ROHM DTA143ZUB User Guide
Summary
This datasheet documents the ROHM DTA143Z series of PNP digital transistors rated for -50V collector-emitter voltage and -100mA maximum collector current. Each device integrates thin-film bias resistors (R1=4.7kΩ input, R2=47kΩ base-emitter) that enable inverter circuit configuration without external input resistors, eliminating parasitic effects through complete isolation and allowing negative input biasing. Available in six surface-mount packages including VMT3 (1.2×1.2mm), EMT3F, EMT3, UMT3F,
Page 1 Text Content
DTA143Z series
Datasheet
PNP -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
DTA143ZM DTA143ZEB
R2 47k W (SC-105AA) (SC-89)
EMT3 UMT3F
l Features OUT
1) Built-In Biasing Resistors IN
2) Built-in bias resistors enable the configuration of GND
an inverter circuit without connecting external
DTA143ZE DTA143ZUB 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
DTA143ZUA DTA143ZKA operation, making the circuit design easy. SOT-323 (SC-70) SOT-346 (SC-59)
5) Complementary NPN Types :DTC143Z 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)
DTA143ZM VMT3 T2L 8,000 E13 DTA143ZEB EMT3F TL 3,000 E13
EMT3 TL 8DTA143ZE 3,000 E13
DTA143ZUB UMT3F TL 3,000 DTA143ZUA UMT3 T106 3,000 DTA143ZKA SMT3 T146 3,000 E13
www.rohm.com © 2012 ROHM Co., Ltd. All rights reserved. 1/10 2012.04 - Rev.A
Page Summary Contents For ROHM DTA143ZUB User Guide
Manual Details
| Brand | ROHM |
|---|---|
| Pages | 11 |
| File Size | 718.79 KB |
| Published | June 22, 2026 |
Enter the captcha to get the download link:
Frequently Asked Questions
What types of circuits can the DTA143Z series be used for?
It is suitable for applications like switching, inverter, interface, and driver circuits.
Is this component appropriate for life-support or aerospace safety equipment?
No, it is not designed for systems requiring an extremely high level of reliability where failure could threaten human life.
Does the inclusion of bias resistors simplify design?
Yes, they enable inverter circuit configuration without connecting external input resistors and only require setting on/off conditions.
What are the general safety precautions when using this product?
Users must implement safety measures like derating or fail-safe designs, as ROHM is not responsible for use outside prescribed scope.