
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.
PNP/NPN Epitaxial Planar Type Silicon Transistors
High-Current Switching Applications
Ordering number:EN2266A
2SB1270/2SD1906
Applications
· Suitable for relay drivers, high-speed inverters,
converters, and other general high-current switching
applications.
Features
· Suitable for sets whose height is restricted.
· Low collector to emitter saturation voltage.
· Large current capacity.
( ) : 2SB1270
Specifications
Absolute Maximum Ratings at Ta = 25˚C
retemaraPlobmySsnoitidnoCsgnitaRtinU
egatloVesaB-ot-rotcelloCV
egatloVrettimE-ot-rotcelloCV
egatloVesaB-ot-rettimEV
tnerruCrotcelloCI
)esluP(tnerruCrotcelloCI
noitapissiDrotcelloCP
erutarepmeTnoitcnuJjT 051
erutarepmeTegarotSgtsT 051+ot55–
OBC
OEC
OBE
C
PC
C
Tc=25˚C
Package Dimensions
unit:mm
2049B
[2SB1270/2SD1906]
E : Emitter
C : Collector
B : Base
SANY O : T O-220MF
09)–(V
08)–(V
6)–(V
5)–(A
9)–(A
56.1W
03W
˚C
˚C
Electrical Characteristics at Ta = 25˚C
retemaraPlobmySsnoitidnoC
tnerruCffotuCrotcelloCI
tnerruCffotuCrettimEI
niaGtnerruCCD
tcudorPhtdiwdnaB-niaGf
egatloVnoitarutaSrettimE-ot-rotcelloCV
* : The 2SB1270/2SD1906 are classified by 1A hFE as follows :
hEF1VECI,V2)–(=
hEF2VECI,V2)–(=
V
OBC
OBE
T
BC
V
BE
V
EC
I
)tas(EC
C
I,V08)–(=
0=1.0)–(Am
E
I,V4)–(=
0=1.0)–(Am
C
A1)–(=
C
A3)–(=
C
I,V5)–(=
A1)–(=
C
I,A3)–(=
A3.0)–(=
B
041Q07002R001082S041
O1598HA (KT)/D251MH/4097TA, TS No.2266–1/4
nimpytxam
03
sgnitaR
*07*082
02zHM
tinU
4.0V
)5.0–(V

2SB1270/2SD1906
retemaraPlobmySsnoitidnoC
egatloVnwodkaerBesaB-ot-rotcelloCV
egatloVnwodkaerBrettimE-ot-rotcelloCV
egatloVnwodkaerBesaB-ot-rettimEV
emiTNO-nruTt
emiTegarotSt
emiTllaFt
I
OBC)RB(
C
I
OEC)RB(
C
I
OBE)RB(
E
no
gts
f
I,Am1)–(=
0=09)–(V
E
R,Am1)–(=
=∞ 08)–(V
EB
I,Am1)–(=
0=6)–(V
C
.tiucrictsetdeificepseeS
.tiucrictsetdeificepseeS
.tiucrictsetdeificepseeS
Switching Time Test Circuit
sgnitaR
nimpytxam
)2.0(sµ
1.0sµ
)7.0(sµ
2.1sµ
)2.0(sµ
4.0sµ
tinU
No.2266–2/4

2SB1270/2SD1906
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 October, 1998. Specifications and information herein are subject
to change without notice.
PS No.2266–4/4