Obsolescence taken from Vishay's own Product Termination / Obsolescence Notifications (PTNs) — Vishay-authored notices opened in full as TTI-hosted mirrors of the identical Vishay PDFs (TTI is Vishay's authorised distribution channel). Every record is one orderable printed in a PTN materials list, across 13 PTNs: 138 AML axial aluminium capacitors (40 records — two case sizes discontinued because the supplier discontinued the injection-moulding material; no replacement named), PBF-suffix SCR thyristors (18 records — portfolio harmonisation; Annex 1 names the equivalent non-PBF orderable for every part), BZX85B / ZMYB small-signal Zener diodes (77 records; no replacement named), low-running optoelectronic products (44 unique records; no replacement named), VCNL3020 / VCNL4020 / VCNL4020X01 proximity and ambient-light sensors (6 records — three alternatives named at group level only, explicitly not 1:1), and PTC307C Cera-Mite motor-start pellets (19 records; no replacement named), plus five further notices from the same Vishay PTN channel: Siliconix commercial power MOSFETs (40 records — Tower 6-inch foundry termination; 31 with a named replacement, 9 printing "-"), optocouplers with low sales (25 + 4 records — obsoleted raw material; every record names an alternative), the M39003/01 CSR13 qualification termination (15 records — Weibull level D only, narrower than a full discontinuance; Vishay remains qualified at other failure-rate levels), and VJ 0603 NP0 1 nF MLCCs (39 records; no replacement named) — the part to be discontinued, the replacement exactly as the notice prints it, and the PTN's issue, last-time-buy and last-ship dates. 156 of the 420 records name a per-part replacement — including 78 of the 82 Siliconix analog-switch records (DG families, Tower1 fab closure; 4 print "NONE") and 11 PTC305C records whose notice prints two schedule versions (cover dates vs body NA), a discrepancy carried in the file exactly as printed.
Time-critical: the PBF-suffix SCR set's final shipments end 5 November 2026 (its last-time-buy date, 5 May 2026, has passed) — and it is the one set where every part has a named form-fit-function-equivalent replacement. The 138 AML capacitors' final shipments ended 30 September 2026 and the optoelectronics' ended 7 August 2026.
Counting basis, stated plainly: one record per unique orderable printed in a PTN's materials list (40 + 18 + 77 + 44 + 6 + 19 + 40 + 25 + 4 + 15 + 39 + 82 + 11 = 420). The optoelectronics materials list prints 46 part-number tokens; two are exact duplicates as printed (K810P-24016261 and VEMT4700F-GS08) and are counted once.
Honesty notes: the PTC307C notice prints two different last-ship dates in its two bound-in forms (9 January 2025 and 31 December 2024) — both are carried in the file, neither silently preferred. Series-scope statements are not records: the capacitor notice says its two case sizes are affected "whether listed or not" and the PTC notice says it covers all part numbers starting with PTC307C; only printed orderables are counted. The VCNL alternatives (VCNL4030X01, VCNL3030X01, VCNL4040) are group-level for the three base parts collectively and are never mapped to an individual orderable. Deliberately excluded: PCN-DD-025-2025 (a direct full read was refused with HTTP 403, so its rows were never opened in full) and the 2020 Dale resistor termination PTN-DR-00002-2020 (affected parts defined only by links to five datasheet PDFs, no materials list in the notice).
Verification standard: Vishay-authored PTNs only — the 13 notices above, every one opened in full as a distributor mirror (TTI, Mouser, DigiKey, manuals.plus) of the identical Vishay document; Vishay's own PCN portal is login-gated, so the distributor channel is the public record.
| PTN | Part to be Discontinued | Replacement Part | Last Time Buy | Last Ship |
|---|---|---|---|---|
| PTN-AC-00506-2025-REV-0 | MAL213823101E3 | None named | 2026-03-31 | 2026-09-30 |
| PTN-DD-022-2025-REV-0 | VS-110RKI120PBF | VS-110RKI120 | 2026-05-05 | 2026-11-05 |
| PTN-DD-019-2025-REV-0 | BZX85B75-TAP | None named | 2025-12-08 | 2026-03-31 |
| PTN-DD-019-2025-REV-0 | ZMYB12-GS08 | None named | 2025-12-08 | 2026-03-31 |
| PTN-OPT-1398-2025-REV-0 | TCST1030 | None named | 2026-02-06 | 2026-08-07 |
| PTN-OPT-1415-2025-REV-0 | VCNL4020-GS08 | Group-level only — see file (VCNL4030X01 / VCNL3030X01 / VCNL4040, not per-part, not 1:1) | 2025-11-28 | 2026-05-29 |
Sample rows are copied verbatim from the paid dataset file (the paid file also carries the issue date and a source URL per record, grouped by PTN).
Full file: all 420 discontinuance records from Vishay's 13 PTNs above, plus buyer notes and a coverage-gaps section. Clean Markdown, compiled 2026-10-22.
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Facts compiled from Vishay's published Product Termination Notifications; not affiliated with or endorsed by Vishay Intertechnology. Trademarks belong to their owners. Verify the current status of any specific part against the original PTN before committing a design or a purchase order.