CDIL BF 420 Datasheet
SEMICONDUCTOR
BF420
TECHNICAL DATA
HIGH VOLTAGE SWITCHING AND AMPLIFIER APPLICATION.
COLOR TV CHROMA OUTPUT APPLICATIONS.
FEATURES
ᴌHigh Voltage : V
ᴌComplementary to BF421.
MAXIMUM RATING (Ta=25ᴱ)
CHARACTERISTIC SYMBOL RATING UNIT
Collector-Base Voltage
Collector-Emitter Voltage
Emitter-Base Voltage
Collector Current
Collector Power Dissipation
Base Current
Junction Temperature
Storage Temperature Range
CEO
>300V
DC
Peak
V
CBO
V
CEO
V
EBO
I
C
I
CP
P
C
I
B
T
j
T
stg
300 V
300 V
5 V
50
100
625 mW
50 mA
150
-65ᴕ150
mA
ᴱ
ᴱ
SILICON NPN TRIPLE DIFFUSED TYPE
B
K
D
F
1 2
L
E
G
H
F
C
3
M
AJ
1. EMITTER
2. COLLECTOR
3. BASE
C
DIM MILLIMETERS
N
A
4.70 MAX
B
4.80 MAX
C
3.70 MAX
D
0.45
1.00
E
F
1.27
G
0.85
H
0.45
J
K
L
_
14.00 0.50
+
0.55 MAX
2.30
0.45 MAXM
1.00N
TO-92
ELECTRICAL CHARACTERISTICS (Ta=25ᴱ)
CHARACTERISTIC SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT
Collector Cut-off Current
Emitter Cut-off Current
DC Current Gain
Collector-Emitter Saturation Voltage
Base-Emitter Voltage
Transition Frequency
Reverse Transfer Capacitance
V
I
CBO
I
EBO
h
FE
CE(sat)
V
BE
f
T
C
re
VCB=200V, IE=0
VCB=200V, IE=0, Tj=150ᴱ
VEB=5V, IC=0
VCE=20V, IC=25mA
IC=30mA, IB=5mA
VCE=20V, IC=25mA
VCE=10V, IC=10mA
VCB=30V, IE=0, f=1MHz
- - 10
- - 10
nA
ỌA
- - 50 nA
50 - - -
- - 0.6 V
- 0.75 - V
60 - - MHz
- - 1.6 pF
1998. 10. 31 1/3
Revision No : 2
I - V (LOW VOLTAGE REGION)
CEC
60
1.6
50
C
1.2
40
30
20
10
COLLECTOR CURRENT I (mA)
0
0
4 8 12 16 20 24 28
COLLECTOR-EMITTER VOLTAGE V (V)
COMMON EMITTER
Ta=25 C
0.8
0.6
0.4
0.3
0.2
0.15
0.1
I =0.05mA
B
0
CE
BF420
500
COMMON EMITTER
300
FE
Ta=25 C
100
50
30
DC CURRENT GAIN h
10
0
COLLECTOR CURRENT I (mA)
h - I
FE C
31010.3
V =20V
CE
30 100
C
10
5
500
300
FE
100
50
30
DC CURRENT GAIN h
10
0
0.3
COLLECTOR CURRENT I (mA)
2
1
0.5
0.3
CE(sat)
0.1
0.05
VOLTAGE V (V)
h - I
Ta=100 C
Ta=25 C
Ta=-25 C
CFE
COMMON EMITTER
V =10V
CE
1310 10030
C
V - I
CE(sat) C
COMMON EMITTER
I /I =5
C
B
Ta=100 C
Ta=25 C
Ta=-25 C
V - I
CE(sat) C
2
1
0.5
0.3
CE(sat)
0.1
0.05
0.03
VOLTAGE V (V)
0.01
COLLECTOR-EMITTER SATURATION
0.3
I /I =10
B
C
5
2
1310
COLLECTOR CURRENT I (mA)
I - V
50
COMMON EMITTER
V =10V
CE
40
C
30
20
10
Ta=100 C
COMMON EMITTER
Ta=25 C
30 100
C
BEC
C
25
-25 C
Ta=
Ta=
COLLECTOR CURRENT I (mA)
0.01
COLLECTOR-EMITTER SATURATION
1998. 10. 31 2/3
0.3
1 3 10 10030
COLLECTOR CURRENT I (mA)
C
Revision No : 2
0
0
0.2 0.4 0.6 0.8 1.0 1.2
BASE-EMITTER VOLTAGE V (V)
BE
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