This document describes the features and characteristics of the EMZ2 / UMZ2N / IMZ2A dual transistors, including their equivalent circuits, absolute maximum ratings, package specifications, and external dimensions.
The EMZ2, UMZ2N, and IMZ2A are dual transistors offered by ROHM for power‑management applications. They are supplied in SMT, EMT, and UMT packages and are intended for use in a wide range of electronic equipment such as audio‑visual, office‑automation, communications, and consumer devices.
The document lists absolute maximum ratings, detailed electrical characteristics for both PNP and NPN versions, and includes characteristic curves, package dimensions, and marking information. An appendix contains legal and export‑control notices.
| Collector‑base voltage (V CBO) | 60 V |
|---|---|
| Collector‑emitter voltage (V CEO) | 50 V |
| Emitter‑base voltage (V EBO) | 6 V |
| Collector current (I C) | 150 mA |
| Power dissipation (TOTAL) | 300 mW |
| Transition frequency (fT) – PNP | 140 MHz |
| Transition frequency (fT) – NPN | 180 MHz |
| Package type | SMT |
The maximum collector current is 150 mA.
The PNP version has a transition frequency of 140 MHz.
They are supplied in an SMT package.