EMA5/UMA5N/FMA5A is a dual-transistor complex digital transistor launched by ROHM. It features built-in bias resistors, which do not require external input resistors to form an inverter circuit. It has the advantages of large drive current, wide operating voltage range, and completely isolated bias resistors.
This datasheet describes ROHM's EMA2, UMA2N and FMA2A PNP transistors with built‑in bias resistors (Ry = Re = 47 kΩ). It lists features such as dual DTA144E chips in one package, emitter‑common configuration, and RoHS compliance, and shows typical application circuits for interface and driver functions.
The document includes absolute maximum ratings, detailed electrical characteristics (supply voltage, input voltage range, output current, power dissipation, junction temperature, transition frequency), characteristic curves, and mechanical dimensions for the EMT5, UMT5 and SMT5 package styles. A notice at the end outlines usage restrictions and safety considerations.
| Supply voltage (Veo) | -50 V |
|---|---|
| Input voltage range (Vin) | -40 V to +10 V |
| Output current (Io) | -30 mA |
| Collector current max (Icmax) | -100 mA |
| Power dissipation (EMA2/UMA2N) | 150 mW total |
| Junction temperature (Tj) | 150 °C |
| Built‑in bias resistor (Ry) | 47 kΩ |
The built‑in bias resistors are 47 kΩ (Ry = Re = 47 kΩ).
Yes, the devices are lead‑free and RoHS compliant.
The EMA2 (and UMA2N) can dissipate up to 150 mW total.