Datasheet
2011-09-21
2
BF799
Electrical Characteristics at T
A
= 25 °C, unless otherwise specified.
Parameter
Symbol Values Unit
min. typ. max.
DC characteristics
Collector-emitter breakdown voltage
I
C
= 1 mA, I
B
= 0
V
(BR)CEO
20 - - V
Collector-base breakdown voltage
I
C
= 10 µA, I
E
= 0
V
(BR)CBO
30 - -
Base-emitter breakdown voltage
I
E
= 10 µA, I
C
= 0
V
(BR)EBO
3 - -
Collector-base cutoff current
V
CB
= 20 V, I
E
= 0
I
CBO
- - 100 nA
DC current gain
I
C
= 5 mA, V
CE
= 10 V
I
C
= 20 mA, V
CE
= 10 V
h
FE
35
40
95
100
-
250
-
Collector-emitter saturation voltage
I
C
= 20 mA, I
B
= 2 mA
V
CEsat
- 0.1 0.3 V
Base-emitter saturation voltage
I
C
= 20 mA, I
B
= 2 mA
V
BEsat
- - 0.95
AC characteristics
Transition frequency
I
C
= 5 mA, V
CE
= 10 V, f = 100 MHz
I
C
= 20 mA, V
CE
= 8 V, f = 100 MHz
f
T
-
-
800
1100
-
-
MHz
Output capacitance
V
CB
= 10 V, I
E
= 0 mA, f = 1 MHz
C
ob
- 0.96 - pF
Collector-base capacitance
V
CB
= 10 V, f = 1 MHz
C
cb
- 0.7 -
Collector-emitter capacitance
V
CE
= 10 V, f = 1 MHz
C
ce
- 0.28 -
Noise figure
I
C
= 5 mA, V
CE
= 10 V, f = 100 MHz,
Z
S
= 50 Ω
F
- 3 - dB
Output conductance
I
C
= 20 mA, V
CE
= 10 V, f = 35 MHz
g
22e
- 60 - µS