This is a 0.015 µF ceramic capacitor with a voltage rating of 100 V and a metric package size of 1808 (also known as 4520). It belongs to the C0G or NP0 class, which is characterized by its low temperature coefficient and high stability. The tolerance is ±10% and it falls under the category of Class I capacitors, commonly referred to as ceramic capacitors in a specific configuration, known as the 1B type.