Can an AP8012H SMPS controller be replaced with a VIPer12A?

Thread Starter


Joined Aug 1, 2022
I need to replace an AP8012H SMPS controller IC in an air fryer control board, but this chip is not available in the U.S. except thru dubious overseas online sellers (suspect counterfeits/rejects).
I also see this chip promoted as a drop-in replacement for the readily available VIPer12A. I downloaded data sheets for both, and though the basic specs and pinouts are compatible, the AP8012H runs at 45 kHz switching freq. while the VIPer12A runs at 60 kHz. I think this would cause problems with the SMPS transformer and other components. Has anyone successfully replaced the AP8012H with a VIPer12A?