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Old 8th December 2009, 07:37 PM   #1
diyAudio Member
Join Date: Nov 2009
Default bd 140

I found that the BD140 having problem,

.MODEL BD140 PNP (IS=1e-09 BF=650.842 NF=0.85 VAF=10 IKF=0.0950125 ISE=1e-08 NE=1.54571 BR=56.177 NR=1.5 VAR=2.11267 IKR=0.950125 ISC=1e-08 NC=3.58527 RB=41.7566 IRB=0.1 RBM=0.108893 RE=0.000347052 RC=1.32566 XTB=19.5239 XTI=1 EG=1.05 CJE=1e-11 VJE=0.75 MJE=0.33 TF=1e-09 XTF=1 VTF=10 ITF=0.01 CJC=1e-11 VJC=0.75 MJC=0.33 XCJC=0.9 FC=0.5 CJS=0 VJS=0.75 MJS=0.5 TR=1e-07 PTF=0 KF=0 AF=1 Vceo=80 Icrating=1.5)

The IS isn't that big, can any one give me an accurate model ?
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Old 9th December 2009, 02:00 AM   #2
jaycee is offline jaycee  United Kingdom
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Join Date: Apr 2004
Location: Norwich, UK
If that's from OnSemi, it's garbage. Get the one from Fairchild.
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Old 9th December 2009, 06:10 AM   #3
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Join Date: Nov 2009
FairChild Model . need to online buy. i dunno fair child where to find .
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Old 9th December 2009, 06:39 AM   #4
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aparatusonitus's Avatar
Join Date: Jan 2004
Location: Split, Croatia
Fairchild BD139/140 spice models:

.MODEL BD135_137_139 NPN ( IS=2.3985E-13 BF=244.9 NF=1.0 BR=78.11 NR=1.007 ISE=1.0471E-14 NE=1.2 ISC=1.9314E-11
+ NC=1.45 VAF=98.5 VAR=7.46 IKF=1.1863 IKR=0.1445 RB=2.14 RBM=0.001 IRB=0.031 RE=0.0832 RC=0.01 CJE=2.92702E-10
+ VJE=0.67412 MJE=0.3300 FC=0.5 CJC=4.8831E-11 VJC=0.5258 MJC=0.3928 XCJC=0.5287 XTB=1.1398 EG=1.2105 XTI=3.0)

.MODEL BD136_138_140 PNP ( IS=2.9537E-13 BF=201.4 NF=1.0 BR=23.765 NR=1.021 ISE=1.8002E-13 NE=1.5 ISC=7.0433E-12
+ NC=1.38 VAF=137.0 VAR=8.41 IKF=1.0993 IKR=0.10 RB=1.98 RBM=0.01 IRB=0.011 RE=0.1109 RC=0.01 CJE=2.1982E-10
+ VJE=0.7211 MJE=0.3685 FC=0.5 CJC=6.8291E-11 VJC=0.5499 MJC=0.3668 XCJC=0.5287 XTB=1.4883 EG=1.2343 XTI=3.0)
Non mai abbastanza...
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Old 9th December 2009, 08:23 AM   #5
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Join Date: Nov 2009
hey .. thanks alot .. but another help .. I dunno the J511 diode model and also the BAT85 diode model and BZX79C12V diode, these three models of diodes. I found their datasheet but i dunno is it correct to put inside the LTspice . Can anyone help me give me advise on it model of LTSpice?
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