The part number for this capacitor is 1808Y2000472FCT. It's a CAP CER 4700PF 200V C0G/NP0 with a tolerance of ±1% and a capacitance value of 4700 picoFarads. This ceramic capacitor is rated at 200 volts and has the designator code (1B). The metric designation for this component is 1808, which corresponds to the size in millimeters: 4.5mm x 2.5mm. It's manufactured by Adibuja.