A high-precision ceramic capacitor with a capacitance of 1.9 pF and a tolerance of ±0.05 pF. It is rated for 50 volts and has a metric size of 0201 (equivalent to 0603 in imperial units). The C0G/NP0 designation indicates that it belongs to the C0G/NP0 class of ceramic capacitors, which are known for their high stability and low loss characteristics.