+E12 denotes a [Preferred Number](/wiki/preferred-number) series, offering 12 standard values within each decade. This set is fundamental in [Electronics](/wiki/electronics) for components like resistors, ensuring a practical range of choices with a typical 10% tolerance.
+## See also
+- [E-series](/wiki/e-series)
+- [Resistor](/wiki/resistor)
+- [Capacitor](/wiki/capacitor)
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