The X1C026000B81H-V is a surface mount crystal resonator made by Harmony. It has a frequency of 26MHz, a tolerance of ±10ppm, and is RoHS compliant. The size of this ceramic resonator is 1.65x1.25mm. It is designed for use in frequencies up to 10 MHz, making it ideal for use in computers, telecommunications equipment, wireless communications, instrumentation, automotive and aerospace applications.