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2N4123
Typical Characteristics
Base-Emitter ON Voltage vs
Collector Current
0.1 1 10 100
0.2
0.4
0.6
0.8
1
I - COLLECTOR CURRENT (mA)
V - BASE-EMITTER ON VOLTAGE (V)
BE(ON)
C
V = 5V
CE
25 °C
125 °C
- 40 °C
NPN General Purpose Amplifier
(continued)
Base-Emitter Saturation
Voltage vs Collector Current
0.1 1 10 100
0.4
0.6
0.8
1
I - COLLECTOR CURRENT (mA)
V - BASE-EMITTER VOLTAGE (V)
BESAT
C
β
= 10
25 °C
125 °C
- 40 °C
Collector-Emitter Saturation
Voltage vs Collector Current
0.1 1 10 100
0.05
0.1
0.15
I - COLLECTOR CURRENT (mA)
V - COLLECTOR-EMITTER VOLTAGE (V)
CESAT
25 °C
C
β
= 10
125 °C
- 40 °C
Collector-Cutoff Current
vs Ambient Temperature
25 50 75 100 125 150
0.1
1
10
100
500
T - AMBIENT TEMPERATURE ( C)
I - COLLECTOR CURRENT (nA)
A
V
= 30V
CB
CBO
°
Capacitance vs
Reverse Bias Voltage
0.1 1 10 100
1
2
3
4
5
10
REVERSE BIAS VOLTAGE (V)
CAPACITANCE (pF)
C
obo
C
ibo
f = 1.0 MHz
Typical Pulsed Current Gain
vs Collector Current
0.1 1 10 100
0
100
200
300
400
500
I - COLLECTOR CURRENT (mA)
h - TYPICAL PULSED CURRENT GAIN
FE
- 40 °C
25 °C
C
V = 5V
CE
125 °C