The CAP CER 5.1 PF 25V C0G/NP0 0402 is a type of ceramic capacitor with specific characteristics. It has a capacitance value of 5.1 picofarads ± 0.1 picofarads and operates at a voltage rating of 25 volts. The C0G/NP0 designation indicates that it belongs to the C0G (NP0) temperature coefficient class, which is known for its high stability across varying temperatures. This capacitor has a metric case size of 0402 (1005 in imperial measurement), making it suitable for compact applications.