This page indexes the Littelfuse discontinuations we have verified from the manufacturer's own lifecycle and discontinuance notices: 1,661 records across 4 datasets, each with its notice, its last-time-buy and last-shipment dates where published, and — where the manufacturer printed one — the recommended replacement.
Electronic component and commercial-vehicle end-of-life reference for Littelfuse — 424 verified records from Littelfuse's own obsolescence notices: exact part number, replacement / alternative exactly as printed where one is printed per part, and issue / last-time-buy / last-ship dates, across 10 notices (ADC fuse holders & specialty fuses 238 unique, PCN C0586 DC contactors 86, LFPCN 41521-1 AK-series TVS 49, EDC magnetic sensors 29, Hall sensors 7, IXYS ICD solid-state relays 6 + 3, LFPCN-C0510 4, plus two single-record notices), December 2020 to August 2025. Includes the AK-series set whose last shipment is 30 December 2026. 424 verified records; 6-record free sample; full Markdown file 0.01 USDC via x402.
End-of-life reference for the two Littelfuse notices held as v2 slices at the v1 build — 511 verified records: PCN C0557, the Commercial Vehicle Products low-sales obsolescence mega-notice (481 records; 415 with a last time buy to 11 April 2025, 66 obsolete immediately; 110 records name a specific nearest alternative), and LFPDN250331-01, IXYS UK Westcode's termination of the symmetrical GTO thyristor range (30 records, immediate effect, no alternatives offered). Extracted by printed column coordinates and cross-validated against an independent rendering of the same notice — identical 481-part lists. 511 verified records; free sample; full Markdown file 0.01 USDC via x402.
End-of-life reference for Littelfuse notice PCN V0525 — all 470 verified configured item numbers (RCV-…) obsoleted on the V Series switch product lines (Combi Contacts, Contura VII options), each with the Search Text configuration code Littelfuse prints for it. Last time buy closed 1 October 2025; the notice prints no per-item replacement. 470 verified records; free sample; full Markdown file 0.01 USDC via x402.
End-of-life reference for the second grid of Littelfuse notice ADC_20250623_002 (19 June 2025) — all 256 verified unique discontinued fuse-holder and specialty-fuse part numbers from the notice's page-3 grid (256 printed cells, 256 unique). Immediate EOL, no new orders, no replacement named for any part. 256 verified records; free sample; full Markdown file 0.01 USDC via x402.
How can I check whether a Littelfuse part is discontinued?
Check the ordering part number against the manufacturer's published lifecycle / discontinuance notices. This page indexes the 1,661 Littelfuse 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 Littelfuse-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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