the MOSFET unit I recommended has a thermal operation limit of 175C AND AND AND AND a Vf that is extremely low. Less junction Vf SIGNIFICANTLY lower. The AREA of the junction in the MOSFET I recommended is more than 250 percent larger.
Ya think maybe the original Chino MOSFET junction temperature limit may be a -little- lower than 175C?
I DO NOT TRUST THE CHINESE to spend a single YUAN RENMINBI more than they have to.
Yes of course heat sinking is vital. But START with a decent component and build from there. Remember the porcupine heat sinks Landy mused over? With Arctic Silver ADHESIVE thermal compound they can become a reality.
The 41 amps was a MOSFET undergoing THERMAL RUNAWAY.
