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您好，我们分别买了这三个型号，批号如下，三个型号都存在引线根部表面有裂纹且暴露基底金属。请问是什么原因？是否影响使用？
SN74S10N，批号1710+(73AFCGM)
SN75188N，批号2429+(47AD74M)
SN74LS32N，批号2236+(29A59KM)
质量问题，请联系客服部门
www.ti.com.cn/.../contact-us.html
