SPICE model request for JFET: 2SK49 and 2N3820

Status
Not open for further replies.

eblc1388

Active Member
I have quite a few of these in my part drawer and also got their datasheet. However, it would be nice to have their SPICE model too so that I can test out new design in SwcadIII. I've searched on the net but couldn't locate any.

Can anyone helps? Thanks.

A typical jfet model is of the form:

.MODEL 2N3370 NJF(VTO=-0.65 BETA=766.8E-6 BETATCE=-0.5 LAMBDA=9E-3
+ RD=1 RS=1 CGS=2.916E-12 CGD=2.8E-12 PB=0.5 IS=114.5E-15 XTI=3 AF=1
+ FC=0.5 N=1 NR=2 MFG=NSC)
 
Last edited:
Hi EBLC1388,

Here's my jfet library, the 2N3820 is included,
The 2SK49 is gonna be a japanese problem.

on1aag.
 

Attachments

  • standard.jft.txt
    23.1 KB · Views: 736
jari said:
Can you send that model for me also?
Click to expand...

hi jari,
The 2N3820 model is already in the LTS standard.jft folder as downloaded from Linear Tech.

If you cannot see it, paste this into the standard.jft folder

Code: 
.model J2N3820 PJF(Beta=1.271m Betatce=-.5 Rd=1 Rs=1 Lambda=40m Vto=-2.5 Vtotc=-2.5m Is=222.4f Isr=2.177p N=1 Nr=2 Xti=3 Alpha=29.8u Vk=400.1 Cgd=13.27p M=.4822 Pb=1 Fc=.5 Cgs=16.58p Kf=916.6E-18 Af=1 mfg=National)
 
Last edited:
Model

Thank you. It seems to work in eldo simulation.
I was developing some low noise preamplifier and need to find low noise P-channel
JFET.

 
Status
Not open for further replies.

Similar threads

  • Question
LIC Protection - request for help
Replies
12
Views
738
GH Crash
H
  • Locked
  • Question
JFET/BJT assignment
Replies
1
Views
2K
Nigel Goodwin
  • Question
Looking for HF LTSpice models and circuits.
Replies
1
Views
2K
tepalia02
T
  • Question
Need Spice model for D965 npn transistor to simulate in Ltspice
Replies
5
Views
11K
Papabravo
F
  • Question
Need to design and build 250W BLDC inverters for drones
Replies
2
Views
2K
Papabravo
Menu
Log in
Register
Cookies are required to use this site. You must accept them to continue using the site. Learn more…