The crystal unit that realized small package and highly accurate frequency. Based on Murata\'s excellent package technology and high grade quartz crystal elements, achieving small size and high accuracy resonators. Features 1. The series is available in the applications to be necessary for high accuracy resonator. Especially, it is the best for the communication clocks such as S-ATA and USB2.0. 2. The resonator is extremerly small size (2.0 x 1.6 x 0.7 (mm)) , and contribute to reduction in mounting a