BC857T
Jul-02-20013
Electrical Characteristics at TA = 25 °C, unless otherwise specified.
Parameter Symbol Values Unit
min. typ. max.
AC characteristics
Transition frequency
IC = 20 mA, VCE = 5 V, f = 100 MHz fT- 250 - MHz
Collector-base capacitance
VCB = 10 V, f = 1 MHz Ccb - 2.5 - pF
Emitter-base capacitance
VEB = 0.5 V, f = 1 MHz Ceb - 11 -
Short-circuit input impedance
IC = 2 mA, VCE = 5 V, f = 1 kHz
BC857AT
BC857BT
h11e
-
-
2.7
4.5
-
-
k
Open-circuit reverse voltage transf.ratio
IC = 2 mA, VCE = 5 V, f = 1 kHz
BC857AT
BC857BT
h12e
-
-
1.5
2
-
-
10-4
Short-circuit forward current transf.ratio
IC = 2 mA, VCE = 5 V, f = 1 kHz
BC857AT
BC857BT
h21e
-
-
200
330
-
-
-
Open-circuit output admittance
IC = 2 mA, VCE = 5 V, f = 1 kHz
BC857AT
BC857BT
h22e
-
-
18
30
-
-
S