This part is a kind of semiconductor called 20SQ045.

Function of this product has SCHOTTKY BARRIER RECTIFIER.

Manufacturers : SANGDEST MICROELECTRONICS

Image and pinout :

Some of the text within the PDF file :

SANGDEST MICROELECTRONICS 20SQ045 Technical Data Data Sheet N0006, Rev. A Green Products 20SQ045 SCHOTTKY BARRIER RECTIFIER Applications： z DC-DC converters z AC adapter z High frequency rectification circuit z Bypass diodes z Photovoltaic Solar cell Protection Schottky Rectifier Features: z Super-high speed & low noise switching z Low voltage drop z This is a Pb − Free Device z All SMC parts are traceable to the wafer lot z Additional testing can be offered upon request Mechanical Dimensions: In Inches/ mm R-6 • Weiqi Street, Airport Development Zone, Jiangning District, Nanjing, China 211113  (86) 25-87123907 • • FAX (86) 25-87123900 • World Wide Web Site - http://www.sangdest.com.cn • E-Mail Address - sales@ sangdest.com.cn • SANGDEST MICROELECTRONICS Technical [ ... ]

20SQ045 PDF Datasheet Download