DTD143TK
Transistors
500mA / 40V Digital transistors
(with built-in resistor)
DTD143TK
Applications
Inverter, Interface, Driver
External dimensions
(Unit : mm)
2.9
0.4
1.1
0.8
Features
1) Built-in bias resistors enable the configuration of an
inverter circuit without connecting external input
resistors (see equivalent circuit).
2) The bias resistors consist of thin-film resistors with
complete isolation to allow negative biasing of the
input. They also have the advantage of almost
completely eliminating parasitic effects.
3) Only the on / off conditions need to be set for
operation, making the device design easy.
(3)
1.6
2.8
(2)
(1)
0.95 0.95
0.15
1.9
0.3Min.
(1) Emitter
(2) Base
(3) Collector
ROHM : SMT3
EIAJ : SC-59
Each lead has same dimensions
Abbreviated symbol: F03
Structure
NPN epitaxial planar silicon transistor
(Resistor built-in type)
Equivalent circuit
Packaging specifications
Package
Packaging type
Code
C
B
SMT3
Taping
T146
3000
R
1
E
Part No.
DTD143TK
Basic ordering
unit (pieces)
B : Base
C : Collector
E : Emitter
R
1
=4.7kΩ
Absolute maximum ratings
(Ta=25°C)
Parameter
Collector-base voltage
Collector-emitter voltage
Emitter-base voltage
Collector current
Collector power dissipation
Junction temperature
Storage temperature
Symbol
V
CBO
V
CEO
V
EBO
I
C
P
C
Tj
Tstg
Limits
50
40
5
500
200
150
−55
to
+150
Unit
V
V
V
mA
mW
C
C
Rev.B
1/2
DTD143TK
Transistors
Electrical characteristics
(Ta=25°C)
Parameter
Collector-base breakdown voltage
Symbol Min.
BV
CBO
50
40
5
−
−
−
100
3.29
−
Typ.
−
−
−
−
−
−
250
4.7
200
Max.
−
−
−
0.5
0.5
0.3
600
6.11
−
Unit
V
V
V
µA
µA
V
−
kΩ
MHz
I
C
=
50µA
I
C
=
1mA
I
E
=
50µA
V
CB
=
50V
V
EB
=
4V
I
C
/I
B
=
50mA/2.5mA
V
CE
=
5V, I
C
=
50mA
−
V
CE
=
10V, I
E
=
−50mA,
f
=
100MHz
Conditions
Collector-emitter breakdown voltage BV
CEO
Emitter-base breakdown voltage
Collector cutoff current
Emitter cutoff current
Collector-emitter saturation voltage
DC current transfer ratio
Input resistance
Transition frequency
BV
EBO
I
CBO
I
EBO
V
CE(sat)
h
FE
R
1
f
T
∗
∗
Characteristics of built-in transistor
Electrical characteristic curves
COLLECTOR SATURATION VOLTAGE : V
CE(sat)
(V)
1k
500
V
CE
=
5V
1
500m
200m
100m
50m
20m
10m
5m
2m
1m
500µ 1m
l
C
/l
B
=20
DC CURRENT GAIN : h
FE
200
100
50
20
10
5
2
1
500
1m
2m
5m 10m 20m 50m100m 200m 500m
Ta=100 C
25 C
−40
C
Ta=100 C
25 C
−40
C
2m
5m 10m 20m 50m 100m 200m 500m
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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