AEC-Q101 qualified bidirectional TVS for 24V rails
The 1.5SMC30CH: It is AEC-Q101 qualified for automotive applications, with an operating junction temperature range of -55°C to 150°C.
1500W peak pulse — what that means for the board
The 1500W peak pulse power rating (1.5kW) is specified for a 10/1000µs exponential waveform. This is the standard TVS rating condition per IEC 61000-4-5; the actual energy-handling capability for shorter transients (e.g., 8/20µs) is significantly higher. The 36A peak pulse current at the 43.5V clamp level confirms the device can absorb substantial surge energy without exceeding its junction temperature limit. The bidirectional configuration (single channel, symmetrical breakdown at 27V min) means the TVS clamps both positive and negative transients with equal performance. This is essential for AC-coupled signal lines or power rails that may see reverse polarity events, as it eliminates the need for a series diode.
Active production — qualified for automotive BOMs
For new designs, the part number 1.5SMC30CH is the current production order code.