The specified capacitor is a CAP CER 15PF 250V C0G/NP0 1812. It has an equivalent capacitance of 15 picoFarads with ±1% tolerance and operates at 250 Volts DC. This ceramic capacitor belongs to the C0G (NP0) class, which is known for its stable and predictable properties over a wide temperature range, making it suitable for applications where precision and reliability are crucial.