Transistor
DTC123JM / DTC123JE / DTC123JUA /
DTC123JKA / DTC123JSA
Digital transistors (built-in resistors)
DTC123JM / DTC123JE / DTC123JUA
DTC123JKA / DTC123JSA
Features
1) Built-in bias resistors enable the configuration of an
inverter circuit without connecting external input
resistors (see the 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 device design easy.
Equivalent circuit
R
1
IN
R
2
OUT
GND
IN
GND
OUT
Structure
NPN digital transistor
(Built-in resistor type)
External dimensions
(Unit : mm)
DTC123JM
0.2
1.2
0.32
DTC123JE
1.2
0.8
(2)
(3)
(1)
1.6±0.2
1.0±0.1
0.2
0.4 0.4
0.8
+0.1
0.2
−0.05
(1)
0.5 0.5
+0.1
0.2
−0.05
0.8±0.1
1.6±0.2
0.7±0.1
0.55±0.1
0.5
0.22
(2)
0~0.1
0.13
0~0.1
0.15Max.
ROHM : VMT3
ROHM : EMT3
+0.1
0.3
−0.05
0.15±0.05
Abbreviated symbol : E42
Abbreviated symbol : E42
DTC123JUA
2.0±0.2
1.3±0.1
0.65 0.65
(1)
(2)
1.25±0.1
2.1±0.1
DTC123JKA
0.9±0.1
0.2
0.7±0.1
(1)
0~0.1
2.9±0.2
1.9±0.2
0.95 0.95
(2)
1.6
+0.2
−0.1
2.8±0.2
1.1
+0.2
−0.1
0.8±0.1
0.1Min.
(1) IN
(2) GND
(3) OUT
(3)
(1) GND
(2) IN
(3) OUT
0~0.1
(3)
ROHM : UMT3
EIAJ : SC-70
Abbreviated symbol : 142
(1) GND
(2) IN
(3) OUT
0.3Min.
0.3
+0.1
0.15±0.05
−0
All terminals have same dimensions
0.1Min.
(3)
+0.1
0.15
−0.06
0.4
+0.1
−0.05
All terminals have same dimensions
ROHM : SMT3
EIAJ : SC-59
(1) GND
(2) IN
(3) OUT
Abbreviated symbol : E42
DTC123JSA
3
±
0.2
4
±
0.2
2
±
0.2
(15Min.)
0.45
+
0.15
−
0.05
3Min.
5
2.5
+
0.4
−
0.1
0.5
0.45
+
0.15
−
0.05
ROHM : SPT
EIAJ : SC-72
(1) (2) (3)
(1) GND
(2) OUT
(3) IN
Rev.A
1/3
ROHM [ ROHM ]
