RoHS
BF420/BF422
BF420
BF422
TRANSISTOR (NPN)
TO-92
1. EMITTER
FEATURES
Power dissipation
P
CM:
0.83 W (Tamb=25℃)
Collector current
I
CM:
0.1
A
Collector-base voltage
V
(BR)CBO
:
BF420 300 V
BF422 250 V
Operating and storage junction temperature range
T
J
, T
stg
: -55℃ to +150℃
ELECTRICAL CHARACTERISTICS (Tamb=25℃
Parameter
Collector-base breakdown voltage
Collector-emitter breakdown voltage
BF420
2. COLLECTOR
3. BASE
unless otherwise specified)
Symbol
BF422
Emitter-base breakdown voltage
Collector cut-off current
Emitter cut-off current
DC current gain
Collector-emitter saturation voltage
Transition frequency
W
J
E
E
C
E
L
BF422
R
T
BF420
V
CBO
V
CEO
O
I
CBO
I
EBO
N
Test
C
I
C
O
1 2 3
L
,
.
MAX
D
T
conditions
MIN
300
250
300
250
5
UNIT
V
Ic=100µA , I
E
=0
I
C
= 1mA , I
B
=0
I
E
=100µA, I
C
=0
V
CB
=200V, I
E
=0
V
EB
=5V, I
C
=0
V
V
0.01
0.05
µA
µA
V
EBO
h
FE(1)
V
CE
=20V, I
C
=25mA
I
C
=30 mA, I
B
= 5mA
V
CE
=10V, I
C
= 10mA
50
0.6
V
V
CE(sat)
f
T
f =
100MHz
60
MHz
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