Hello, I nee d a N-MOS with a low Gate Threshold Voltage, but I did not found it in the library. So,I wanted to create mine, based on the [BSS138][1], and I found a Pspice model (below) The problem is the simulation terminates with a timeout with this component (notwith another N-MOS). So,I would like to know if my problem comes from my model. Is there any warning or error message if there is a problem in the model ? Thank you. This is the model I found. .SUBCKT bss138lt1 1 2 3 ************************************** * Model Generated by MODPEX * *Copyright(c) Symmetry Design Systems* * All Rights Reserved * * UNPUBLISHED LICENSED SOFTWARE * * Contains Proprietary Information * * Which is The Property of * * SYMMETRY OR ITS LICENSORS * *Commercial Use or Resale Restricted * * by Symmetry License Agreement * ************************************** * Model generated on May 2, 03 * MODEL FORMAT: PSpice * Symmetry POWER MOS Model (Version 1.0) * External Node Designations * Node 1 -> Drain * Node 2 -> Gate * Node 3 -> Source M1 9 7 8 8 MM L=100u W=100u * Default values used in MM: * The voltage-dependent capacitances are * not included. Other default values are: * RS=0 RD=0 LD=0 CBD=0 CBS=0 CGBO=0 .MODEL MM NMOS LEVEL=1 IS=1e-32 +VTO=1.05059 LAMBDA=0.00404031 KP=0.269311 +CGSO=3.66018e-07 CGDO=7.50731e-09 RS 8 3 1e-15 D1 3 1 MD .MODEL MD D IS=9.63839e-09 RS=0.186581 N=1.76759 BV=50 +IBV=0.00025 EG=1.11237 XTI=1e-12 TT=7e-08 +CJO=2.07759e-11 VJ=2.77485 M=0.3 FC=0.5 RDS 3 1 2.5e+09 RD 9 1 1.83726 RG 2 7 6 D2 4 5 MD1 * Default values used in MD1: * RS=0 EG=1.11 XTI=3.0 TT=0 * BV=infinite IBV=1mA .MODEL MD1 D IS=1e-32 N=50 +CJO=7.71436e-11 VJ=0.523477 M=0.9 FC=1e-08 D3 0 5 MD2 * Default values used in MD2: * EG=1.11 XTI=3.0 TT=0 CJO=0 * BV=infinite IBV=1mA .MODEL MD2 D IS=1e-10 N=0.4 RS=3.00002e-06 RL 5 10 1 FI2 7 9 VFI2 -1 VFI2 4 0 0 EV16 10 0 9 7 1 CAP 11 10 2.46901e-10 FI1 7 9 VFI1 -1 VFI1 11 6 0 RCAP 6 10 1 D4 0 6 MD3 * Default values used in MD3: * EG=1.11 XTI=3.0 TT=0 CJO=0 * RS=0 BV=infinite IBV=1mA .MODEL MD3 D IS=1e-10 N=0.4 .ENDS bss138lt1 [1]: https://cdn.sparkfun.com/datasheets/BreakoutBoards/BSS138.pdf