EMT18 / UMT18N / IMT18
Transistors
Rev.A 1/3
General purpose transistors
(dual transistors)
EMT18 / UMT18N / IMT18
Features
1) Two 2SA2018 chips in a EMT package.
2) Mounting possible with EMT3 or UMT3 or SMT3
automatic mounting machines.
3) Transistor elements are independent, eliminating
interference.
Structure
Epitaxial planar type
NPN silicon transistor
The following characteristics apply to both Tr
1
and Tr
2
.
Equivalent circuit
(3)
(4)
(2)
(5)
(1)
(6)
Tr
2
Tr
2
Tr
1
Tr
1
EMT18 / UMT18N
(4)
(3)
(5)
(2)
(6)
(1)
IMT18
External dimensions (Unit : mm)
ROHM :
EMT6
Each lead has same dimensions
Abbreviated symbol :
T18
EMT18
ROHM : SMT6
EIAJ : SC-74
JEDEC : SOT-457
Each lead has same dimensions
Abbreviated symbol :
T18
IMT18
ROHM : UMT6
EIAJ : SC-88
Each lead has same dimensions
Abbreviated symbol :
T18
UMT18N
( 6
)
2.0
1.3
0.9
0.15
0.7
0.1Min.
2.1
0.65
0.2
1.25
( 1
)
0.65
( 4
)
( 3
)
( 2
)
( 5
)
( 6
)
( 5
)
( 4
)
0.3Min.
0.15
0.3
1.1
0.8
( 3
)
2.8
1.6
1.9
2.9
0.95
( 2
)
0.95
( 1
)
0.22
1.2
1.6
(1)
(2)
(5)
(3)
(6)
(4)
0.13
0.5
0.5
0.5
1.0
1.6
Absolute maximum ratings (Ta=25
C)
Collector-base voltage
Collector-emitter voltage
Power dissipation
Storage temperature
Emitter-base voltage
Collector current
Junction temperature
1 Single pulse P
W
=
1ms
2 120mW per element must not be exceeded.
3 200mW per element must not be exceeded.
Parameter
Symbol
V
CBO
V
CEO
P
C
Tstg
Limits
-
15
-
12
150 (TOTAL)
-
55 to
+
150
Unit
V
V
mW
C
C
V
EBO
I
C
-
6
-
500
1
3
2
V
mA
I
CP
1.0
A
Tj
150
SMT6 300 (TOTAL)
EMT6
UMT6
EMT18 / UMT18N / IMT18
Transistors
Rev.A
2/3
Electrical characteristics (Ta=25
C)
Parameter
Collector-base breakdown voltage
Symbol
Min.
Typ. Max.
Unit
Conditions
BV
CBO
-
15
-
-
V
I
C
= -
10
A
I
C
= -
1mA
I
E
= -
10
A
V
CB
= -
15V
V
CE
= -
2V, I
E
=
10mA, f
=
100MHz
V
CB
= -
10V, I
E
=
0A, f
=
1MHz
Collector-emitter breakdown voltage
BV
CEO
-
12
-
-
V
Emitter-base breakdown voltage
BV
EBO
-
6
-
-
V
Collector cutoff current
I
CBO
-
-
-
0.1
A
V
CB
= -
6V
Emitter cutoff current
I
EBO
-
-
-
0.1
A
I
C
/ I
B
= -
200mA /
-
10mA
Collector-emitter saturation voltage
V
CE (sat)
-
-
100
-
250
mV
V
CE
= -
2V, I
C
= -
10mA
DC current transfer ratio
h
FE
270
-
680
-
Transition frequency
f
T
-
260
-
MHz
Output capacitance
Cob
-
6.5
-
pF
Packaging specifications and h
FE
Package name
Code
Taping
Basic ordering unit (pieces)
EMT18
UMT18N
IMT18
T2R
8000
TR
3000
-
-
-
-
T110
3000
-
-
Type
Electrical characteristic curves
1
2
5
10
20
50
100
200
500
1000
0
0.5
1.0
1.5
BASE TO EMITTER VOLTAGE : V
BE
(V)
COLLECTOR CURRENT : I
C
(mA)
V
CE
=
2V
Fig.1 Grounded Emitter Propagation
Characteristics
Ta
= -
40
C
Ta
=
25
C
Ta
=
125
C
1
2
5
10
20
50
100
200
500
1000
1
2
5
10 20
50 100 200
500 1000
COLLECTOR CURRENT : I
C
(mA)
DC CURRENT GAIN : h
FE
V
CE
=
2V
Fig.2 DC Current Gain vs.
Collector Current
Ta
= -
40
C
Ta
=
25
C
Ta
=
125
C
1
2
5
10
20
50
100
200
500
1000
1
2
5
10 20
50 100 200
500 1000
COLLECTOR CURRENT : I
C
(mA)
I
C
/ I
B
=
20
Ta
= -
40
C
Ta
=
25
C
Ta
=
125
C
COLLECTOR SATURATION
VOLTAGE : V
CE (sat)
(V)
Fig.3 Collector-Emitter Saturation
Voltage vs.
Collector Current
(
)
EMT18 / UMT18N / IMT18
Transistors
Rev.A
3/3
1
2
5
10
20
50
100
200
500
1000
1
2
5
10 20
50 100 200
500 1000
COLLECTOR CURRENT : I
C
(mA)
Ta
=
25
C
I
C
/ I
B
=
50
I
C
/ I
B
=
20
I
C
/ I
B
=
10
COLLECTOR SATURATION
VOLTAGE : V
CE (sat)
(mV)
Fig.4 Collector-Emitter Saturation
Voltage vs.
Collector Current
(
)
1
2
5
10
20
50
100
200
500
1000
1
2
5
10 20
50 100 200
500 1000
COLLECTOR CURRENT : I
C
(mA)
I
C
/ I
B
=
20
Ta
=
125
C
Ta
=
25
C
Ta
= -
40
C
BASER SATURATION VOLTAGE : V
BE (sat)
(mV)
Fig.5 Base-Emitter Saturation
Voltage vs.Collecter Current
1
2
5
10
20
50
100
200
500
1000
1
2
5
10 20
50 100 200
500 1000
EMITTER CURRENT : I
C
(mA)
TRANSITION FREQUENCY : f
T
(MHz)
V
CE
=
2V
Ta
=
25
C
Fig.6 Gain Bandwidth Product vs.
Emitter Current
1
2
5
10
20
50
100
200
500
1000
0.1 0.2
0.5
1
2
5
10 20
50 100
EMITTER TO BASE VOLTAGE : V
EB
(V)
I
E
=
0A
f
=
1MHz
Ta
=
25
C
Cib
Cob
Fig.7 Collector Output Capacitance vs.
Collector-Base Voltage
Emitter Input Capacitance vs.
Emitter-Base Voltage
EMITTER INPUT CAPACITANCE :
Cib (
pF
)
COLLECTOR OUTPUT CAPACITANCE :
Cob (
pF
)
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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