The 94V-0 rating is mandatory for industrial safety.
If you can provide the secondary numbers printed on the PCB (e.g., near the barcode or the E-number) or tell me the device brand/model it came from, I can help narrow down the schematics. Is it a power board or a mainboard? What are the numbers near "E162264"? Go to product viewer dialog for this item. cm-4 94v-0 schematics
Most CM-4 94V-0 boards found in power supplies follow a predictable topology: The 94V-0 rating is mandatory for industrial safety
If you are utilizing these schematics as a reference layout to build your own custom CM-4 compliant carrier PCB, pay strict attention to these hardware design rules: cm-4 94v-0 schematics