ROHM DTC124XM, DTC124XE, DTC124XKA, DTC124XUA Technical data

100mA / 50V Digital transistors

(with built-in resistors)

DTC124XM / DTC124XE / DTC124XUA / DTC124XKA

 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.

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

 Dimensions (Unit : mm)

DTC124XM DTC124XE

1.2

0.32

0.2

(3)

1.2

0.8

(2)

(1)

ROHM : VMT3

DTC124XUA

ROHM : UMT3
EIAJ : SC-70

0.22

0.4 0.4

0.8

Abbreviated symbol : 45

2.0

0.3

(3)

(1)

(2)

0.65

0.65

1.3

Abbreviated symbol : 45

0.13

0.2

0.5

0.9

0.7

0.2

2.1

1.25

0.15

Each lead has same dimensions

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

(1) GND
(2) IN

0.1Min.

(3) OUT

ROHM : EMT3
EIAJ : SC-75A

DTC124XKA

ROHM : SMT3
EIAJ : SC-59

1.6

0.3

(3)

(2)

0.2

(1)

0.2

0.5

0.5

1.0

Abbreviated symbol : 45

2.9

0.4

(3)

(2)

0.95 0.95

1.9

Abbreviated symbol : 45

 Packaging specifications  Inner circuit

TL

−

−

−

UMT3EMT3 SMT3

T106

3000

T146

3000

−

−

−

−

−

−

R

IN

1

R

2

IN

Part No.

DTC124XM

DTC124XE

DTC124XUA

DTC124XKA

Package

Packaging type

Code

Basic ordering
unit (pieces)

VMT3

T2L

8000

−

−

−

TapingTaping Taping Taping

3000

R1=22kΩ R2=47kΩ

0.7

0.55

1.6

0.8

0.15

1.6

(1)

0.1Min.

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

1.1

0.8

2.8

0.15

Each lead has same dimensions

(1) GND
(2) IN

0.3Min.

(3) OUT

OUT

GND

OUT

GND

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2009 ROHM Co., Ltd. All rights reserved.

2009.06 - Rev.B

 Absolute maximum ratings (Ta=25C)

Parameter Symbol

Supply voltage

Input voltage

Output current

Power dissipation

Junction temperature

Storage temperature

V

V

I

C(Max.)

P

Tstg

CC

IN

I

O

D

Tj

 Electrical characteristics (Ta=25C)

Parameter Symbol

V

Input voltage

Output voltage

Input current

Output current

DC current gain

Input resistance

Resistance ratio

Transition frequency

∗ Characteristics of built-in transistor

V

V

O(on)

I

O(off)

G

R

R2/R

I(off)

I(on)

I

f

I

T

 Electrical characteristic curves

100

50

20

(V)

I(on)

10

5

2

1

500m

INPUT VOLTAGE : V

200m

100m

100μ 200μ 500μ 1m 2m 5m 10m 20m 50m 100m

Ta=−40°C

25°C

100°C

OUTPUT CURRENT : I

O

(A)

VO=0.3V

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

100μ 200μ 500μ 1m 2m 5m 10m 20m 50m 100m

Ta=100°C

25°C

−40°C

OUTPUT CURRENT : I

lO/lI=20

O

(A)

Fig.4 Output voltage vs. output

current

DTC124XEDTC124XM DTC124XUA DTC124XKA

−10 to +40

150 200

−55 to +150

Min.

Typ. Max. Unit Conditions

−

2.5

−

0.1

−

−

68

I

15.4

1.7

22

2.1

−

250

1

1

∗

Limits

Unit

50

50

100

mA

mW

150

−

0.4

−

−

0.3

−

0.36

−

0.5

−

−

28.6

2.6

−

10m

5m

2m

1m

500μ

200μ

100μ

50μ

20μ

10μ

OUTPUT CURRENT : Io (A)

V

CC

V

V

mA

μA

−

=5V, IO=100μA

V

O

=0.3V, IO=2mA

I

O/II

=10mA/0.5mA

V

I

=5V

V

CC

=50V, VI=0V

O

=5V, IO=5mA

V

kΩ

−−

V

CE

MHz

VCC=5V

5μ

2μ
1μ

0 3.0

=10V, IE=−5mA, f=100MHz

Ta=100°C

0.5 1.0 1.5 2.0 2.5

INPUT VOLTAGE : VI(off) (V)

Fig.2 Output current vs. input voltage

(OFF characteristics)

°C

°C

V

V

25°C

−40°C

Data Sheet DTC124XM / DTC124XE / DTC124XUA / DTC124XKA

−

1k

500

200

100

50

20

10

5

DC CURRENT GAIN : GI

2

1

100μ 200μ 500μ 1m 2m 5m 10m 20m 50m 100m

Ta=100°C

25°C

−40°C

OUTPUT CURRENT : I

VO=5V

O (A)

Fig.3 DC current gain vs. output

current

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2009 ROHM Co., Ltd. All rights reserved.

2009.06 - Rev.B

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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.

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