
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 Triple Diffused Planar Silicon Darlington Transistor
Driver Applications
Ordering number:EN2751B
2SD2048
Applications
· Motor drivers, printer hammer drivers, relay drivers,
voltage regulator control.
Features
· Suitable for sets whose height is restricted.
· High DC current gain.
· Large current capacity and wide ASO.
Package Dimensions
unit:mm
2049C
[2SD2048]
20.9
10.2
0.9
11.5
1.6
1.2
4.5
1.3
Specifications
Absolute Maximum Ratings at Ta = 25˚C
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tnerruCrotcelloCI
)esluP(tnerruCrotcelloCI
noitapissiDrotcelloCP
erutarepmeTnoitcnuJjT 051
erutarepmeTegarotSgtsT 051+ot55–
Electrical Characteristics at Ta = 25˚C
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tnerruCffotuCrotcelloCI
tnerruCffotuCrettimEI
niaGtnerruCCD
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egatloVnoitarutaSrettimE-ot-esaBV
tcudorPhtdiwdnaB-niaGf
egatloVnwodkaerBesaB-ot-rotcelloCV
egatloVnwodkaerBrettimE-ot-rotcelloCV
C
PC
C
h
EF
T
0.8
9.4
123
2.55
OBC
OEC
OBE
Tc=25˚C
V
OBC
V
OBE
V
I
)tas(EC
C
I
C
)tas(EB
V
I
OBC)RB(
C
I
OEC)RB(
C
I,V08=
BC
BE
EC
EC
0=1.0Am
E
I,V5=
0=3Am
C
I,V3=
A5.1=
C
I,A5.1=
Am3=
B
I,A5.1=
Am3=
B
I,V5=
A5.1=
C
I,Am5=
0=011V
E
R,Am05=
=∞ 001V
EB
11.0 8.8
2.7
2.55
nimpytxam
00510004
0.4
1 : Base
2 : Collector
3 : Emitter
SANYO : TO-220MF
011V
001V
6V
3A
5A
56.1W
03W
˚C
˚C
sgnitaR
9.05.1V
0.2V
02zHM
tinU
22299TS (KOTO) 8-2645 No.2751–1/4

2SD2048
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emiTNO-nruTt
emiTegarotSt
emiTllaFt
no
gts
f
.tiucrictsetdeificepseeS
.tiucrictsetdeificepseeS
.tiucrictsetdeificepseeS
Switching Time T est Circuit Electrical Connection
sgnitaR
nimpytxam
7.0sµ
0.5sµ
2.1sµ
tinU
–A
C
Collector Current, I
Collector-to-Emitter Voltage, VCE –V
–A
C
Collector Current, I
From top
–A
C
Collector Current, I
Collector-to-Emitter Voltage, VCE –V
FE
DC Current Gain,h
Base-to-Emitter Voltage, VBE – V Collector Current, IC–A
No.2751–2/4

Collector–to–Emitter
Collector Dissipation, PC–W
Collector-to-Emitter Voltage, V
Case Temperature, Tc – °C
CE
–V
Collector Current, IC–A
1ms to 100ms : single pulse
C
Saturation Voltage, V
–mA
CE (sat)
–V
2SD2048
No.2751–3/4
Collector Dissipation, PC–W
Ambient Temperature, Ta – °C
No heat sink
Base–to–Emitter
Saturation Voltage, V
Collector Current, I
C
–mACollector Current, I
BE (sat)
–V

2SD2048
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 February, 1999. Specifications and information herein are subject
to change without notice.
PS No.2751–4/4