STMICROELECTRONICS BDX33C NPN Darlington Power Transistor TO-220

The STMICROELECTRONICS BDX33C is a high-performance NPN complementary silicon power Darlington transistor, engineered using advanced built-in epitaxial planar technology. This robust component is specifically designed to excel in demanding power linear and switching applications, offering exceptional reliability and efficiency for a wide range of electronic circuits.

As the complementary pair to the BDX34C, it forms an integral part of symmetrical amplifier designs. The transistor features a high DC current gain (hFE) of 750, allowing for effective control of high collector currents with a relatively small base current of just 0.25A. Its substantial power handling capability, with a dissipation rating of 70W and a collector-emitter voltage of 100V, makes it suitable for driving motors, relays, and audio output stages.

Housed in the industry-standard TO-220 package, the BDX33C ensures excellent thermal performance and ease of mounting via its through-hole design. The package includes three pins for straightforward circuit integration. With a maximum operating temperature of 150°C, this transistor is built to withstand rigorous operating conditions in both commercial and industrial environments.

Key Applications

• Audio Systems: Ideal for power amplifier output stages and driver circuits.
• Industrial Control: Suitable for motor drivers, solenoid drivers, and high-current switching modules.
• Power Supplies: Can be used in linear regulator pass elements and switching power supply circuits.

With its combination of high current gain, substantial power rating, and proven reliability, the STMICROELECTRONICS BDX33C is a versatile and dependable choice for engineers and hobbyists tackling power management challenges.