Calculate the impedance of ferrite beads online

August 23, 2016 // By Julien Happich
Vishay Intertechnology has introduced what the company claims to be the industry's first online ferrite bead impedance calculator.

Designed as a time-saving online tool, the calculator makes it simple to find the impedance of Vishay's most popular surface-mount ferrite beads at any given frequency and calculate the effective impedance at the stated frequency with DC bias applied.

To help designers easily incorporate the company's surface-mount ferrite beads into any application for filtering, the new calculator eliminates the need to determine impedance information from the Z vs. frequency graph in product datasheets. As applied DC lowers the effective impedance of the ferrite bead due to saturation, the new tool also removes the guesswork in determining how much impedance is reduced. This helps designers achieve the desired circuit impedance without having to experiment with several different values. The new ferrite bead impedance calculator can be used with Vishay's surface-mount ferrite beads in the 0603, 0805, and 1206 case sizes.

The calculator can be found at

Vishay Intertechnology at