Can you help to confirm if the part of AD2S44-TM11B were oxidized?

Hi,

 

We bought the part of AD2S44-TM11B from you, and found their pins have black area and there were many xidized white spots on surface.

Can you help to confirm if the parts were oxidized? and whether the oxidation position will affect the usage?

 

Looking forward to your reply, thank you.

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