Difference Between Order Numbers Marked "E1" and "E2" in FR Family FR81S MB91520/ MB91550/ MB91570/ MB91580/ MB91590 Series MCUs - KBA217986

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Question:

What is the difference between E1 and E2 in the order number?

 

Answer:

This denotes the composition of lead plating. The difference between E1 and E2 is as follows.

E1:Bi-Sn
E2:Pure Sn (100%)