The 1.5SMC27CA TR13 PBFREE: The Tape & Reel packaging (TR13 suffix) suits automated pick-and-place assembly; the DO-214AB footprint is common across the 1.5SMC family, so a single PCB layout serves multiple voltage variants.
1500W bidirectional TVS — key ratings for the BOM
Minimum breakdown voltage is 25.7V; maximum clamping voltage at the 40A peak pulse current is 37.5V. The 11.8V window between standoff and clamp defines the protection margin — a 24V rail sees the clamp engage before reaching 38V, keeping downstream components inside their absolute-max ratings. Single bidirectional channel — the device protects lines that swing both positive and negative relative to ground, such as AC signal lines or differential data pairs, without needing two unidirectional devices back-to-back.
Temperature grade and package integration
Operating junction temperature range of -65°C to 150°C covers military/aerospace and industrial environments where the ambient may cycle from cold soak to hot bay — the 150°C ceiling also allows the die to heat during a surge without immediate derating. No power-line protection rating (the device is not designed for continuous overvoltage on AC mains) — it is a transient suppressor for DC rails, signal lines, and low-impedance circuits where the surge duration is measured in microseconds.