EMA3 / UMA3N / FMA3A
ansistors
Tr
Rev.A
1/2
Emitter common
(dual digital transistors)
EMA3 / UMA3N / FMA3A
Features
1) Two DTA143Ts in a EMT or UMT or SMT package.
2) Mounting cost and area can be cut in half.
Structure
Epitaxial planar type PNP silicon transistor (Built-in
resistor type.)
The following characteristics apply to both DTr
1
and
DTr
2
.
Equivalent circuit
EMA3 / UMA3N
R
1
=4.7k
FMA3A
R
1
DTr
1
DTr
2
R
1
(3)
(2)
(1)
(4)
(5)
R
1
=4.7k
R
1
R
1
DTr
1
DTr
2
(3)
(4)
(5)
(2)
(1)
External dimensions (Unit : mm)
ROHM : EMT5
EMA3
Each lead has same dimensions
ROHM : UMT5
EIAJ : SC-88A
UMA3N
Each lead has same dimensions
0.9
0.15
0to0.1
0.1Min.
0.7
2.1
1.3
0.65
( 4
)
( 1
)
(6)
0.2
1.25
( 2
)
0.65
( 3
)
2.0
Abbreviated symbol : A3
Abbreviated symbol : A3
Abbreviated symbol : A3
Each lead has same dimensions
0to0.1
1.1
0.8
0.3to0.6
0.15
1.6
2.8
2.9
0.95
1.9
( 4
)
( 5
)
( 1
)
0.3
( 3
)
0.95
( 2
)
ROHM : SMT5
EIAJ : SC-74A
FMA3A
0.22
1.2
1.6
(1)
(2)
(3)
(5)
(4)
0.13
0.5
0.5
0.5
1.0
1.6
EMA3 / UMA3N / FMA3A
ansistors
Tr
Rev.A
2/2
Absolute maximum ratings (Ta=25
C)
Parameter
V
CBO
V
CEO
V
EBO
I
C
P
C
Tj
Tstg
-
50
V
V
V
mA
2
mW
1
C
C
-
50
-
5
-
100
300 (TOTAL)
150 (TOTAL)
150
-
55 to
+
150
Symbol
Limits
Unit
EMA3, UMA3N
FMA3A
Collector-base voltage
Collector-emitter voltage
Emitter-base voltage
Collector current
Collector power
dissipation
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
Symbol
BV
CBO
BV
CEO
BV
EBO
I
CBO
h
FE
V
CE (sat)
R
1
Min.
-
50
-
50
-
5
-
100
-
3.29
-
-
-
-
250
-
4.7
-
-
-
-
0.5
600
-
0.3
6.11
V
I
C
=
-
50
A
I
C
=
-
1mA
I
E
=
-
50
A
V
CB
=
-
50V
V
CE
/I
C
=
-
5V/
-
1mA
I
C
/I
B
=
-
5mA/
-
0.25mA
-
V
V
A
I
EBO
-
-
-
0.5
V
EB
=
-
4V
A
-
V
k
Typ.
Max.
Unit
Conditions
f
T
-
250
-
V
CE
=
-
10V, I
E
=5mA, f=100MHz
MHz
Collector-base breakdown voltage
Collector-emitter breakdown voltage
Emitter-base breakdown voltage
Collector cutoff current
DC current transfer ratio
Collector-emitter saturation voltage
Input resistance
Emitter cutoff current
Transition frequency
Transition frequency of the device
Packaging specifications
Package
Code
TR
T148
3000
3000
Taping
Basic ordering
unit (pieces)
UMA3N
T2R
8000
EMA3
FMA3A
Type
Electrical characteristic curves
V
CE
=
-
5V
-
100
-
1m
-
10m
-
200
-
2m
-
20m
-
500
-
5m
-
50m
-
100m
1k
500
200
100
50
20
10
5
2
1
DC CURRENT GAIN : h
FE
COLLECTOR CURRENT : I
C
(A)
Fig.1 DC current gain vs. collector
current
-
40C
25C
Ta=100C
l
C
/l
B
=20
-
500m
-
200m
-
100m
-
50m
-
20m
-
10m
-
5m
-
2m
-
1m
-
1
-
100
-
1m
-
10m
-
200
-
2m
-
20m
-
500
-
5m
-
50m
-
100m
COLLECTOR SATURATION VOLTAGE : V
CE (sat)
(V)
COLLECTOR CURRENT : I
C
(A)
Fig.2 Collector-emitter saturation
voltage vs. collector current
Ta=100C
25C
-
40C
Appendix
Appendix1-Rev1.1
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.
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.
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.
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