MMBTA70LT1 Datasheet, PDF (4/5 Pages) Motorola, Inc – General Purpose Transistor

LESHAN RADIO COMPANY, LTD.
TYPICAL DYNAMIC CHARACTERISTICS
MMBTA70LT1
500
300
200
100
70
50
30
20
10
7.0
5.0
1.0
V CC = 3.0 V
I C /I B = 10
T J = 25°C
tr
t d @ V BE(off) = 0.5 V
2.0 3.0 5.0 7.0 10
20 30 50 70 100
I C , COLLECTOR CURRENT (mA)
Figure 11. Turn–On Time
500
T J = 25°C
300
V CE = 20 V
5.0 V
200
100
70
50
0.5 0.7 1.0
2.0 3.0 5.0 7.0 10
20 30 50
I C , COLLECTOR CURRENT (mA)
Figure 13. Current–Gain — Bandwidth Product
20
10
7.0
5.0
3.0
2.0
1.0
0.7
0.5
0.3
0.2
0.1 0.2
h fe~~ 200
@ I C = –1.0 mA
V CE = –10 Vdc
f = 1.0 kHz
T A = 25°C
0.5 1.0 2.0
5.0 10 20
50 100
I C , COLLECTOR CURRENT (mA)
Figure 15. Input Impedance
1000
700
V CC = –3.0 V
500
I C /I B = 10
300
ts
I B1 = I B2
T J = 25°C
200
100
70
50
tf
30
20
10
–1.0
–2.0 –3.0 –5.0 –7.0 –10
–20 –30 –50 –70 –100
I C , COLLECTOR CURRENT (mA)
Figure 12. Turn–Off Time
10
T J = 25°C
7.0
C ib
5.0
3.0
2.0
C ob
1.0
0.5 0.7 1.0
2.0 3.0 5.0 7.0 10
20 30 50
V R , REVERSE VOLTAGE (VOLTS)
Figure 14. Capacitance
200
V CE = 10 Vdc
100 ^{f = 1.0 kHz}
70 T A = 25°C
50
h fe ^~~ 200
30
@ I C = 1.0 mA
20
10
7.0
5.0
3.0
2.0
0.1 0.2
0.5 1.0 2.0
5.0 10 20
50 100
I C , COLLECTOR CURRENT (mA)
Figure 16. Output Admittance
M31–4/5