This is a crystal resonator from KDS Electronics with the part number 1N225000AB0Q. It is a SMD-3225 RoHS compliant device, with a frequency of 25MHz and a tolerance of ±10ppm. The resonator is designed to be used with surface mount technology, and can be used for timing, high-frequency filtering applications, and more. This is a widely used part, with components found in many devices.