ROHM DTC143TUB User Guide
Summary
Product specification for ROHM DTC143T series digital transistors (bias resistor built-in transistors) in various surface-mount packages including VMT3 (SC-105AA), EMT3 (SOT-346), UMT3 (SC-85), and SMT3 (SC-72). Features built-in biasing resistors enabling inverter circuit configuration without connecting external input resistors (see equivalent circuit), bias resistors consisting of thin-film resistors with complete isolation to allow negative biasing of input, advantage of completely eliminati
Page 1 Text Content
DTC143T series
Datasheet
NPN 100m A 50V Digital Transistors (Bias Resistor Built-in Transistors)
l Outline Parameter Value VMT3 EMT3F
Collector
Collector
VCEO 50V IC 100m A
Emitter
Emitter
DTC143TM DTC143TEB (SC-105AA) (SC-89)
EMT3 UMT3F
Collector Collector
l Features 1) Built-In Biasing Resistors
2) Built-in bias resistors enable the configuration of Emitter Emitter
an inverter circuit without connecting external
DTC143TE DTC143TUB input resistors (see equivalent circuit). SOT-416 (SC-75A) (SC-85)
UMT3 SMT3
3) The bias resistors consist of thin-film resistors
Collector Collector
with complete isolation to allow negative biasing of the input. They also have the advantage of
Emitter
completely eliminating parasitic effects. Emitter
4) Only the on/off conditions need to be set for
DTC143TUA DTC143TKA operation, making the circuit design easy. SOT-323 (SC-70) SOT-346 (SC-59)
5) Complementary PNP Types :DTA143T series
6) Complex transistors :EMH3 /UMH3N /IMH3A l Inner circuit
/EMG3 /UMG3N /FMG3A （PNP 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)
DTC143TM VMT3 T2L 8,000 DTC143TEB EMT3F TL 3,000 DTC143TE EMT3 TL 3,000 DTC143TUB UMT3F TL 3,000 DTC143TUA UMT3 T106 3,000 DTC143TKA SMT3 T146 3,000
www.rohm.com © 2012 ROHM Co., Ltd. All rights reserved. 1/9 2012.04 - Rev.A
Page Summary Contents For ROHM DTC143TUB User Guide
Manual Details
| Brand | ROHM |
|---|---|
| Pages | 10 |
| File Size | 741.11 KB |
| Published | June 22, 2026 |
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Frequently Asked Questions
What kind of circuits does the DTC143T series support?
It can be used for switching, inverter, interface, and driver circuits.
Are built-in bias resistors provided on the transistors?
Yes, they feature built-in biasing resistors for easier circuit design.
What is the maximum collector current (I_C)?
The maximum rated collector current capability is 100mA.
Is the product compliant with modern standards?
Yes, the transistors are Lead Free/RoHS Compliant.