NE685 NEC, NE685 Datasheet - Page 13

• Manufacturer Part Number: NE685
• Description: SURFACE MOUNT NPN SILICON HIGH FREQUENCY TRANSISTOR
• Manufacturer: NEC

BJT NONLINEAR MODEL PARAMETERS
(1) Gummel-Poon Model
SCHEMATIC
NE68533 NONLINEAR MODEL
Parameters
RBM
VAR
CJE
MJE
CJC
VJC
VAF
VJE
ISE
IKR
ISC
IRB
IKF
NR
NF
NE
BR
RE
RB
BF
NC
RC
IS
0.40e-12
0.18e-12
7.9e-13
Infinity
7e-16
0.009
0.19
2.19
1.08
12.4
8.34
0.81
0.75
109
Q1
1.3
0.5
15
10
10
1
1
0
2
Parameters
XCJC
MJC
MJS
XTB
CJS
VJS
XTF
VTF
PTF
ITF
XTI
FC
TR
EG
TF
KF
AF
Base
C
BEPKG
L
BX
2e-12
0.011
0.34
0.75
4.58
1e-9
1.11
Q1
0.5
5.2
0
0
0
0
3
0
0
1
L
B
(1)
C
C
CBPKG
CB
Emitter
L
L
E
EX
MODEL RANGE
Frequency:
Bias:
Date:
UNITS
ADDITIONAL PARAMETERS
C
CE
Parameters
Parameter
time
capacitance
inductance
resistance
voltage
current
C
C
L
L
C
C
C
L
L
L
B
E
BX
CX
EX
CB
CE
CBPKG
CEPKG
BEPKG
C
Q1
CEPKG
L
CX
0.05 to 3.0 GHz
V
7/97
CE
= 0.5 V to 6 V, I
Collector
seconds
farads
henries
ohms
volts
amps
0.13e-12
0.14e-12
0.85e-9
1.15e-9
0.15e-12
0.1e-12
0.05e-12
0.3e-9
0.3e-9
0.3e-9
C
68533
Units
= 0.5 mA to 20 mA
NE685 SERIES