600W Zener TVS in a DO-15 axial package
The P6KE30CA-T: Housed in the through-hole DO-204AC (DO-15) axial package, it mounts directly into a PCB via drilled holes — the axial leads carry the surge current into the board's ground and power planes. The bidirectional configuration means a single device protects both polarities on a line, simplifying layout for AC-coupled or floating signal pairs.
With a 25.6V standoff, this TVS stays transparent on a 24V rail — it does not conduct leakage until the transient exceeds the breakdown threshold at 28.5V minimum. The 41.4V clamp voltage is the maximum the downstream circuitry sees during a surge event; a 24V-rated DC-DC converter or sensor input with a 50V abs-max rating has headroom here. The 14.4A peak pulse current (10/1000µs) is the surge current the device shunts to ground. For a 600W part, the clamp voltage times this current equals the power rating — a 41.4V clamp × 14.4A is 596W, consistent with the 600W headline. The 10/1000µs waveform simulates a typical lightning-induced surge on a telecom or industrial line. In an outdoor enclosure that sees 85°C ambient, the junction stays well within margin.
Obsolete — sourcing through independent channels
Diodes Incorporated lists the P6KE30CA-T as obsolete. The 600W rating and 25.6V standoff are the parametric gate — any replacement candidate must match these within the application's derating margin.