Need more information about J2SK242

[Paul98]

Good evening, I am looking for information on the JFET J2SK242 but I find very little about it. This Fet is in the LtSpice database. Does it have an equivalent?

Thank you

 

[stenzer]

Hi,

I'm not able to find the mendioned JFET in LTspice XVII, my library has been updated a couple of days ago.

I assume it is a 2SK242 n-channel JFET, see [1]. Which LTspice version are you using? Who is the manufacturer of the mentioned J2SK242? The non-J 2SK242 is also not available in my library.

[1] pdf.datasheetcatalog.com/datasheet/sanyo/ds_pdf_e/2SK242.pdf

BR

 

[Paul98]

Hi, I checked the backup library (I use LtSpice 17) but actually that JFet doesn't exist Maybe it's a custom library I added a while ago. It could be the 2SK242. The related .model file is:

.model J2sk242 NJF(Beta=3.326m Rs=5.875 Rd=5.875 Betatce=-.5 Lambda=1.429u Vto=-1.514 Vtotc=-2.5m Cgd=72.68f M=.3333 Pb=1 Fc=.5 Cgs=3.96p Isr=4.016n Nr=2 Is=401.6p N=1 Xti=3 Alpha=10u Vk=100 Kf=1E-18 Af=1)

Unfortunately I can't find the .model for 2sk242 to compare.

 

[BigBoss]

.model J2sk242 NJF(Beta=3.326m Rs=5.875 Rd=5.875 Betatce=-.5 Lambda=1.429u
+ Vto=-1.514 Vtotc=-2.5m Cgd=72.68f M=.3333 Pb=1 Fc=.5 Cgs=3.96p
+ Isr=4.016n Nr=2 Is=401.6p N=1 Xti=3 Alpha=10u Vk=100 Kf=1E-18
+ Af=1)

Extracted from C:\Cadence\SPB_17.4\tools\pspice\library\jjfet.lib
You have to make recognize the model to LTSpice.

 

[Paul98]

The two models compared are the same and already work on LtSpice. I suppose J2SK242 is 2SK242.
Thank you.