Lifecycle score 0/100 (at_risk).
Status: obsolete
Diodes Incorporated datasheet explicitly marks the part "OBSOLETE – PART DISCONTINUED" with no alternate part. Central Semiconductor Product Discontinuation Notices confirm discontinuance of the 1N4728A family. Datasheet maintenance ceased ~2007–2010 (Rev. 20 final). No manufacturer-recommended successor exists, and only remnant stock remains in legacy distributor channels.