I faced with a problem of checking ferrite bead with parameters:
The measurements for two reels of this component have difference in Resistance and inductance:
Reel 1: Resistance: 170 mOhm, Inductance: 2.5 uH (10kHz)
Reel 2: Resistance: 460 mOhm, Inductance: 9.9 uH (10kHz)
Can You assist with next questions:
- Why there are such difference in Resistance and Inductance between two components from different reels? Does this difference matter?
- Why in spec don’t specified inductance?
- Why on Characteristic Curve no value of impedance 1000 Ohm? Because I guess that curve for Z should be with Impedance value near 1000 Ohm.