Tr
ansistors
Emitter common
(dual digital transistors)
EMA3 / UMA3N / FMA3A
zFeatures
1) Two DT A143Ts in a EMT or UMT or SMT package.
2) Mounting cost and area can be cut in half.
zStructure
Epitaxial planar type PNP silicon transistor (Built-in
resistor type.)
The following characteristics apply to both DTr
DTr
2.
1 and
zEquivalent circuit
EMA3 / UMA3N
R1=4.7kΩ
(3) (2) (1)
R
1
DTr
2
(4)
FMA3A
R1=4.7kΩ
R
1
DTr
1
(5)
R
DTr
2
(3) (4) (5)
1
(2)
R
1
DTr
1
(1)
zExternal dimensions (Unit : mm)
EMA3
ROHM : EMT5
UMA3N
ROHM : UMT5
EIAJ : SC-88A
FMA3A
ROHM : SMT5
EIAJ : SC-74A
EMA3 / UMA3N / FMA3A
(3)
(4)
0.5
1.0
1.6
(2)
0.22
0.13
Abbreviated symbol : A3
0.2
0.15
0.1Min.
Abbreviated symbol : A3
0.3
0.15
0.3to0.6
Abbreviated symbol : A3
0.5
(1)
(5)
1.2
1.6
0.5
Each lead has same dimensions
)
)
3
4
(
(
)
0.65
2
(
)
0.65
1
(6)
(
1.25
2.1
0.7
0to0.1
Each lead has same dimensions
)
)
3
2
(
(
0.95
1.9
)
4
(
0.95
)
)
1
5
(
(
1.6
2.8
0.8
0to0.1
Each lead has same dimensions
2.0
1.3
0.9
2.9
1.1
Rev.A 1/2
Tr
ansistors
zAbsolute maximum ratings (Ta=25°C)
Parameter
Collector-base voltage
Collector-emitter voltage
Emitter-base voltage
Collector current
Collector power
dissipation
EMA3, UMA3N
FMA3A
Junction temperature
Storage temperature
1 120mW per element must not be exceeded.
∗
2 200mW per element must not be exceeded.
∗
Symbol Limits Unit
CBO
V
V
CEO
V
EBO
I
C
P
C
Tj
Tstg
zElectrical characteristics (Ta=25°C)
Parameter Symbol
CBO
Collector-base breakdown voltage
Collector-emitter breakdown voltage
Emitter-base breakdown voltage
Collector cutoff current
DC current transfer ratio
Emitter cutoff current
Collector-emitter saturation voltage
Transition frequency
Input resistance
Transition frequency of the device
∗
BV
BVCEO
BVEBO
ICBO
hFE
EBO −−−0.5 VEB
I
VCE (sat)
fT
R1
zPackaging specifications
Type
EMA3
UMA3N
FMA3A
Package
Code TR T148
Basic ordering
unit (pieces)
T2R
8000
Taping
3000 3000
zElectrical characteristic curves
1k
500
FE
200
100
DC CURRENT GAIN : h
Ta=100˚C
50
20
10
5
2
1
−100µ −1m
−40˚C
−200µ −2m
−500µ −5m
COLLECTOR CURRENT : I
25˚C
−10m
−20m
Fig.1 DC current gain vs. collector
current
VCE=−5V
−50m −100m
C
(A)
−50 V
−50
−5
−100
150 (TOTAL)
300 (TOTAL)
150
−55 to +150
V
V
mA
mW
˚C
˚C
1
∗
2
∗
Typ. Max. Unit Conditions
Min.
C
=
−50
−
−50
−
−5
−
−
−
100
250
−
−
− 250 −
3.29
4.7
−
−
−
−0.5
600
−0.3
6.11
µA
MHz
kΩ
−50µA
VI
C
=
−1mA
V
I
E
=
−50µA
I
V
V
CB
−
CE/IC
V
V
I
C/IB
V
CE
=
−50V
=
−5V/−1mA
=
−4VµA
=
−5mA/−0.25mA
=
−10V, IE=5mA, f=100MHz
−1
(V)
−500m
CE (sat)
−200m
−100m
−50m
−20m
−10m
−5m
−2m
−1m
−100µ−1m
COLLECTOR SATURATION VOLTAGE : V
Ta=100˚C
25˚C
−40˚C
−200µ−2m
−500µ−5m
COLLECTOR CURRENT : I
Fig.2 Collector-emitter saturation
voltage vs. collector current
−10m
−20m
C
lC/lB=20
−50m−100m
(A)
EMA3 / UMA3N / FMA3A
∗
−
Rev.A 2/2
Appendix
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.
Notes
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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