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REQ: S-PARAMETER FOR 2n2222 & 2n3904

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bobcat1

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2n2222 and s-parameters

Need S-PARAMETER FOR 2n2222 & 2n3904 bjt


thanks


bobi
 

olive

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s parameter model for 2n3904

These are not small signal RF transistor. You can calculate the S parameters with spice. But you have to take the package into consideration. Infineon and Philips semiconductor web sites are good places to find spice models.
 

VSWR

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2n2222 and 2n3904

It's VERY uncommon to ask for S-parameters for these low frequency transistors. Are you sure you have not got it all wrong?

In any case. at what bias (IC and VCE) do you want the S-parameters? In which configuration? Common emitter? What frequency range?
 

bobcat1

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s parameter 2n3904

I need it for design a match to simple CE amp for 4 Mhz

Vcc 5V

Ic = 10 mA
 

flatulent

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q2n2222 pspice parameters

At this frequency you can use the hybrid pi parameters to make a simple lumped element equivalent circuit. You then use ordinary hand calulations to make the source and load networks.
 

papyaki

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s-parameters 2n3904

Hi

This app. note from cadence is very interesting about this subject.

h**p://w*w.orcadpcb.com/pspice/applicationnotes/tn10.asp?bc=F
 

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