SSTA28 / MMSTA28 is a 1/2 NPN general purpose transistor produced by ROHM, which has the feature BVCES < 80V (Ic=100µA).
The MMSTA28 (also marked SSTA28) is an NPN general‑purpose transistor offered by ROHM. The datasheet lists its key electrical parameters, package dimensions, and recommended operating conditions.
Key specifications include a collector‑base voltage of 80 V, collector‑emitter voltage of 80 V, emitter‑base voltage of 12 V, and a maximum collector current of 0.3 A. The device is supplied in a SOT‑23 package, can dissipate up to 0.2 W, and operates over a wide temperature range from –55 °C to +150 °C.
| Collector‑base voltage (Vcbo) | 80 V |
|---|---|
| Collector‑emitter voltage (Vceo) | 80 V |
| Emitter‑base voltage (Vebo) | 12 V |
| Collector current (Ic) | 0.3 A |
| Power dissipation (Pc) | 0.2 W |
| Junction temperature (Tj) | 150 °C |
| Storage temperature range | -55 °C to +150 °C |
| Transition frequency (fT) | 125‑200 MHz |
The maximum collector‑base voltage is 80 V.
It is supplied in a SOT‑23 (JEDEC SOT‑23) package.
The device can be stored from –55 °C to +150 °C.
The transistor can dissipate up to 0.2 W.