Zener TVS for 6.5V rail protection
The SMAJ6.5E3/TR13 is a Zener-type transient voltage suppressor from Microchip Technology, designed to clamp overvoltage events on a 6.5V nominal rail. Its reverse standoff voltage of 6.5V means it sits across the supply without conducting until a transient exceeds the 7.22V minimum breakdown threshold.
Clamping and surge current capacity
When the transient hits, the device clamps at a maximum of 12.3V at the peak pulse current of 40.7A (10/1000µs waveform). That clamping voltage is the ceiling the downstream circuitry sees — a 12.3V clamp on a 6.5V rail leaves a 5.8V margin above the working voltage, which is typical for a Zener TVS protecting a 5V or 3.3V regulator input.
Housed in the DO-214AC (SMA) surface-mount package, this part shares the standard SMA footprint common across the SMAJ series.