Seiko精工 Q-SC20S03220C5AAAF石英晶体 SC-20S两脚贴片晶振 ±20ppm ¥0.60 Q-SC20S0321070CAFF仪器仪表晶振 Seiko精工SC-20S谐振器 2012mm ¥0.60 Seiko精工 Q-SC16S0320570CADF编码说明 SC-16S无源晶振 1610mm晶体 ¥0.60 精工32.768K晶体 SC-16S数据手册 Q-SC16S0321070CAFF无源贴片晶振 ¥0.60 Seiko现货 Q-SC16S03205C5AAAF晶振详情 SC-16S晶体 32.768K谐振器 ¥0.60 Q-SC16S0322070CAAF智能手机晶振 Seiko精工SC-16S晶体 1610谐振器 ¥0.60