MMBT2222LT1 MMBT2222ALT1
200
100
70
50
t, TIME (ns)
30
20
10
7.0
5.0
3.0
2.0
5.0 7.0
10
200 300
20 30
50 70 100
I
C
, COLLECTOR CURRENT (mA)
500
I
C
/I
B
= 10
T
J
= 25°C
t
r
@ V
CC
= 30 V
t
d
@ V
EB(off)
= 2.0 V
t
d
@ V
EB(off)
= 0
500
300
200
100
70
50
30
20
10
7.0
5.0
t′
s
= t
s
- 1/8 t
f
V
CC
= 30 V
I
C
/I
B
= 10
I
B1
= I
B2
T
J
= 25°C
t, TIME (ns)
t
f
5.0 7.0 10
20 30
50 70 100
I
C
, COLLECTOR CURRENT (mA)
200
300
500
Figure 5. Turn–On Time
10
8.0
6.0
4.0
2.0
0
0.01 0.02 0.05 0.1 0.2
I
C
= 1.0 mA, R
S
= 150
Ω
500
µA,
R
S
= 200
Ω
100
µA,
R
S
= 2.0 kΩ
50
µA,
R
S
= 4.0 kΩ
10
Figure 6. Turn–Off Time
NF, NOISE FIGURE (dB)
NF, NOISE FIGURE (dB)
R
S
= OPTIMUM
R
S
=
SOURCE
R
S
=
RESISTANCE
f = 1.0 kHz
8.0
6.0
4.0
2.0
0
50
I
C
= 50
µA
100
µA
500
µA
1.0 mA
0.5 1.0 2.0
5.0 10
20
50 100
100 200
500 1.0 k 2.0 k
5.0 k 10 k 20 k
50 k 100 k
f, FREQUENCY (kHz)
R
S
, SOURCE RESISTANCE (OHMS)
Figure 7. Frequency Effects
f T, CURRENT-GAIN BANDWIDTH PRODUCT (MHz)
Figure 8. Source Resistance Effects
500
V
CE
= 20 V
T
J
= 25°C
30
20
CAPACITANCE (pF)
C
eb
10
7.0
5.0
3.0
2.0
0.1
0.2 0.3
0.5 0.7 1.0
2.0 3.0 5.0 7.0 10
REVERSE VOLTAGE (VOLTS)
C
cb
300
200
100
70
50
1.0
2.0
3.0
5.0 7.0 10
20 30
I
C
, COLLECTOR CURRENT (mA)
50
70 100
20 30
50
Figure 9. Capacitances
Figure 10. Current–Gain Bandwidth Product
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