EMA3 / UMA3N / FMA3A are ROHM's integrated digital transistors with built-in bias resistors, with a maximum collector-emitter reverse voltage of -50V and a maximum collector current of -100mA.
The EMA3, UMA3N, and FMA3A are PNP complex digital transistors with built‑in bias resistors, allowing inverter circuits without external resistors. They are offered in SOT‑353 (SC‑88A) packages: EMA3 in EMT5, UMA3N in UMT5, and FMA3A in SMT5.
Key electrical ratings include a collector‑base voltage of –50 V, collector‑emitter voltage of –50 V, emitter‑base voltage of 5 V, and a maximum collector current of 100 mA. Power dissipation is 150 mW for EMA3/UMA3N and 300 mW for FMA3A, with a junction temperature limit of 150 °C and storage range from –55 °C to +150 °C. Detailed package dimensions are listed for each variant.
| Emitter‑base voltage (Vebo) | 5 V |
|---|---|
| Maximum collector current | 100 mA |
| Power dissipation (EMA3/UMA3N) | 150 mW |
| Power dissipation (FMA3A) | 300 mW |
| Junction temperature (Tj) | 150 °C |
| Storage temperature range | –55 °C to +150 °C |
| Package (EMA3) | EMT5 (SOT‑353) |
| Package (UMA3N) | UMT5 (SOT‑353) |
| Package (FMA3A) | SMT5 (SOT‑353) |
Yes, they are lead‑free and RoHS compliant.
The maximum collector current is 100 mA.