Found 4 alternatives for C1801Y G/W by American Opto Plus LED. Display Modules Led Character And Numeric — 10-DIP (1.900", 48.26mm).
DISPLAY 7SEG 1.8" SGL RED 18DIP
DISPLAY 7SEG 1.8" SGL GRN 18DIP
DISPLAY 7SEG 1.8" SGL RED 18DIP
DISPLAY 7SEG 1.8" SGL GRN 18DIP