ROHM DTC143EUA User Guide
Summary
The DTC143E series is a robust line of NPN digital transistors designed primarily for signal switching, inverter circuits, and driving applications. Featuring integrated biasing resistors, these components simplify complex circuit design by eliminating the need for numerous external input resistors while maintaining high performance and reliability. This manual provides comprehensive technical data, including electrical characteristics, optimal usage guidelines, and dimensional specifications. It is essential for engineers developing sophisticated electronic equipment like consumer electronics or communication devices requiring reliable interface and driver circuits in a lead-free format.
Page 1 Text Content
DTC143E 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
DTC143EM DTC143EEB
R2 4.7k W (SC-105AA) (SC-89)
EMT3 UMT3F
l Features OUT
1) Built-In Biasing Resistors, R1 = R2 = 4.7k W. IN
2) Built-in bias resistors enable the configuration of GND
an inverter circuit without connecting external
DTC143EE DTC143EUB 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
DTC143EUA DTC143EKA operation, making the circuit design easy. SOT-323 (SC-70) SOT-346 (SC-59)
5) Complementary PNP Types :DTA143E series
6) Lead Free/Ro HS Compliant. l Inner circuit
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)
DTC143EM VMT3 T2L 8,000 DTC143EEB EMT3F TL 3,000 DTC143EE EMT3 TL 3,000 DTC143EUB UMT3F TL 3,000 DTC143EUA UMT3 T106 3,000 DTC143EKA 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 DTC143EUA User Guide
Manual Details
| Brand | ROHM |
|---|---|
| Pages | 11 |
| File Size | 780.69 KB |
| Published | May 29, 2026 |
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Frequently Asked Questions
Do I need external resistors for inverter configuration?
No; the built-in thin-film bias resistors allow you to configure an inverter circuit without connecting external input resistors.
What is the maximum operating supply voltage?
The absolute maximum rating specifies that the Supply Voltage (V CC) can reach 50V.
Can I use this device in critical safety systems, like medical instruments?
No. They are not designed for equipment requiring extremely high levels of reliability where failure could directly threaten human life or cause injury.
What general types of electronics can these transistors be used in?
They can be used in various electronic equipment, including audio visual, office-automation, communication devices, and amusement devices.