SS8050

SS8050 is an NPN transistor from CJ (Jiangsu Changjing) in SOT-23, verified against the Changjing datasheet. The figures here are the H-rank figures of that datasheet (hFE ranks L 120 to 200, H 200 to 350, J 300 to 400): collector current of 1.5 A maximum — three times the S8050 row in this catalog — an hFE(1) of 200 to 350 at 100 mA collector current, collector-emitter saturation voltage of 0.5 V maximum at 800 mA and a transition frequency of 100 MHz. No package marking is stated for this code: the captured Changjing material does not print one for SS8050, and none is inferred from sibling codes. Selection advice: the SS8050 is the higher-current member of the pair; where a design was qualified on the S8050 at a few hundred milliamps, the swap is a current-headroom change rather than a gain change, and the saturation figure at 800 mA is the line to check. Keep this code separate from the S8550 PNP series, which is a different polarity documented by a different maker. Parameters verified against the Changjing SS8050 datasheet (H rank).