1000
100
10
0.1
MMBTA42L, SMMBTA42L, MMBTA43L
TYPICAL CHARACTERISTICS
TJ = 150°C
25°C
−55°C
VCE = 10 V
1
10
100
IC, COLLECTOR CURRENT (mA)
Figure 1. DC Current Gain
1.2
IC/IB = 10
1.0
0.8
150°C
0.6
25°C
0.4
0.2
−55°C
0.0
0.1
1
10
100
IC, COLLECTOR CURRENT (mA)
Figure 2. Collector−Emitter Saturation Voltage
vs. Collector Current
1.0
0.9
0.8 −55°C
0.7 25°C
0.6
0.5
0.4 150°C
0.3
0.2
0.1
IC/IB = 10
0
0.1
1
10
100
IC, COLLECTOR CURRENT (mA)
Figure 3. Base−Emitter Saturation Voltage vs.
Collector Current
1.0
0.9
0.8 −55°C
0.7 25°C
0.6
0.5
0.4 150°C
0.3
0.2
0.1
IC/IB = 10
0
0.1
1
10
100
IC, COLLECTOR CURRENT (mA)
Figure 4. Base−Emitter On Voltage vs.
Collector Current
0
100
VCE = 10 V
−0.4
−0.8
10
−1.2
−1.6
−2.0
qVB, for VBE
−2.4
−55°C to 150°C
−2.8
0.1
1
10
100
IC, COLLECTOR CURRENT (mA)
Figure 5. Base−Emitter Temperature
Coefficient
1
0.1
0.1
Cibo
Cobo
TJ = 25°C
f = 1 MHz
1
10
100
VR, REVERSE VOLTAGE (VOLTS)
Figure 6. Capacitance
1000
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