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SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquaters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
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:EN1944B
2SC3771
Applications
· UHF/VHF frequency converters, local oscillators, HF
amplifiers.
Features
· High power gain : PG=10dB typ (f=0.9GHz).
· Small noise figure : NF=3.5dB typ (f=0.9GHz).
· High cutoff frequency : fT=2.2GHz typ.
Specifications
Absolute Maximum Ratings at Ta = 25˚C
Electrical Characteristics at Ta = 25˚C
* : The 2SC3771 is classified by 5mA hFE as follows :
(Note) Marking : KY
hFE rank : 2, 3, 4
Package Dimensions
unit:mm
2018A
[2SC3771]
PG=16dB typ (f=0.4GHz).
retemaraPlobmySsnoitidnoCsgnitaRtinU
egatloVesaB-ot-rotcelloCV
egatloVrettimE-ot-rotcelloCV
egatloVesaB-ot-rettimEV
tnerruCrotcelloCI
tnerruCesaBI
noitapissiDrotcelloCP
erutarepmeTnoitcnuJjT 051
erutarepmeTegarotSgtsT 051+ot55–
retemaraPlobmySsnoitidnoC
tnerruCffotuCrotcelloCI
tnerruCffotuCrettimEI
niaGtnerruCCD
tcudorPhtdiwdnaB-niaGf
ecnaticapaCtuptuOC
ecnaticapaCrefsnarTesreveRC
OBC
OEC
OBE
C
B
C
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V
OBC
V
OBE
h
V
EF
V
T
V
bo
V
er
I,V02=
BC
BE
EC
EC
BC
BC
0=0.1Aµ
E
I,V2=
0=01Aµ
C
I,V01=
Am5=
C
I,V01=
Am5=
C
zHM1=f,V01=
zHM1=f,V01=
082040213060024001
C : Collector
B : Base
E : Emitter
SANYO : CP
03V
02V
3V
03Am
01Am
052Wm
sgnitaR
*04*002
4.12.2zHG
7.01.1Fp
5.0Fp
˚C
˚C
tinU
N3098HA (KT)/5318MO/5137KI/O115KI, TS No.1944–1/5
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2SC3771
niaGrewoPGPVECI,V01=
erugiFesioNFNVECI,V01=
PG, NF Test Circuit
retemaraPlobmySsnoitidnoC
V
C
I,V01=
EC
C
C
sgnitaR
nimpytxam
zHG4.0=f,Am01=
zHG9.0=f,Am01=
,zHG9.0=f,Am3=
.tiucriCtseTdeificepseeS
61Bd
01Bd
5.3Bd
tinU
1C
2C
3C
4C
5C
1L
2L
3L
HC
zHM009
Fp5~
Fp01~
Fp01~
Fp01~
Fp01~
W ≈ l,mm5.1 ≈ mm52
enilpirtS
W ≈ l,mm4 ≈ mm52
enilpirtS
5.0 φ l, ≈ mm04
erocdaeb+t2
No.1944–2/5
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2SC3771
No.1944–3/5
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2SC3771
No.1944–4/5
Page 5
2SC3771
Specifications of any and all SANYO products described or contained herein stipulate the performance,
characteristics, and functions of the described products in the independent state, and are not guarantees
of the performance, characteristics, and functions of the described products as mounted in the customer's
products or equipment. To verify symptoms and states that cannot be evaluated in an independent device,
the customer should always evaluate and test devices mounted in the customer's products or equipment.
SANYO Electric Co., Ltd. strives to supply high-quality high-reliability products. However, any and all
semiconductor products fail with some probability. It is possible that these probabilistic failures could
give rise to accidents or events that could endanger human lives, that could give rise to smoke or fire,
or that could cause damage to other property. When designing equipment, adopt safety measures so
that these kinds of accidents or events cannot occur. Such measures include but are not limited to protective
circuits and error prevention circuits for safe design, redundant design, and structural design.
In the event that any or all SANYO products(including technical data,services) described or
contained herein are controlled under any of applicable local export control laws and regulations,
such products must not be exported without obtaining the export license from the authorities
concerned in accordance with the above law.
No part of this publication may be reproduced or transmitted in any form or by any means, electronic or
mechanical, including photocopying and recording, or any information storage or retrieval system,
or otherwise, without the prior written permission of SANYO Electric Co. , Ltd.
Any and all information described or contained herein are subject to change without notice due to
product/technology improvement, etc. When designing equipment, refer to the "Delivery Specification"
for the SANYO product that you intend to use.
Information (including circuit diagrams and circuit parameters) herein is for example only ; it is not
guaranteed for volume production. SANYO believes information herein is accurate and reliable, but
no guarantees are made or implied regarding its use or any infringements of intellectual property rights
or other rights of third parties.
This catalog provides information as of November, 1998. Specifications and information herein are subject
to change without notice.
PS No.1944–5/5
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