ROHM EMH3 UMH3N IMH3A User's Manual
Summary
These complex digital NPN transistors are high-performance switching components featuring built-in bias resistors, simplifying circuit design by eliminating the need for external input resistors and minimizing parasitic effects. They are ideal for applications requiring reliable signal control such as inverter, interface, or driver circuits. This manual provides comprehensive technical specifications, electrical characteristic curves, and detailed dimensional guides, ensuring precise implementation into your electronic equipment designs.
Page 1 Text Content
EMH3 / UMH3N / IMH3A
Datasheet
NPN 100m A 50V Complex Digital Transistors (Bias Resistor Built-in Transistors)
l Outline Parameter Tr1 and Tr2 EMT6 UMT6
VCEO (5)
IC(MAX.) 100m A (2) (2)
EMH3 UMH3N (SC-107C) SOT-353 (SC-88)
(4) l Features (5) (6)
1) Built-In Biasing Resistors.
2) Two DTC143T chips in one package. (1) 3) Built-in bias resistors enable the configuration of
IMH3A an inverter circuit without connecting external SOT-457 (SC-74)
input resistors (see inner circuit). 4) The bias resistors consist of thin-film resistors
with complete isolation to allow negative biasing l Inner circuit
of the input. They also have the advantage of
EMH3 / UMH3N IMH3A
completely eliminating parasitic effects.
Collector Emitter Collector Emitter 5) Only the on/off conditions need to be set for (6) (5) (4) (4) (5) (6)
operation, making the circuit design easy. 6) Lead Free/Ro HS Compliant.
l Application
(1) (2) (3) (3) (2) (1) Emitter Collector Emitter Collector
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)
EMH3 EMT6 T2R 8,000 H38 UMH3N UMT6 TR 3,000 H3 IMH3A SMT6 T108 3,000 H3
www.rohm.com © 2012 ROHM Co., Ltd. All rights reserved. 1/6 2012.06 - Rev.B
Page Summary Contents For ROHM EMH3 UMH3N IMH3A User's Manual
Manual Details
| Brand | ROHM |
|---|---|
| Pages | 7 |
| File Size | 639.54 KB |
| Published | July 12, 2026 |
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Frequently Asked Questions
How can the IMH3A be configured as an inverter circuit?
The built-in bias resistors allow for the configuration of an inverter circuit without external input resistors.
What is the maximum collector power dissipation for the EMH3 and UMH3N models?
The total collector power dissipation for both EMH3 and UMH3N transistors does not exceed 150mW.
Can these devices be used in life-critical applications like medical instruments or aerospace systems?
No, they are not designed or manufactured for equipment requiring extremely high reliability to prevent immediate threat to human life.
What critical safety measures should be implemented when integrating these products into a design?
Users must implement safety measures such as derating, redundancy, fire control, and fail-safe designs against potential product failure.