What the 1500W rating means for your rail
The 1.5KE180CA_R2_00001: That 1.5kW rating means it can clamp a 154V nominal rail — the reverse standoff voltage — up to 246V maximum clamping, shunting 6.1A of surge current through the junction without failing. For a 24V or 48V DC bus that sees occasional inductive kickback or lightning-coupled transients, this part sits in the right energy class to absorb the hit before the downstream regulator sees it.
Bidirectional — no polarity worries on the board
With a single bidirectional channel, the 1.5KE180CA clamps equally on positive and negative transients. That saves a layout decision: you don't need to orient the diode relative to the rail polarity, which is handy on AC-coupled lines or floating signal pairs where the surge polarity isn't guaranteed. The breakdown voltage starts at 171V minimum, so the rail sees no leakage until the transient exceeds that threshold.
Through-hole DO-201AE — rework-friendly package
The DO-201AE axial leaded package is a through-hole part. The body is large enough to read the marking without magnification, and the leads are robust enough to survive a couple of rework cycles. No moisture sensitivity level to track — just solder and go.
Temperature range and production status
Operating junction temperature spans -65°C to 175°C, covering military and automotive under-hood ambient without derating.