under abnormal overvoltage conditions and offer high-energy Advanced series E2. TDK ThermoFuse varistors include either leaded square varistor elements or leaded round varistor elements. These varistors are made of epoxy molding and are flame-retardant as per UL 94 V-0. The ThermoFuse varistors come with tinned copper wire and metal compound wire terminals. Typical applications include power meters, telecom, transient voltage surger suppressors (TVSS), 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	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 385VAC 10% 20mm AdvanceD Thermofused B72220T2381K105 TDK 1: 2,45 € 493In Stock	Mfr. Part No. B72220T2381K105 Mouser Part No 871-B72220T2381K105	TDK	Varistors 385VAC 10% 20mm AdvanceD Thermofused Learn More about TDK epcos t varistor	Datasheet	493In Stock	2,45 € 1,65 € 1,48 € 1,39 € View 1,26 € 1,06 € 1,04 € 1,01 €	Min.: 1 Mult.: 1	Thermo-fused Varistor, AdvanceD 20mm	MOVs	PCB Mount	Radial	385 VAC	505 VDC	620 V	1.025 kV		10 kA	248 J	600 pF	- 40 C	+ 105 C	Bulk
Varistors 510VAC 10% 20mm AdvanceD Thermofused B72220T2511K105 TDK 1: 3,39 € 1.534In Stock	Mfr. Part No. B72220T2511K105 Mouser Part No 871-B72220T2511K105	TDK	Varistors 510VAC 10% 20mm AdvanceD Thermofused Learn More about TDK epcos t varistor	Datasheet	1.534In Stock	3,39 € 2,14 € 1,96 € 1,67 € View 1,57 € 1,38 € 1,15 € 1,13 € 1,11 €	Min.: 1 Mult.: 1	Thermo-fused Varistor, AdvanceD 20mm		PCB Mount	Radial									- 40 C	+ 105 C	Bulk
Varistors 275V 14mm 2pin ThermoFuse Varistor B72214R2271K101 TDK 1: 1,41 € 451In Stock	Mfr. Part No. B72214R2271K101 Mouser Part No 871-B72214R2271K101	TDK	Varistors 275V 14mm 2pin ThermoFuse Varistor Learn More about TDK epcos nt thermofuse varistors	Datasheet	451In Stock	1,41 € 0,937 € 0,83 € 0,78 € View 0,75 € 0,714 € 0,694 € 0,683 €	Min.: 1 Mult.: 1	Thermo-fused Varistor 2-pin, AdvanceD 14mm	MOVs	PCB Mount	Radial	275 VAC	350 VDC	430 V	710 V	17 mm	6 kA	110 J	440 pF	- 40 C	+ 85 C	Bulk
Varistors 175VAC 10% 14mm AdvanceD Thermofused B72214T2171K105 TDK 1: 1,57 € 385In Stock	Mfr. Part No. B72214T2171K105 Mouser Part No 871-B72214T2171K105	TDK	Varistors 175VAC 10% 14mm AdvanceD Thermofused Learn More about TDK epcos t varistor	Datasheet	385In Stock	1,57 € 1,06 € 0,937 € 0,886 € View 0,848 € 0,799 € 0,778 € 0,771 €	Min.: 1 Mult.: 1	Thermo-fused Varistor, AdvanceD 14mm	MOVs	PCB Mount	Radial	175 VAC	225 VDC	270 V	455 V		6 kA	70 J	670 pF	- 40 C	+ 105 C	Bulk
Varistors 300VAC 10% 20mm 2-pin ThermoFuse B72220R2301K101 TDK 1: 1,73 € 941In Stock	Mfr. Part No. B72220R2301K101 Mouser Part No 871-B72220R2301K101	TDK	Varistors 300VAC 10% 20mm 2-pin ThermoFuse Learn More about TDK epcos nt thermofuse varistors	Datasheet	941In Stock	1,73 € 1,16 € 1,06 € 0,886 € View 0,869 € 0,857 €	Min.: 1 Mult.: 1	Thermo-fused Varistor 2-pin, AdvanceD 20mm	MOVs	PCB Mount	Radial	300 VAC	385 VDC	470 V	775 V	23 mm	10 kA	250 J	780 pF	- 40 C	+ 85 C	Bulk
Varistors 320VAC 10% 20mm 2-pin ThermoFuse B72220R2321K101 TDK 1: 1,73 € 664In Stock	Mfr. Part No. B72220R2321K101 Mouser Part No 871-B72220R2321K101	TDK	Varistors 320VAC 10% 20mm 2-pin ThermoFuse Learn More about TDK epcos nt thermofuse varistors	Datasheet	664In Stock	1,73 € 1,16 € 1,04 € 0,98 € View 0,869 € 0,851 € 0,832 € 0,83 €	Min.: 1 Mult.: 1	Thermo-fused Varistor 2-pin, AdvanceD 20mm	MOVs	PCB Mount	Radial	320 VAC	420 VDC	510 V	840 V	23 mm	10 kA	273 J	720 pF	- 40 C	+ 85 C	Bulk
Varistors 320VAC 10% 20mm AdvanceD Thermofused B72220T2321K105 TDK 1: 2,04 € 627In Stock 1.500Expected 11/4/2026	Mfr. Part No. B72220T2321K105 Mouser Part No 871-B72220T2321K105	TDK	Varistors 320VAC 10% 20mm AdvanceD Thermofused Learn More about TDK epcos t varistor	Datasheet	627In Stock 1.500Expected 11/4/2026	2,04 € 1,38 € 1,24 € 1,16 € View 1,13 € 1,07 € 1,05 € 1,02 € 1,01 €	Min.: 1 Mult.: 1	Thermo-fused Varistor, AdvanceD 20mm	MOVs	PCB Mount	Radial	320 VAC	420 VDC	510 V	840 V		10 kA	273 J	720 pF	- 40 C	+ 105 C	Bulk
Varistors 130VAC 10% 20mm 3-pin ThermoFuse B72220W2131K101 TDK 1: 2,10 € 580In Stock	Mfr. Part No. B72220W2131K101 Mouser Part No 871-B72220W2131K101	TDK	Varistors 130VAC 10% 20mm 3-pin ThermoFuse Learn More about TDK epcos nt thermofuse varistors	Datasheet	580In Stock	2,10 € 1,42 € 1,27 € 1,07 € View 1,06 € 1,01 €	Min.: 1 Mult.: 1	Thermo-fused Varistor 3-pin, AdvanceD 20mm	MOVs	PCB Mount	Radial	130 VAC	170 VDC	205 V	340 V	23 mm	10 kA	100 J	1.85 nF	- 40 C	+ 85 C	Bulk
Varistors 275VAC 10% 20mm 3-pin ThermoFuse B72220W2271K101 TDK 1: 1,81 € 560In Stock	Mfr. Part No. B72220W2271K101 Mouser Part No 871-B72220W2271K101	TDK	Varistors 275VAC 10% 20mm 3-pin ThermoFuse Learn More about TDK epcos nt thermofuse varistors	Datasheet	560In Stock	1,81 € 1,22 € 1,08 € 1,02 € View 0,972 € 0,937 € 0,912 € 0,894 €	Min.: 1 Mult.: 1	Thermo-fused Varistor 3-pin, AdvanceD 20mm	MOVs	PCB Mount	Radial	275 VAC	350 VDC	430 V	710 V	9.5 mm	10 kA	215 J	850 pF	- 40 C	+ 85 C	Bulk
Varistors 300V 14mm 2pin ThermoFuse Varistor B72214R2301K101 TDK 1: 1,49 € 3.000On Order	Mfr. Part No. B72214R2301K101 Mouser Part No 871-B72214R2301K101	TDK	Varistors 300V 14mm 2pin ThermoFuse Varistor Learn More about TDK epcos nt thermofuse varistors	Datasheet	3.000On Order On Order Ship Dates Mfr. No: B72214R2301K101 Stock: 0 On Order: 2.000 Expected 12/8/2026 1.000 Expected 12/14/2026 Factory Lead Time: 10 Weeks	1,49 € 0,998 € 0,886 € 0,826 € View 0,795 € 0,714 € 0,667 € 0,665 €	Min.: 1 Mult.: 1	Thermo-fused Varistor 2-pin, AdvanceD 14mm	MOVs	PCB Mount	Radial	300 VAC	385 VDC	470 V	775 V	17 mm	6 kA	125 J	400 pF	- 40 C	+ 85 C	Bulk
Varistors 150V 14mm 2pin ThermoFuse Varistor B72214R2151K101 TDK 1: 1,63 € 981Expected 1/8/2027	Mfr. Part No. B72214R2151K101 Mouser Part No 871-B72214R2151K101	TDK	Varistors 150V 14mm 2pin ThermoFuse Varistor Learn More about TDK epcos nt thermofuse varistors	Datasheet	981Expected 1/8/2027	1,63 € 1,09 € 0,972 € 0,92 € View 0,886 € 0,85 € 0,809 € 0,766 € 0,765 €	Min.: 1 Mult.: 1	Thermo-fused Varistor 2-pin, AdvanceD 14mm	MOVs	PCB Mount	Radial	150 VAC	200 VDC	240 V	395 V	17 mm	6 kA	60 J	750 pF	- 40 C	+ 85 C	Bulk
Varistors 320V 14mm 2pin ThermoFuse Varistor B72214R2321K101 TDK 1.000: 0,725 € Non-Stocked Lead-Time 10 Weeks	Mfr. Part No. B72214R2321K101 Mouser Part No 871-B72214R2321K101	TDK	Varistors 320V 14mm 2pin ThermoFuse Varistor Learn More about TDK epcos nt thermofuse varistors	Datasheet	Non-Stocked Lead-Time 10 Weeks	0,725 € 0,694 € 0,664 € 0,662 €	Min.: 1.000 Mult.: 1.000	Thermo-fused Varistor 2-pin, AdvanceD 14mm	MOVs	PCB Mount	Radial	320 VAC	420 VDC	510 V	840 V	17 mm	6 kA	136 J	370 pF	- 40 C	+ 85 C	Bulk
Varistors 150VAC 10% 14mm AdvanceD Thermofused B72214T2151K105 TDK 1: 2,41 € Non-Stocked Lead-Time 10 Weeks	Mfr. Part No. B72214T2151K105 Mouser Part No 871-B72214T2151K105	TDK	Varistors 150VAC 10% 14mm AdvanceD Thermofused Learn More about TDK epcos t varistor	Datasheet	Non-Stocked Lead-Time 10 Weeks	2,41 € 1,71 € 1,43 € 1,35 € View 1,21 € 1,01 € 0,972 €	Min.: 1 Mult.: 1	Thermo-fused Varistor, AdvanceD 14mm	MOVs	PCB Mount	Radial	150 VAC	200 VDC	240 V	395 V		6 kA	60 J	750 pF	- 40 C	+ 105 C	Bulk
Varistors 175VAC 10% 14mm AdvanceD Thermofused B72214T2171K106 TDK 1.960: 0,80 € Non-Stocked Lead-Time 10 Weeks	Mfr. Part No. B72214T2171K106 Mouser Part No 871-B72214T2171K106	TDK	Varistors 175VAC 10% 14mm AdvanceD Thermofused Learn More about TDK epcos t varistor	Datasheet	Non-Stocked Lead-Time 10 Weeks	0,80 €	Min.: 1.960 Mult.: 1.960	Thermo-fused Varistor, AdvanceD 14mm	MOVs	PCB Mount	Radial	175 VAC	225 VDC	270 V	455 V		6 kA	70 J	670 pF	- 40 C	+ 85 C	Bulk
Varistors 300VAC 10% 14mm AdvanceD Thermofused B72214T2301K106 TDK 1: 2,43 € Non-Stocked Lead-Time 10 Weeks	Mfr. Part No. B72214T2301K106 Mouser Part No 871-B72214T2301K106	TDK	Varistors 300VAC 10% 14mm AdvanceD Thermofused Learn More about TDK epcos t varistor	Datasheet	Non-Stocked Lead-Time 10 Weeks	2,43 € 1,53 € 1,16 € 1,08 € View 0,955 € 0,801 € 0,796 € 0,794 €	Min.: 1 Mult.: 1	Thermo-fused Varistor, AdvanceD 14mm	MOVs	PCB Mount	Radial	300 VAC	385 VDC	470 V	775 V		6 kA	125 J	400 pF	- 40 C	+ 85 C	Bulk
Varistors 300VAC 10% 14mm AdvanceD Thermofused B72214T2301K108 TDK 1.680: 0,80 € Non-Stocked Lead-Time 10 Weeks	Mfr. Part No. B72214T2301K108 Mouser Part No 871-B72214T2301K108	TDK	Varistors 300VAC 10% 14mm AdvanceD Thermofused Learn More about TDK epcos t varistor	Datasheet	Non-Stocked Lead-Time 10 Weeks	0,80 €	Min.: 1.680 Mult.: 1.680	Thermo-fused Varistor, AdvanceD 14mm	MOVs	PCB Mount	Radial	300 VAC	385 VDC	470 V	775 V		6 kA	125 J	400 pF	- 40 C	+ 85 C	Bulk
Varistors 320VAC 10% 14mm AdvanceD Thermofused B72214T2321K106 TDK 1.960: 0,614 € Non-Stocked Lead-Time 10 Weeks	Mfr. Part No. B72214T2321K106 Mouser Part No 871-B72214T2321K106	TDK	Varistors 320VAC 10% 14mm AdvanceD Thermofused Learn More about TDK epcos t varistor	Datasheet	Non-Stocked Lead-Time 10 Weeks	0,614 € 0,612 € 0,611 €	Min.: 1.960 Mult.: 1.960	Thermo-fused Varistor, AdvanceD 14mm	MOVs	PCB Mount	Radial	320 VAC	420 VDC	510 V	840 V		6 kA	136 J	370 pF	- 40 C	+ 85 C	Bulk
Varistors 320VAC 10% 14mm 3-pin ThermoFuse B72214W2321K101 TDK 1: 1,57 € Non-Stocked Lead-Time 10 Weeks	Mfr. Part No. B72214W2321K101 Mouser Part No 871-B72214W2321K101	TDK	Varistors 320VAC 10% 14mm 3-pin ThermoFuse Learn More about TDK epcos nt thermofuse varistors	Datasheet	Non-Stocked Lead-Time 10 Weeks	1,57 € 1,04 € 0,929 € 0,869 € View 0,836 € 0,801 € 0,774 € 0,743 € 0,742 €	Min.: 1 Mult.: 1	Thermo-fused Varistor 3-pin, AdvanceD 14mm	MOVs	PCB Mount	Radial	320 VAC	420 VDC	510 V	840 V	17 mm	6 kA	136 J	370 pF	- 40 C	+ 85 C	Bulk
Varistors 380VAC 10% 14mm 3-pin ThermoFuse B72214W2381K101 TDK 1: 1,57 € Non-Stocked Lead-Time 10 Weeks	Mfr. Part No. B72214W2381K101 Mouser Part No 871-B72214W2381K101	TDK	Varistors 380VAC 10% 14mm 3-pin ThermoFuse Learn More about TDK epcos nt thermofuse varistors	Datasheet	Non-Stocked Lead-Time 10 Weeks	1,57 € 1,04 € 0,929 € 0,869 € View 0,836 € 0,761 € 0,748 € 0,699 € 0,697 €	Min.: 1 Mult.: 1	Thermo-fused Varistor 3-pin, AdvanceD 14mm	MOVs	PCB Mount	Radial	385 VAC	505 VDC	620 V	1.025 kV	17 mm	6 kA	136 J	315 pF	- 40 C	+ 85 C	Bulk
Varistors 130VAC 10% 20mm 2-pin ThermoFuse B72220R2131K101 TDK 750: 1,05 € Non-Stocked Lead-Time 10 Weeks	Mfr. Part No. B72220R2131K101 Mouser Part No 871-B72220R2131K101	TDK	Varistors 130VAC 10% 20mm 2-pin ThermoFuse Learn More about TDK epcos nt thermofuse varistors	Datasheet	Non-Stocked Lead-Time 10 Weeks	1,05 € 1,02 € 1,01 €	Min.: 750 Mult.: 750	Thermo-fused Varistor 2-pin, AdvanceD 20mm	MOVs	PCB Mount	Radial	130 VAC	170 VDC	205 V	340 V	23 mm	10 kA	100 J	1.85 nF	- 40 C	+ 85 C	Bulk
Varistors 150VAC 10% 20mm 2-pin ThermoFuse B72220R2151K101 TDK 750: 1,03 € Non-Stocked Lead-Time 10 Weeks	Mfr. Part No. B72220R2151K101 Mouser Part No 871-B72220R2151K101	TDK	Varistors 150VAC 10% 20mm 2-pin ThermoFuse Learn More about TDK epcos nt thermofuse varistors	Datasheet	Non-Stocked Lead-Time 10 Weeks	1,03 € 1,01 € 0,989 €	Min.: 750 Mult.: 750	Thermo-fused Varistor 2-pin, AdvanceD 20mm	MOVs	PCB Mount	Radial	150 VAC	200 VDC	240 V	395 V	23 mm	10 kA	120 J	1.55 nF	- 40 C	+ 85 C	Bulk
Varistors 250VAC 10% 20mm 2-pin ThermoFuse B72220R2251K101 TDK 750: 0,946 € Non-Stocked Lead-Time 10 Weeks	Mfr. Part No. B72220R2251K101 Mouser Part No 871-B72220R2251K101	TDK	Varistors 250VAC 10% 20mm 2-pin ThermoFuse Learn More about TDK epcos nt thermofuse varistors	Datasheet	Non-Stocked Lead-Time 10 Weeks	0,946 € 0,92 € 0,903 €	Min.: 750 Mult.: 750	Thermo-fused Varistor 2-pin, AdvanceD 20mm	MOVs	PCB Mount	Radial	250 VAC	320 VDC	390 V	650 V	23 mm	10 kA	195 J	940 pF	- 40 C	+ 85 C	Bulk
Varistors 275VAC 10% 20mm 2-pin ThermoFuse B72220R2271K101 TDK 1: 1,73 € Non-Stocked Lead-Time 10 Weeks	Mfr. Part No. B72220R2271K101 Mouser Part No 871-B72220R2271K101	TDK	Varistors 275VAC 10% 20mm 2-pin ThermoFuse Learn More about TDK epcos nt thermofuse varistors	Datasheet	Non-Stocked Lead-Time 10 Weeks	1,73 € 1,16 € 1,04 € 0,98 € View 0,929 € 0,886 € 0,86 € 0,857 €	Min.: 1 Mult.: 1	Thermo-fused Varistor 2-pin, AdvanceD 20mm	MOVs	PCB Mount	Radial	275 VAC	350 VDC	430 V	710 V	23 mm	10 kA	215 J	850 pF	- 40 C	+ 85 C	Bulk
Varistors 50VAC 10% 20mm ThermoFuse B72220T0500K101 TDK 1.500: 1,64 € Non-Stocked Lead-Time 8 Weeks	Mfr. Part No. B72220T0500K101 Mouser Part No 871-B72220T0500K101	TDK	Varistors 50VAC 10% 20mm ThermoFuse Learn More about TDK epcos t varistor	Datasheet	Non-Stocked Lead-Time 8 Weeks	1,64 € 1,61 €	Min.: 1.500 Mult.: 1.500	Thermo-fused Varistor,StandarD 20mm	MOVs	PCB Mount	Radial	50 VAC				20 mm				- 40 C	+ 85 C	Bulk
Varistors 50VAC 10% 20mm ThermoFuse B72220T0500K901 TDK 1.500: 1,83 € Non-Stocked Lead-Time 8 Weeks	Mfr. Part No. B72220T0500K901 Mouser Part No 871-B72220T0500K901	TDK	Varistors 50VAC 10% 20mm ThermoFuse Learn More about TDK epcos t varistor	Datasheet	Non-Stocked Lead-Time 8 Weeks	1,83 € 1,80 €	Min.: 1.500 Mult.: 1.500	Thermo-fused Varistor,StandarD 20mm	MOVs	PCB Mount	Radial	50 VAC				20 mm				- 40 C	+ 85 C	Bulk

ThermoFuse™ Varistors

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