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From: whit@milton.acs.washington.edu (John Whitmore)
Newsgroups: sci.electronics
Subject: Re: GaAs FET 2SK152
Summary: SONY silicon NFET 2SK152
Message-ID: <1316@milton.acs.washington.edu>
Date: 9 Jan 90 22:49:31 GMT
References: <4046@helios.TAMU.EDU>
Reply-To: whit@milton.acs.washington.edu (John Whitmore)
Distribution: usa
Organization: University of Washington, Seattle
Lines: 24

In article <4046@helios.TAMU.EDU> narayan@cssun.tamu.edu (Sriram Narayan) writes:
>Could anyone out there tell me if the 2SK152 (GaAs FET) is a commercially
>manufactured part and if so, some details or sources? ...
>Isn't an SKxxx part a silicon device, and is it that GaAs devices are 
>being given the 2SKxxx id's? 
>

	My SONY discrete databook lists 2SK152 as a silicon N-channel
junction FET.  Typical uses are low noise head amplifiers for VTR's,
and the main claim to fame is high transconductance/capacitance ratio
"|Yfs|/Ciss = 3.5 (typical) at 10 mA"
15V max, 50 mA max drain voltage and current, input capacitance under 9 pF,
and Ids between 9.5 and 42 mA at Vgs=0.0.
The noise figure is 1.8 dB in a circuit with 15 dB gain, 50 ohm input
impedance, measured near 100 MHz.  Voltage input noise is 1.2 nV/sqrt(Hz)
at 1 kHz with 10 mA drain current and grounded gate.  
	Sony's Texas reps are B-P Sales, at
 (214) 234-8438, or (713) 782-4144, or (512) 346-9186, as well as
Shefler-Kahn (in El Paso county), (505) 345-3591.  And Marshall Industries
is listed as a distributor in your neck of the woods.  
	Lookit all those different area codes!  Texas must be BIG!

 I am known for my brilliance,	               John Whitmore
  by those who do not know me well.