This part is a kind of semiconductor called WTV020-SD-16P.
Function of this product has MODULE.
Manufacturers : Waytronic
Image and pinout :

Some of the text within the PDF file :
WTV020-SD MODULE WTV020-SD-20S and WTV020-SD-16P 1.PRODUCT FEATURES ..................................................................................................................................................... 2 3.APPLICATION DIAGRAM .................................................................................................................................................. 3 4.APPLICATIONS ................................................................................................................................................................. 3 5.PINS .................................................................................................................................................................................. 4 5.1.WTV020-SD-20S ........................ [ ... ]
WTV020-SD-16P PDF Datasheet Download
