MMBTA42LT1, MMBTA43LT1
120
100
hFE , DC CURRENT GAIN
80
60
40
−55°C
20
0
25°C
T
J
= +125°C
V
CE
= 10 Vdc
0.1
1.0
I
C
, COLLECTOR CURRENT (mA)
10
100
Figure 1. DC Current Gain
C
eb
@ 1MHz
C, CAPACITANCE (pF)
BANDWIDTH (MHz)
f T, CURRENT−GAIN
100
80
70
60
50
40
30
20
10
1.0
2.0 3.0
5.0 7.0 10
20
30
I
C
, COLLECTOR CURRENT (mA)
T
J
= 25°C
V
CE
= 20 V
f = 20 MHz
50 70 100
10
1.0
C
cb
@ 1MHz
0.1
0.1
1.0
10
100
V
R
, REVERSE VOLTAGE (VOLTS)
1000
Figure 2. Capacitance
Figure 3. Current−Gain − Bandwidth
1.4
1.2
V, VOLTAGE (VOLTS)
1.0
0.8
0.6
0.4
0.2
0.0
0.1
1.0
10
I
C
, COLLECTOR CURRENT (mA)
100
V
CE(sat)
@ 25°C, I
C
/I
B
= 10
V
CE(sat)
@ 125°C, I
C
/I
B
= 10
V
CE(sat)
@ −55°C, I
C
/I
B
= 10
V
BE(sat)
@ 25°C, I
C
/I
B
= 10
V
BE(sat)
@ 125°C, I
C
/I
B
= 10
V
BE(sat)
@ −55°C, I
C
/I
B
= 10
V
BE(on)
@ 25°C, V
CE
= 10 V
V
BE(on)
@ 125°C, V
CE
= 10 V
V
BE(on)
@ −55°C, V
CE
= 10 V
Figure 4. “ON” Voltages
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