1500 W of clamping muscle in a DO-214AB belly
The 1.5SMC24A is a 1500 W peak-pulse-power Zener TVS diode from Littelfuse's 1.5SMC series, built to shunt transient energy away from a 20.5 V nominal rail. When the incoming spike exceeds the 22.8 V minimum breakdown voltage, the device clamps at 33.2 V max, passing up to 45.8 A of the 10/1000 µs surge waveform before the silicon recovers. The 20.5 V reverse standoff means this part sits across a 20 V or 24 V supply bus without conducting in normal operation — it stays dark until the transient arrives.
Package and rework — DO-214AB (SMC) under the iron
Housed in the DO-214AB (SMCJ) surface-mount package, the 1.5SMC24A measures roughly 7.1 mm × 6.2 mm with a 2.6 mm seated height — a medium-footprint TVS that takes standard reflow profiles. The cathode band is clearly marked on the body; orientation is unambiguous for hand placement or pick-and-place.
Active lifecycle — no LTB clock ticking
No stock-holding claim — quoted per RFQ.