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2SC4054 BJT Transistor Failed Need a Replacement


New Member
I have an SMPS using a 2sc4054 BJT transistor that failed, since that transistor is no longer available I would like to replace it with a Mosfet. What Mosfet should I use and what other modification should be made to the circuit so the Mosfet receives the right gate voltage ?
I have attached the supply circuit !



Well-Known Member
Most Helpful Member
1) You should start a new post.
2) You need to replace the transistor with a very close replacement transistor. Changing to a MOSFET will not work.

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