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我们购买的LM1084ISX-3.3的稳压器过回流焊后部分引脚由银色变为金色，用烙铁焊接后也是一部分引脚变为金色，我想问下这是什么原因，对功能有无影响？
板子焊接完成后清洗了吗？不会是松香吧。
Hi,您的意思是过炉时的高温让镀锡层氧化了？现在的金色是氧化反应形成物质的颜色吗？
