BC640 Transistor (80V, 1A)

Overview

The BC640 is a reliable PNP bipolar junction transistor (BJT) designed for general-purpose switching and amplification. With a collector-emitter voltage of 80V and a collector current of 1A, it provides a solid balance of voltage handling and current capability, making it a versatile choice for a wide range of electronic projects. Whether you are prototyping a new circuit, repairing existing equipment, or building a custom project, the BC640 offers consistent performance and durability.

Key Features

• PNP Transistor: Suitable for complementary circuit designs and applications requiring positive ground.
• High Voltage Rating: 80V collector-emitter voltage (VCEO) allows use in higher voltage circuits.
• Current Capacity: Handles up to 1A continuous collector current, suitable for moderate power loads.
• Low Saturation Voltage: Ensures efficient switching with minimal power loss.
• High Current Gain (hFE): Provides good amplification characteristics for signal processing.
• Through-Hole Package (TO-92): Easy to solder on breadboards and PCBs, ideal for prototyping.

Technical Specifications

• Type: PNP
• Collector-Emitter Voltage (VCEO): 80V
• Collector-Base Voltage (VCBO): 80V
• Emitter-Base Voltage (VEBO): 5V
• Collector Current (IC): 1A
• Power Dissipation (Ptot): 1W
• DC Current Gain (hFE): 40 – 250 (at IC = 500mA)
• Transition Frequency (fT): 100 MHz
• Operating Temperature Range: -55°C to +150°C
• Package: TO-92

Applications & Use Cases

• Switching Circuits: Use as a switch to control relays, LEDs, and small DC motors.
• Amplification: Suitable for audio and signal amplification stages.
• Driver Stages: Can drive other transistors or power devices.
• Power Management: Use in voltage regulators and power supply circuits.
• Educational Projects: Ideal for learning about transistor operation and circuit design.

What's Included

• 1x BC640 PNP Transistor

Compatibility

• Pin Configuration: Standard TO-92 pinout (Emitter, Base, Collector).
• Complementary Pair: Works with BC639 NPN transistor for push-pull amplifier configurations.
• Breadboard Friendly: Fits directly into standard breadboards and solderless prototyping boards.

MOKWN Recommendation

The BC640 is a dependable choice for makers and engineers who need a robust PNP transistor for everyday projects. Its high voltage and current ratings make it versatile, while its TO-92 package ensures easy handling. Whether you're a student, hobbyist, or professional, this transistor is a valuable addition to your component kit. MOKWN recommends stocking up on BC640s for your prototyping needs.