This part is a kind of semiconductor called 1N540.Function of this product has Diode Switching 400V 3A 2-Pin SOD-64 Ammo. Manufacturers : New Jersey Semiconductor Image and pinout : Some of the text within the PDF file : [ ... ] 1N540 PDF Datasheet Download Metablog 2017/04/26 15:42 2017/04/26 15:42