What the 1.5SMC62CA-E3/57T is and does
This is a bidirectional TVS diode built on Vishay's TransZorb® series — a Zener-type transient suppressor that clamps both polarities around its standoff voltage, protecting downstream circuitry from voltage spikes in either direction.
Peak pulse handling and thermal margin
1.5 kW peak pulse at 10/1000 µs is the standard transient rating for this SMC-package class — it covers inductive kickback, switching surges, and ESD events common in general-purpose protection applications. The junction temperature limit of 150°C gives thermal headroom for layouts with moderate copper pad area under the cathode tab. Power Line Protection is marked No — this part is not designed for direct line-to-neutral AC service; it suits board-level protection on signal rails and power nodes below its standoff rating.