2SA0794 (2SA794), 2SA0794A (2SA794A) are silicon PNP epitaxial planar type transistors from Toshiba. They are suitable for low-frequency output driver circuits. The devices have high collector-emitter open circuit voltage (VCEO), which makes them suitable for low-frequency 40W to 100W output power amplifier driver stages. 2SA0794A has a VCEO of -120V, which is 20V higher than that of 2SA0794. 2SA0794, 2SA0794A are packaged in TO-126B, which does not require an insulation plate to be installed on the heat sink.
The 2SA0794 (and 2SA0794A) are silicon PNP epitaxial planar transistors intended for low‑frequency driver stages up to 40‑100 W. They are complementary to the 2SC1567 series and are supplied in a TO‑126B package that can be mounted directly to a heat sink.
The datasheet lists absolute maximum ratings such as a 100 V collector‑emitter voltage (120 V for the A version), 0.5 A collector current, 1.2 W power dissipation, and a transition frequency of about 200 MHz. Legal and export notices are also included.
| Collector current (IC) | 0.5 A |
|---|---|
| Power dissipation (PD) | 1.2 W |
| Junction temperature (Tj) | 150 °C |
| Package | TO‑126B |
It is supplied in a TO‑126B package that can be mounted directly to a heat sink.
The transistor can handle up to 0.5 A of collector current.