QSX4 Transistors is a low frequency amplifier produced by ROHM. The maximum collector current is 1.5A and the collector-emitter saturation voltage is 370mV.
The QSX4 is a low‑frequency amplifier transistor offered by ROHM. The datasheet lists its key features, such as a large collector current capability and a low collector‑emitter saturation voltage (max 370 mV at IC=1.5 A, IB=75 mA).
Technical sections cover absolute maximum ratings, detailed electrical characteristics, packaging specifications, and characteristic curves. An appendix notes usage restrictions and export control information. This manual is written in Chinese.
| Collector‑Base Voltage (VCBO) | 30 V |
|---|---|
| Collector‑Emitter Voltage (VCEO) | 30 V |
| Emitter‑Base Voltage (VEBO) | 6 V |
| Collector Current (IC) | 1.5 A |
| DC Current Gain (hFE) | 270‑680 |
| Transition Frequency (fT) | 280 MHz |
The QSX4 can handle a collector current of up to 1.5 A.
The maximum VCE(sat) is 370 mV at IC=1.5 A and IB=75 mA.