I have more information. The reason I initiaited the post was strictly a Protel question. I could not get the simulator to find the model. I have figured out and solved that problem. But...now Protel doesn't like my model. Its says there are toomany parameters.
The model is for a MOSFET, N-channel, part number BUZ11:
*n-MOSFET*50V 30A 40mOhm*Add_in_Line
.SUBCKT BUZ11 1 2 3
M11 95 11 76 76 MBUZ
M2 11 95 8 8 MSW
M3 95 11 8 8 MSW
M347 86 95 95 95 MVRD
RS 5 76 22M
RG 4 11 5.5M
CGS 76 11 1.22N
D11 76 86 DREV
COX 11 8 3N
DGD 8 95 DCGD
LG 4 1 7N
LS 5 2 7N
LD 86 3 5N
.MODEL DREV D CJO=1.5N RS=20M TT=4.2N IS=300P BV=50
.MODEL MBUZ NMOS VTO=3.315 KP=24.41
.MODEL MSW NMOS VTO=0.001 KP=5
.MODEL DCGD D CJO=1.03N M=0.537 VJ=1.135
.MODEL MVRD NMOS VTO=-15.6 KP=10.5
.ENDS
*$
or BUZ101S:
*n-MOSFET**Add_in_Line
.SUBCKT BUZ101S GATE DRAIN SOURCE
.PARAM Cgs=0.142N Cox=0.901N Kgd=0.514N VSW=-1.61 cjo_ds=0.436n
.PARAM W=0.558 L=1.025U VTH=3.68 alpha=0.5 RG=1.6 RD=27.0M RS=1.0M LG=7N
+LD=5N LS=5N
.PARAM nsub=1.03E17 tox=81E-9 uo=575 vmax=1.25E5 bv =62 trr=55n ISE=.25n
.MODEL DB_L1 D (BV= {bv}, CJO ={cjo_ds}, TT ={trr}, IS ={ISE})
.MODEL NMOS_L3 NMOS
+(LEVEL=3,W={W},L={L},VTO={VTH},nsub={nsub},tox={tox},vmax={vmax},u0={uo})
R_RG 5 gi {RG}
S_S2 gcox cbias 0 vgcox S2
RS_S2 0 vgcox 1G
.MODEL S2 VSWITCH Roff=1e6 Ron=100 Voff=-0.01 Von=0
S_S1 gi gcox 0 vgcox S1
RS_S1 0 vgcox 1G
.MODEL S1 VSWITCH Roff=1e6 Ron=100 Voff=0 Von=-0.01
E_E5 vgcox 0 VALUE { -V(DCB)+V(Vdepl)+{VSW} }
R_RDUMMY RDM RDP 1E12
E_ABM11 Vdepl 0 VALUE { if (V(Vdg) >0.0, V(Vdg)
+ +2*({Kgd}/{Cox})**2*(1-sqrt(1+(V(Vdg)/({Kgd}/{Cox})**2))),0) }
E_ABM22 Vgox 0 VALUE { V(Vdg)-V(Vdepl) }
D_D5 DSB DCB DB_L1
R_RKLEIN RDM RKP .01m
E_E6 cbias 0 VALUE { V(gi) }
R_R12 0 cbias 1E12
M_X1 RDM gi DSB DSB NMOS_L3
R_R8 DSB gi 1E12
C_C7 DSB gcox {Cox}
C_CGS1 DSB gi {Cgs}
R_RLKG DSB gi 1E12
V_VID DCB RDP DC 0V AC 0V
L_LD DCB DRAIN {LD}
L_LS SOURCE 7 {LS}
R_RS 7 DSB {RS}
E_E4 RDP RKP VALUE { {alpha}*(V(RDM)-V(DSB))**2+I(V_VID)*
+ {RD}/(300/(TEMP+273))**1.5 }
L_LG GATE 5 {LG}
G_G4 RDM gi VALUE { if (time>50n, DDT({Cox}*V(Vgox, 0)),0) }
E_ABM21 Vdg 0 VALUE { V(RDM)-V(gi)+{alpha}*(V(RDM)-V(DSB))**2 }
.ENDS
Any ideas why Protel does not like these models?
They are older parts and took a lot of web digging to find them.