BCX17 – NXP

Overview

The Nexperia BCX17 is a general-purpose PNP bipolar junction transistor (BJT) designed for switching and amplification tasks in low-power applications. Its critical operational characteristic lies in its moderate gain (hFE) and 80 MHz gain-bandwidth product, making it suitable for signal processing where linearity is paramount. A key design consideration when utilizing the BCX17 is managing its 620 mV collector-emitter saturation voltage (Vce(sat)), which can introduce significant power dissipation in high-current switching scenarios, necessitating careful thermal management or alternative device selection for efficiency-critical designs.

Key Features

• PNP Silicon Bipolar Junction Transistor
• Maximum DC Collector Current (Ic): 500 mA
• Collector-Emitter Voltage (Vceo): 45 V
• Gain Bandwidth Product (fT): 80 MHz
• Collector-Emitter Saturation Voltage (Vce(sat)): 620 mV @ Ic=100mA, Ib=10mA
• Package: SOT-23-3 (3 mm x 1.4 mm x 1 mm)

Applications

The component is engineered for deployment in systems requiring high reliability and performance under specific operating conditions. It provides functional stability across the stated design envelope.

• Low-power signal amplification in audio pre-amplifiers
• General-purpose switching for relay drivers and LED control
• Complementary pair in push-pull audio output stages
• Small-signal switching in battery-powered portable devices