This part is a kind of semiconductor called S25.

Function of this product has Schottky Rectifiers.

Manufacturers : Fairchild Semiconductor

Image and pinout :

Some of the text within the PDF file :

SS22-S210 SS22 - S210 Features • • • Glass passivated junctions. High current capability, low VF. For use in low voltage, high frequency inverters free wheeling, and polarity protection applications. SMB/DO-214AA COLOR BAND DENOTES CATHODE Schottky Rectifiers Absolute Maximum Ratings* Symbol VRRM IF(AV) IFSM Tstg TJ TA = 25°C unless otherwise noted Parameter 22 Maximum Repetitive Reverse Voltage Average Rectified Forward Current .375 " lead length @ TA = 75°C Non-repetitive Peak Forward Surge Current 8.3 ms Single Half-Sine-Wave Storage Temperature Range Operating Junction Temperature 20 23 30 24 40 Value 25 50 26 60 2.0 50 -65 to +150 -65 to +125 28 80 29 90 210 100 Units V A A °C °C *These ratings are limiting values above which the serviceability of any semiconductor de [ ... ]

S25 PDF Datasheet Download