Datasheet

BC556B, BC557A, B, C, BC558B
http://onsemi.com
3
BC557/BC558
Figure 1. Normalized DC Current Gain
I
C
, COLLECTOR CURRENT (mAdc)
2.0
Figure 2. “Saturation” and “On” Voltages
I
C
, COLLECTOR CURRENT (mAdc)
−0.2
0.2
Figure 3. Collector Saturation Region
I
B
, BASE CURRENT (mA)
Figure 4. Base−Emitter Temperature Coefficient
I
C
, COLLECTOR CURRENT (mA)
−0.6
−0.7
−0.8
−0.9
−1.0
−0.5
0
−0.2
−0.4
−0.1
−0.3
1.6
1.2
2.0
2.8
2.4
−1.2
−1.6
−2.0
−0.02 −1.0
−10
0
−20
−0.1
−0.4
−0.8
h
FE
, NORMALIZED DC CURRENT GAIN
V, VOLTAGE (VOLTS)
V
CE
, COLLECTOR−EMITTER VOLTAGE (V)
VB
, TEMPERATURE COEFFICIENT (mV/ C)°θ
1.5
1.0
0.7
0.5
0.3
−0.2
−10 −100
−1.0
T
A
= 25°C
V
BE(sat)
@ I
C
/I
B
= 10
V
CE(sat)
@ I
C
/I
B
= 10
V
BE(on)
@ V
CE
= −10 V
V
CE
= −10 V
T
A
= 25°C
−55°C to +125°C
I
C
= −100 mA
I
C
= −20 mA
−0.5 −1.0 −2.0 −5.0 −10 −20 −50 −100 −200 −0.1
−0.2 −0.5
−1.0
−2.0 −5.0
−10
−20 −50
−100
I
C
= −200 mAI
C
= −50 mAI
C
=
−10 mA
Figure 5. Capacitances
V
R
, REVERSE VOLTAGE (VOLTS)
10
Figure 6. Current−Gain − Bandwidth Product
I
C
, COLLECTOR CURRENT (mAdc)
−0.4
1.0
80
100
200
300
400
60
20
40
30
7.0
5.0
3.0
2.0
−0.5
C, CAPACITANCE (pF)
f, CURRENT−GAIN − BANDWIDTH PRODUCT (MHz)
T
T
A
= 25°C
C
ob
C
ib
−0.6 −1.0 −2.0 −4.0 −6.0 −10 −20 −30 −40
150
−1.0 −2.0 −3.0 −5.0 −10 −20 −30 −50
V
CE
= −10 V
T
A
= 25°C
T
A
= 25°C
1.0