The SM91072AL-E is an AEC-Q200 compliant 10/100 Base-T transformer designed for Ethernet applications. It meets IEEE 802.3u standards and features a turns ratio of 1:1 (±2%) for both transmit and receive channels, with a minimum Open Circuit Inductance (OCL) of 350 µH under an 8 mA DC bias. The device offers a low insertion loss of -1.1 dB maximum from 1-100 MHz and provides high isolation rated at 1500 Vrms. Due to its expanded operating temperature range of -40 to +125 °C and AEC-Q200 compliance, this transformer is well-suited for automotive and industrial applications requiring robust network connectivity.