This part is a kind of semiconductor called PY80.

Function of this product has Diode.

Manufacturers : Philips

Image and pinout :

Some of the text within the PDF file :

page 1 2 3 4 5 6 PY80 sheet 1 1 2 2 A FP date 1951.11.11 1953.12.12 1951.11.11 1953.12.12 1951.02.02 2000.06.02 [ ... ]

PY80 PDF Datasheet Download