This part is a kind of semiconductor called BS-A514RD.

Function of this product has (BS-Axxx) Single Digital LED Displays.

Manufacturers : American Bright Optoelectronics

Image and pinout :

Some of the text within the PDF file :

Single Digit LED Displays 16-Segment, 7-Segment, + 1 Overflow Part No. Digit Size Common Anode BS-A561RD BS-A565RD BS-A565RE BS-A562RD BS-A563RD BS-A564RD BS-A566RD 0.50" BS-A56DRD Alpha-Numeric BS-A561RD-A Displays BS-A565RD-A BS-A565RE-A BS-A562RD-A BS-A563RD-A BS-A564RD-A BS-A566RD-A BS-A56DRD-A BS-A531RD BS-A535RD BS-A535RE BS-A532RD BS-A533RD BS-A534RD 0.52" Single-Digit BS-A536RD BS-A53DRD BS-A541RD BS-A545RD BS-A545RE BS-A542RD BS-A543RD BS-A544RD BS-A546RD BS-A54DRD BS-A511RD BS-A515RD BS-A515RE BS-A512RD BS-A513RD BS-A514RD BS-A516RD BS-A51DRD Common Cathode BS-C561RD BS-C565RD BS-C565RE BS-C562RD BS-C563RD BS-C564RD BS-C566RD BS-C56DRD BS-C561RD-A BS-C565RD-A BS-C565RE-A BS-C562RD-A BS-C563RD-A BS-C564RD-A BS-C566RD-A BS-C56DRD-A BS-C531RD BS-C535RD BS-C535RE BS-C532RD BS-C533RD [ ... ]

BS-A514RD PDF Datasheet Download