The BDX87C is a silicon PNP Darlington power transistor manufactured by Seme LAB. It's designed for high-gain amplification and switching applications. The Darlington configuration provides a high current gain, making it suitable for driving high-current loads with low input current.

Applications

• Motor Control: Used in motor control circuits for controlling the speed and direction of DC motors.
• Power Amplifiers: Employed in audio power amplifiers for amplifying audio signals.
• Switching Regulators: Utilized in switching regulators for voltage regulation and control.
• Relay Drivers: Used as a relay driver to switch relays with low input current.
• Solenoid Drivers: Applied as a solenoid driver to control solenoids in various applications.

Features

• High Current Gain: Provides high current gain for driving high-current loads.
• Low Saturation Voltage: Ensures efficient switching with minimal power loss.
• High Collector Current: Supports high current flow for driving high power loads.
• High Power Dissipation: Capable of dissipating significant power without overheating.
• PNP Transistor: PNP polarity for specific circuit configurations.

Benefits

• Efficient Power Switching: Minimizes power losses in switching applications, improving energy efficiency.
• Reliable Performance: Delivers stable and consistent performance under demanding operating conditions.
• High Power Handling: Suitable for driving high power loads without failure.
• Simplified Circuit Design: Reduces the need for complex drive circuits.
• Cost-Effective Solution: Offers a balance of performance and affordability.

Additional Details

The BDX87C is typically housed in a TO-220 or similar package for efficient heat dissipation. It features a collector-emitter voltage (VCEO) rating of -100V and a continuous collector current (IC) rating of -10A. The transistor also boasts a high DC current gain (hFE) of typically 750. As an END-OF-LIFE product, sourcing it might require looking for alternative replacements.