ROHM EMA3 UMA3N FMA3A Data Sheet
Summary
These complex digital transistors are engineered for reliable interface and driver circuitry. Featuring built-in bias resistors and a dual chip configuration in a single package, they significantly simplify circuit design by eliminating the need for external input components. The accompanying datasheet provides comprehensive specifications, including absolute maximum ratings, electrical characteristics, and application details. This component is ideal for electronics engineers designing compact and reliable systems utilizing simple on/off switching functionality while ensuring RoHS compliance.
Page 1 Text Content
EMA3 / UMA3N / FMA3A
Datasheet
PNP -100m A -50V Complex Digital Transistors (Bias Resistor Built-in Transistors)
l Outline Parameter Tr1 and Tr2 EMT5 UMT5
VCEO -50V
IC(MAX.) -100m A
EMA3 UMA3N (SC-107BB) SOT-353 (SC-88A)
l Features
1) Built-In Biasing Resistors. (5) (4) 2) Two DTA143T chips in one package. (3)
3) Emitter-common type.
FMA3A 4) Built-in bias resistors enable the configuration of (SC-74A)
an inverter circuit without connecting external input resistors (see inner circuit).
5) The bias resistors consist of thin-film resistors l Inner circuit
with complete isolation to allow negative biasing
EMA3 / UMA3N FMA3A
of the input. They also have the advantage of
Emitter Emitter completely eliminating parasitic effects. (3) (2) (1) (3) (4) (5)
6) Only the on/off conditions need to be set for operation, making the circuit design easy. 7) Lead Free/Ro HS Compliant.
(4) (5) (2) (1) Collector Collector Collector Collector
l Application 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)
EMA3 EMT5 T2R 8,000 A38 UMA3N UMT5 TR 3,000 A3 FMA3A SMT5 T148 3,000 A3
www.rohm.com © 2012 ROHM Co., Ltd. All rights reserved. 1/6 2012.06 - Rev.B
Page Summary Contents For ROHM EMA3 UMA3N FMA3A Data Sheet
Manual Details
| Brand | ROHM |
|---|---|
| Pages | 7 |
| File Size | 566.55 KB |
| Published | June 20, 2026 |
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Frequently Asked Questions
What is the main advantage of these transistors?
They include built-in biasing resistors and feature two DTA143T chips in one package, simplifying circuit design.
What are the limitations regarding maximum power dissipation?
The total collector power dissipation for EMA3/UMA3N must not exceed 150 mW, while FMA3A is rated up to 300 mW.
Can these devices be used in high-reliability systems like medical equipment?
No. They are not designed for use with equipment requiring an extremely high level of reliability.
Does the packaging information provide dimensional details?
Yes, dimensions are provided for both EMT5 and UMT5 packages, under a dedicated section.