I state that I am not a power designer.
I simulated a Flyback with 230Vac input and two outputs: 28V 1A and 9V 0.5A with tiny_switch-4.
In the transformer specification, which is an E25 / 13/7 (EF25) core, it indicates as PC95 material gapped for ALG of 232 nH / T²
In all the research I have done with PC95 (TDK) and its alternatives N95 (EPCOS), 3C95 (FERROXCUBE) are never present with the format E25 / 13/7 (EF25).
Can someone help me understand why?
I enclose the simulation recommended by the software.
Thank you for the collaboration
E25/13/7 with material PC95