• Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Resource icon

Common Resistor and Capacitor Values 2011-12-30

To manufacture resistors (or other components like capacitors) of every possible value would be impractical, instead they are made in a range of ‘Common Values’. The standard was created by Electronic Industries Association (EIA) and is often referred to as the “E” series. This series is broken into different tolerances:

E3 – 50% tolerance (no longer used)
E6 – 20% tolerance
E12 – 10% tolerance
E24 – 5% tolerance
E48 – 2% tolerance
E96 – 1% tolerance
E192 – 0.5, 0.25, 0.1% and higher tolerances

The number following the "E" specifies the number of logarithmic steps per decade and each step is the difference by tolerance (%). Below is the complete list of values for series E6 through to E192 (which are still being manufactured):

  • Like
Reactions: spec
First release
Last update
0.00 star(s) 0 ratings

More resources from ElectroMaster

Latest threads

EE World Online Articles