1年 石英晶体; 谐振器; 滤波器; 陶瓷晶体; 声表谐振器; 声表滤波器; 表晶; VCXO; TCXO; SMD; CRYSTAL RESONATOR; FILTER; CERAMIC RESONATOR; CERAMIC FILTER; TUNING FORK CRYSTAL; SAW RESONATOR; SAW FILTER; 5X7; 6X3.5; 2X6;