1998. 6. 15
1/1
SEMICONDUCTOR
TECHNICAL DATA
BFQ31
EPITAXIAL PLANAR NPN TRANSISTOR
Revision No : 1
HIGH FREQUENCY APPLICATION.
VHF BAND AMPLIFIER APPLICATION.
MAXIMUM RATING (Ta=25 )
DIM
MILLIMETERS
1. EMITTER
2. BASE
3. COLLECTOR
SOT-23
A
B
C
D
E
2.93 0.20
1.30+0.20/-0.15
0.45+0.15/-0.05
2.40+0.30/-0.20
G
1.90
H
J
K
L
M
N
0.95
0.13+0.10/-0.05
0.00 ~ 0.10
0.55
0.20 MIN
1.00+0.20/-0.10
M
J
K
E
1
2
3
H
G
A
N
C
B
D
1.30 MAX
L
L
P
P
P
7
+
_
ELECTRICAL CHARACTERISTICS (Ta=25 )
CHARACTERISTIC
SYMBOL
RATING
UNIT
Collector-Base Voltage
V
CBO
30
V
Collector-Emitter Voltage
V
CEO
15
V
Emitter-Base Voltage
V
EBO
3
V
Collector Current
I
C
100
mA
Emitter Current
I
E
-100
mA
Collector Power Dissipation
P
C
200
mW
Junction Temperature
T
j
150
Storage Temperature Range
T
stg
-65 150
CHARACTERISTIC
SYMBOL
TEST CONDITION
MIN.
TYP.
MAX.
UNIT
Collector-Emitter Breakdown Voltage
V
(BR)CEO
I
C
=3mA, I
B
=0
15
-
-
V
Collector-Base Breakdown Voltage
V
(BR)CBO
I
C
=1 A, I
E
=0
30
-
-
V
Emitter-Base Breakdown Voltage
V
(BR)EBO
I
E
=10 A, I
C
=0
3.0
-
-
V
Collector Cut-off Current
I
CBO
V
CB
=15V, I
E
=0
-
-
10
nA
DC Current Gain
h
FE
V
CE
=1V, I
C
=3mA
20
-
-
Base-Emitter Saturation Voltage
V
BE(sat)
I
C
=10mA, I
B
=1mA
-
-
1.0
V
Collector-Emitter Saturation Voltage
V
CE(sat)
I
C
=10mA, I
B
=1mA
-
-
0.4
V
Transition Frequency
f
T
I
C
=4mA, V
CE
=10V, f=100MHz
600
-
-
MHz
Collector Input Capacitance
C
ib
V
EB
=0.5V, I
C
=0, f=1MHz
-
-
2.0
pF
Collector Output Capacitance
C
ob
V
CB
=0V, I
E
=0, f=1MHz
-
-
3.0
pF
V
CB
=10V, I
E
=0, f=1MHz
-
-
1.7
Noise Figure
NF
V
CE
=6V, I
C
=1mA,
Rg=400 , f=60MHz
-
-
6.0
dB
Type Name
Marking
Lot No.
S2
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