* Z:\home\khalils\Downloads\files\data\raw_asc\d4ac301be335_KT315G_Avalanche.asc
* Generated by LTspice 26.0.1 for Windows.
* .param Vcbmax=(bVce-0.6)*fb(bf,bVce-0.6,vaf)**(1/nMc) Vebmax=max((bVec-0.6)*fb(br,bVec-0.6,var)**(1/nMe),bVeb)
* .param Bfx=bf*(1+bVce/Vaf)
* .func MM(x,y,z) 1+1f-(limit(x,0,y)/y)**(z*(1-uramp(x-bVce)/(bVcb-bVce)*(z-1.2)))
* Parameter of russian transistor KT315G.
D4 bv N001 Dc0
C2 x 0 {tr} Rser=0
Vac N001 cv 0
D5 bv cv Dc
D1 bv P001 De0
D2 bv ev De
B4 y 0 v=(uramp(i(vae)*2)*fc(bf,v(cv,bv),bVcb)+(0.1*is+isc))/MM(v(cv,bv),bVcb,nMc)-(0.1*is+isc) tripdt={100m*tf} tripdv=.1
D6 bv cv Dcr
Vae P001 ev 0
L3 B bv {Lb} Rser={Rb} Rpar={Rb*100}
B2 ev bv I=uramp(i(vac))*fa(br,v(ev,bv),var)*2/(1-(limit(v(ev,bv),0,Vebmax)/Vebmax)**nMe) rpar=1000Meg tripdt={10m*tr}
L2 ev E {Le} Rser={Re} Rpar={Re*100}
D3 bv ev Der
B3 cv bv I=max(a1*v(x),v(y))
L1 C cv {Lc} Rser={Rc} Rpar={Rc*100}
R1 x y 1
.model D D
.lib C:\users\khalils\AppData\Local\LTspice\lib\cmp\standard.dio
.model De0 d is={is/2/af}
.model De d is={is/2/af} tt={2*tf/kFt}
.model Der d is={ise} cjo={cje} m={mje} n={ne} NBV=1 IBV=.1u BV={bveb}
.model Dc0 d is={is/2/ar}
.model Dc d is={is/2/ar} tt={2*tr}
.model Dcr d is={isc} cjo={cjc} m={mjc} n={nc}; bv={bVcb+1} ibv=1u NBV=1
.param af=bf/(bf+1) ar=br/(br+1)
.func fa1(x) x/(1+x)
.func fb(x,y,z) (1+x*(1+y/z))
.param Lc=10n Le=10n Lb=10n a1=1 ; a1<=1.
.param i0=1m ft=25.8m vx=ft*log(1+i0/is*af)
.param ix=ise*(exp(vx/(ft*ne))-1)
.param Bfx=(1/(1-af+ix/i0)-1)*(1+bVce/Vaf)
.param Vebmax=max((bVec-0.6)*fb(br,bVec-0.6,var)**(1/nMe),bVeb)
.param nMc=log(1+Bfx)/log(bVcb/bVce)
.func fa(x,y,z) 1-1/(1+x*(1+y/z))
.func MM(x,y,z) 1+1f-(limit(x,0,y)/y)**z
.func fc(x,y,z) Fa1(x*(1+y/z))
.param bVce=40 bVcb=100 bVeb=7 bVec=6 nMc=3 nMe=1.2 BF=100 BR=2 RE=1 RC=5 RB=100
.param is=100f ise=20p isc=600p ne=1.8 nc=2 vaf=60 var=20
.param tf=400p tr=2.50n mje=0.4 mjc=0.3 cje=20p cjc=15p kFt=5
.backanno
.end

* LTspice schematic (.asc):
Version 4
SHEET 1 4432 812
WIRE 1184 -464 1136 -464
WIRE 1328 -464 1264 -464
WIRE 1424 -464 1328 -464
WIRE 1136 -432 1136 -464
WIRE 1136 -400 1136 -432
WIRE 960 -368 960 -400
WIRE 912 -176 832 -176
WIRE 960 -176 960 -288
WIRE 960 -176 912 -176
WIRE 1040 -176 960 -176
WIRE 1136 -176 1040 -176
WIRE 1136 -96 1136 -176
WIRE 832 -48 832 -96
WIRE 960 -48 960 -176
WIRE 1040 -48 1040 -176
WIRE 576 80 544 80
WIRE 832 80 832 16
WIRE 832 80 656 80
WIRE 912 80 832 80
WIRE 960 80 960 16
WIRE 960 80 912 80
WIRE 1040 80 1040 16
WIRE 1040 80 960 80
WIRE 1136 80 1136 -16
WIRE 1136 80 1040 80
WIRE 960 112 960 80
WIRE 832 128 832 80
WIRE 1040 128 1040 80
WIRE 1136 144 1136 80
WIRE 832 288 832 272
WIRE 912 288 832 288
WIRE 960 288 960 176
WIRE 960 288 912 288
WIRE 1040 288 1040 192
WIRE 1040 288 960 288
WIRE 1136 288 1136 224
WIRE 1136 288 1040 288
WIRE 960 384 960 288
WIRE 960 496 960 464
IOPIN 960 -400 Out
IOPIN 960 496 Out
IOPIN 544 80 In
SYMBOL bi 1136 224 M180
WINDOW 0 24 80 Left 2
WINDOW 3 123 -5 Left 2
SYMATTR InstName B2
SYMATTR Value I=uramp(i(vac))*fa(br,v(ev,bv),var)*2/(1-(limit(v(ev,bv),0,Vebmax)/Vebmax)**nMe)  rpar=1000Meg  tripdt={10m*tr}
SYMBOL ind 944 -384 R0
SYMATTR InstName L1
SYMATTR Value {Lc}
SYMATTR SpiceLine Rser={Rc} Rpar={Rc*100}
SYMBOL diode 976 16 R180
WINDOW 0 24 64 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D5
SYMATTR Value Dc
SYMBOL voltage 832 176 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName Vae
SYMATTR Value 0
SYMBOL cap 1312 -464 R0
SYMATTR InstName C2
SYMATTR Value {tr}
SYMATTR SpiceLine Rser=0
SYMBOL bi 1136 -96 R0
SYMATTR InstName B3
SYMATTR Value I=max(a1*v(x),v(y))
SYMBOL voltage 832 -80 R180
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName Vac
SYMATTR Value 0
SYMBOL ind 560 96 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L3
SYMATTR Value {Lb}
SYMATTR SpiceLine Rser={Rb} Rpar={Rb*100}
SYMBOL res 1280 -480 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 1
SYMBOL diode 1024 128 R0
SYMATTR InstName D3
SYMATTR Value Der
SYMBOL diode 944 112 R0
SYMATTR InstName D2
SYMATTR Value De
SYMBOL ind 944 368 R0
SYMATTR InstName L2
SYMATTR Value {Le}
SYMATTR SpiceLine Rser={Re} Rpar={Re*100}
SYMBOL bv 1136 -416 R0
SYMATTR InstName B4
SYMATTR Value v=(uramp(i(vae)*2)*fc(bf,v(cv,bv),bVcb)+(0.1*is+isc))/MM(v(cv,bv),bVcb,nMc)-(0.1*is+isc)  tripdt={100m*tf} tripdv=.1
SYMBOL diode 816 128 R0
WINDOW 3 49 25 Left 2
SYMATTR Value De0
SYMATTR InstName D1
SYMBOL diode 1056 16 R180
WINDOW 0 24 64 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D6
SYMATTR Value Dcr
SYMBOL diode 848 16 R180
WINDOW 0 24 64 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D4
SYMATTR Value Dc0
FLAG 960 -400 C
FLAG 960 496 E
FLAG 544 80 B
FLAG 912 80 bv
FLAG 912 -176 cv
FLAG 912 288 ev
FLAG 1136 -320 0
FLAG 1328 -400 0
FLAG 1424 -464 x
FLAG 1136 -432 y
TEXT 1312 376 Left 2 !.model De0 d is={is/2/af}
TEXT 1312 416 Left 2 !.model De d is={is/2/af} tt={2*tf/kFt}
TEXT 1312 456 Left 2 !.model Der d is={ise} cjo={cje} m={mje} n={ne}  NBV=1  IBV=.1u  BV={bveb}
TEXT 1312 496 Left 2 !.model Dc0 d is={is/2/ar}
TEXT 1312 536 Left 2 !.model Dc d is={is/2/ar} tt={2*tr}
TEXT 1312 576 Left 2 !.model Dcr d is={isc} cjo={cjc} m={mjc} n={nc}; bv={bVcb+1} ibv=1u NBV=1
TEXT 1336 -144 Left 2 !.param af=bf/(bf+1)  ar=br/(br+1)
TEXT 1368 -104 Left 2 ;.param Vcbmax=(bVce-0.6)*fb(bf,bVce-0.6,vaf)**(1/nMc)  Vebmax=max((bVec-0.6)*fb(br,bVec-0.6,var)**(1/nMe),bVeb)
TEXT 1360 80 Left 2 !.func fa1(x)  x/(1+x)
TEXT 1352 120 Left 2 !.func fb(x,y,z)  (1+x*(1+y/z))
TEXT 1272 -192 Left 2 !.param Lc=10n Le=10n Lb=10n  a1=1 ; a1<=1.
TEXT 1312 280 Left 2 !.param i0=1m ft=25.8m vx=ft*log(1+i0/is*af)
TEXT 1312 312 Left 2 !.param ix=ise*(exp(vx/(ft*ne))-1)
TEXT 1312 344 Left 2 !.param Bfx=(1/(1-af+ix/i0)-1)*(1+bVce/Vaf)
TEXT 1280 -72 Left 2 !.param  Vebmax=max((bVec-0.6)*fb(br,bVec-0.6,var)**(1/nMe),bVeb)
TEXT 1256 24 Left 2 !.param nMc=log(1+Bfx)/log(bVcb/bVce)
TEXT 1344 168 Left 2 ;.param Bfx=bf*(1+bVce/Vaf)
TEXT 1360 56 Left 2 !.func fa(x,y,z)  1-1/(1+x*(1+y/z))
TEXT 1824 112 Left 2 ;.func MM(x,y,z)  1+1f-(limit(x,0,y)/y)**(z*(1-uramp(x-bVce)/(bVcb-bVce)*(z-1.2)))
TEXT 1824 152 Left 2 !.func MM(x,y,z)  1+1f-(limit(x,0,y)/y)**z
TEXT 1352 144 Left 2 !.func fc(x,y,z)  Fa1(x*(1+y/z))
TEXT 1272 -288 Left 2 !.param  bVce=40  bVcb=100 bVeb=7 bVec=6  nMc=3 nMe=1.2  BF=100 BR=2 RE=1 RC=5 RB=100
TEXT 1272 -256 Left 2 !.param is=100f ise=20p  isc=600p ne=1.8 nc=2   vaf=60 var=20
TEXT 1272 -224 Left 2 !.param tf=400p tr=2.50n mje=0.4  mjc=0.3 cje=20p cjc=15p kFt=5
TEXT 1464 -368 Left 2 ;Parameter of russian transistor KT315G.