STMicroelectronics

BUT30V

BUT30V Description

The BUT30V from STMicroelectronics is a high-power NPN bipolar junction transistor (BJT) designed for demanding industrial and automotive applications. With a collector-emitter voltage (Vce) rating of 125V and a maximum collector current (Ic) of 100A, this device is engineered to handle high-current switching and amplification tasks efficiently. Packaged in the robust ISOTOP chassis-mount case, the BUT30V ensures excellent thermal dissipation, supporting a maximum power dissipation of 250W and an operating junction temperature (TJ) of up to 150°C.

BUT30V Features

• High Current Handling: Supports 100A continuous collector current, making it ideal for high-power applications.
• Low Saturation Voltage: 900mV @ 10A base current and 100A collector current, ensuring minimal power loss in switching applications.
• High DC Current Gain (hFE): 27 @ 100A, 5V, providing efficient amplification.
• Robust Packaging: ISOTOP case offers superior thermal performance and mechanical durability.
• Compliance: ROHS3 compliant, REACH unaffected, and EAR99 classification for global usability.
• Reliability: Moisture Sensitivity Level (MSL) 1 (Unlimited) ensures long-term storage stability.

BUT30V Applications

The BUT30V excels in high-power environments, including:

• Motor Control: Suitable for driving large DC motors in industrial automation.
• Power Supplies: Efficiently manages high-current switching in regulated power systems.
• Automotive Systems: Ideal for ignition systems, electronic fuel injection, and battery management.
• Welding Equipment: Handles high-current pulses in welding inverters.
• UPS/Inverters: Ensures reliable performance in backup power systems.

Conclusion of BUT30V

The BUT30V stands out as a high-performance NPN transistor for applications requiring high current, low saturation voltage, and robust thermal management. Its ISOTOP packaging, compliance with environmental standards, and wide operating temperature range make it a preferred choice for industrial and automotive engineers. While marked as obsolete, its proven reliability ensures continued suitability for legacy designs and high-power systems where durability and efficiency are critical.