DSK34

DSK34 is a Schottky barrier rectifier from Zhuhai HongJiaCheng in SOD-123FL, package marking K34, verified against the maker’s datasheet for this code. Verified figures: a 40 V repetitive peak reverse voltage, average forward current of 3.0 A, non-repetitive surge current of 80 A, forward voltage of 0.55 V maximum at 3 A, reverse leakage of 0.2 mA maximum and junction capacitance of 250 pF typical. The junction temperature range on this page follows the maker’s JAN.2024-A1 revision, −55 °C to +150 °C; the earlier MAY.2023-A0 printing of the same datasheet states −55 °C to +125 °C, and the revision is named here so the offered lot’s document can be matched to it. The selection point is a 3 A, 40 V Schottky in the flat SOD-123FL body, for output rectification and reverse-polarity protection where a taller case does not fit. Selection advice: the forward-voltage figure is a maximum at the full 3 A — budget conduction loss at your actual load current and board temperature, not at the headline rating. Note on attribution: the candidate pool labelled this line R+O (HongJiaCheng); the figures here are HongJiaCheng’s own. Parameters verified against the HongJiaCheng DSK34 datasheet (JAN.2024-A1).