This is a 24 pF ceramic capacitor with the designation CAP CER 24PF 150V C0G/NP0 0505. It has a capacitance of 24 picofarads ±10% and can handle voltages up to 150 volts. The capacitor's construction materials are specified as C0G or NP0 (1B), indicating a temperature-compensating type, and its case size is identified as 0505 in metric units (1313 in imperial measurements).