ROHM EMD4 Data Manual
Summary
The EMD4/UMD4N provides dual digital transistors integrating both PNP and NPN types for stable electronic switching. This manual offers comprehensive technical details, including detailed electrical characteristics, performance curves, maximum ratings, and advanced packaging options (EMT6/UMT6). Ideal for engineers designing general-purpose electronic equipment—such as office or consumer devices—it delivers high reliability in compact areas while minimizing mounting costs.
Page 1 Text Content
EMD4 / UMD4N
Transistors
General purpose (dual digital transistors) EMD4 / UMD4N Features External dimensions (Unit : mm) 1) Both the DTA114Y chip and DTC144E chip in
an EMT6 or UMT6 package.
2) Mounting possible with EMT3 or UMT3 automatic
(2)(5) mounting machines. (6) (1) 1.2 3) Transistor elements are independent, eliminating 1.6
interference. 4) Mounting cost and area can be cut in half. ROHM : EMT6 Each lead has same dimensions
Abbreviated symbol : D4
Structure UMD4N
A PNP and NPN digital transistor
(each with a single built in resistor) 0. 0.
The following characteristics apply to both the DTr1 and
DTr2, however, the “ −” sign on DTr2 values for the PNP 0.
type have been omitted. 0.1Min.
ROHM : UMT6 Each lead has same dimensions EIAJ : SC-88
Equivalent circuit Abbreviated symbol :D4
EMD4 / UMD4N
DTr1 R1/R2=47kΩ / 47kΩ
Packaging specifications
Package Taping
Type Code T2R TR Basic ordering unit (pieces)
EMD4 UMD4N
Rev.B 1/4
Page Summary Contents For ROHM EMD4 Data Manual
Manual Details
| Brand | ROHM |
|---|---|
| Pages | 5 |
| File Size | 76.55 KB |
| Published | June 18, 2026 |
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