This page indexes the Bourns discontinuations we have verified from the manufacturer's own lifecycle and discontinuance notices: 3,071 records across 3 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 end-of-life reference for Bourns — 1,498 verified records from Bourns' own Product Obsolescence Memos: exact part number, recommended replacement exactly as printed where one is printed per part, and issue / last-time-buy / last-ship dates, across 8 memos (N2552REV Riedon power resistors 711, N2553REV Riedon shunts/fuses/fuseblocks 417, IC24014 magnetics 255, IC219954REV custom magnetics 96, T2510 Trimpot custom products 10, ESD2424 TVS diodes 5, SC2416 encoders 3, FU2403 TCS protector 1), January 2022 to September 2025. 525 records name a per-part Bourns replacement. 1,498 verified records; 6-record free sample; full Markdown file 0.01 USDC via x402.
Bourns end-of-life reference v2 — 974 verified discontinued gas discharge tube orderables from the two Bourns-authored obsolescence memos GDT2501REV2 (non-lead-free series, 538 records) and GDT2605 (standard and non-standard series, 436 records), opened in full on bourns.com: 578 records carry a printed per-part recommended replacement; zero overlap with Bourns v1. 974 verified records; 8-record free sample; full Markdown file 0.01 USDC via x402.
Bourns end-of-life reference v3 — 599 verified discontinued orderables from the three Bourns-authored obsolescence memos in neither Bourns v1 nor v2, opened in full first-hand: N2543REV Riedon custom resistors (515 records), SPD2602 surge protection devices (55 records; last time buy 2026-09-30 still open) and OSP2311 Model 1965 coaxial surge protectors (29 records). No memo names a replacement — shipped as printed. 599 verified records; 8-record free sample; full Markdown file 0.01 USDC via x402.
How can I check whether a Bourns part is discontinued?
Check the ordering part number against the manufacturer's published lifecycle / discontinuance notices. This page indexes the 3,071 Bourns 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 Bourns-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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