The SRS1-A1D102: No official successor or replacement has been issued, so the BOM line is stable for both new builds and ongoing production.
Wide input range simplifies coil-voltage selection
The DC input accepts 4 to 24 VDC, covering the common PLC output voltages of 5 V, 12 V, and 24 V without needing separate coil variants. One relay line item can serve multiple control-voltage domains on the same panel. The coil is polarity-sensitive — confirm the DC supply orientation matches the relay's internal flyback diode. The wide range also means the relay will pull in reliably at the low end of the supply tolerance, not just at nominal.
2 A DC load rating — signal-level switching ceiling
Rated for 2 A continuous DC load across 5 V to 100 V. This covers solenoid valves, indicator lamps, and interposing relays in industrial control panels. It is not sized for motor or heater contactor loads — those need a power relay in the 10 A+ class. The SPST-NO (1 Form A) contact arrangement gives one normally-open pole. For applications requiring a normally-closed auxiliary or a second isolated pole, the SRS1 family includes SPDT and DPDT variants under the same base part number.
Socketable plug-in — panel wiring without soldering
Termination is plug-in style, designed to mate with a standard relay socket. The socketable mounting allows quick replacement without desoldering — useful for MRO spares and panel retrofit work. The relay ships in a Box package (individual unit), not tape-and-reel. For volume builds, confirm the socket part number separately — the socket is not included with the relay.