Fet for HF design

[François Guillet]

I'm looking for a mosfet better than 2SK544 which has high gain (27 dB at 100 Mhz),
low noise (NF 1.5 dB at 100 Mhz) and small transfer capacitance (0.035 pF).

Any idea ?
or a site where I could search for it on the basis of these topics ?

thanks

fu2 sec

 

[Wimpie]

I'm looking for a mosfet better than 2SK544 which has high gain (27 dB at100 Mhz),
low noise (NF 1.5 dB at 100 Mhz) and small transfer capacitance (0.035 pF).

Any idea ?
or a site where I could search for it on the basis of these topics ?

thanks

fu2 sec

Hello François,

I don't know what spec must be better (and the application), but you
may try www.infineon.com, descretes, RF discretes, etc. They have
various MOSFETS and SiGe transistors.

Best Regards,

Wim
PA3DJS
www.tetech.nl
don't forget to remove abc when direct replying

 

[François Guillet]

"John Larkin" <[email protected]> a écrit dans le message
de news: [email protected]...
| On Fri, 4 Jul 2008 16:16:40 +0200, "François Guillet"
|
| >I'm looking for a mosfet better than 2SK544 which has high gain (27 dB at 100
Mhz),
| >low noise (NF 1.5 dB at 100 Mhz) and small transfer capacitance (0.035 pF).
| >
| >Any idea ?
| >or a site where I could search for it on the basis of these topics ?
| >
| >thanks
| >
| >fu2 sec
| >
|
| Look at the NEC phemts... NE3509 is a pretty hot part. It will have
| roughly 10 times the Gm of the 2SK thing.
|
| John

Very impressive gain.
It looks a very good candidate.

Thanks.

 

[François Guillet]

"Wimpie" <[email protected]> a écrit dans le message de 2ce0756e-fa55-41ee-9920-c54f6196d046@e39g2000hsf.googlegroups.com...

I'm looking for a mosfet better than 2SK544 which has high gain (27 dB at 100
Mhz),
low noise (NF 1.5 dB at 100 Mhz) and small transfer capacitance (0.035 pF).

Any idea ?
or a site where I could search for it on the basis of these topics ?

thanks

fu2 sec

| Hello François,

| I don't know what spec must be better (and the application), but you
| may try www.infineon.com, descretes, RF discretes, etc. They have
| various MOSFETS and SiGe transistors.

| Best Regards,

| Wim
| PA3DJS


Thanks Wim. The parametric search is very useful. It is a pity such a tool is not
provided by all manufacturers.

François F6FLT