A PCB marked with 94V-0 has been tested to ensure it will not contribute to a fire in the event of a short circuit or overheating. To meet this rating, the board's substrate material must pass a vertical flame test with the following results: 94V-0 Requirement Stops burning within 10 seconds after the flame is removed. Total Afterflame Time Less than 50 seconds for 10 flame applications. Flaming Drips
The marking found on a printed circuit board (PCB) is not a specific model number for an electronic component, but rather a combination of a manufacturer's identification code (SH1) and a safety certification (94V-0). sh1 94v0 datasheet free
The flame cannot reach the top holding clamp of the test specimen. Why This Rating Matters A PCB marked with 94V-0 has been tested