EMB3 / UMB3N / IMB3A
Transistors
General purpose (dual digital transistors)
EMB3 / UMB3N / IMB3A
Features
1) Two DTA143T chips in a EMT6 or UMT6 or SMT6
package.
2) Mounting possible with EMT3 or UMT3 or SMT3
automatic mounting machines.
3) Transistor elements are independent, eliminating
interference.
External dimensions
(Unit : mm)
EMB3
1.6
0.5
1.0
0.5 0.5
(6) (5) (4)
1.6
1.2
1pin mark
(1) (2) (3)
0.22
0.13
ROHM : EMT6
Each lead has same dimensions
Abbreviated symbol : B3
Structure
Dual PNP digital transistor
(each with single built in resistor)
The following characteristics apply to both DTr
1
and DTr
2
.
UMB3N
2.0
1.3
0.65
(5)
(6)
(4)
0.9
0.65
0.7
Equivalent circuit
EMB3, UMB3N
(3) (2)
R
1
(1)
1pin mark
(1)
(2)
(3)
1.25
2.1
0.2
IMB3A
(4) (5)
R
1
(6)
0.15
DTr
1
DTr
2
R
1
(5)
DTr
2
R
1
(2)
DTr
1
ROHM : UMT6
EIAJ : SC-88
Each lead has same dimensions
Abbreviated symbol : B3
(4)
(6)
(3)
(1)
IMB3A
2.9
1.9
0.95
0.95
1.1
0.8
R
1
=4.7kΩ
R
1
=4.7kΩ
(4)
(5)
(6)
1.6
2.8
Packaging specifications
Package
Code
Type
EMB3
UMB3N
IMB3N
−
−
−
Basic ordering unit (pieces)
T2R
8000
Taping
TN
3000
−
T110
3000
−
−
1pin mark
(3)
(2)
(1)
0.3
0.15
ROHM : SMT6
EIAJ : SC-74
Each lead has same dimensions
Abbreviated symbol : B3
Rev.B
0.3Min.
0.1Min.
1/2
EMB3 / UMB3N / IMB3A
Transistors
Absolute maximum ratings
(Ta = 25°C)
Parameter
Collector-base voltage
Collector-emitter voltage
Emitter-base voltage
Collector current
Collector power
dissipation
EMB3,UMB3N
IMB3A
Tj
Tstg
Symbol
V
CBO
V
CEO
V
EBO
I
C
P
C
Limits
−50
−50
−5
−100
150 (TOTAL)
300 (TOTAL)
150
−55
to
+150
Unit
V
V
V
mA
mW
°C
°C
∗
1
∗
2
Junction temperature
Storage temperature
∗
1 120mW per element must not be exceeded.
∗
2 200mW per element must not be exceeded.
Electrical characteristics
(Ta = 25°C)
Parameter
Collector-base breakdown voltage
Collector-emitter breakdown voltage
Emitter-base breakdown voltage
Collector cutoff current
Emitter cutoff current
Collector-emitter saturation voltage
DC current transfer ratio
Transition frequency
Input resistance
Symbol
BV
CBO
BV
CEO
BV
EBO
I
CBO
I
EBO
V
CE (sat)
h
FE
f
T
R
1
Min.
−50
−50
−5
−
−
−
100
−
3.29
Typ.
−
−
−
−
−
−
250
250
4.7
Max.
−
−
−
−0.5
−0.5
−0.3
600
−
6.11
Unit
V
V
V
µA
µA
V
−
MHz
kΩ
I
C
=−50µA
I
C
=−1mA
I
E
=−50µA
V
CB
=−50V
V
EB
=−4V
I
C
/I
B
=−5mA/−2.5mA
V
CE
=−5V, I
C
=−1mA
V
CE
=10mA, I
E
=−5mA, f=100MHz
−
Conditions
∗
∗
Transition frequency of the device
Electrical characteristic curves
1k
COLLECTOR SATURATION VOLTAGE : V
CE(sat)
(V)
V
CE
=−5V
500
−1
l
C
/l
B
=20
Ta=100°C
25°C
−40°C
−500m
−200m
DC CURRENT GAIN : h
FE
200
100
50
Ta=100°C
25°C
−40°C
−100m
−50m
−20m
−10m
−5m
−2m
−1m
−100µ −200µ −500µ −1m
−2m
−5m −10m −20m −50m −100m
20
10
5
2
1
−100µ −200µ −500µ −1m
−2m
−5m −10m −20m −50m −100m
COLLECTOR CURRENT : I
C
(A)
COLLECTOR CURRENT : I
C
(A)
Fig.1 DC current gain vs. collector
current
Fig.2 Collector-emitter saturation
voltage vs. collector current
Rev.B
2/2
Appendix
Notes
No technical content pages of this document may be reproduced in any form or transmitted by any
means without prior permission of ROHM CO.,LTD.
The contents described herein are subject to change without notice. The specifications for the
product described in this document are for reference only. Upon actual use, therefore, please request
that specifications to be separately delivered.
Application circuit diagrams and circuit constants contained herein are shown as examples of standard
use and operation. Please pay careful attention to the peripheral conditions when designing circuits
and deciding upon circuit constants in the set.
Any data, including, but not limited to application circuit diagrams information, described herein
are intended only as illustrations of such devices and not as the specifications for such devices. ROHM
CO.,LTD. disclaims any warranty that any use of such devices shall be free from infringement of any
third party's intellectual property rights or other proprietary rights, and further, assumes no liability of
whatsoever nature in the event of any such infringement, or arising from or connected with or related
to the use of such devices.
Upon the sale of any such devices, other than for buyer's right to use such devices itself, resell or
otherwise dispose of the same, no express or implied right or license to practice or commercially
exploit any intellectual property rights or other proprietary rights owned or controlled by
ROHM CO., LTD. is granted to any such buyer.
Products listed in this document are no antiradiation design.
The products listed in this document are designed to be used with ordinary electronic equipment or devices
(such as audio visual equipment, office-automation equipment, communications devices, electrical
appliances and electronic toys).
Should you intend to use these products with equipment or devices which require an extremely high level of
reliability and the malfunction of with would directly endanger human life (such as medical instruments,
transportation equipment, aerospace machinery, nuclear-reactor controllers, fuel controllers and other
safety devices), please be sure to consult with our sales representative in advance.
About Export Control Order in Japan
Products described herein are the objects of controlled goods in Annex 1 (Item 16) of Export Trade Control
Order in Japan.
In case of export from Japan, please confirm if it applies to "objective" criteria or an "informed" (by MITI clause)
on the basis of "catch all controls for Non-Proliferation of Weapons of Mass Destruction.
Appendix1-Rev1.1
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