This part is a kind of semiconductor called 3DD13007K.

Function of this product has HIGH VOLTAGE FAST-SWITCHING NPN POWER TRANSISTOR.

Manufacturers : JILIN SINO-MICROELECTRONICS

Image and pinout :

Some of the text within the PDF file :

R NPN 型高压功率开关晶体管 HIGH VOLTAGE FAST-SWITCHING NPN POWER TRANSISTOR 3DD13007K 主要参数 IC VCEO PC(TO-220) MAIN CHARACTERISTICS 8A 400V 80W 封装 Package 用途 z z z z z 节能灯 电子镇流器 高频开关电源 高频功率变换 一般功率放大电路 APPLICATIONS z Energy-saving ligh z Electronic ballasts z High frequency switching power supply z High frequency power transform z Commonly power amplifier 产品特性 z 高耐压 z 高电流容量 z 高开关速度 z 高可靠性 z 环保（RoHS）产品 FEATURES z High breakdown voltage z High current capability z High switching speed z High reliability z RoHS product 订货信息 ORDER MESSAGE 订 货 型 号 Order codes 3DD13007K-O-Z-N-C 印 记 否 无卤素 Halogen Free NO 封 装 包 装 Marking [ ... ]

3DD13007K PDF Datasheet Download