SMBT3904 Datasheet, PDF (3/7 Pages) Siemens Semiconductor Group – NPN Silicon Switching Transistor

SMBT 3904
Electrical Characteristics
at TA = 25 ˚C, unless otherwise specified.
Parameter
AC characteristics
Transition frequency
IC = 10 mA, VCE = 20 V, f = 100 MHz
Output capacitance
VCB = 5 V, f = 1 MHz
Input capacitance
VEB = 0.5 V, f = 1 MHz
Input impedance
IC = 1 mA, VCE = 10 V, f = 1 kHz
Open-circuit reverse voltage transfer ratio
IC = 1 mA, VCE = 10 V, f = 1 kHz
Short-circuit forward current transfer ratio
IC = 1 mA, VCE = 10 V, f = 1 kHz
Open-circuit output admittance
IC = 1 mA, VCE = 10 V, f = 1 kHz
Noise figure
IC = 100 µA, VCE = 5 V, RS = 1 kΩ, f = 1 kHz
VCC = 3 V, IC = 10 mA, IB1 = 1 mA
VBE(off) = 0.5 V
Delay time
Rise time
VCC = 3 V, IC = 10 mA, IB1 = IB2 = 1 mA
Storage time
Fall time
(see diagrams)
Symbol
Values
Unit
min. typ. max.
fT
300 –
Cobo
–
–
Cibo
–
–
h11e
1
–
h12e
0.5 –
h21e
100 –
h22e
1
–
F
–
–
–
MHz
4
pF
8
10
kΩ
8
10^{– 4}
400 –
40
µS
5
dB
td
–
–
35 ns
tr
–
–
35 ns
tstg
–
–
200 ns
tf
–
–
50 ns
Semiconductor Group
3