R6H Series Axial Wide Band Choke Coil Ferrite Bead Ni-Zn Ferrite for PC Board EMI/RFI Suppression

Q: How to choose the number of turns for the R6H series bead?

A: Higher turns provide higher impedance in the low-frequency range and stronger EMI suppression, but occupy more PCB space. 1.5-2.0 turns are suitable for general EMI suppression. 2.5-3.0 turns are suitable for applications requiring stronger low-frequency suppression. Selection should be based on the interference frequency and suppression requirements.

Q: What are the advantages of nickel-zinc (Ni-Zn) ferrite compared to manganese-zinc (Mn-Zn)?

A: Nickel-zinc ferrite offers higher resistivity and better broadband characteristics. It has lower core loss in the high-frequency range (MHz-GHz), making it especially suitable for high-frequency EMI/RFI suppression applications. Manganese-zinc ferrite has better low-frequency characteristics but higher high-frequency loss.

Q: What are the advantages of the axial through-hole package?

A: The axial through-hole package is suitable for wave soldering processes. The leads extend from both ends along the axis, allowing easy horizontal mounting and automated insertion. It is suitable for traditional through-hole PC board designs and small to medium volume production.

Q: How does the R6H series help products meet FCC Part 12 Class B requirements?

A: The R6H series beads effectively suppress high-frequency radiation noise on PC boards and cables. They reduce radiated emission levels in the 30MHz-1GHz band, helping products meet the radiated emission limits of FCC Part 12 Class B.