BC559 General Purpose PNP Transistor – TO-92 Package

The BC559 is a low-noise general-purpose PNP bipolar junction transistor (BJT) designed for signal amplification and switching applications. Housed in a compact TO-92 package, it offers excellent gain characteristics, low noise performance, and reliable operation, making it ideal for audio equipment, signal processing circuits, instrumentation, and general-purpose electronic designs.

Key Features -

• General-purpose PNP transistor

• Low-noise silicon transistor design

• Suitable for amplification and switching applications

• High DC current gain (hFE)

• Compact TO-92 through-hole package

• Reliable and stable electrical performance

• Ideal for audio and signal processing circuits

Specifications -

• Product type - Bipolar Junction Transistor (BJT)

• Part number - BC559

• Transistor polarity - PNP

• Package type - TO-92

• Mounting type - Through Hole

• Number of pins - 3

• Collector-Emitter Voltage (VCEO) - 30V

• Collector-Base Voltage (VCBO) - 30V

• Emitter-Base Voltage (VEBO) - 5V

• Maximum Collector Current (IC) - 100mA

• Power Dissipation - 500mW

• Transition Frequency (fT) - 150MHz

• Operating Temperature Range - -55°C to +150°C

Applications -

• Audio preamplifiers and amplifiers

• Low-noise signal amplification circuits

• Switching applications

• Sensor interface circuits

• Instrumentation equipment

• Consumer electronics

• Educational and DIY electronics projects