1.5 kW Zener TVS in a DO-214AB body
The 1.5SMC20A-M3/57T: It clamps transients at 27.7 V maximum and handles a peak pulse current of 54.2 A.
Package and rework — DO-214AB on the bench
Housed in a DO-214AB (SMC) package, the same footprint as the SMCJ suffix. The body is large enough to hand-solder with a standard iron or hot-air station — the tab on the cathode side gives a clear orientation mark so you know where pin 1 lands before reflow. Surface-mount on a standard copper-land pattern; the 1500 W rating assumes the PCB pad acts as a heatsink for the pulse. Operating temperature spans -65°C to 150°C junction, so it survives hot-air rework cycles without degrading the die attach.