This part is a kind of semiconductor called SS34A.
Function of this product has (SS32A - SS310A) Surface Mount Schottky Barrier Rectifier.
Manufacturers : SIYU
Image and pinout :
Some of the text within the PDF file :
SIYU R 表面安装肖特基二极管 反向电压 20 ---100 V 正向电流 3.0 A 特征 Features SMA SS32A .. SS310A Surface Mount Schottky Barrier Rectifier Reverse Voltage 20 to 100 V Forward Current 3.0 A ·大电流承受能力。High Current Capability ·正向压降低。Low Forward Voltage Drop .114(2.90) .098(2.50) .062(1.60) .055(1.20) ·高温焊接保证 High temperature soldering guaranteed: 260℃/10 秒, 0.375" (9.5mm)引线长度。 260℃/10 seconds, 0.375" (9.5mm) lead length, ·引线可承受5 磅 (2.3kg) 拉力。 5 lbs. (2.3kg) tension ·引线和管体皆符合RoHS标准 。 Lead and body according with RoHS standard .181(4.60) .157(4.00) .012(0.305) .006(0.152) .096(2.44) .078(2.00) .060(1.52) .030(0.76) .208(5.28) .118(4.80) .008(0.203) .002(0.051) �� [ ... ]