The CAP CER 39PF 50V C0G/NP0 0402 is a 39 picofarad ceramic capacitor with a working voltage of 50 volts. It has a tolerance of ±1% and is available in the 0402 package size, also known as metric size 1005. This capacitor belongs to the C0G or NP0 class, which is known for its stability and low temperature coefficient.