Clamping and breakdown parametrics
The 1.5KE510CA/B: This means a 480 VAC nominal line sees the TVS remain transparent during normal operation, then clamp a surge before it reaches 700 V — a margin that keeps downstream semiconductors inside their V(BR)SS rating. This suits it for AC power-line protection where the surge polarity alternates, or for DC rails where the return line may see a reverse-polarity event.
Temperature range and package fit
The operating junction temperature range spans -55°C to +150°C. At the high end, the leakage current through the Zener junction increases, but the 1500 W peak pulse rating already accounts for derating above 25°C — the derating curve in the datasheet governs the allowable peak power at 125°C or 150°C ambient. The DO-201AA axial package (supplier device package DO-201) is a standard through-hole footprint. Lead spacing and body diameter match legacy board layouts — a direct drop-in replacement for DO-201 TVS diodes from other manufacturers without a PCB respin. The box packaging suits manual insertion or tape-and-reel for auto-insertion if the reel option is specified.