ESD5Z3.3T1G

ESD5Z3.3T1G is an onsemi single-line ESD protection diode in SOD-523 (SC-79), device marking ZE, tape and reel — board-level protection for 3.3 V data lines, keypads and portable interfaces in the smallest common footprint. The figures are read from this device's own row of the maker's series table, not from its 5.0 V sibling: working peak reverse voltage 3.3 V, reverse leakage 0.05 µA maximum at that voltage, breakdown 5.0 V minimum at a 1 mA test current, clamping 8.4 V typical at IPP = 5 A and 14.1 V maximum at IPP = 11.2 A (8/20 µs, TA = 25 °C) — two different pulse points, not a typ/max pair at one current — peak pulse power 158 W, and capacitance 105 pF typical. Selection advice: the 105 pF capacitance suits low-speed and control lines; for high-speed data (USB, HDMI-class edges) step to a sub-picofarad array instead — capacitance is the first filter for any ESD part, before the clamping numbers. The 5.0 V row of the same series shares some figures with this one (the 0.05 µA leakage class and the 1 mA test basis) but differs on working voltage, breakdown and clamping, so the 3.3 in the code is a specification, not a label. onsemi status wording for this code was not captured for this record, so no status is claimed here — the offered lot is confirmed against your requirement before quotation. Parameters verified against the onsemi ESD5Z series datasheet.