This is an RF choke with a bobbin core, designed to provide high impedance at radio frequencies. It has a inductance of 1 millihenry (mH) with a toleranced variation of 10%. The choke operates effectively at a frequency of 252 kHz and features a high Q-factor of 20, indicating low energy loss. Made with ferrite material, it can handle a current of 510 mA, with a DC resistance (DCR) of approximately 2.9 ohms. Suitable for RF filtering and impedance matching applications.