QST3 transistor is a low frequency amplifier driver with large current and low saturation voltage.
The QST3 is a general‑purpose amplification transistor designed for low‑frequency amplifier and driver applications. It offers a large collector current capability and low collector‑saturation voltage, making it suitable for a variety of electronic circuits.
The datasheet lists absolute maximum ratings such as a collector current of -5 A and a typical VCE(sat) of -250 mV at IC = -2 A/IB = -40 mA, along with hFE ranging from 270 to 680. Package dimensions are 1.6 × 2.8 × 0.4 mm, and electrical characteristic curves are provided for design reference. This manual is written in Chinese.
| Collector‑emitter saturation voltage (VCE(sat)) | -250 mV (typical at IC = -2 A, IB = -40 mA) |
|---|---|
| DC current gain (hFE) | 270 – 680 |
| Package dimensions (mm) | 1.6 × 2.8 × 0.4 |
Typical VCE(sat) is -250 mV when IC = -2 A and IB = -40 mA.
The DC current gain ranges from 270 to 680.