What this card is
The Mitsubishi FX5-C16EYR/D-TS is a 16-point relay output expansion module that extends an FX5-series PLC base with sixteen dry-contact outputs for switching discrete loads in a control panel. It sits in the PLC I/O expansion class rather than a base CPU or analog card, and the /D-TS suffix marks the Mitsubishi I/O expansion terminal-block variant within the FX5 family.
Lifecycle and stocking posture
For an MRO buyer who keeps a min/max on critical spares, the FX5-C16EYR/D-TS is the kind of fast-mover that earns shelf space: relay output cards fail more often than the CPU they attach to, and a 16-point module is the typical repair swap, not a one-off special.