1500 W peak pulse, 40.2 V standoff — unidirectional TVS in DO-201
The 1.5KE47A B0G: Its 40.2 V reverse standoff voltage and 44.7 V minimum breakdown voltage define the protection threshold for a 36–40 V nominal rail — the TVS stays transparent below the standoff and clamps transients above breakdown. Clamping is specified at 64.8 V maximum at 24 A peak pulse current, which sets the voltage the downstream circuitry must survive during a surge event. The 1500 W rating means it can absorb a single 10/1000 µs pulse of that energy without failing short — useful for secondary protection on DC power inputs, relay coils, or signal lines in industrial and telecom gear.
DO-201 axial — through-hole mounting and temperature range
The wide temperature window means the leakage current and clamping voltage shift predictably across the band — derate the peak pulse power above 25 °C per the datasheet curve.
Active production — sourcing posture
The part is a single-channel unidirectional device; for bidirectional or higher-power requirements, the 1.5KE series includes other standoff voltage options in the same DO-201 footprint.