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The impedance is given by the mathematical equation: Z = √(R²+ (XL - Xc)² ) where XL and XC are defined by XL = 2πƒL and Xc = 1/(2πƒC); XL is the inductive reactance in Ω, Xc is the capacitive reactance in Ω, R is the DC resistance in Ω, Z is the impedance in Ω, ƒ is the frequency, L is the Inductance, and C is the capacitance. In this case R is the DC resistance of the signal going though the relay; XL is the inductive reactance generated from the inductance in the signal path; and Xc is the capacitive reactance generated from the capacitance which is made up of the physical characteristics of the reed blades and the shield running down the internal length of the relay.
PTM Published on: 2012-07-23
