11PWRPACKOPA549S900KHZPOWER¥1100去看看猛人数码专营店发布了OPA549S【IC OPAMP POWER 900KHZ 11PWRPACK】现货原装11PWRPACKOPA549S¥120.40去看看金圣实业企业店发布了【 全新原装现货 】 OPA549S IC OPAMP POWER 1 CIRC 11PWRPACK