TLC555M: TLC555MJGB 引脚镀层材质问题

Part Number: TLC555M

TLC555MJGB Hello, I'm sorry to bother you, but I have a problem and would like to ask for help to solve it. I would like to ask why there are some marks on this material pin, is it because your company's factory testing has caused some residual test marks? There is also why the position of the incision at the bottom of the pin is fully plated and wrapped, rather than those with copper leakage material? Is it because it's military material? Please see the picture for details and hope to get a reply. Thank you very much!

I mainly want to know whether these tinning pins are normal phenomena! Have a nice day

  • Hi

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