E96

E96 is a standardized series of nominal values used for electronic components, most notably resistors. It is part of the international E-series of preferred numbers defined by the IEC standard IEC 60063. The E96 series provides 96 distinct values per decade, offering finer granularity than the earlier E24 and other coarser series. This helps designers select resistor and other component values that more closely match desired specifications while maintaining interchangeability across manufacturers.

The values in the E96 series are arranged logarithmically so that each successive value is approximately 1.024 times the previous one, yielding about a 2.4% step between adjacent values. Within each decade, the set runs from about 1.0 up to just under 10, and the same pattern is applied across higher decades by multiplying by powers of ten. The exact nominal values are defined in the IEC standard and are used to determine hardware components in catalogues and schematics.

Applications and implications: the E96 series is widely used for resistors, especially when tighter tolerances (such as 1%) are desired. It also influences values used for capacitors and other components in some catalogs, aiding uniformity and ease of stocking. By adopting a standardized value set, manufacturers can ensure better interchangeability, easier automation, and predictable production planning.

Limitations and considerations: because the values are nominal, real components have tolerances that cause deviations from the printed values. Designers account for this by selecting appropriate series and tolerances, or by trimming, to meet electrical performance goals. The E96 family remains a common choice for precision and reliability in electronic design.