BLF03JD421GZED Package Type, BLF03JD421GZED | Murata Ferrite Bead (Chip Ferrite Bead), 0.6 x 0.3 x 0.4mm (0201), 111Ω impedance at 25 MHz, 247Ω impedance at 100 MHz,

The Murata BLF03JD series chip ferrite bead is designed to function nearly as a resistor at noise frequencies, which greatly reduces the possibility of resonance and leaves signal wave forms undistorted. It is effective in circuits without stable ground lines. It can be used in high current circuits due to its low DC resistance. It is designed to have high impedance at 700MHz to 1GHz which is suitable for immunity noise suppression for GSM band.
Nickel barrier structure of the external electrodes provides excellent solder heat resistanceOperating temperature range from -55 °C to 125 °CDoes not need a connection to ground