What the 1500W rating means for a power rail
The 1.5KE16CA-E3/54: For a 13.6 V nominal rail, the breakdown starts at 15.2 V (min) and the clamp voltage is held to 22.5 V at the 66.7 A peak pulse current. The junction temperature range spans -55°C to 175°C, so it handles the thermal shock of repetitive transients in a motor-drive or battery-charger environment.
DO-201AA axial package and board integration
Housed in a DO-201AA (DO-27) axial-lead package, the 1.5KE16CA-/54 is a through-hole part — the leads take the mechanical strain, not the board. The body is rated for the full 1500 W pulse without derating at 25°C; above that, follow the derating curve in the datasheet. No power-line protection feature (the device is a standalone TVS, not a filtered protector).
Active lifecycle and sourcing posture
No official successor or second-source cross-reference is published by Vishay for this order code.