EOL/hot lifecycle and what that does to the order book
The 1FK7042-5AK71-1KG3: The lifecycle stage sits at EOL/hot, meaning the original manufacturer has flagged the part for discontinuation — the catalogue number is still orderable from Siemens at the moment of the notice, but the window for new-build production is closing and the long-term supply will fall to the independent distribution and surplus channel. For a buyer landing on this order code with a BOM line to fill, the practical path is to quote against an RFQ against independent stock — factory-direct is unlikely to be a sustainable channel once the EOL/hot window closes, and lead-time at the OEM gets less predictable the closer the cut-off date moves.