This is a high-current toroidal inductor with a nominal inductance of 1000 µH and a typical inductance of 378.9 µH, featuring a 15% tolerance. It operates at a frequency of 1 kHz, supports a maximum current of 3.5 A, and has a DC resistance of 137 milliohms. Manufactured by RDL, it is suitable for power applications requiring robust inductance and current handling.