ROHM DTB123YU, DTB123YK Technical data

500mA / 50V Digital transistors

(with built-in resistor)

DTB123YU / DTB123YK

 Applications  Dimensions (Unit : mm)
Inverter, Interface, Driver

DTB123YU

 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 positive biasing of the input.
They also have the advantage of almost completely
eliminating parasitic effects.

ROHM : UMT3
EIAJ : SC-70

3) Only the on / off conditions need to be set for operation,
making the device design easy.

DTB123YK

 Structure
PNP epitaxial planar silicon transistor
(Resistor built-in type)

 Packaging specifications

Part No.

DTB123YU

DTB123YK

Package

Packaging type TapingTaping

Code

Basic ordering
unit (pieces)

UMT3

T106

3000

SMT3

T146

3000

−

−

ROHM : SMT3
EIAJ : SC-59

 Absolute maximum ratings (Ta=25C) Inner circuit

Parameter Symbol

Supply voltage

Input voltage

Output current

Power dissipation

Junction temperature

Storage temperature

V

V

I

P

Tj

Tstg

CC

IN

C

D

Limits

DTB123YU DTB123YK

−50

−12 to +5

−500

200

150

−55 to +150

Unit

V

V

mA

mW

°C

°C

R

1

IN

R

2

IN

2.0

0.3

(3)

(1)

(2)

0.65

0.65

1.3

Abbreviated symbol : F52

2.9

0.4

(3)

(2)

0.95 0.95

1.9

Abbreviated symbol : F52

OUT

GND(

OUT

GND(+)

0.9

0.7

0.2

2.1

1.25

0.15

Each lead has same dimensions

1.1

0.8

1.6

2.8

(1)

0.15

Each lead has same dimensions

+

)

0.1Min.

0.3Min.

(1) GND
(2) IN
(3) OUT

(1) GND
(2) IN
(3) OUT

R1=2.2kΩ, R2=10kΩ

www.rohm.com

1/2

c

○

2009 ROHM Co., Ltd. All rights reserved.

2009.06 - Rev.E

 Electrical characteristics (Ta=25C)

Parameter

Symbol

Input voltage

Output voltage

Input current

Output current

DC current gain

Input resistance

Resistance ratio

Transition frequency

Characteristics of built-in transistor

∗

 Electrical characteristic curves

-100

-50

(V)

-20

I (on)

-10

-5
Ta= −40

°C

25

-2

-1

-500m

INPUT VOLTAGE : V

-200m

-100m

-1m-0.5m -2m -5m -10m -20m -50m -100m -200m -500m

°C

100

°C

OUTPUT CURRENT : I

O

Fig.1 Input voltage vs. output current

(ON characteristics)

-1

-500m

(V)

-200m

O (on)

-100m

-50m

-20m

-10m

-5m

OUTPUT VOLTAGE : V

-2m

-1m

Ta=100°C

25°C

−40°C

-1m-0.5m -2m -5m -10m -20m -50m -100m -200m -500m

OUTPUT CURRENT : I

O

Fig.4 Output voltage vs. output
current

V

I(off)

V

I(on)

V

O(on)

I

I

I

O(off)

G

I

R

1

R2/R

1

f

T

∗

VO= −0.3V

(A)

lO/lI=20

(A)

Min.

−

−2

−

−

−

56

1.54

3.6

−

Typ. Max. Unit Conditions

−

−

−0.1

−

−

−

2.2

4.5

200

−0.3

−

−0.3

−3.0

−0.5

−

2.86

5.5

−

-10m

-5m

-2m

(A)

-1m

-500μ

-200μ

-100μ

-50μ

-20μ

-10μ

OUTPUT CURRENT : Io

-5μ

-2μ

-1μ
0 -3.0

CC

= −5V, IO= −100μA

V

V

V

O

= −0.3V, IO= −20mA

V

I

O/II

= −50mA/−2.5mA

mA

I

= −5V

V

μA

V

CC

= −50V, VI= 0V

−

O

= −5V, IO= −50mA

V

kΩ

−

MHz

VCE= −

10V, IE= 50mA, f=

Ta=100°C

25°C

−40°C

-0.5 -1.0 -1.5 -2.0 -2.5

INPUT VOLTAGE : V

−

−

I (off)

Fig.2 Output current vs. input voltage

(OFF characteristics)

VCC= −

(V)

100MHz

5V

Data Sheet DTB123YU / DTB123YK

1k

500

I

200

100

DC CURRENT GAIN : G

Ta=100°C

25°C

−40°C

50

20

10

5

2

1

-1m-0.5m -2m -5m -10m -20m -50m -100m -200m -500m

OUTPUT CURRENT : I

Fig.3 DC current gain vs. output
current

O

(A)

VO= −5V

www.rohm.com

2/2

c

○

2009 ROHM Co., Ltd. All rights reserved.

2009.06 - Rev.E

Notes

No copying or reproduction of this document, in part or in whole, is permitted without the
consent of ROHM Co.,Ltd.

The content specied herein is subject to change for improvement without notice.

The content specied herein is for the purpose of introducing ROHM's products (hereinafter
"Products"). If you wish to use any such Product, please be sure to refer to the specications,
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 specied in this document.
However, should you incur any damage arising from any inaccuracy or misprint of such
information, ROHM shall bear no responsibility for such damage.

The technical information specied 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
implicitly, any license to use or exercise intellectual property or other rights held by ROHM and
other par ties. ROHM shall bear no responsibility whatsoever for any dispute arising from the
use of such technical information.

Notice

The Products specied in this document are intended to be used with general-use electronic
equipment or devices (such as audio visual equipment, ofce-automation equipment, commu­nication devices, electronic appliances and amusement devices).

The Products specied in this document are not designed to be radiation tolerant.

While ROHM always makes efforts to enhance the quality and reliability of its Products, a
Product may fail or malfunction for a variety of reasons.

Please be sure to implement in your equipment using the Products safety measures to guard
against the possibility of physical injury, re or any other damage caused in the event of the
failure of any Product, such as derating, redundancy, re control and fail-safe designs. ROHM
shall bear no responsibility whatsoever for your use of any Product outside of the prescribed
scope or not in accordance with the instruction manual.

The Products are not designed or manufactured to be used with any equipment, device or
system which requires an extremely high level of reliability the failure or malfunction of which
may result in a direct threat to human life or create a risk of human injury (such as a medical
instrument, transportation equipment, aerospace machinery, nuclear-reactor controller,
fuel-controller or other safety device). ROHM shall bear no responsibility in any way for use of
any of the Products for the above special purposes. If a Product is intended to be used for any
such special purpose, please contact a ROHM sales representative before purchasing.

If you intend to export or ship overseas any Product or technology specied herein that may
be controlled under the Foreign Exchange and the Foreign Trade Law, you will be required to
obtain a license or permit under the Law.

www.rohm.com
© 2009 ROHM Co., Ltd. All rights reserved.

Thank you for your accessing to ROHM product informations.
More detail product informations and catalogs are available, please contact us.

ROHM Customer Support System

http://www.rohm.com/contact/

R0039

A