Mature part, still orderable — how it lands on the storeroom shelf
The Omron G3MC-201PL DC5 is listed as a 4-pin solid state relay in the Omron G3MC line, with the catalog title confirming a DC5 control coil and a PCB-mount through-hole footprint intended for direct soldering to the host board. Lifecycle stage reads mature rather than active-new: the part has been in the catalog long enough that its pinout and footprint are stable across existing panel builds, which is what an MRO buyer stocking a critical spare actually wants to see.
What the catalog hierarchy tells you about how it is sold
The category trail places it as a Solid State Relay, nested under Solid State Overload Relays as the subcategory, with the broader Circuit Breakers, Fuses & Protection bucket above — meaning it is sourced through the same procurement channels as panel-protection devices rather than the logic-relay catalog.
Sourcing reality for a mature Omron SSR
For a storeroom keeper, that translates into a predictable critical spare — order on the BOM cycle rather than chasing last-time-buy windows, and keep min/max set against consumption rather than against an obsolescence horizon.