This part is a kind of semiconductor called YPT78704.

Function of this product has Relay.

Manufacturers : Schrack Tech

Image and pinout :

Some of the text within the PDF file :

RELEJI W MINIJATURNI RELEJI TIP PT ..stranica 296 W MULTIMODE RELEJI TIP MT ..stranica 300 W RELEJI SNAGE TIP RM .stranica 303 W RELEJI SNAGE ZA TISKANE PLO»ICE TIP RT stranica 306 W USKI MREÆNI RELEJ TIP SNR ...stranica 308 W VREMENSKI RELEJI SERIJE ZR ..stranica 309 W UZIDNI MULTIFUNKCIJSKI RELEJI . [ ... ]

YPT78704 PDF Datasheet Download