The specified component is a 15 pF ceramic capacitor with capacitance tolerance of ±5 and a maximum operating voltage of 50 volts. It has a metric size designation of 1608, which corresponds to the 0603 imperial measurement. This capacitor falls within the C0G/NP0 class, which denotes its temperature coefficient and stability characteristics. The "1B" classification refers to specific properties or requirements associated with this component.