1500 W peak pulse in a DO-214AB footprint
The 1.5SMC20A TR13 PBFREE: The 27.7 V clamping voltage at 54 A peak pulse current (10/1000 µs waveform) defines the maximum voltage the downstream circuitry sees during a surge event — a figure that directly sets the input rating of the protected converter or regulator. The 19 V minimum breakdown voltage gives the guard band above the 17.1 V reverse standoff: the diode stays transparent below 17.1 V, starts conducting at 19 V, and hard-clamps at 27.7 V. This 2 V window between standoff and breakdown is typical for a 20 V-class TVS and leaves margin for rail ripple without false triggering.
Housed in a DO-214AB (SMC) surface-mount package, the part mates with a standard SMC footprint — the same pad geometry used by other 1500 W TVS diodes in this case size. The Tape & Reel (TR) packaging suits automated pick-and-place assembly; the reel quantity is confirmed at RFQ. The 150°C upper limit is the absolute maximum junction temperature; derating the peak pulse power above 25°C per the datasheet's thermal derating curve is standard practice for sustained high-temperature environments.