AEC-Q101 TVS for 154V automotive rails
The 1.5SMC180CAHE3/57T: This window is sized for a nominal 154V DC bus or an AC line where bidirectional clamping is required.
Package and thermal integration
The junction temperature range spans -65°C to 150°C, covering under-hood and engine-bay thermal profiles without derating at the upper end. The DO-214AB footprint is shared across the 1.5SMC family, so a single PCB layout serves multiple voltage variants. The cathode band is marked for orientation; the bidirectional channel means no polarity concern during assembly.