Item Name:SMD Quartz Resonator Size: SMD0804/0603/0503/0402 Frequency range:8~80MHz,8~80MHz,12~50MHz,12~26MHz This chip crystal unit is for high precision usage such as mobile telephone,BP,pagers and can be mounted automaticly.It is well seamed,and is thinner and smaller in appearance. Size: SMD0804/0603/0503/0402