Tolerance

The allowable deviation from a specified nominal value in a component or measurement. In electronics, every resistor, capacitor, and inductor is manufactured within a tolerance range, typically ±10% to ±30%. The actual value may differ from the labeled value by that percentage. In PEMF devices, component tolerances directly affect output field strength, pulse timing, and frequency accuracy. A capacitor rated 100uF ±10% may measure anywhere from 90uF to 110uF, shifting resonant frequency and peak Gauss output accordingly.