HCTSM80101AAL-E is a high-clearance and creepage distance isolation transformer designed for automotive-grade power supply applications, featuring a toroid core for high coupling and low radiation. The transformer provides reinforced insulation rated for 800 Vrms and 1000 Vpeak working voltage, with a primary inductance of 250 µH at 100 kHz and 1 V, and a leakage inductance of 0.8 µH maximum. It operates over a temperature range of -40°C to +125°C with a rated current of 350 mA AC, and meets AEC-Q200 compliance, RoHS requirements, and UL 62368-1 recognition. The device is ideal for isolation power supplies using TI SN6501, SN6505B, and Nexperia NXF6501-Q100 controllers, offering high reliability and safety in automotive and industrial power conversion systems.