1500W surge rating in a hermetic DO-13 can
The 1N6057A/TR is a bidirectional Zener TVS diode rated for 1500W peak pulse power at 10/1000µs waveform — enough to clamp transients on 24V and 28V DC rails in avionics, military, and industrial control systems. With a 47V reverse standoff voltage and 53.2V minimum breakdown, it sits above a 48V DC bus or a 28V AC line, staying transparent during normal operation and only conducting when a surge pushes the rail above the breakdown threshold.
Clamping and pulse current — what the numbers mean for your board
When the 1N6057A/TR fires, it clamps the transient to 77V maximum at the rated 19.5A peak pulse current — that 77V ceiling is the voltage stress the downstream components must survive during the surge event. The single bidirectional channel means one device protects a differential pair or an AC line against both positive and negative transients, saving board space versus two unidirectional TVS diodes back-to-back. No power line protection (the part is not designed for continuous overvoltage clamping on a power rail) — its role is transient suppression, not regulation.
Active production — no last-time-buy pressure
General-purpose application classification means it is not restricted to a specific qualification flow — but the DO-13 hermetic package is a known high-reliability form factor used in MIL-STD-750 screened builds.