The BC56-11EWA is a .56" 3 Digit Red LED Display.
Specs:
Number of Characters: 3
Size / Dimension: 1.480" H x 0.748" W x 0.319" D (37.60mm x 19.00mm x 8.10mm)
Digit/Alpha Size: 0.56" (14.20mm)
Display Type: 7-Segment
Common Pin: Common Cathode
Color: Red
Voltage - Forward (Vf) (Typ): 2V
Current - Test: 20mA
Millicandela Rating 5.8mcd
Wavelength - Peak: 627nm
Power Dissipation (Max): 75mW
Package: 28-DIP (0.600", 15.24mm)