有一些新的发现,如下附件器件LMZ31704 表面丝印66V与55V是指什么意思 ,现在大批量生产时,66V生产没有问题,但用55V生产两次的电源短路不良率都非常高。这两个丝印代码是指什么意思。另为什么器件会有1860的丝印,18不是指年份吗?
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Hi
66这2个数字代表年月,
186代表 Lot code,0 代表Site code