Standard Resistors

Oil resistors provide better stability and temperature coefficients over air resistors and provide the highest precision and stability in resistance measurements.

Our high-accuracy primary standard (model 9331R) air resistors are used for precision resistance calibrations for values from 0.1 Ω to 10 MΩ with drifts up to 2.5 ppm per year drift.

Our high-accuracy working standard air resistors are used for precision resistance calibrations for values from 1 mΩ to 100 MΩ. MI’s 9331’s are small, light, and rugged resistance standards that do not require a temperature-controlled oil or air bath for their specification range.

The 9331G series of high accuracy resistance standards are available in standard values from 10 M to 100 T Ohms and custom values available at any resistance therein.