BC546 spice model

[Mosquito]

Hi
Can someone out there gentle provide a good model of BC546 / BC556 ?
Not in LTSpice library, nor in the Cordell one.
Thanks a lot
J.
mad: damn typo on the title)

 

[bluevas]

spice

try this Jorge.

 

[Mosquito]

Hi,
I just used .include it in my sim, and it works like a charm
Many thanks
J.

 

[Mosquito]

the simulation file

 

[cbdb]

I think there Are 3 types A,B and C with very different hfe.

 

[Jeff R]

This is what I have, for the B version only.

.model BC846B NPN(IS=1.82E-14 NF=0.9932 ISE=2.89E-16 NE=1.4 BF=324.4 IKF=0.109 VAF=82 NR=0.9931 ISC=9.98E-12 NC=1.763 BR=8.29 IKR=0.09 VAR=17.9 RB=10 IRB=5.00E-06 RBM=5 RE=0.649 RC=0.7014 XTB=0 EG=1.11 XTI=3 CJE=1.24E-11 VJE=0.7579 MJE=0.3656 TF=4.91E-10 XTF=9.51 VTF=2.927 ITF=0.3131 PTF=0 CJC=3.35E-12 VJC=0.5463 MJC=0.391 XCJC=0.6193 TR=9.00E-08 CJS=0 VJS=0.75 MJS=0.333 FC=0.979 Vceo=65 Icrating=100m mfg=Philips)

.model BC556B PNP(IS=3.83E-14 NF=1.008 ISE=1.22E-14 NE=1.528 BF=344.4 IKF=0.08039 VAF=21.11 NR=1.005 ISC=2.85E-13 NC=1.28 BR=14.84 IKR=0.047 VAR=32.02 RB=1 IRB=1.00E-06 RBM=1 RE=0.6202 RC=0.5713 XTB=0 EG=1.11 XTI=3 CJE=1.23E-11 VJE=0.6106 MJE=0.378 TF=5.60E-10 XTF=3.414 VTF=5.23 ITF=0.1483 PTF=0 CJC=1.08E-11 VJC=0.1022 MJC=0.3563 XCJC=0.6288 TR=1.00E-32 CJS=0 VJS=0.75 MJS=0.333 FC=0.8027 Vceo=65 Icrating=100m mfg=Philips)

 

[Mosquito]

This is what I have, for the B version only.

BC846?
Many thanks. I will try it in my circuit.
The B version is the most easy/common to find out there.
Cheers
J.

 

[brian92fs]

the simulation file

Sorry to revive an old thread... but do you also have the model file available for the BC546? I see you referenced it as "BC546b.txt"

Still new to Spice and haven't tried to build a file from the raw data.

 

[jaycee]

I have this, which IIRC i got from the NXP website years ago:

.MODEL BC546B NPN (
+ IS=2.39E-14
+ NF=1.008
+ ISE=3.545E-15
+ NE=1.541
+ BF=294.3
+ IKF=0.1357
+ VAF=63.2
+ NR=1.004
+ ISC=6.272E-14
+ NC=1.243
+ BR=7.946
+ IKR=0.1144
+ VAR=25.9
+ RB=1
+ IRB=1E-06
+ RBM=1
+ RE=0.4683
+ RC=0.85
+ XTB=0
+ EG=1.11
+ XTI=3
+ CJE=1.358E-11
+ VJE=0.65
+ MJE=0.3279
+ TF=4.391E-10
+ XTF=120
+ VTF=2.643
+ ITF=0.7495
+ PTF=0
+ CJC=3.728E-12
+ VJC=0.3997
+ MJC=0.2955
+ XCJC=0.6193
+ TR=1E-32
+ CJS=0
+ VJS=0.75
+ MJS=0.333
+ FC=0.9579 )

 

[jaycee]

You can also use SPICE models for the BC846/856 which are the same die in a SMT package

 

[brian92fs]

Thanks jaycee! I tried searching manufacturers’ sites but couldn’t find anything.

 

[tomchr]

Or depending on the application, the BC547 or BC548 will work too. The difference is in the max collector-emitter voltage.

Tom

 

[cogsncogs]

BC546A, BC546B, BC546C

.model BC546A NPN(Is=7.049f Xti=3 Eg=1.11 Vaf=127.9 Bf=253 Ise=96.26f Ne=1.556 Ikf=77.05m Nk=.5305 Xtb=1.5 Br=1 Isc=130.8f Nc=1.602 Ikr=3.321 Rc=.8766 Cjc=5.25p Mjc=.3147 Vjc=.5697 Fc=.5 Cje=11.5p Mje=.6715 Vje=.5 Tr=10n Tf=409.5p Itf=1.994 Xtf=40.12 Vtf=10 Vceo=65 ICrating=100m mfg=Philips)
.model BC546A_OC NPN (IS=7.049F BF=253 VAF=127.9 IKF=77.05M ISE=96.26F NE=1.556 IKR=3.321 ISC=130.8F NC=1.602 NK=530.5M RC=876.6M CJE=11.5P VJE=500M MJE=671.5M CJC=5.25P VJC=569.7M MJC=314.7M TF=409.5P XTF=40.12 VTF=10 ITF=1.994 TR=10N XTB=1.5 Vceo=65 Icrating=100m MFG=ORCAD)
.model BC546B NPN(IS=2.39E-14 NF=1.008 ISE=3.55E-15 NE=1.541 BF=294.3 IKF=0.1357 VAF=63.2 NR=1.004 ISC=6.27E-14 NC=1.243 BR=7.946 IKR=0.1144 VAR=25.9 RB=1 IRB=1.00E-06 RBM=1 RE=0.4683 RC=0.85 XTB=0 EG=1.11 XTI=3 CJE=1.36E-11 VJE=0.65 MJE=0.3279 TF=4.39E-10 XTF=120 VTF=2.643 ITF=0.7495 PTF=0 CJC=3.73E-12 VJC=0.3997 MJC=0.2955 XCJC=0.6193 TR=1.00E-32 CJS=0 VJS=0.75 MJS=0.333 FC=0.9579 Vceo=65 Icrating=100m mfg=NXP)
.model BC546B_OC NPN (IS=7.049F BF=374.6 VAF=62.79 IKF=81.57M ISE=68F NE=1.576 IKR=3.924 ISC=12.4F NC=1.835 NK=476.7M RC=974.7M CJE=11.5P VJE=500M MJE=671.5M CJC=5.25P VJC=569.7M MJC=314.7M TF=410.2P XTF=40.06 VTF=10 ITF=1.491 TR=10N XTB=1.5 Vceo=65 Icrating=100m MFG=ORCAD)
.model BC546B_ON NPN (IS=1.66519P BF=582.202 NF=1.20303 VAF=80.5225 IKF=30.4482M ISE=39.0112P NE=2.21673 BR=49.1926 NR=1.15821 VAR=36.8273 IKR=304.482M ISC=3.73674F NC=1.06692 RE=557.758M RB=52.316 RBM=100M IRB=100M RC=2.78879 CJE=29.2882P VJE=901.691M MJE=230M CJC=6.00724P VJC=400M MJC=230M XCJC=803.021M MJS=500M FC=100M TF=551.008P XTF=5.93149 VTF=6.46189 ITF=702.35M TR=100N EG=1.05 XTB=100M XTI=2.55097 Vceo=65 Icrating=100m MFG=Onsemi)
.model BC546C NPN (IS=345.405F BF=1.06537K NF=1.13837 VAF=1MEG IKF=73.2216M ISE=39.7105F NE=1.48932 BR=200.108M NR=1.30591 VAR=465.191K IKR=126.454U ISC=39.7105F NC=1.41135 RE=203.809M RB=10.2494 RBM=10.2494 IRB=389.283U RC=1.01905 CJE=12.514P VJE=878.819M MJE=636.768M CJC=6.16189P VJC=407.818M MJC=285.882M MJS=500M FC=755.386M TF=411.695P XTF=14.2652 VTF=26.9946 ITF=1.08041 TR=8.618N EG=802M XTB=28.0314 XTI=0 Vceo=65 Icrating=100m MFG=awb)