This part is a kind of semiconductor called 1SS200.
Function of this product has DIODE (ULTRA HIGH SPEED SWITCHING APPLICATION).
Manufacturers : Toshiba Semiconductor
Image and pinout :

Some of the text within the PDF file :
TOSHIBA Diode Silicon Epitaxial Planar Type 1SS200 Ultra High Speed Switching Application 1SS200 Unit: mm z Low forward voltage : VF (3) = 0.92V (typ.) z Fast reverse recovery time : trr = 1.6ns (typ.) z Small total capacitance : CT = 2.2pF (typ.) Absolute Maximum Ratings (Ta = 25°C) Characteristic Symbol Rating Unit Maximum (peak) reverse voltage VRM 85 V Reverse voltage VR 80 V Maximum (peak) forward current IFM 300 (*) mA Average forward current Surge current (10ms) Power dissipation IO IFSM P 100 (*) 2 (*) 200 mA A mW Junction temperature Storage temperature range Tj 125 °C Tstg −55~125 °C JEDEC JEITA ― ― Note: Using continuously under heavy loads (e.g. the application of high TOSHIBA 1-4E2B temperature/current/voltage and the significant change [ ... ]
1SS200 PDF Datasheet Download
