2001. 2. 24
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SEMICONDUCTOR
TECHNICAL DATA
KTC3879S
EPITAXIAL PLANAR NPN TRANSISTOR
Revision No : 2
HIGH FREQUENCY APPLICATION.
HF, VHF BAND AMPLIFIER APPLICATION.
FEATURE
High Power Gain : G
pe
=29dB(Typ.) (f=10.7MHz)
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 )
Note : h
FE
Classification R:40 80, O:70 140, Y:120 240
h Rank
Type Name
Marking
Lot No.
R
FE
CHARACTERISTIC
SYMBOL
TEST CONDITION
MIN.
TYP.
MAX.
UNIT
Collector Cut-off Current
I
CBO
V
CB
=35V, I
E
=0
-
-
0.1
A
Emitter Cut-off Current
I
EBO
V
EB
=4V, I
C
=0
-
-
1.0
A
DC Current Gain
h
FE
(Note)
V
CE
=12V, I
C
=2mA
40
-
240
Collector-Emitter Saturation Voltage
V
CE(sat)
I
C
=10mA, I
B
=1mA
-
-
0.4
V
Base-Emitter Saturation Voltage
V
BE(sat)
I
C
=10mA, I
B
=1mA
-
-
1.0
V
Transition Frequency
f
T
V
CE
=10V, I
C
=1mA
100
-
400
MHz
Collector Output Capacitance
C
ob
V
CB
=10V, I
E
=0, f=1MHz
1.4
2.0
3.2
pF
Collector-Base Time Constant
C
C
rbb
'
V
CE
=10V, I
E
=-1mA, f=30MHz
10
-
50
pS
Power Gain
G
pe
V
CC
=6V, I
E
=-1mA, f=10.7MHz
27
29
33
dB
CHARACTERISTIC
SYMBOL
RATING
UNIT
Collector-Base Voltage
V
CBO
35
V
Collector-Emitter Voltage
V
CEO
30
V
Emitter-Base Voltage
V
EBO
4
V
Collector Current
I
C
50
mA
Emitter Current
I
E
-50
mA
Collector Power Dissipation
P
C
150
mW
Junction Temperature
T
j
150
Storage Temperature Range
T
stg
-55 150
2001. 2. 24
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KTC3879S
Revision No : 2
y PARAMETERS (Typ.)
(1) (COMMON EMITTER f=455kHz, Ta=25 )
(2) (COMMON EMITTER f=10.7MHz, Ta=25 )
CHARACTERISTIC
SYMBOL
KTC3879S-R
KTC3879S-O
KTC3879S-Y
UNIT
Collector-Emitter Voltage
V
CE
6
6
6
V
Emitter Current
I
E
-1
-1
-1
mA
Input Conductance
g
ie
0.58
0.41
0.26
mS
Input Capacitance
C
ie
53
46
38
pF
Output Conductance
g
oe
1.9
2.7
4.8
S
Output Capacitance
C
oe
2.6
2.8
3.6
pF
Forward Transfer Admittance
|y
fe
|
38
38
38
mS
Phase Angle of Forward Transfer Admittance
fe
-0.79
-0.83
-0.92
Reverse Transfer Admittance
|y
re
|
5.7
5.7
6.2
S
Phase Angle of Reverse Transfer Admittance
re
-90
-90
-90
CHARACTERISTIC
SYMBOL
KTC3879S-R
KTC3879S-O
KTC3879S-Y
UNIT
Collector-Emitter Voltage
V
CE
6
6
6
V
Emitter Current
I
E
-1
-1
-1
mA
Input Conductance
g
ie
1.04
0.85
0.65
mS
Input Capacitance
C
ie
49
43
36
pF
Output Conductance
g
oe
10
15
28
S
Output Capacitance
C
oe
2.7
2.9
3.6
pF
Forward Transfer Admittance
|y
fe
|
37
37
37
mS
Phase Angle of Forward Transfer Admittance
fe
-9.6
-10.4
-11.5
Reverse Transfer Admittance
|y
re
|
120
120
140
S
Phase Angle of Reverse Transfer Admittance
re
-90
-90
-90
2001. 2. 24
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KTC3879S
Revision No : 3
20
REVERSE TRANSFER ADMITTANCE
re
1k
-10
-0.3
-0.1
EMITTER CURRENT I (mA)
E
EMITTER CURRENT I (mA)
E
EMITTER CURRENT I (mA)
E
y ,
- I
y - V
CE
COLLECTOR-EMITTER VOLTAGE V (V)
CE
COLLECTOR-EMITTER VOLTAGE V (V)
CE
COLLECTOR-EMITTER VOLTAGE V (V)
1
3
10
30
500
re
REVERSE TRANSFER ADMITTANCE
50
10
2
30
10
3
1
-0.1
-0.3
-3
-5
1
10
5
100
-5
-3
-0.3
-0.1
1
3
10
30
300
10
re
CE
y (
S)
re
REVERSE TRANSFER ADMITTANCE
y (
S)
re
REVERSE TRANSFER ADMITTANCE
y (
S)
5
100
300
COMMON EMITTER
I =-1mA
f=10.7MHz
=-90
Ta=25 C
E
re
Y
R, O
re
re
E
y ,
- V
fe
fe
CE
y ,
- I
fe
fe
E
y (
S)
FORWARD TRANSFER ADMITTANCE
fe
y (mS)
FORWARD TRANSFER ADMITTANCE
fe
y (mS)
-1
-3
50
100
300
500
COMMON EMITTER
V =6V
f=10.7MHz
Ta=25 C
CE
Y
R, O
R,O
Y
y
re
re
-500
-300
-100
-50
-1k
-20
ADMITTANCE
( )
re
PHASE ANGLE OF REVERSE TRANSFER
5
5
30
Y
R, O
5
50
100
-1
-0.3
-0.1
-3
COMMON EMITTER
I =-1mA
f=455kHz
Ta=25 C
E
Y
O
R
R, O, Y
y fe
fe
-1
3
5
10
20
CE
Y
R, O
-1
30
50
CE
Ta=25 C
f=455kHz
V =6V
COMMON EMITTER
R, O, Y
Y
O
fe
R
fe
y
y - V
re
CE
y - I
re
E
30
-5
-3
-10
-0.5
-1
ADMITTANCE
( )
fe
PHASE ANGLE OF FORWARD TRANSFER
ADMITTANCE
( )
fe
PHASE ANGLE OF FORWARD TRANSFER
COMMON EMITTER
I =-1mA
f=455MHz
=-90
Ta=25 C
E
re
COMMON EMITTER
V =6V
f=455MHz
=-90
Ta=25 C
re
2001. 2. 24
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KTC3879S
Revision No : 3
EMITTER CURRENT I (mA)
E
CE
COLLECTOR-EMITTER VOLTAGE V (V)
y ,
- I
fe
fe
E
y ,
- V
fe
fe
CE
FORWARD TRANSFER ADMITTANCE
fe
y (mS)
FORWARD TRANSFER ADMITTANCE
fe
y (mS)
ADMITTANCE
( )
fe
PHASE ANGLE OF FORWARD TRANSFER
ADMITTANCE
( )
fe
PHASE ANGLE OF FORWARD TRANSFER
1
3
10
30
300
20
COMMON EMITTER
V =6V
f=10.7MHz
Ta=25 C
CE
fe
fe
y
10
2
100
-10
-3
-0.3
-0.1
50
100
COMMON EMITTER
I =-1mA
f=10.7MHz
Ta=25 C
E
Y O R
y
fe
R, O, Y
fe
-10
-5
-2
-30
-1
5
30
50
R, O, Y
Y
O
R
-50
-30
-5
-100
-2
-10
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