EMD4 / UMD4N is a digital dual transistor launched by ROHM Semiconductor. It integrates DTA114Y and DTC144E chips, and can be mounted with EMT3 or UMT3 automatic mounting machines. The transistor has independent transistor elements, which can eliminate interference, and can reduce the installation cost and area by half.
The document describes the EMD4/UMD4N dual digital transistors, which combine a PNP and an NPN transistor each with an integrated resistor. Both the DTA114Y and DTC144E chips are offered in EMT6 or UMT6 surface‑mount packages and are suitable for automatic mounting machines.
Key information includes absolute maximum ratings, typical electrical parameters such as supply voltage, current, gain, and transition frequency, as well as external dimensions and packaging codes. An appendix notes usage restrictions for safety‑critical equipment and export‑control considerations.
| Package types | EMT6, UMT6 |
|---|---|
| Resistor ratio (DTr1) | R1/R2 = 47 kΩ / 47 kΩ |
| Transition frequency (fT) | 100 MHz |
| Typical supply voltage | 5 V |
They are offered in EMT6 and UMT6 surface‑mount packages.
The transistors have a transition frequency of 100 MHz.
The resistor ratio R1/R2 for DTr1 is 47 kΩ / 47 kΩ.
The typical supply voltage shown in the specifications is 5 V.