BC556 Epitaxial Silicon PNP Transistor – TO-92 Package

The BC556 is a general-purpose epitaxial silicon PNP bipolar junction transistor (BJT) designed for low-noise amplification, signal processing, and switching applications. Featuring a high collector-emitter voltage rating and housed in a compact TO-92 package, it is widely used in audio circuits, control systems, instrumentation, and general-purpose electronic designs.

Key Features -

• Epitaxial silicon PNP transistor

• High voltage capability for general-purpose applications

• Suitable for switching and amplification circuits

• Low-noise performance

• Compact TO-92 through-hole package

• Reliable and stable electrical characteristics

• Easy integration into PCB designs

Specifications -

• Product type - Bipolar Junction Transistor (BJT)

• Part number - BC556

• Transistor polarity - PNP

• Technology - Epitaxial Silicon

• Package type - TO-92

• Mounting type - Through Hole

• Number of pins - 3

• Collector-Emitter Voltage (VCEO) - 65V

• Collector-Base Voltage (VCBO) - 80V

• 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 -

• Signal amplification circuits

• Audio preamplifiers and amplifiers

• Switching circuits

• Sensor interface circuits

• Industrial control systems

• Instrumentation equipment

• Educational and DIY electronics projects