The part number is CAP CER 13PF 250V C0G/NP0 0603, referring to a specific ceramic capacitor with the following characteristics: it has a capacitance value of 13 picofarads, a tolerance of ±5%, and operates at a voltage rating of 250 volts. This capacitor is classified as a C0G (also known as NP0) type, which is commonly used for its stable and predictable capacitance values across temperature changes. It is packaged in the 0603 (or 1608 metric) case size.