Automotive-grade transient suppression for 12V rails
The 1.5KE13CAHA0G: It clamps at 18.2V maximum and handles 86A peak pulse current, making it a fit for protecting 12V automotive power buses from load-dump and inductive kickback transients.
Clamping voltage and breakdown margins
Reverse standoff voltage is 11.1V typical, meaning the diode draws negligible leakage below that rail level. Breakdown starts at 12.4V minimum, providing a 1.3V guard band above the 12V nominal bus before the TVS begins conducting. The maximum clamping voltage of 18.2V limits the transient stress on downstream components — a 12V-rated ECU input with 20V abs-max survives this clamp level without external series protection. The single bidirectional channel means both polarities are clamped in one device — useful for AC-coupled signal lines or power rails where reverse-voltage events are possible. No power-line protection flag indicates this is a general-purpose transient suppressor, not a dedicated rail-clamp array with integrated filtering.
Through-hole package and board integration
Housed in a DO-201AA (DO-27) axial leaded package, the 1.5KE13CAHA0G mounts through-hole. The DO-201 body handles the 1500W pulse without cracking the epoxy — the lead frame and die attach are sized for the thermal pulse energy. Tape & Box packaging is the standard reel-less format for axial diodes; the leads are taped between carrier strips for automated insertion, not wound on a reel.