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Ordering number:1786A
PNP/NPN Epitaxial Planar Silicon Transistors
2SB1120
High-Current Driver Applications
Applications
· Strobes, voltage regulators, relay drivers, lamp
drivers.
Features
· Low collector-to-emitter saturation voltage :
VCE(sat)max=–0.45V.
· Large current capacity : IC=–2.5A, ICP=–5A.
· Very small size making it easy to provide high-
density, small-sized hybrid IC’s.
Package Dimensions
unit:mm
2038
[2SB1120]
E : Emitter
C : Collector
B : Base
Specifications
Absolute Maximum Ratings at Ta = 25˚C
Parameter
Collector-to-Base Voltage
Collector-to-Emitter Voltage
Emitter-to-Base Voltage
Collector Current
Collector Current (Pulse)
Collector Dissipation
Symbol
VCBO
VCEO
VEBO
IC
ICP
PC
Junction Temperature
Storage Temperature
Tj
Tstg
Electrical Characteristics at Ta = 25˚C
Conditions
Mounted on ceramic board (250mm2×0.8mm)
Parameter
Symbol
Conditions
Collector Cutoff Current
Emitter Cutoff Current
DC Current Gain
Gain-Bandwidth Product
ICBO
IEBO
hFE1
hFE2
fT
VCB=–16V, IE=0
VEB=–4V, IC=0
VCE=–2V, IC=–500mA
VCE=–2V, IC=–3A
VCE=–10V, IC=–50mA
* ; The 2SB1120 is classified by 500mA hFE as follows :
100 E 200 160 F 320 280 G 560
Marking BC
hFE rank : E, F, G
SANYO : PCP
(Bottom view)
Ratings
–20
–10
–7
–2.5
–5
500
1.3
150
–55 to +150
Unit
V
V
V
A
A
mW
W
˚C
˚C
Ratings
min typ
100*
70
250
max
–100
–100
560*
Unit
nA
nA
MHz
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.
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquaters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
92098HA (KT)/4107KI/2135MW, TS No.1786–1/3

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Parameter
Collector-to-Emitter Saturation Voltage
Collector-to-Base Breakdown Voltage
Collector-to-Emitter Breakdown Voltage
Emitter-to-Base Breakdown Voltage
Output Capacitance
2SB1120
Symbol
Conditions
VCE(sat)
V(BR)CBO
V(BR)CEO
V(BR)EBO
Cob
IC=–1.5A, IB=(–)0.15A
IC=–10µA, IE=0
IC=–1mA, RBE=
IE=–10µA, IC=0
VCB=–10V, f=1MHz
Ratings
min typ
–0.25
–20
–10
–7
70
max
–0.45
Unit
V
V
V
V
pF
No.1786–2/3

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2SB1120
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 September, 1998. Specifications and information herein are
subject to change without notice.
PS No.1786–3/3