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TDK EPCOS ThermoFuse Varistors | Digi-Key Daily

TDK's EPCOS ThermoFuse varistors are uniquely designed disk varistors which are inherently safe due to their thermally coupled fuse. And now, TDK extends its EPCOS ThermoFuse family with their compact NT14 and NT20 series. Both are available in 2-leaded and 3-leaded variants, with the third lead used to monitor whether the fuse has been trigger. With a disk diameter of 14 millimeters, the NT14 series is designed to absorb maximum surge currents with an 8-by-20 microsecond pulse of 6 kiloamps at rated voltages of between 130 and 680 volts-RMS. The NT20 series, a disk diameter of 20 millimeters, has a surge current capability with an 8-by-20 microsecond pulse of 10 kiloamps at rated voltages of between 130 and 750 volts-RMS.

2/11/2019 2:23:29 PM

Part List

ImageManufacturer Part NumberDescriptionAvailable QuantityView Details
VARISTOR 470V 6KA DISC 17MMB72214R2301K101VARISTOR 470V 6KA DISC 17MM1085 - ImmediateView Details
VARISTOR 430V 6KA DISC 17MMB72214R2271K101VARISTOR 430V 6KA DISC 17MM737 - ImmediateView Details
VARISTOR 510V 6KA DISC 17MMB72214R2321K101VARISTOR 510V 6KA DISC 17MM761 - ImmediateView Details
VARISTOR 240V 6KA DISC 17MMB72214R2151K101VARISTOR 240V 6KA DISC 17MM1623 - ImmediateView Details
VARISTOR 430V 10KA DISC 23MMB72220R2271K101VARISTOR 430V 10KA DISC 23MM548 - ImmediateView Details
VARISTOR 510V 10KA DISC 23MMB72220R2321K101VARISTOR 510V 10KA DISC 23MM583 - ImmediateView Details
VARISTOR 205V 10KA DISC 23MMB72220W2131K101VARISTOR 205V 10KA DISC 23MM691 - ImmediateView Details
VARISTOR 430V 10KA DISC 23MMB72220W2271K101VARISTOR 430V 10KA DISC 23MM672 - ImmediateView Details
VARISTOR 510V 10KA DISC 23MMB72220W2321K101VARISTOR 510V 10KA DISC 23MM973 - ImmediateView Details
VARISTOR 470V 10KA DISC 23MMB72220R2301K101VARISTOR 470V 10KA DISC 23MM601 - ImmediateView Details
VARISTOR 205V 10KA DISC 23MMB72220R2131K101VARISTOR 205V 10KA DISC 23MM682 - ImmediateView Details
VARISTOR 240V 10KA DISC 23MMB72220R2151K101VARISTOR 240V 10KA DISC 23MM662 - ImmediateView Details
VARISTOR 510V 6KA DISC 17MMB72214W2321K101VARISTOR 510V 6KA DISC 17MM765 - ImmediateView Details
VARISTOR 620V 6KA DISC 17MMB72214W2381K101VARISTOR 620V 6KA DISC 17MM795 - ImmediateView Details
VARISTOR 390V 10KA DISC 23MMB72220R2251K101VARISTOR 390V 10KA DISC 23MM653 - ImmediateView Details