Editing Engineering tolerance (section)

== Electrical component tolerance ==
An electrical specification might call for a [[resistor]] with a nominal value of 100 Ω ([[Ohm (unit)|ohms]]), but will also state a tolerance such as "±1%". This means that any resistor with a value in the range 99–101{{nbsp}}Ω is acceptable. For critical components, one might specify that the actual resistance must remain within tolerance within a specified temperature range, over a specified lifetime, and so on.

Many commercially available [[resistor]]s and [[capacitor]]s of standard types, and some small [[inductor]]s, are often marked with [[Electronic color code|coloured bands]] to indicate their value and the tolerance. High-precision components of non-standard values may have numerical information printed on them.

Low tolerance means only a small deviation from the components given value, when new, under normal operating conditions and at room temperature. Higher tolerance means the component will have a wider range of possible values.