STMicroelectronics

BU505

BU505 Description

The BU505, manufactured by STMicroelectronics, is a high-performance NPN single bipolar transistor. It is designed for applications requiring high voltage and power handling capabilities. With an operating temperature of 150°C (TJ), the BU505 can withstand extreme thermal conditions, making it suitable for various industrial and automotive applications. The transistor features a maximum collector current (Ic) of 2.5 A and a collector-emitter breakdown voltage (Vce) of 700 V, ensuring robust performance in high-voltage environments.

BU505 Features

• High Voltage and Power Handling: The BU505 can handle a maximum collector-emitter voltage of 700 V and a maximum power dissipation of 75 W, making it ideal for high-voltage and high-power applications.
• Low Saturation Voltage: The BU505 offers a low Vce saturation voltage of 1V @ 900mA, 2A, which contributes to improved efficiency and reduced power consumption in switching applications.
• Through-Hole Mounting: The BU505 is available in a through-hole package, providing a reliable and secure connection to the PCB, suitable for applications requiring mechanical stability.
• Moisture Sensitivity Level 1: With an MSL of 1, the BU505 is not sensitive to moisture, allowing for flexible handling and storage conditions.
• RoHS Compliant: The BU505 is compliant with the RoHS3 directive, making it suitable for environmentally conscious designs.

BU505 Applications

The BU505 is an excellent choice for various high-voltage and high-power applications, including:

1. Industrial Control Systems: The BU505's high voltage and power handling capabilities make it suitable for use in motor control and power conversion circuits in industrial equipment.
2. Automotive Applications: The BU505 can be used in automotive power electronics, such as ignition systems and power management circuits, due to its ability to withstand high voltage and temperature.
3. Power Amplifiers: The BU505's high current and power ratings make it an ideal choice for power amplifiers in audio and communication systems.

Conclusion of BU505

The BU505 is a robust and reliable NPN single bipolar transistor, offering high voltage and power handling capabilities, low saturation voltage, and a through-hole mounting option. Its unique features, such as moisture insensitivity and RoHS compliance, make it an excellent choice for a wide range of high-voltage and high-power applications in industrial, automotive, and power electronics fields.