Hi, I have a question about the CMOS Op-Amp TSV630. The package is SOT-23-6, but I can't find the pin#1 marking. How can I recognize pin#1 ?

[HIwas.3]

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[Peter BENSCH]

Welcome, @HIwas.3​, to the community!

usually pin 1 is marked with a small dimple.

The housing of the TSV630ILT in SOT23-6 should also have the marking "K108", whereby pin 1 is at the bottom left if you read this text normally in the top view.

If the problem is resolved, please mark this topic as answered by selecting Select as best. This will help other users find that answer faster.

Good luck!

/Peter

[HIwas.3]

Thank you Peter.

I understood Pin 1 as the bottom left of "K108".

However, when I magnified the surface of the IC with a microscope, I could not find the small dimple in the Top View.