So after staring at a few ICs today, I was wondering what the "e3" or "e4" stands for on the top of an IC. For example, here is an e3:
Electronic – What does the e3 or e4 printed on an IC mean
componentsmarkings
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Best Answer
It is regarding the lead content or plating finish. Here is an excerpt from IPC/JEDEC J-STD-609: