-Hello, this is my first post here and i hope you guys can help me out. I recycled a pair of 47n60c3 mosfets from an old board and i wanna know if they are suitable to build an amplifier with, im thinking something like a simple class A amp using each transistor for each channel, so i want to know if these mosfets can be used for this kind of purpose 🙁
-I'll appreciate any help. Thanks in advance.
-I'll appreciate any help. Thanks in advance.
What I can say its got good avalanche characteristics , in other words if the Vdss is exceeded (rated voltage ) it wont break down if the drain current is within limits .
Will it work in class A --well yes .
Is it "as good " as a mosfet known to work well or designed for audio --er no.
But don't let that stop you as that TV forging program says ---"it will cut/kill "
Will it work in class A --well yes .
Is it "as good " as a mosfet known to work well or designed for audio --er no.
But don't let that stop you as that TV forging program says ---"it will cut/kill "
-Thank you a lot for your response, i'll keep this in consideration. I wonder how much watts i could juice out of these mosfets in a class A config considering their limits, is there a way to calculate that?
Good powerful devices, could just about get 180W class-ab out of a single pair with good heatsink.
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180W is very ambitious, the datasheet does not describe low frequency SOAR, always an issue with modern MOSFETS. The shortest graph tp is just 1 ms. Real loudspeaker loads have low impedance and wild phase around port resonance, where music power content can be high
The datasheet I saw on Infineon website showed DC curve for SOA and the junction to case thermal resistance was fairly low.
Without an SOAR graph its pretty foolhardy to try and use a switching MOSFET for analog duty, but this one has a graph and it suggests 7A @ 70V is on the DC limit which is pretty good. 0.18 C/W thermal resistance in total by my calcs.
The high voltage rating means the threshold voltage is quite high, losing more output swing than some MOSFETs.
The high voltage rating means the threshold voltage is quite high, losing more output swing than some MOSFETs.
