2SK209 , 2SK3320 TOSHIBA Field Effect Transistor Audio Frequency Low Noise Amplifier

[boyet0173]

Hi,
Does anyone tried to used this FET transistor for input amplifier?

TOSHIBA Field Effect Transistor Audio Frequency Low Noise
Amplifier
2SK209
2SK3320
Audio Frequency Low Noise
Amplifier Applications

•High |Y fs|: |fs| = 15 mS (typ.) at VDS = 10 V, VGS = 0
•High breakdown voltage: VGDS = −50
•Low noise: NF = 1.0dB (typ.) at VDS = 10 V, ID = 0.5 mA, f = 1 kHz, RG = 1 kΩ
•High input impedance: I GSS= −1 nA (max) at VGS = −30 V
•Small package

Regards,
Boyet

 

[AndrewT]

Medium gm Nch jFET in sot23 and still available from digikey.
Idss range from 1.2 to 14mA in three grades.
Useful.

 

[mlloyd1]

don't forget about 2sk2145 also.
i see it is also availble at digikey, which i didn't know - i always got mine from mouser.

mlloyd1