The 1.5SMC36AH: It is a unidirectional, single-channel device designed to clamp transient overvoltage events on a 30.8V nominal rail. Breakdown voltage is specified at 34.2V minimum, with a maximum clamping voltage of 49.9V at the rated peak pulse current of 31A. The reverse standoff voltage of 30.8V defines the DC operating level below which the diode presents negligible leakage.
Automotive qualification and application context
The 1.5SMC36AH carries an Automotive grade designation and is qualified to AEC-Q101, the automotive stress-test qualification standard for discrete semiconductors. This means the device has passed reliability tests including temperature cycling, high-temperature reverse bias, and ESD robustness per the automotive industry's zero-defect manufacturing requirements. While explicitly listed for Telecom applications, the AEC-Q101 grade makes it equally suitable for automotive electronic control units, battery management systems, and in-vehicle infotainment power rails where 30.8V nominal bus protection is needed. The wide junction temperature range covers under-hood and cabin environments.
The tape-and-reel packaging supports automated pick-and-place assembly. The device does not include power line protection circuitry — it is a standalone transient suppressor for signal or low-power DC rails.
The product status is Active, meaning Taiwan Semiconductor continues to manufacture the 1.5SMC36AH without an end-of-life notice.