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How to pick out a transistor? What I should look for? Answered

I need a MOSFET transistor for a flyback transformer driver. Many guys said 2n3055 and I want another. How can I compare?or can you give me a list of transistors that I can use?

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steveastrouk
steveastrouk

Best Answer 10 years ago

It depends on too many complex things to detail here. Start with maximum voltgage (Vds) or Vce rating, and speed. Mosfets are tricky to driver very fast, so a 3055 may be a good choice, coupled to its relatively low Vce (Sat)

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theVader75
theVader75

Answer 10 years ago

can I use a 2n5020?(http://www.datasheetcatalog.org/datasheet/stmicroelectronics/9038.pdf)or a mj1000?I found this site and there are some transistors(http://www.angelfire.com/80s/sixmhz/flyback.html) or this transistor (http://www.datasheetcatalog.com/datasheets_pdf/2/N/3/7/2N3715.shtml)?

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steveastrouk
steveastrouk

Answer 10 years ago

I don't know your supply voltage, I don't know your peak charging current, I don't know your driver stage....

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theVader75
theVader75

Answer 10 years ago

My supply voltage is 22 and supply current is 16amps and the driver stage is 0 because I am gathering meterials. if you know a simpler driver please tell me ,I want the simplest and safest way. Thank you.

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steveastrouk
steveastrouk

Answer 10 years ago

Given that Ic = 1.2 A, and Icmax is only 6A, then clearly the 5020 isn't going to work. You need a POWER transistor, and a fast switching one too. Steve

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theVader75
theVader75

Answer 10 years ago

Ok, i forgot that i have a monitor pcb with all of the things on it including an new flyback transformer and lots of mosfet transistor but i dont know which to use.

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steveastrouk
steveastrouk

Answer 10 years ago

If you've got that, I'd poke around and find the flyback circuit there. You'll learn a lot that way.