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Old 31st October 2003, 01:49 PM   #1
Gunders is offline Gunders  Norway
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Default SPICE models for 2SC2705 & 2SA1145

Do anyone have SPICE models for the 2SC2705 & 2SA1145 transistors?
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Old 31st October 2003, 02:13 PM   #2
Netlist is offline Netlist  Belgium
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.MODEL 2SC2705 NPN (IS=9.98627F BF=2K NF=967.67M VAF=100 IKF=49.6929M
+ ISE=1.04163F NE=1.07574 BR=601.257M IKR=462.798U ISC=32.904P RC=899.97M
+ CJE=2P MJE=500M CJC=6.42174P VJC=749.999M MJC=499.509M TF=713.346P XTF=500M
+ VTF=10 ITF=9.9976M TR=10N

.MODEL 2SA1145 PNP (IS=10F BF=134.853 VAF=100 IKF=109.96M ISE=221.874F
+ NE=1.66575 BR=10 IKR=880.176M ISC=187.58P NC=1.90472 RE=1 RC=15.5104 CJE=2P
+ MJE=500M CJC=6.24728P VJC=692.028M MJC=340.013M TF=1.08385N XTF=16.9293
+ VTF=9.36211 ITF=670.025M TR=10N )

Hope this helps

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Old 31st October 2003, 05:07 PM   #3
Gunders is offline Gunders  Norway
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Yes, it helps a lot.
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Old 20th January 2010, 04:02 PM   #4
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The model for the 2sc2705 is too optimistic - BF=2k is way too high; something like 160..200 is more realistic.
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