Varistors – Mouser Chile

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T Series ThermoFuse™ Varistors

TDK T Series ThermoFuse™ Varistors are designed for a maximum operating voltage of 130V_RMS to 1000V_RMS. These 14mm and 20mm varistors withstand surge currents of up to 10A (8/20μs) and absorb up to 410J (2ms). The housed devices consist of a disk varistor in series with a thermally coupled fuse. If the varistor overheats, the thermal fuse activates and disconnects it from the power circuit. This overheating protection helps prevent fires, increases reliability, and protects the equipment. The housing and coating of the varistor are made of flame-retardant material. TDK T Series ThermoFuse Varistors feature three terminals. Two are connected to the active lines while the third terminal can be used for status signaling. Applications include household appliances, power supply units, inverters in solar power systems, lighting, communication and data systems, transient voltage surge suppressors (TVSS), and electronic metering.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (CLP) 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	Max Surge Current	Surge Energy Rating	Capacitance	Minimum Operating Temperature	Maximum Operating Temperature	Packaging
Varistors 300VAC 10% 14mm AdvanceD Thermofused B72214T2301K105 TDK 1: $2.085 2.067In Stock	Mfr. Part # B72214T2301K105 Mouser Part # 871-B72214T2301K105	TDK	Varistors 300VAC 10% 14mm AdvanceD Thermofused Learn More about TDK epcos t varistor	Datasheet	2.067In Stock	$2.085 $1.401 $1.242 $1.173 View $1.123 $1.007 $1.006 $982 $979	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	+ 105 C	Bulk
Varistors 385VAC 10% 20mm AdvanceD Thermofused B72220T2381K105 TDK 1: $3.247 493In Stock	Mfr. Part # B72220T2381K105 Mouser Part # 871-B72220T2381K105	TDK	Varistors 385VAC 10% 20mm AdvanceD Thermofused Learn More about TDK epcos t varistor	Datasheet	493In Stock	$3.247 $2.187 $1.960 $1.846 View $1.675 $1.401 $1.379 $1.344	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: $4.489 1.534In Stock	Mfr. Part # B72220T2511K105 Mouser Part # 871-B72220T2511K105	TDK	Varistors 510VAC 10% 20mm AdvanceD Thermofused Learn More about TDK epcos t varistor	Datasheet	1.534In Stock	$4.489 $2.837 $2.598 $2.210 View $2.073 $1.823 $1.527 $1.492 $1.470	Min.: 1 Mult.: 1	Thermo-fused Varistor, AdvanceD 20mm		PCB Mount	Radial								- 40 C	+ 105 C	Bulk
Varistors 175VAC 10% 14mm AdvanceD Thermofused B72214T2171K105 TDK 1: $2.085 385In Stock	Mfr. Part # B72214T2171K105 Mouser Part # 871-B72214T2171K105	TDK	Varistors 175VAC 10% 14mm AdvanceD Thermofused Learn More about TDK epcos t varistor	Datasheet	385In Stock	$2.085 $1.401 $1.242 $1.173 View $1.123 $1.058 $1.031 $1.021	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 320VAC 10% 14mm AdvanceD Thermofused B72214T2321K105 TDK 1: $2.085 869In Stock	Mfr. Part # B72214T2321K105 Mouser Part # 871-B72214T2321K105	TDK	Varistors 320VAC 10% 14mm AdvanceD Thermofused Learn More about TDK epcos t varistor	Datasheet	869In Stock	$2.085 $1.401 $1.242 $1.173 View $1.123 $1.058 $1.015 $970	Min.: 1 Mult.: 1	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	+ 105 C	Bulk
Varistors 320VAC 10% 20mm AdvanceD Thermofused B72220T2321K105 TDK 1: $2.700 627In Stock 1.500Expected 11/4/2026	Mfr. Part # B72220T2321K105 Mouser Part # 871-B72220T2321K105	TDK	Varistors 320VAC 10% 20mm AdvanceD Thermofused Learn More about TDK epcos t varistor	Datasheet	627In Stock 1.500Expected 11/4/2026	$2.700 $1.823 $1.641 $1.538 View $1.492 $1.413 $1.390 $1.356 Quote	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 385VAC 10% 14mm AdvanceD Thermofused B72214T2381K105 TDK 1: $2.085 1.959Expected 12/16/2026	Mfr. Part # B72214T2381K105 Mouser Part # 871-B72214T2381K105	TDK	Varistors 385VAC 10% 14mm AdvanceD Thermofused Learn More about TDK epcos t varistor	Datasheet	1.959Expected 12/16/2026	$2.085 $1.401 $1.242 $1.173 View $1.123 $1.058 $1.031 $1.021	Min.: 1 Mult.: 1	Thermo-fused Varistor, AdvanceD 14mm	MOVs	PCB Mount	Radial	385 VAC	505 VDC	620 V	910 V	6 kA	165 J	315 pF	- 40 C	+ 105 C	Bulk
Varistors 130VAC 10% 14mm AdvanceD Thermofused B72214T2131K105 TDK 1.960: $1.253 Non-Stocked Lead-Time 10 Weeks	Mfr. Part # B72214T2131K105 Mouser Part # 871-B72214T2131K105	TDK	Varistors 130VAC 10% 14mm AdvanceD Thermofused Learn More about TDK epcos t varistor	Datasheet	Non-Stocked Lead-Time 10 Weeks	$1.253	Min.: 1.960 Mult.: 1.960	Thermo-fused Varistor, AdvanceD 14mm		PCB Mount	Radial								- 40 C	+ 105 C	Bulk
Varistors 150VAC 10% 14mm AdvanceD Thermofused B72214T2151K105 TDK 1: $3.190 Non-Stocked Lead-Time 10 Weeks	Mfr. Part # B72214T2151K105 Mouser Part # 871-B72214T2151K105	TDK	Varistors 150VAC 10% 14mm AdvanceD Thermofused Learn More about TDK epcos t varistor	Datasheet	Non-Stocked Lead-Time 10 Weeks	$3.190 $2.267 $1.891 $1.789 View $1.606 $1.344 $1.287	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: $1.060 Non-Stocked Lead-Time 10 Weeks	Mfr. Part # B72214T2171K106 Mouser Part # 871-B72214T2171K106	TDK	Varistors 175VAC 10% 14mm AdvanceD Thermofused Learn More about TDK epcos t varistor	Datasheet	Non-Stocked Lead-Time 10 Weeks	$1.060	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 230VAC 10% 14mm AdvanceD Thermofused B72214T2231K105 TDK 1: $2.210 Non-Stocked Lead-Time 10 Weeks	Mfr. Part # B72214T2231K105 Mouser Part # 871-B72214T2231K105	TDK	Varistors 230VAC 10% 14mm AdvanceD Thermofused Learn More about TDK epcos t varistor	Datasheet	Non-Stocked Lead-Time 10 Weeks	$2.210 $1.481 $1.322 $1.242 View $1.196 $1.088 $1.049 $1.030 $1.022	Min.: 1 Mult.: 1	Thermo-fused Varistor, AdvanceD 14mm	MOVs	PCB Mount	Radial	230 VAC	300 VDC	360 V	595 V	6 kA	90 J	530 pF	- 40 C	+ 105 C	Bulk
Varistors 250VAC 10% 14mm AdvanceD Thermofused B72214T2251K105 TDK 1.960: $1.060 Non-Stocked Lead-Time 10 Weeks	Mfr. Part # B72214T2251K105 Mouser Part # 871-B72214T2251K105	TDK	Varistors 250VAC 10% 14mm AdvanceD Thermofused Learn More about TDK epcos t varistor	Datasheet	Non-Stocked Lead-Time 10 Weeks	$1.060	Min.: 1.960 Mult.: 1.960	Thermo-fused Varistor, AdvanceD 14mm		PCB Mount	Radial								- 40 C	+ 105 C	Bulk
Varistors 275VAC 10% 14mm AdvanceD Thermofused B72214T2271K105 TDK 1: $2.210 Non-Stocked Lead-Time 10 Weeks	Mfr. Part # B72214T2271K105 Mouser Part # 871-B72214T2271K105	TDK	Varistors 275VAC 10% 14mm AdvanceD Thermofused Learn More about TDK epcos t varistor	Datasheet	Non-Stocked Lead-Time 10 Weeks	$2.210 $1.481 $1.322 $1.242 View $1.196 $1.088 $1.049 $1.041	Min.: 1 Mult.: 1	Thermo-fused Varistor, AdvanceD 14mm	MOVs	PCB Mount	Radial	275 VAC	350 VDC	430 V	710 V	6 kA	110 J	440 pF	- 40 C	+ 105 C	Bulk
Varistors 300VAC 10% 14mm AdvanceD Thermofused B72214T2301K106 TDK 1: $3.213 Non-Stocked Lead-Time 10 Weeks	Mfr. Part # B72214T2301K106 Mouser Part # 871-B72214T2301K106	TDK	Varistors 300VAC 10% 14mm AdvanceD Thermofused Learn More about TDK epcos t varistor	Datasheet	Non-Stocked Lead-Time 10 Weeks	$3.213 $2.028 $1.538 $1.435 View $1.265 $1.061 $1.054 $1.052	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: $1.060 Non-Stocked Lead-Time 10 Weeks	Mfr. Part # B72214T2301K108 Mouser Part # 871-B72214T2301K108	TDK	Varistors 300VAC 10% 14mm AdvanceD Thermofused Learn More about TDK epcos t varistor	Datasheet	Non-Stocked Lead-Time 10 Weeks	$1.060	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: $813 Non-Stocked Lead-Time 10 Weeks	Mfr. Part # B72214T2321K106 Mouser Part # 871-B72214T2321K106	TDK	Varistors 320VAC 10% 14mm AdvanceD Thermofused Learn More about TDK epcos t varistor	Datasheet	Non-Stocked Lead-Time 10 Weeks	$813 $811 $810	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 350VAC 10% 14mm AdvanceD Thermofused B72214T2351K105 TDK 1.960: $1.060 Non-Stocked Lead-Time 10 Weeks	Mfr. Part # B72214T2351K105 Mouser Part # 871-B72214T2351K105	TDK	Varistors 350VAC 10% 14mm AdvanceD Thermofused Learn More about TDK epcos t varistor	Datasheet	Non-Stocked Lead-Time 10 Weeks	$1.060	Min.: 1.960 Mult.: 1.960	Thermo-fused Varistor, AdvanceD 14mm		PCB Mount	Radial								- 40 C	+ 105 C	Bulk
Varistors 420VAC 10% 14mm AdvanceD Thermofused B72214T2421K105 TDK 1: $3.213 Non-Stocked Lead-Time 10 Weeks	Mfr. Part # B72214T2421K105 Mouser Part # 871-B72214T2421K105	TDK	Varistors 420VAC 10% 14mm AdvanceD Thermofused Learn More about TDK epcos t varistor	Datasheet	Non-Stocked Lead-Time 10 Weeks	$3.213 $2.028 $1.538 $1.435 View $1.265 $1.061 $1.054 $1.052	Min.: 1 Mult.: 1	Thermo-fused Varistor, AdvanceD 14mm		PCB Mount	Radial								- 40 C	+ 105 C	Bulk
Varistors 1000VAC 10% 20mm ThermoFuse B72220T0102K105 TDK 1.260: $2.256 Non-Stocked Lead-Time 10 Weeks	Mfr. Part # B72220T0102K105 Mouser Part # 871-B72220T102K105	TDK	Varistors 1000VAC 10% 20mm ThermoFuse Learn More about TDK epcos t varistor	Datasheet	Non-Stocked Lead-Time 10 Weeks	$2.256 $2.222 $2.176	Min.: 1.260 Mult.: 1.260	Thermo-fused Varistor, AdvanceD 20mm		PCB Mount	Radial								- 40 C	+ 105 C	Bulk
Varistors 130VAC 10% 20mm AdvanceD Thermofused B72220T2131K105 TDK 1.500: $1.675 Non-Stocked Lead-Time 10 Weeks	Mfr. Part # B72220T2131K105 Mouser Part # 871-B72220T2131K105	TDK	Varistors 130VAC 10% 20mm AdvanceD Thermofused Learn More about TDK epcos t varistor	Datasheet	Non-Stocked Lead-Time 10 Weeks	$1.675 $1.663	Min.: 1.500 Mult.: 1.500	Thermo-fused Varistor, AdvanceD 20mm		PCB Mount	Radial								- 40 C	+ 105 C	Bulk
Varistors 150VAC 10% 20mm AdvanceD Thermofused B72220T2151K105 TDK 1: $3.315 Non-Stocked Lead-Time 10 Weeks	Mfr. Part # B72220T2151K105 Mouser Part # 871-B72220T2151K105	TDK	Varistors 150VAC 10% 20mm AdvanceD Thermofused Learn More about TDK epcos t varistor	Datasheet	Non-Stocked Lead-Time 10 Weeks	$3.315 $2.472 $2.267 $2.028 View $1.914 $1.857 $1.709 $1.698 $1.686	Min.: 1 Mult.: 1	Thermo-fused Varistor, AdvanceD 20mm	MOVs	PCB Mount	Radial	150 VAC	200 VDC	240 V	395 V	10 kA	120 J	1.55 nF	- 40 C	+ 105 C	Bulk
Varistors 175VAC 10% 20mm AdvanceD Thermofused B72220T2171K105 TDK 1.500: $1.413 Non-Stocked Lead-Time 10 Weeks	Mfr. Part # B72220T2171K105 Mouser Part # 871-B72220T2171K105	TDK	Varistors 175VAC 10% 20mm AdvanceD Thermofused Learn More about TDK epcos t varistor	Datasheet	Non-Stocked Lead-Time 10 Weeks	$1.413	Min.: 1.500 Mult.: 1.500	Thermo-fused Varistor, AdvanceD 20mm		PCB Mount	Radial								- 40 C	+ 105 C	Bulk
Varistors 230VAC 10% 20mm AdvanceD Thermofused B72220T2231K105 TDK 1.500: $1.379 Non-Stocked Lead-Time 10 Weeks	Mfr. Part # B72220T2231K105 Mouser Part # 871-B72220T2231K105	TDK	Varistors 230VAC 10% 20mm AdvanceD Thermofused Learn More about TDK epcos t varistor	Datasheet	Non-Stocked Lead-Time 10 Weeks	$1.379 $1.356 Quote Quote	Min.: 1.500 Mult.: 1.500	Thermo-fused Varistor, AdvanceD 20mm	MOVs	PCB Mount	Radial	230 VAC	300 VDC	360 V	595 V	10 kA	180 J	940 pF	- 40 C	+ 105 C	Bulk
Varistors 250VAC 10% 20mm AdvanceD Thermofused B72220T2251K105 TDK 1.500: $1.413 Non-Stocked Lead-Time 10 Weeks	Mfr. Part # B72220T2251K105 Mouser Part # 871-B72220T2251K105	TDK	Varistors 250VAC 10% 20mm AdvanceD Thermofused Learn More about TDK epcos t varistor	Datasheet	Non-Stocked Lead-Time 10 Weeks	$1.413	Min.: 1.500 Mult.: 1.500	Thermo-fused Varistor, AdvanceD 20mm		PCB Mount	Radial								- 40 C	+ 105 C	Bulk
Varistors 275VAC 10% 20mm AdvanceD Thermofused B72220T2271K105 TDK 1.500: $1.379 Non-Stocked Lead-Time 10 Weeks	Mfr. Part # B72220T2271K105 Mouser Part # 871-B72220T2271K105	TDK	Varistors 275VAC 10% 20mm AdvanceD Thermofused Learn More about TDK epcos t varistor	Datasheet	Non-Stocked Lead-Time 10 Weeks	$1.379 $1.356 Quote Quote	Min.: 1.500 Mult.: 1.500	Thermo-fused Varistor, AdvanceD 20mm	MOVs	PCB Mount	Radial	275 VAC	350 VDC	430 V	710 V	10 kA	215 J	850 pF	- 40 C	+ 105 C	Bulk

T Series ThermoFuse™ Varistors

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