BC857/BC858
ELECTRICAL CHARACTERISTICS
(Continued)
Symb ol
h
ie
Parameter
Input Impedance
Test Cond ition s
V
CE
= -5 V I
C
= -2 mA
for
g rou p A
for
g rou p B
V
CE
= -5 V I
C
= -2 mA
for
g rou p A
for
g rou p B
V
CE
= -5 V I
C
= -2 mA
for
g rou p A
for
g rou p B
V
CE
= -5 V I
C
= -2 mA
for
g rou p A
for
g rou p B
f = 1KHz
1.6
3.2
f = 1KHz
1.5
2
f = 1KHz
220
330
f = 1KHz
18
30
30
60
µs
µs
2.7
4.5
4.5
8.5
KΩ
KΩ
10
10
-4
-4
Min.
Typ .
Max.
Un it
h
re
Reverse Voltage Ratio
h
f e
Small Signal Current
Gain
Output Admittance
h
oe
∗
Pulsed: Pulse duration = 300
µs,
duty cycle
≤
2 %
3/5