500mA / 50V Digital transistors
(with built-in resistors)
DTD123EK
Applications
Inverter, Interface, Driver
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.
ROHM : SMT3
EIAJ : SC-59
Dimensions
(Unit : mm)
DTD123EK
2.9
0.4
(3)
1.1
0.8
(2)
(1)
1.6
2.8
0.95 0.95
0.15
1.9
(1) GND
(2) IN
(3) OUT
Each lead has same dimension
Structure
NPN epitaxial planar silicon transistor
(Resistor built-in type)
Packaging specifications
Package
Packaging type
Code
Part No.
DTD123EK
IN
Abbreviated symbol: F22
Inner circuit
SMT3
Taping
T146
3000
GND
IN
R
2
R
1
OUT
Basic ordering unit (pieces)
OUT
GND
Absolute maximum ratings
(Ta=25C)
Parameter
Supply voltage
Input voltage
Output current
Power dissipation
Junction temperature
Storage temperature
Symbol
V
CC
V
IN
I
C
Pd
Tj
Tstg
Limits
DTD123EK
50
−10
to
+12
500
200
150
−55
to
+150
Unit
V
V
mA
mW
C
C
R
1
=R
2
=2.2kΩ
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2009 ROHM Co., Ltd. All rights reserved.
1/2
2009.06 - Rev.C
0.3Min.
Notice
Notes
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which can be obtained from ROHM upon request.
Examples of application circuits, circuit constants and any other information contained herein
illustrate the standard usage and operations of the Products. The peripheral conditions must
be taken into account when designing circuits for mass production.
Great care was taken in ensuring the accuracy of the information specified in this document.
However, should you incur any damage arising from any inaccuracy or misprint of such
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The technical information specified herein is intended only to show the typical functions of and
examples of application circuits for the Products. ROHM does not grant you, explicitly or
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