BC178 Small Signal PNP Transistor – TO-18 Metal Can Package

The BC178 is a low-noise small-signal PNP bipolar junction transistor (BJT) designed for amplification and switching applications in analog and low-power electronic circuits. Encased in a durable TO-18 metal can package, it provides excellent thermal stability, reliable performance, and high gain characteristics, making it suitable for audio equipment, instrumentation, communication systems, and signal processing applications.

Key Features -

• Small-signal PNP transistor

• Low-noise silicon transistor design

• Rugged TO-18 metal can package

• Suitable for amplification and switching applications

• High gain and stable performance

• Excellent thermal characteristics

• Reliable operation in analog circuits

Specifications -

• Product type - Bipolar Junction Transistor (BJT)

• Part number - BC178

• Transistor polarity - PNP

• Technology - Silicon

• Package type - TO-18 Metal Can

• Mounting type - Through Hole

• Number of terminals - 3

• Collector-Emitter Voltage (VCEO) - 25V

• Collector-Base Voltage (VCBO) - 30V

• Emitter-Base Voltage (VEBO) - 5V

• Maximum Collector Current (IC) - 100mA

• Power Dissipation - 300mW

• Transition Frequency (fT) - 150MHz

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

Applications -

• Audio preamplifiers

• Signal amplification circuits

• Communication equipment

• Instrumentation systems

• Small-signal switching applications

• Analog electronic circuits

• Educational and DIY electronics projects