Help identify a circuit board component

Would appreciate it if someone could help identify this part. It’s a SMD part on an AC to DC converter (110VAC to 48VDC).

Please see attached photo.

Welcome to the Technical Forum. You can look at BZX585-C3V9,115 on this link: BZX585-C3V9,115 Nexperia USA Inc. | Discrete Semiconductor Products | DigiKey . The data sheet is on the link. You can review the dimensions and see if this is close to the size you need . It does have the F6 prt marking. Though there might be others it could be.