Contact Us
Contact Us Stock Check

How do you calculate the characteristic impedance for a reed relay, when the reed switch is a flat reed contact?

A reed relay designed to carry high frequencies will generally use a coaxial design approach.  With this in mind the formula to calculate the characteristic impedance is the following: Z = 60/(√(e)) ln((D)/A) where Z is the characteristic impedance, √(e) is the square root of the dielectric constant, ln – is the natural logarithm, D is the diameter of the shield, and A is the cross sectional of the reed blade.

Posted in

SUBSCRIBE TO OUR NEWSLETTER

We Will Use The Email Address You Provide To Send You Marketing And Promotional Materials.

Tradeshows & Events

IEEE EMC Society – Common Mode Choke Design Considerations
Time: April 29, 2021 (6:30PM - 9:00PM EST)
Place: Virtual & In-Person (Broken Barrel Tavern, Palm Bay, Florida)
For More Details, Click Here.

electronica China 2021
Time: April 14-16, 2021
Place: Shanghai New International Expo Center
Booth No.: Booth 2550
For More Details, Click Here.

Follow Us

Focused. Leadership

Video
Download Table
Products compare