The SM91534AL-E is an automotive-grade Battery Management System (BMS) transformer designed for robust performance in high-voltage environments. It supports a working voltage of up to 1500 VDC and provides high-potential isolation rated at 6400 VDC. Key electrical characteristics include a minimum open-circuit inductance of 150 µH, a 1:1 turns ratio, and a maximum DC resistance of 0.5 Ω on the transformer side. Developed for compatibility with popular BMS ICs like the NXP 33771C and Analog Devices LTC68xx series, this transformer is ideal for battery management in electric vehicles and energy storage systems.