PESD0402-140

PESD0402-140 is a Littelfuse polymer ESD suppressor in the 0402 chip case, verified against the maker’s PESD series datasheet: the numbering rule makes the 140 suffix the 14 V DC operating-voltage designator for this code. Verified figures from the maker’s ratings table: an operating voltage of 14 V DC, a typical TLP trigger voltage of 250 V, a TLP clamping voltage of 40 V after 30 ns, capacitance of 0.25 pF typical, and leakage current below 0.01 µA typical and 10 µA maximum. The selection point is the quarter-picofarad loading: a protection element that can sit on a high-speed data or RF line — HDMI, USB and antenna paths are the family’s named territory — without measurably loading the edge it guards. Littelfuse publishes no per-code lifecycle field for this series, so none is claimed here. Selection advice: this is a polymer suppressor, not a silicon TVS diode — its trigger and clamp behaviour follows the TLP figures above, and it should not be substituted into a position qualified on a diode’s breakdown row without re-checking the clamp. Parameters verified against the Littelfuse PESD series datasheet.