BC638 General Purpose PNP Transistor – TO-92 Package

The BC638 is a general-purpose PNP bipolar junction transistor (BJT) designed for medium-current amplification and switching applications. With its robust electrical characteristics and compact TO-92 package, it is ideal for relay drivers, power control circuits, audio amplifiers, LED drivers, and various industrial and consumer electronic applications.

Key Features -

• General-purpose PNP transistor

• Suitable for amplification and switching applications

• Medium to high collector current capability

• Compact TO-92 through-hole package

• Reliable and stable electrical performance

• Low saturation voltage characteristics

• Easy PCB mounting and integration

Specifications -

• Product type - Bipolar Junction Transistor (BJT)

• Part number - BC638

• Transistor polarity - PNP

• Technology - Silicon

• Package type - TO-92

• Mounting type - Through Hole

• Number of pins - 3

• Collector-Emitter Voltage (VCEO) - 60V

• Collector-Base Voltage (VCBO) - 80V

• Emitter-Base Voltage (VEBO) - 5V

• Maximum Collector Current (IC) - 1A

• Power Dissipation - 625mW

• Transition Frequency (fT) - 100MHz

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

Applications -

• Relay and solenoid driver circuits

• LED driver applications

• Audio amplifier stages

• Power switching circuits

• Industrial control equipment

• Battery-powered electronic devices

• Educational and DIY electronics projects