Physically, this component is most often found in a (Small Outline Transistor, 6-lead) or SOP-8 package. It integrates a power MOSFET, a controller, and feedback circuitry into a single chip.

Usually a multi-pin chip (e.g., from the NCP or TOP switch families) that drives the switching transformer.

If you're looking for more details on a specific "ZD-95-G-F schematic" and it's not readily available, you might:

: Designed to withstand environments up to