1500W bidirectional TVS for automotive and telecom rails
The 1.5SMC120CAHM3/H: The single bidirectional channel means it protects both polarities in one package — useful for AC signal lines or bipolar DC buses where the transient can swing either way. No power line protection feature means it is designed for data/signal lines or low-power auxiliary rails, not the main power feed.
Qualified to AEC-Q101, the automotive discrete semiconductor stress test standard — this covers temperature cycling, high-temperature reverse bias, and ESD robustness. The -65°C to 150°C junction temperature range matches engine-bay and under-hood thermal profiles, as well as outdoor telecom cabinet environments. The DO-214AB (SMC) surface-mount package is the standard footprint for 1500W TVS diodes. The large copper tab on the cathode side (for unidirectional parts) or the body itself (bidirectional) conducts heat into the PCB copper pour — the board layout's thermal pad area directly sets the derating at elevated ambient temperatures.
Active lifecycle — no end-of-life pressure
The AEC-Q101 traceability chain is maintained through the supply lot documentation.