Transient voltage suppressor for 24V DC rail protection
The Vishay 1.5SMC27A-M3/57T is a 1500W peak pulse power TVS diode from the 1.5SMC TransZorb series, designed to clamp voltage transients on DC power rails and signal lines. When a surge event exceeds the breakdown voltage (minimum 25.7V), the device clamps the transient to a maximum of 37.5V at the rated peak pulse current of 40A for a 10/1000µs waveform.
Package and thermal considerations for board integration
The supplier device package is listed as DO-214AB (SMCJ), confirming interchangeability with the SMCJ package outline.
Active lifecycle and compliance documentation
As a standard catalog part in the TransZorb series, the device is supplied in Tape & Reel (TR) packaging suitable for automated pick-and-place assembly. Compliance documentation including RoHS and REACH declarations is available from Vishay; the part does not carry power line protection certification (Power Line Protection: No), confirming its intended use on DC signal or low-voltage power rails rather than AC mains.