This page indexes the Siemens Automation discontinuations we have verified from the manufacturer's own lifecycle and discontinuance notices: 25 records across 1 dataset, each with its notice, its last-time-buy and last-shipment dates where published, and — where the manufacturer printed one — the recommended replacement.
End-of-life and migration reference for legacy Siemens automation — SIMATIC S5, S7-200, S7-300, ET 200M/S, MASTERDRIVES, MICROMASTER, legacy Panels, legacy software — in Siemens' PM milestone vocabulary. 25 verified series-level records; 5-record free sample; full Markdown file 0.01 USDC via x402.
How can I check whether a Siemens Automation part is discontinued?
Check the ordering part number against the manufacturer's published lifecycle / discontinuance notices. This page indexes the 25 Siemens Automation records we have verified from those notices, with the replacement the manufacturer printed for each part.
What does last time buy (LTB) mean?
The last date the manufacturer accepts orders for a discontinued part. After it passes, the part is only available from remaining distributor stock or the secondary market — exactly when a verified replacement cross-reference matters most.
Are manufacturer-recommended replacements drop-in compatible?
Not always. Some notices warn explicitly that the recommended replacement is not pin or voltage compatible and requires a board redesign. Always verify package and key specs before committing a design or a purchase order.
Where does this data come from?
Every record is extracted from a Siemens Automation-authored document — lifecycle, discontinuation, PCN/PDN notices and the affected-part lists they publish — downloaded from the manufacturer's own channels. No part number, date or replacement is inferred.
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