The BU941ZPFI from STMicroelectronics is a high-performance NPN Darlington bipolar transistor designed for demanding automotive and industrial applications. Encased in a robust TO-3PF package, this device offers a 350V collector-emitter breakdown voltage and a maximum collector current of 15A, making it suitable for high-power switching and amplification tasks. With an operating junction temperature of up to 175°C, it excels in harsh environments where thermal stability is critical. The transistor is RoHS3 compliant and REACH unaffected, ensuring adherence to environmental regulations. Its low collector cutoff current (100µA max) and high DC current gain (hFE ≥ 300 @ 5A, 10V) enhance efficiency and reliability in circuit designs.
The BU941ZPFI stands out as a high-reliability, high-power Darlington transistor tailored for automotive and industrial applications. Its exceptional thermal performance, high voltage/current ratings, and low saturation losses make it superior to standard bipolar transistors in efficiency-critical designs. Whether used in automotive power modules, industrial inverters, or high-temperature systems, this device delivers consistent performance under extreme conditions. STMicroelectronics' commitment to quality ensures long-term durability, making it a preferred choice for engineers prioritizing robustness and compliance.
Download datasheets and manufacturer documentation for BU941ZPFI