REQ: S-PARAMETER FOR 2n2222 & 2n3904

[bobcat1]

2n2222 and s-parameters

Need S-PARAMETER FOR 2n2222 & 2n3904 bjt


thanks


bobi

 

[olive]

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]

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]

s parameter 2n3904

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

Vcc 5V

Ic = 10 mA

 

[flatulent]

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]

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