The CAP CER 33PF 63V C0G/NP0 0603 is a ceramic capacitor with a capacitance of 33 picofarads and a voltage rating of 63 volts. It has a temperature coefficient of C0G or NP0, indicating it operates within a narrow range of capacitance despite changes in temperature. The capacitor's dimensions are 0603 (or 1608 metric), making it suitable for surface mount applications.