
Ordering number:EN3200
PNP/NPN Epitaxial Planar Silicon Transistors
2SA1685/2SC4443
High-Speed Switching Applications
Features
· Fast switching speed.
· High gain-bandwidth product.
· Low saturation voltage.
( ) : 2SA1685
Specifications
Absolute Maximum Ratings at Ta = 25˚C
retemaraPlobmySsnoitidnoCsgnitaRtinU
egatloVesaB-ot-rotcelloCV
egatloVrettimE-ot-rotcelloCV
egatloVesaB-ot-rettimEV
tnerruCrotcelloCI
)esluP(tnerruCrotcelloCI
tnerruCesaBI
noitapissiDrotcelloCP
erutarepmeTnoitcnuJjT 051
erutarepmeTegarotSgtsT 051+ot55–
C
PC
B
C
Package Dimensions
unit:mm
2059
[2SA1685/2SC4443]
B : Base
C : Collector
E : Emitter
SANYO : MCP
OBC
OEC
OBE
04)–(V
02)–(V
5)–(V
051)–(Am
003)–(Am
03)–(Am
051Wm
˚C
˚C
Electrical Characteristics at Ta = 25˚C
retemaraPlobmySsnoitidnoC
tnerruCffotuCrotcelloCI
tnerruCffotuCrettimEI
niaGtnerruCCDh
tcudorPhtdiwdnaB-niaGf
V
OBC
OBE
EF
T
BC
V
BE
V
EC
V
EC
I,V03)–(=
0=1.0)–(Aµ
E
I,V4)–(=
0=1.0)–(Aµ
C
I,V1)–(=
C
Am01)–(=*06*072
I,V01)–(=
C
Am01)–(=
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.
nimpytxam
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquaters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
82098HA (KT)/7219YT, TS No.3200-1/5
sgnitaR
007zHM
)004(zHM
Continued on next page.
tinU

2SA1685/2SC4443
Continued from preceding page.
retemaraPlobmySsnoitidnoC
ecnaticapaCtuptuOC
egatloVnoitarutaSrettimE-ot-rotcelloCV
egatloVnoitarutaSrettimE-ot-esaBV
egatloVnwodkaerBesaB-ot-rotcelloCV
egatloVnwodkaerBrettimE-ot-rotcelloCV
egatoVnwodkaerBesaB-ot-rettimEV
emiTyaleDt
emiTesiRt
emiTegarotSt
emiTllaFt
* : 2SA1685/2SC4443 are classified by 10mA hFE as follos :
2SA1685
2SC4443
021306081409
0213060814090725531
Marking 2SA1685 : YL
2SC4443 : GT
hFE rank 2SA1685 : 3, 4
2SC4443 : 3, 4, 5
V
bo
d
r
gts
f
BC
I
)tas(EC
C
I
)tas(EB
C
I
OBC)RB(
C
I
OEC)RB(
C
I
OBE)RB(
E
zHM1=f,V01)–(=
I,Am01)–(=
Am1)–(=
B
I,Am01)–(=
Am1)–(=
B
I,Aµ01)–(=
0=04)–(V
E
R,Am1)–(=
=∞ 02)–(V
EB
I,Aµ01)–(=
0=5)–(V
C
tiucriCtseTdeificepseeS11)41(02sn
tiucriCtseTdeificepseeS01)11(02sn
tiucriCtseTdeificepseeS07)08(081sn
tiucriCtseTdeificepseeS51)61(52sn
Switching Time T est Circuit
sgnitaR
nimpytxam
)9.2(Fp
6.2Fp
80.02.0)–(V
)70.0–(V
27.00.1)–(V
)57.0–(V
tinU
Unit (resistance : Ω, capacitance : F)
No.3200-2/5

2SA1685/2SC4443
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 and all SANYO products described or contained herein fall under strategic
products (including services) controlled under the Foreign Exchange and Foreign Trade Control Law of
Japan, such products must not be exported without obtaining export license from the Ministry of
International Trade and Industry 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 August, 1998. Specifications and information herein are subject to
change without notice.
PS No.3200-5/5