... quartz crystals, filters, resonators, oscillators, TCXO, VCXO, SAW device, following is our product list:-HC49 series (HC49U/HC49S/HC49SMD, 49SMD 4pads)-SMD ... *2.5mm)-Ceramic resonator & filter(ZTT,ZTA,ZTB,CRB)-SAW DEVICE(TO39,F11,QCC8C,SM2,5*3.5mm3.8*3.8mm ...