Any and all SANYO products described or contained herein do not have specifications that can handle
applications that require extremely high levels of reliability, such as life-support systems, aircraft’s
control systems, or other applications whose failure can be reasonably expected to result in serious
physical and/or material damage. Consult with your SANYO representative nearest you before using
any SANYO products described or contained herein in such applications.
SANYO assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges,or other
parameters) listed in products specifications of any and all SANYO products described or contained
herein.
NPN Epitaxial Planar Silicon Transistor
UHF, VHF Oscillator Mixer,
HF Amplifier Applications
Ordering number:ENN1944B
2SC3771
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
62404TN (PC)/N3098HA (KT)/5318MO/5137KI/O115KI, TS No.1944–1/5
0.4
0.95 0.95
1.9
2.9
0.5
1.5
2.5
0.5
0.16
0 to 0.1
0.8
1.1
2
3
1
Specifications
Absolute Maximum Ratings at Ta = 25C
Package Dimensions
unit:mm
2018B
[2SC3771]
Applications
UHF/VHF frequency converters, local oscillators, HF
amplifiers.
Features
High power gain : PG=10dB typ (f=0.9GHz).
PG=16dB typ (f=0.4GHz).
Small noise figure : NF=3.5dB typ (f=0.9GHz).
High cutoff frequency : fT=2.2GHz typ.
C
Electrical Characteristics at Ta = 25C
1 : Base
2 : Emitter
3 : Collector
SANYO : CP
* : The 2SC3771 is classified by 5mA hFE as follows :
Continued on next page.
(Note) Marking : KY
hFE rank : 2, 3, 4
k
n
a
R
234
h E
F
0
8
o
t
0
40
2
1
o
t
0
60
0
2
o
t
0
1
r
e
t
e
m
a
r
a
Pl
o
b
m
y
Ss
n
o
i
t
i
d
n
o
Cs
g
n
i
t
a
Rt
i
n
U
e
g
a
t
l
o
V
e
s
a
B
-
o
t
-
r
o
t
c
e
ll
o
CV
O
B
C
0
3V
e
g
a
t
l
o
V
r
e
t
i
m
E
-
o
t
-
r
o
t
c
e
ll
o
CV
O
E
C
0
2V
e
g
a
t
l
o
V
e
s
a
B
-
o
t
-
r
e
t
i
m
EV
O
B
E
3V
t
n
e
r
u
C
r
o
t
c
e
ll
o
CIC
0
3A
m
t
n
e
r
u
C
e
s
a
BIB
0
1A
m
n
o
i
t
a
p
i
s
i
D
r
o
t
c
e
ll
o
CPC
0
5
2W
m
e
r
u
t
a
r
e
p
m
e
T
n
o
i
t
c
n
u
Jj
T
0
5
1
e
r
u
t
a
r
e
p
m
e
T
e
g
a
r
o
t
Sg
t
s
T
0
5
1
+
o
t
5
–
r
e
t
e
m
a
r
a
Pl
o
b
m
y
Ss
n
o
i
t
i
d
n
o
C
s
g
n
i
t
a
R
t
i
n
U
n
i
mp
y
tx
a
m
t
n
e
r
u
C
f
o
t
u
C
r
o
t
c
e
ll
o
CI
O
B
C
V B
C
I
,
V
0
2
=
E 0
=0
.
1A
t
n
e
r
u
C
f
o
t
u
C
r
e
t
i
m
EI
O
B
E
V B
E
I
,
V
2
=
C 0
=0
1A
n
i
a
G
t
n
e
r
u
C
D
h E
F
V E
C
I
,
V
0
1
=
C
A
m
5
=
*
0
4*
0
2
t
c
u
d
o
r
P
h
t
d
i
w
d
n
a
B
-
n
i
a
GfT
V E
C
I
,
V
0
1
=
C
A
m
5
=
4
.
12
.
2z
H
G
e
c
n
a
t
i
c
a
p
a
C
t
u
p
t
u
OC b
o
V B
C
z
H
M
1
=
f
,
V
0
1
=
7
.
01
.
1F
p
e
c
n
a
t
i
c
a
p
a
C
r
e
f
s
n
a
r
T
e
s
r
e
v
e
RC e
r
V B
C
z
H
M
1
=
f
,
V
0
1
=
5
.
0F
p