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TPS61030: 关于接地散热的焊盘外观问题咨询

Part Number: TPS61030

购买物料为:TPS61030PWPR  ;匹配图纸对照实物焊盘发现底部外形存在差异(没有两侧的凸点),经过CCD显微镜放大后发现对应位置已经脱落没有锡盘了,底部是接地的散热焊盘。帮忙确认下后续的货是否都是这样还是批次问题?大货使用是否会有风险?