1500W Zener TVS — surge protection for 12V/15V rails
With a 15V reverse standoff voltage and a minimum breakdown of 17.6V, this part sits on a 12V or 15V DC rail without conducting, then avalanches at 17.6V and clamps the transient to 25V maximum at 60A peak pulse current (8/20µs waveform).
DO-201AD axial — through-hole for high-energy pulses
The DO-201AD axial package is a through-hole format that handles the thermal pulse of a 1500W surge better than a surface-mount equivalent — the lead acts as a heat sink during the event. Mounting is through-hole, which means the part sits on the board with leads soldered into plated through-holes; the axial lead form factor is common in telecom line cards, industrial power supplies, and avionics transient protection stages.
Buyers should verify date-code authenticity and request traceability documentation, especially for lots surfacing long after the official last-time-buy window closed.