ROHM DTC144WE Technical data

100mA / 50V Digital transistors
(with built-in resistors)

DTC144WE / DTC144WUA / DTC144WKA

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

 Features

1) Built-in bias resistors enable the configuration of an inverter
circuit without connecting external input resistors.

2) The bias resistors consist of thin-film resistors with complete
isolation to allow negative biasing of the input, and parasitic
effects are almost completely eliminated.

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

4) Higher mounting densities can be achieved.

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

 Packaging specifications

Part No.
DTC144WE
DTC144WUA
DTC144WKA

Package
Packaging type
Code
Basic ordering unit (pieces)

EMT3

Taping

TL

3000

UMT3

Taping

T106
3000

−−

−

−−

SMT3

Taping

T146
3000

−

 Inner circuit

R

1

IN

R

2

OUT

GND

EMT3

(SC-75A)
<SOT-416>

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

UMT3

<SC-70>

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

SMT3

<SC-59>

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

1.6

0.3

(3)

0.8

(2)

0.2

(1)

0.2

0.5

0.5

1.0

Abbreviated symbol : 86

2.0

0.3

(3)

1.25

(1)

(2)

0.65

0.65

1.3

Abbreviated symbol : 86

2.9

0.4

(3)

(2)

0.95 0.95

Abbreviated symbol : 86

(1)

1.9

0.7

0.55

1.6

0.15

0.1Min.

Each lead has same dimensions

0.9

0.7

0.2

2.1

0.15

Each lead has same dimensions

1.6

2.8

0.15

Each lead has same dimensions

0.1Min.

1.1

0.8

0.3Min.

IN

R1=47kΩ, R2=22kΩ

GND

OUT

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2009 ROHM Co., Ltd. All rights reserved.

○

2009.06 - Rev.C

 Absolute maximum ratings (T a=25C)

Parameter Symbol
Supply voltage
Input voltage

Output current
Power

dissipation
Junction temperature

Storage temperature

 Electrical characteristics (Ta=25C)

Input voltage
Output voltage

Input current
Output current
DC current
Input resistance
Resistance ratio

Transition frequency

Characteristics of built-in transistor

∗

 Electrical characteristic curves

100

50

) (V)

20

on

(

I

10

5

2
1

500m

INPUT VOLTAGE : V

200m
100m

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

Fig.1 Input voltage vs. Output current
(ON characteristics)

500m

200m

) (V)

on

(

100m

O

50m

20m
10m

5m

OUTPUT VOLTAGE : V

2m
1m

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

Fig.4 Output voltage vs. Output current

DTC144WE
DTC144WUA / DTC144WKA

Parameter Symbol Min. Typ. Max. Unit Conditions

I(off)

V
V

I(on)

V

O(on)

I

I

I

O(off)

G

gain

V

O

=0.3V

Ta= 40°C

OUTPUT CURRENT : I

IO/I

I

=20/1

OUTPUT CURRENT : I

Ta=25°C

Ta=25°C

Ta=100°C

Ta=100°C

O

(A)

Ta= 40°C

O

(A)

I

R

1

R

2/R1

f

T

CC

V

V
I

I

C(Max.)

P

I

O

D

−10 to +40

Tj

Tstg

−55 to +150

−

4 −−

−

0.1

−

−

56

32.9

−

−

−

−

47

Limits

50

30
100
150
200
150

0.8

0.3

0.16

0.5

−

61.1

V
V

mA

μA

−

kΩ

Unit

V
V

mA

mW

°C
°C

V
V
I

O

V
V
I

O

CC

=5V, IO=100μA

O

=0.3V, IO=2mA

=10mA, II=0.5mA

I

=5V

CC

=50V, VI=0V

=5mA, VO=5V

−

0.37 0.47 0.57 −−

∗

(A)

O

OUTPUT CURRENT : I

250

−

10m

V

CC

=5V

5m
2m

500∝
200∝

100∝

50∝
20∝

10∝

1m

5∝
2∝

1∝

Ta=100°C

Ta=25°C

0 500m 1 1.5 2 2.5 3

INPUT VOLTAGE : VI(

Fig.2 Output current vs. Input voltage

MHz

−

off

) (V)

Ta= 40°C

V

CE

=10V, IE= −5mA, f=100MHz

500

I

200
100

DC CURRENT GAIN : G

1k

V

O

50

20
10

5

2
1

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

Fig.3 DC current gain vs. Output current

(OFF characteristics)

=5V

Ta=25°C

OUTPUT CURRENT : I

Data Sheet DTC144WE / DTC144WUA / DTC144WKA

Ta=100°C

Ta= 40°C

O

(A)

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2009 ROHM Co., Ltd. All rights reserved.

○

2009.06 - Rev.C

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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
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R0039

A