The specified component is a CAP CER 91PF 50V C0G/NP0 0603. It has a capacitance value of 91 picofarads with an accuracy tolerance of ±20% and can withstand a maximum operating voltage of 50 volts. The device features a ceramic dielectric and belongs to the C0G, also known as NP0 type, in the 0603 (1608 metric) package size.