BCX19 is a NPN medium power transistor from Fairchild Semiconductor Corporation. It is suitable for general purpose amplifiers.
The BCX19 is an NPN medium‑power transistor intended for general‑purpose amplifier applications. The document provides absolute maximum ratings, electrical characteristics, thermal data and mechanical dimensions for the device housed in an SOT‑23 package.
Key parameters include collector‑emitter voltage, collector current, gain, and thermal resistance. Package drawings and dimensions are supplied, along with legal notices and usage restrictions for life‑support systems.
| Collector‑Emitter Voltage (VCEO) | 45 V |
|---|---|
| Collector‑Base Voltage (VCBO) | 50 V |
| Emitter‑Base Voltage (VEB) | 5.0 V |
| Continuous Collector Current (IC) | 500 mA |
| Total Device Dissipation (PD) | 300 mW |
| Derating above 25 °C | 24 mW/°C |
| Thermal Resistance, Junction‑to‑Ambient (RθJA) | 4.17 °C·W |
The BCX19 can withstand up to 45 V between collector and emitter.
The device is rated for a continuous collector current of 500 mA.
No, Fairchild does not authorize the BCX19 for use as a critical component in life‑support devices without written approval.