While this article covers 95% of what you need, you should always keep the official PDF on your hard drive.
In a 4-pin DIP or SOP package, “9892” often corresponds to a with a CTR (Current Transfer Ratio) of 50-200%. You will see this in isolated power supplies or microcontroller input protection circuits. my 9892 datasheet
When layout planning a PCB for the MY9892, implementing best practices ensures signal integrity and reliable thermal performance. While this article covers 95% of what you