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Help identifying chip marked 311 / EZ619

facoang
Associate

WhatsApp Image 2026-03-03 at 7.30.49 PM.jpeg

hello, I don't reconiaze the PN number of attached picture

1 ACCEPTED SOLUTION

Accepted Solutions
AScha.3
Super User

Its an LM311 , by ST:

LM311D/DT SO-8 Tube or Tape & reel marking : 311

 

https://cdn-reichelt.de/documents/datenblatt/A200/CD0000107.pdf

 

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2 REPLIES 2
TDK
Super User

311

EZ619

 

Looks like the magic smoke left. I can't find anything about it. Maybe it's a custom part for a manufacturer. What is this from?

If you feel a post has answered your question, please click "Accept as Solution".
AScha.3
Super User

Its an LM311 , by ST:

LM311D/DT SO-8 Tube or Tape & reel marking : 311

 

https://cdn-reichelt.de/documents/datenblatt/A200/CD0000107.pdf

 

If you feel a post has answered your question, please click "Accept as Solution".