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

Common Mode Choke Design and Material Selection
Time: Now Thru Jan 19, 2023
Place: On-Demand
For More Details, Click Here.

electronica india 2022
Time: September 21.-23. 2022
Place: Bengaluru, India
Booth No.: EH15
For More Details, Click Here.

Sensors Converge 2022
Time: June 27, 2022
Place: San Jose, CA USA
Booth No.: 1118
For More Details, Click Here.

Standex Electronics Job Fair
Time: June 29, 2022
Place: 4150 Thunderbird Lane, Fairfield Ohio, 45014
Booth No.: N/A
For More Details, Click Here.

Follow Us

Focused. Leadership

Video
Download Table
Products compare