Hi, we purchased STEF033PUR and got deveives with labeling "EF33" - based on data sheet this lable doesn't exist - lable should be "EF03" - can you clarify that?

Hi, we purchased LDK220U50R and received devices with a marking of: 50306.We didn't find any documentation which explains this marking. Did e received the right part number - please tell us, which marking has to be at LDK220U50R. Thank you