I used LTspice software to simulate the circuit and encountered some problems when importing the model document of transistor BFP842ESD. The document did not clearly label the pins, and the pins were represented by numbers. I don't know how to correspond the numbers to the corresponding B C E (Base, collector, emitter).
The other transistor BFR181 I mentioned was also not clearly labeled with pins
I don't know how to determine the pins corresponding to these numbers, so I can't simulate them
And other models provide clear correspondence between numbers and pin labels B C E