Marking B4?

hi Peter, have looked a lot around but i couldn't found what stand for marking B4.
could you please help me?

thanks a lot,

Michele

This topic has been closed for replies.

Best answer by Peter BENSCH

This is the obsolete fast recovery rectifier SMBY01 in package SMB, which can be replaced by the (faster) alternative STTH1R04U .

Hope that helps?

Good luck!
/Peter

Technical Moderator

Welcome @_mik81, to the community!

Can you please upload a photo so that the marking can be recognised?

Thanks and regards

/Peter

Associate

hi Peter,

ST E
B4

Z939

thanks a lot

Technical Moderator

This is the obsolete fast recovery rectifier SMBY01 in package SMB, which can be replaced by the (faster) alternative STTH1R04U .

Hope that helps?

Good luck!
/Peter

Associate

wow, thank you so much!

Sign up