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Electronics => Projects, Designs, and Technical Stuff => Topic started by: kjn4685 on August 28, 2014, 02:46:49 am

Title: choosing a transistor
Post by: kjn4685 on August 28, 2014, 02:46:49 am

I would like to know if I had a transistor with 50 vcbo and another with the vcbo 100 vcbo will work. The veco is 120v

Title: Re: choosing a transistor
Post by: TheRuler8510 on August 28, 2014, 03:22:29 am

You need to look at other parameters like hfe.

What is the application? Everything depends on that.

Title: Re: choosing a transistor
Post by: Mike Warren on August 28, 2014, 03:23:47 am

If all other specs are the same, then yes, but I doubt that would be the case.  Other than that, compatibility is largely dependent on the application.

Can you post what the 2 transistors are and what its use is?

Title: Re: choosing a transistor
Post by: David Hess on August 28, 2014, 04:52:32 am

Quote from: kjn4685 on August 28, 2014, 02:46:49 am

I would like to know if I had a transistor with 50 vcbo and another with the vcbo 100 vcbo will work. The veco is 120v

Are you sure you did not get those reversed?  I have never seen a transistor where the Vceo was greater than the Vcbo.

Except in very specialized applications like avalanche mode switching, increasing the Vcbo will not affect circuit operation although higher voltage transistors are often slower or have lower gain.