50.2 V standoff and the clamping ceiling
The 1.5SMC62CH: The 50.2 V reverse-standoff voltage is the working rail this TVS watches — the circuit runs below it with no conduction. That means this part is rated for relatively short, high-energy transients rather than sustained fault currents; the 1.5 kW peak pulse rating at that same waveform sets the clamping energy ceiling the protection circuit designer works to.
AEC-Q101 grade and thermal envelope
AEC-Q101 qualification means this Zener has passed the automotive stress battery: mechanical shock, thermal cycling, and humidity bias — the same screens that qualify MOSFETs and rectifiers for under-hood and chassis-domain deployment. For telecom outdoor equipment, that thermal band covers the cabinet extremes in most climates without derating — a base-station power entry module running at elevated ambient in a solar-exposed enclosure is within the operating window.
DO-214AB SMC surface-mount footprint
The DO-214AB (SMC) package is the mid-power SMC footprint — larger cathode tab area than the SMA, which matters for thermal resistance from junction to ambient. The Tape & Reel packaging is the standard orientation for high-volume pick-and-place; confirm the reel count matches the feeder capacity on the line.
Active sourcing — Taiwan Semiconductor Corporation
Marked Active by Taiwan Semiconductor Corporation — quoted to order through independent distribution channels, with availability and volume pricing confirmed at RFQ.