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KEC |
SEMICONDUCTOR
TECHNICAL DATA
HIGH VOLTAGE SWITCHING AND AMPLIFIER APPLICATION.
COLOR TV CHROMA OUTPUT APPLICATIONS.
FEATURES
High Voltage : VCEO>300V
Complementary to BF421.
MAXIMUM RATING (Ta=25 )
CHARACTERISTIC
SYMBOL
Collector-Base Voltage
Collector-Emitter Voltage
Emitter-Base Voltage
Collector Current
DC
Peak
Collector Power Dissipation
Base Current
Junction Temperature
VCBO
VCEO
VEBO
IC
ICP
PC
IB
Tj
Storage Temperature Range
Tstg
RATING
300
300
5
50
100
625
50
150
-65 150
UNIT
V
V
V
mA
mW
mA
BF420
SILICON NPN TRIPLE DIFFUSED TYPE
BC
KE
G
D
H
FF
1 23
N DIM MILLIMETERS
A 4.70 MAX
B 4.80 MAX
C 3.70 MAX
D 0.45
E 1.00
F 1.27
G 0.85
H 0.45
J 14.00 +_0.50
K 0.55 MAX
L 2.30
M 0.45 MAX
N 1.00
1. EMITTER
2. COLLECTOR
3. BASE
TO-92
ELECTRICAL CHARACTERISTICS (Ta=25 )
CHARACTERISTIC
SYMBOL
Collector Cut-off Current
Emitter Cut-off Current
DC Current Gain
Collector-Emitter Saturation Voltage
Base-Emitter Voltage
Transition Frequency
Reverse Transfer Capacitance
ICBO
IEBO
hFE
VCE(sat)
VBE
fT
Cre
TEST CONDITION
VCB=200V, IE=0
VCB=200V, IE=0, Tj=150
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
MIN.
-
-
-
50
-
-
60
-
TYP.
-
-
-
-
-
0.75
-
-
MAX.
10
10
50
-
0.6
-
-
1.6
UNIT
nA
A
nA
-
V
V
MHz
pF
1998. 10. 31
Revision No : 2
1/3
BF420
IC - VCE (LOW VOLTAGE REGION)
60
50
40
30
20
10
0
0
1.6 1.2
COMMON EMITTER
Ta=25 C
0.8
0.6
0.4
0.3
0.2
0.15
0.1
I B =0.05mA
0
4 8 12 16 20 24 28
COLLECTOR-EMITTER VOLTAGE VCE (V)
hFE - IC
500
COMMON EMITTER
300 VCE =10V
Ta=100 C
Ta=25 C
100
Ta=-25 C
50
30
10
0
0.3
1
3 10 30 100
COLLECTOR CURRENT IC (mA)
VCE(sat) - IC
2
COMMON EMITTER
1 IC /I B=5
0.5
0.3
Ta=100 C
0.1
0.05
Ta=25 C
Ta=-25 C
0.01
0.3
1
3 10 30 100
COLLECTOR CURRENT IC (mA)
1998. 10. 31
Revision No : 2
hFE - IC
500
300
COMMON EMITTER
Ta=25 C
100
50
30
V CE =20V
10
5
10
0
0.3
1
3 10 30 100
COLLECTOR CURRENT IC (mA)
VCE(sat) - IC
2
COMMON EMITTER
1 Ta=25 C
0.5
0.3
IC/IB =10
0.1
5
0.05
0.03 2
0.01
0.3
1
3 10 30 100
COLLECTOR CURRENT IC (mA)
IC - VBE
50
COMMON EMITTER
VCE =10V
40
30
20
10
0
0 0.2 0.4 0.6 0.8 1.0 1.2
BASE-EMITTER VOLTAGE VBE (V)
2/3
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