2SC2979 LTspice Model (Free SPICE Model)

1. All Rights Reserved Copyright (C) Bee Technologies Inc. 2004
Device Modeling Report
Bee Technologies Inc.
COMPONENTS: BIPOLAR JUNCTION TRANSISTOR
PART NUMBER: 2SC2979
MANUFACTURER: RENESAS

2. All Rights Reserved Copyright (C) Bee Technologies Inc. 2004
BJT SPICE MODEL
*$
*PART NUMBER: 2SC2979
*MANUFACTURER: RENESAS
*VCBO=900V, IC=3A
*All Rights Reserved Copyright © Bee Technologies Inc. 2004
.MODEL Q2SC2979 NPN
+ IS=43.966E-12 VAF=28.530
+ IKF=.87836 ISE=304.97E-12
+ NE=1.3348 BR=7.1988 VAR=315 IKR=1.5593
+ ISC=199.77E-12 NC=1.5628 NK=.67042
+ RB=.4941 RC=.52125 CJE=2.7232E-9
+ VJE=.6031 MJE=.32602 CJC=213.35E-12
+ VJC=.40348 MJC=.42559 TF=540.00E-9
+ XTF=10 VTF=10 ITF=1 TR=10.000E-9
*$

3. All Rights Reserved Copyright (C) Bee Technologies Inc. 2004
PSpice
model
parameter
Model description
IS Saturation Current
BF Ideal Maximum Forward Beta
NF Forward Current Emission Coefficient
VAF Forward Early Voltage
IKF Forward Beta Roll-off Knee Current
ISE Non-ideal Base-Emitter Diode Saturation Current
NE Non-ideal Base-Emitter Diode Emission Coefficient
BR Ideal Maximum Reverse Beta
NR Reverse Emission Coefficient
VAR Reverse Early Voltage
IKR Reverse Beta Roll-off Knee Current
ISC Non-ideal Base-Collector Diode Saturation Current
NC Non-ideal Base-Collector Diode Emission Coefficient
NK Forward Beta Roll-off Slope Exponent
RE Emitter Resistance
RB Base Resistance
RC Series Collector Resistance
CJE Zero-bias Emitter-Base Junction Capacitance
VJE Emitter-Base Junction Potential
MJE Emitter-Base Junction Grading Coefficient
CJC Zero-bias Collector-Base Junction Capacitance
VJC Collector-base Junction Potential
MJC Collector-base Junction Grading Coefficient
FC Coefficient for Onset of Forward-bias Depletion
Capacitance
TF Forward Transit Time
XTF Coefficient for TF Dependency on Vce
VTF Voltage for TF Dependency on Vce
ITF Current for TF Dependency on Ic
PTF Excess Phase at f=1/2pi*TF
TR Reverse Transit Time
EG Activation Energy
XTB Forward Beta Temperature Coefficient
XTI Temperature Coefficient for IS

4. All Rights Reserved Copyright (C) Bee Technologies Inc. 2004
Reverse
Reverse Early Voltage Characteristic
Ic
Vce
VAR
(X1,Y1)
(X2,Y2)
Y=aX+b

5. All Rights Reserved Copyright (C) Bee Technologies Inc. 2004
Reverse DC Beta Characteristic (Ie vs. hFE)
Measurement
Simulation

6. All Rights Reserved Copyright (C) Bee Technologies Inc. 2004
Forward
Forward Early Voltage Characteristic
Ic
Vce
VAF
(X1,Y1)
(X2,Y2)
Y=aX+b

7. All Rights Reserved Copyright (C) Bee Technologies Inc. 2004
C-B Capacitance Characteristic
E-B Capacitance Characteristic
Measurement
Simulation
Measurement
Simulation

8. All Rights Reserved Copyright (C) Bee Technologies Inc. 2004
BJT Ic-hFE Characteristics
Circuit simulation result
Evaluation circuit
V15Vdc
0
Q1
Q2SC2979
I1
0Adc

9. All Rights Reserved Copyright (C) Bee Technologies Inc. 2004
Comparison Graph
Circuit simulation result
Simulation result
hFE
Ic(A)
Measurement Simulation
%Error
0.01 17 16.913 0.511
0.02 19 19.367 1.931
0.05 22.5 22.591 0.404
0.1 24 24.448 1.866
0.2 25 24.881 0.476
0.5 21 20.725 1.309
1 13 13.257 1.976
2 6 5.743 4.283

10. All Rights Reserved Copyright (C) Bee Technologies Inc. 2004
BJT Vce (sat) voltage & Vbe (sat) voltage Characteristics
Circuit simulation result
Evaluation circuit
Simulation result
Test condition: IC/IB = 5, IC=0.75A
Vce(sat)(V) Vbe(sat)(V)
Measurement Simulation Error(%) Measurement Simulation Error(%)
0.45 0.447 0.67 0.725 0.726 0.138
I2
0.75Adc
I1
0.15Adc
0
Q3
Q2SC2979

11. All Rights Reserved Copyright (C) Bee Technologies Inc. 2004
Switching Characteristics
Circuit simulation result
Evaluation circuit
Simulation result
Ts(us) Tf(us)
Measurement Simulation Error (%) Measurement Simulation Error (%)
2.75 2.746 0.145% 1 0.991 0.9
R3
150
0
L2
50nH
R1
30.2
V2
250
D3
DTR
Q2
Q2SC2979
V1
TD = 1us
TF = 50ns
PW = 10us
PER = 50us
V1 = -4
TR = 50ns
V2 = 10
R2
5.61
L1
50nH
D2
DTR

12. All Rights Reserved Copyright (C) Bee Technologies Inc. 2004
Output Characteristics
Circuit simulation result
Evaluation circuit
Q1
Q2SC2979
I1
0Adc
0
V1
0Vdc
IB = 0.2A
IB = 1A
IB = 0.6A
IB = 0.4A
IB = 0.8A