ThermoFuse™ Varistors

TDK ThermoFuse™ Varistors feature a wide operating voltage range of 130VRMS to 750VRMS. 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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Qty. RoHS ECAD Model Series
Product
Mounting Style
Termination Style
Voltage Rating AC
Voltage Rating DC
Varistor Voltage
Clamping Voltage
Diameter
Peak Surge Current
Surge Energy Rating
Capacitance
Minimum Operating Temperature
Maximum Operating Temperature
Packaging
EPCOS / TDK Varistors 300VAC 10% 20mm 2-pin ThermoFuse
Datasheet
1.748In Stock
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
EPCOS / TDK Varistors 150V 14mm 2pin ThermoFuse Varistor
Datasheet
1.058In Stock
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
EPCOS / TDK Varistors 320VAC 10% 20mm 2-pin ThermoFuse
Datasheet
794In Stock
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
EPCOS / TDK Varistors 510VAC 10% 20mm AdvanceD Thermofused
Datasheet
1.539In Stock
Min.: 1
Mult.: 1

Thermo-fused Varistor, AdvanceD 20mm PCB Mount Radial - 40 C + 105 C Bulk
EPCOS / TDK Varistors 320VAC 10% 20mm AdvanceD Thermofused
Datasheet
2.355In Stock
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
EPCOS / TDK Varistors 275V 14mm 2pin ThermoFuse Varistor
Datasheet
1.032In Stock
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
EPCOS / TDK Varistors 175VAC 10% 14mm AdvanceD Thermofused
Datasheet
489In Stock
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
EPCOS / TDK Varistors 275VAC 10% 20mm 3-pin ThermoFuse
Datasheet
239In Stock
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
EPCOS / TDK Varistors 300V 14mm 2pin ThermoFuse Varistor
Datasheet
987Expected 4/13/2026
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
EPCOS / TDK Varistors 130VAC 10% 20mm 3-pin ThermoFuse
Datasheet
600Expected 2/23/2026
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 1850 pF - 40 C + 85 C Bulk
EPCOS / TDK Varistors 320V 14mm 2pin ThermoFuse Varistor
Datasheet
Lead-Time 10 Weeks
Min.: 1
Mult.: 1

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
EPCOS / TDK Varistors 150VAC 10% 14mm AdvanceD Thermofused
Datasheet
Non-Stocked Lead-Time 8 Weeks
Min.: 1.960
Mult.: 980

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
EPCOS / TDK Varistors 175VAC 10% 14mm AdvanceD Thermofused
Datasheet
Non-Stocked Lead-Time 8 Weeks
Min.: 1.960
Mult.: 980

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
EPCOS / TDK Varistors 300VAC 10% 14mm AdvanceD Thermofused
Datasheet
Non-Stocked Lead-Time 8 Weeks
Min.: 1.960
Mult.: 980

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
EPCOS / TDK Varistors 300VAC 10% 14mm AdvanceD Thermofused
Datasheet
Non-Stocked Lead-Time 8 Weeks
Min.: 1.680
Mult.: 560

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
EPCOS / TDK Varistors 320VAC 10% 14mm AdvanceD Thermofused
Datasheet
Non-Stocked Lead-Time 8 Weeks
Min.: 1.960
Mult.: 980

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
EPCOS / TDK Varistors 320VAC 10% 14mm 3-pin ThermoFuse
Datasheet
Non-Stocked Lead-Time 10 Weeks
Min.: 1.000
Mult.: 200

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
EPCOS / TDK Varistors 380VAC 10% 14mm 3-pin ThermoFuse
Datasheet
Non-Stocked Lead-Time 10 Weeks
Min.: 1.000
Mult.: 200

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
EPCOS / TDK Varistors 130VAC 10% 20mm 2-pin ThermoFuse
Datasheet
Non-Stocked Lead-Time 10 Weeks
Min.: 1
Mult.: 1

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 1850 pF - 40 C + 85 C Bulk
EPCOS / TDK Varistors 150VAC 10% 20mm 2-pin ThermoFuse
Datasheet
Non-Stocked Lead-Time 10 Weeks
Min.: 1
Mult.: 1

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 1550 pF - 40 C + 85 C Bulk
EPCOS / TDK Varistors 250VAC 10% 20mm 2-pin ThermoFuse
Datasheet
Lead-Time 10 Weeks
Min.: 1
Mult.: 1

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
EPCOS / TDK Varistors 275VAC 10% 20mm 2-pin ThermoFuse
Datasheet
Non-Stocked Lead-Time 10 Weeks
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
EPCOS / TDK Varistors 50VAC 10% 20mm ThermoFuse
Datasheet
Non-Stocked Lead-Time 8 Weeks
Min.: 1.500
Mult.: 60

Thermo-fused Varistor,StandarD 20mm MOVs PCB Mount Radial 50 VAC 20 mm - 40 C + 85 C Bulk
EPCOS / TDK Varistors 50VAC 10% 20mm ThermoFuse
Datasheet
Non-Stocked Lead-Time 8 Weeks
Min.: 1.500
Mult.: 60

Thermo-fused Varistor,StandarD 20mm MOVs PCB Mount Radial 50 VAC 20 mm - 40 C + 85 C Bulk
EPCOS / TDK Varistors 510VAC 10% 20mm ThermoFuse
Datasheet
Non-Stocked Lead-Time 8 Weeks
Min.: 1.680
Mult.: 140

Thermo-fused Varistor,StandarD 20mm MOVs PCB Mount Radial 510 VAC 20 mm - 40 C + 85 C Bulk