MOSFET Vgs threshold

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zhengchao201105

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refer to the picture attached, if I add a 6v power,why the Vgs value is 0.001v, but according to the datasheet of BSP149, Vgs threshold is -1.4v at typical and minimun -1v.
 

I think your SIM program does not know anything about that unusualdepletion mode Mosfet.
The currents are very low maybe because the drain and source are not connected to anything.
The 13V zener diode is not going to do anything in that 6V circuit.
 

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