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电机驱动芯片DRV8873HPWPRQ1来料背面氧化发黄

          我司在昴氏电子网站上购买2019年8月26日到料的TI芯片DRV8873HPWPRQ1共30PCS,到料发现芯片背面有氧化发黄现象,请回复是否是品质问题。