SMD7050石英晶体谐振器Crystalresonator 特点Feature ROHSCompliant(PbFree) SmallSMDsealpackingcrystalunits Excellentshockandheatresistance Higherfrequencystabilityandreliability Highprecisioncharacteristiccoveringuptohighfrequencyrange Overallthroughtopgroundedmetalcoverandbottomcushion