Capacitor, ceramic, 100 nF

Part number	Datasheet
Farnell: 1100533	AVX, SR205E104MAR
Mouser: 75-1C10Z5U104M050R	Vishay, 1C10Z5U104M050R
RS: 699-5027	AVX, SR205E104MARTR

This component can be fitted either way around.

This component is typically used for supply decoupling. For digital circuits operating in the range of 7 to 18 MHz (as generally used by the designs on this site) the use of very cheap ceramic capacitors within the range of about 30 to 200 nF is acceptable.