This part is a kind of semiconductor called LM7805.

Function of this product has 1.5A Positive Voltage Regulator.

Manufacturers : ETC

Image and pinout :

Some of the text within the PDF file :

Bay Linear Inspire the Linear Power 1.5A Positive Voltage Regulator Description The Bay Linear LM78XX is integrated linear positive regulator with three terminals. The LM78XX offer several fixed output voltages making them useful in wide range of applications. When used as a zener diode/resistor combination replacement, the LM78XX usually results in an effective output impedance improvement of two orders of magnitude, lower quiescent current. The LM78XX is available in the TO-252, TO-220 & TO-263 packages, LM78XX Features • • • • • • • • Output Current of 1.5A Output Voltage Tolerance of 5% Internal thermal overload protection Internal Short-Circuit Limited No External Component Output Voltage 5.0V, 6V, 8V, 9V, 10V, 12V, 15V, 18V, 24V Offer in plastic TO-252, TO-220 & TO [ ... ]

LM7805 PDF Datasheet Download