This part is a kind of semiconductor called 1N3938.

Function of this product has (1N3938 - 1N3942) 2A Silicon Rectifier.

Manufacturers : Central Semiconductor Corporation

Image and pinout :

Some of the text within the PDF file :

Central TM Semiconductor Corp. 145 Adams Avenue Hauppauge, NY 11788 USA Tel: (631) 435-1110 • Fax: (631) 435-1824 www.centralsemi.com [ ... ]

1N3938 PDF Datasheet Download