Datasheet

BC549C, BC550C
http://onsemi.com
3
2.0
1.5
1.0
0.2
0.3
0.4
0.6
0.8
2000.2 0.5 1.0 2.0 5.0 10 20 50 100
I
C
, COLLECTOR CURRENT (mAdc)
Figure 2. Normalized DC Current Gain
h
FE
, NORMALIZED DC CURRENT GAIN
V
CE
= 10 V
T
A
= 25°C
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
0.20.1 0.5 1.0 2.0 5.0 10 20 50 100
I
C
, COLLECTOR CURRENT (mAdc)
Figure 3. “Saturation” and “On” Voltages
V, VOLTAGE (VOLTS)
T
A
= 25°C
V
BE(sat)
@ I
C
/I
B
= 10
V
BE(on)
@ V
CE
= 10 V
V
CE(sat)
@ I
C
/I
B
= 10
400
20
30
40
60
80
100
200
300
0.5 1.00.7 2.0 5.0 7.0 10 20 50
I
C
, COLLECTOR CURRENT (mAdc)
Figure 4. Current−Gain — Bandwidth Product
f
T
, CURRENT−GAIN  BANDWIDTH PRODUCT (MHz)
C, CAPACITANCE (pF)
10
1.0
2.0
3.0
5.0
7.0
0.4 0.6 1.0 2.0 4.0 10 20 40
V
R
, REVERSE VOLTAGE (VOLTS)
Figure 5. Capacitance
V
CE
= 10 V
T
A
= 25°C
T
A
= 25°C
C
ib
C
ob
r
b
, BASE SPREADING RESISTANCE (OHMS)
170
160
150
140
130
120
100.1 0.2 0.5 1.0 2.0 5.0
I
C
, COLLECTOR CURRENT (mAdc)
Figure 6. Base Spreading Resistance
V
CE
= 10 V
f = 1.0 kHz
T
A
= 25°C