This part is a kind of semiconductor called FND507.

Function of this product has (FND500 - FND567) 7-Segment Numeric LED Displays.

Manufacturers : ETC

Image and pinout :

Some of the text within the PDF file :

Red GaAsP 0.5-Inch 7-Segment Numeric LED Displays Optoelectronic Products General Description The FND500, FND507, FND560 end FND567 are red GaAeP single-digit 7-Segment LED displays with a 0.5-inch character height. These displays are designed for applications in which the viewer is within twenty feet of the display. Low Forward VoltageTypically V F = 1.7 V Fits Standard DIP Sockets with 0.6-Inch Pin Row Maximized Contrast Ratio With Integral Lens Cap Horizontal Stacking 0.6-Inch Minimum, 1-inch Typical FND560/567 Suitable For Use In High Ambient Light FND500 Common Cathode, Right-Hand Decimal Point FND507 Common Anode, Right-Hand Decimal Point FND560 Common Cathode, Right-Hand Decimal Point, High Brightness FND567 Common Anode, Right-Hand Decimal Point, High Brightness Absolute Maximum [ ... ]

FND507 PDF Datasheet Download