2SD1949/2SD1484K is a medium power transistor with 50V and 0.5A ratings. Its main features are high current and low saturation voltage.
This datasheet describes the ROHM medium‑power transistors 2SD1949 and 2SD1484K (SOT‑323 and SOT‑346 packages). It lists key features such as high current capability and low saturation voltage, and gives physical dimensions for the devices.
Electrical specifications include collector‑base, collector‑emitter, and emitter‑base voltage limits, maximum collector current, power dissipation, and junction temperature. The document also provides characteristic curves, packaging information, and legal notices regarding use and distribution.
| Collector‑base voltage (V CBO) | 50 V |
|---|---|
| Collector‑emitter voltage (V CEO) | 50 V |
| Emitter‑base voltage (V EBO) | 5 V |
| Collector current (I C) | 0.5 A |
| Power dissipation (P D) | 0.2 W |
| Maximum junction temperature (T J) | 150 °C |
| Storage temperature range (T S) | 55 to +150 °C |
The maximum collector‑base voltage is 50 V.
They should be stored between 55 °C and +150 °C.