This page indexes the C&K Switches discontinuations we have verified from the manufacturer's own lifecycle and discontinuance notices: 2,294 records across 2 datasets, each with its notice, its last-time-buy and last-shipment dates where published, and — where the manufacturer printed one — the recommended replacement.
Switch end-of-life reference for C&K Switches — 260 verified records from C&K's own Product Discontinuation Notifications: exact part number and notice dates across 7 notices (PDN21-10 3 Series Thumbwheel 135, PDN21-14 PTS tactile 46, PDN25-23 ET27 rocker/toggle 37, PDN 20-05 CCM01MK2 connectors 34, PDN-22-11 PS pushbutton 5, PDN-22-13 ZMA G01 examples 2, PDN 22-04 DS Detect 1). No per-part replacement is printed in any notice — series-level alternatives only, recorded as printed. 260 verified records; 6-record free sample; full Markdown file 0.01 USDC via x402.
End-of-life reference for C&K Switches' three appendix mega-grid discontinuation notices — 2,034 verified records: PDN25-26 Selected Rocker, Slide, and Toggle switches (630), PDN25-28 Termination of Entire Series of Thumbwheel (632), PDN26-5 Rev. B SS & SK slide and PS pushbutton switches (772). Held uncounted at the C&K v1 build; extracted by printed column coordinates and cross-validated against an independent text extraction. No per-part replacement is printed in any notice. 2,034 verified records; free sample; full Markdown file 0.01 USDC via x402.
How can I check whether a C&K Switches part is discontinued?
Check the ordering part number against the manufacturer's published lifecycle / discontinuance notices. This page indexes the 2,294 C&K Switches 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 C&K Switches-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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