BC558 General Purpose PNP Transistor – TO-92 Package

The BC558 is a general-purpose PNP bipolar junction transistor (BJT) designed for low-noise amplification and switching applications. With its reliable performance, good current gain, and compact TO-92 package, it is widely used in audio amplifiers, signal processing circuits, sensor interfaces, instrumentation equipment, and general-purpose electronic projects.

Key Features -

• General-purpose PNP transistor

• Suitable for amplification and switching applications

• Low-noise silicon transistor design

• Good DC current gain (hFE) characteristics

• Compact TO-92 through-hole package

• Reliable and stable operation

• Easy PCB mounting and integration

Specifications -

• Product type - Bipolar Junction Transistor (BJT)

• Part number - BC558

• Transistor polarity - PNP

• Technology - Silicon

• 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 amplifier circuits

• Signal amplification stages

• Sensor interface circuits

• Switching applications

• Instrumentation equipment

• Consumer electronics

• Educational and DIY electronics projects