AEC-Q101 qualification and automotive-grade transient protection
The 1.5KE13CAHE3_A/C is a bidirectional TransZorb® TVS diode from Vishay, part of the Automotive series that carries AEC-Q101 qualification. This means the part has passed the semiconductor device-level stress tests for automotive applications, including high-temperature reverse bias and power cycling, and is traceable to a PPAP-compliant production line.
Clamping performance and BOM-fit for 12V rails
The maximum clamping voltage is 18.2V at a peak pulse current of 82.4A, which limits the transient voltage seen by downstream electronics to a level that most 12V-rated ICs can survive. The single bidirectional channel handles both positive and negative transients in one package, eliminating the need for two unidirectional devices in series for AC-coupled or reverse-polarity-protected lines.
Through-hole axial package and board-level integration
The DO-201AA (DO-27) axial leaded package is a through-hole form factor with a body diameter of 5.3 mm and overall length of 9.1 mm. The lead spacing is 8.9 mm nominal, and the leads are tin-plated copper for solderability. The package is not moisture-sensitive (MSL 1) and can be wave-soldered without a pre-bake. Mounting is straightforward: the leads are inserted into plated through-holes on the PCB, and the body is typically spaced 3-5 mm above the board to allow airflow for cooling. The axial form factor is compatible with both hand-assembly and wave-solder processes, and the part is supplied in tape-and-reel format for automated insertion.