B340A-13-F

B340A-13-F is a Diodes Incorporated Schottky barrier rectifier in SMA (DO-214AC), supplied on a 5,000-piece reel (the -13-F code) — for output rectification, reverse-polarity protection and freewheeling on low-voltage rails. The figures are the selection point: 40 V repetitive peak reverse voltage and 3.0 A average forward current at a terminal temperature of 100 °C, with a forward drop of 0.50 V maximum at 3.0 A and 25 °C. Reverse leakage is 0.5 mA maximum at the rated voltage and 25 °C, and junction capacitance is 200 pF typical at VR = 4 V and 1 MHz. The code follows the maker's B3XXA-13-F ordering form with XX = 40, confirmed character-for-character. Selection advice: the current datasheet is Rev. 19-2 of April 2026; the family's 2023 PCN-2623 end-of-life notice is worded for select products and does not name this code, so it must not be read as this part's status — and its silence does not prove an active status either. No current lifecycle status was verified for this code in this review; supply is confirmed per order against the exact code. Parameters verified against the Diodes DS30891 Rev. 19-2 datasheet.