Transient voltage suppression at 24 V rail
The 1.5SMCJ24CA_R1_00001 is a bidirectional TVS diode — the CA suffix designates the bidirectional polarity variant — designed to clamp voltage transients on a 24 V rail. A 1500 W peak pulse rating at that waveform places this in the mid-power class — adequate for board-level protection on power rails and signal lines that face inductive kick or ESD in industrial environments. The CA polarity code also confirms it is unidirectional in function despite the bidirectional naming convention of this series.
Junction temperature and general-purpose application context
The junction temperature rating runs to 150 °C, which gives headroom above the typical industrial enclosure ambient of 85 °C — the device can sit in a sealed enclosure without a dedicated heatsink as long as the transient energy budget is not exceeded. The surface-mount DO-214AB (SMC) package is reflow-soldered and compatible with standard pick-and-place assembly.
Packaging and the _R1 suffix
The ordering code carries the _R1 variant suffix, which specifies the Tape & Reel (TR) packaging; Cut Tape (CT) is also offered as an option. The base product number 1.5SMC ties to the wider 1.5SMCJ series — confirming which series footprint and landing pattern to reference when checking the PCB pad layout. Confirm the packaging reel diameter and leader/trailer length with your assembly house if the order is going to a CM that does not stock loose cut tape.
Active status and sourcing posture
For a production board running 24 V rails, the active status means it is a viable candidate for new designs, not just legacy repair. If the 1.5SMCJ series footprint is already qualified in the layout, the _R1 ordering code is the correct reeled variant to release to the BOM without a board spin.