The 149646-HX2019FNLT is a pulse transformer designed for use in transformers in pulse applications. It is a LAN 10/100 Base-T transformer with an inductance of 350µH. The package size is 0.500" L x 0.358" W (12.70mm x 9.09mm), and it is mounted using surface mount technology. The operating temperature range is -40°C to 85°C, making it suitable for a wide range of environments. With a standard package of 600 pcs, this pulse transformer is widely used in various electronic devices. It is an active product in the market, and its quality is ensured by Pulse, a reputable manufacturer. The transformer is unaffected by REACH regulations and has an ECCN classification of EAR99. It is commonly used in applications such as LAN communication systems and power supplies.