This part is a kind of semiconductor called HLD133D.
Function of this product has 220V SERIES TRANSISTORS.
Manufacturers : HF-SEMI
Image and pinout :

Some of the text within the PDF file :
220V系列晶体管/(220V SE RI ES TRAN SI STORS ) HL D1 33D 特点:耐压高 开关速度快 安全工作区宽 符合ROHS指令 FEATURES: HIGH VOLTAGE CAPABILITY HIGH SPEED SWITCHING WIDE SOA ROHS COMPLIA 应用:节能灯 电子镇流器 电子变压器 APPLICATION: FLUORESCENT LAMP ELECTRONIC BALLAST ELECTRONIC TRANSFORMER 最大额定值:(Tc=25℃) Absolute Maximum Ratings (Tc=25℃) 参数 PARAME T ER 集 电 极-基 极 电 压 Collector-Base Voltage 集 电 极-发 射 极 电 压 Collector-Emitter Voltage 符号 SYMB OL VCBO VCEO 发 射 极-基 极 电 压 Emitter-Base Voltage VEBO 集电极电流 Collector Current 集电极耗散功率 Total Power Dissipation IC PC 最高工作温度 Junction Temp erature Tj 贮存温度 Storage Temp erature TSTG [ ... ]
HLD133D PDF Datasheet Download
