ROHM DTC124EUA User Guide
Summary
The DTC124E series provides robust NPN/PNP digital transistors designed for easy implementation in switching, driver, and inverter circuits. These components feature integrated biasing resistors, eliminating the need for external input networks and simplifying complex circuit design. This datasheet provides comprehensive technical specifications, including absolute maximum ratings, electrical characteristics (I(on)/I(off) curves), dimensional drawings, and performance data essential for engineers designing professional-grade interface and logic circuitry.
Page 1 Text Content
DTC124E series
Datasheet
NPN 100m A 50V Digital Transistors (Bias Resistor Built-in Transistors)
l Outline Parameter Value VMT3 EMT3F
VCC OUT OUT
IN IN
IC(MAX.) 100m A
DTC124EM DTC124EEB
R2 22k W (SC-105AA) (SC-89)
EMT3 UMT3F
l Features OUT
1) Built-In Biasing Resistors, R1 = R2 = 22k W. IN
2) Built-in bias resistors enable the configuration of GND
an inverter circuit without connecting external
DTC124EE DTC124EUB input resistors (see inner circuit). SOT-416 (SC-75A) (SC-85)
UMT3 SMT3
3) The bias resistors consist of thin-film resistors
with complete isolation to allow negative biasing OUT of the input. They also have the advantage of
IN IN completely eliminating parasitic effects. GND
4) Only the on/off conditions need to be set for
DTC124EUA DTC124EKA operation, making the circuit design easy. SOT-323 (SC-70) SOT-346 (SC-59)
5) Complementary PNP Types :DTA124E series
6) Complex transistors :EMH1 /UMH1N /IMH1A l Inner circuit
UMH5N /IMH5A （NPN type） 7) Lead Free/Ro HS Compliant.
l Application Switching circuit, Inverter circuit, Interface circuit, Driver circuit
l Packaging specifications
Package Basic
Taping Reel size Tape width
Part No. Package size ordering Marking
code (mm) (mm)
(mm) unit (pcs)
DTC124EM VMT3 T2L 8,000 DTC124EEB EMT3F TL 3,000
EMT3 TL 8DTC124EE 3,000
DTC124EUB UMT3F TL 3,000 DTC124EUA UMT3 T106 3,000 DTC124EKA SMT3 T146 3,000
www.rohm.com © 2012 ROHM Co., Ltd. All rights reserved. 1/10 2012.04 - Rev.A
Page Summary Contents For ROHM DTC124EUA User Guide
Manual Details
| Brand | ROHM |
|---|---|
| Pages | 11 |
| File Size | 785.75 KB |
| Published | June 20, 2026 |
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Frequently Asked Questions
Are external resistors needed for inverter circuit configuration?
No, the built-in bias resistors allow the configuration of an inverter circuit without connecting external input resistors.
What critical applications are restricted from using this component?
It cannot be used in equipment requiring extreme reliability where failure could threaten human life, such as medical instruments or aerospace machinery.
What is the specified maximum collector current rating?
The datasheet specifies the maximum collector current ($I_C$) at 100 mA.