CISPR

The Comité International Spécial des Perturbations Radioélectriques (CISPR; English: International Special Committee on Radio Interference) was founded in 1934 to set standards for controlling electromagnetic interference in electrical and electronic devices, and is a part of the International Electrotechnical Commission (IEC).

CISPR is composed of six subcommittees, each responsible for a different area, defined as:

CISPR's standards cover the measurement of radiated and conducted interference. EMI test results can vary widely according to the exact layout of the equipment and cabling. CISPR set various standards for the test layout, to help improve the reliability of comparison between tests. These standards cover cable lengths, measurement device configuration and grounding schemes. The standards also address immunity from external interference.

When purchasing equipment, a company or organization can require compliance to one or more CISPR standards from the supplier.

CISPR have published over thirty standards to date. Some of the more important include:

Depending on the market, CISPR's standards are a benchmark or goal for suppliers to reach either to meet OEM requirements or as a product feature. For example, in the automotive electronic market, CISPR 25 is an increasingly popular benchmark and requirement for body electronics. Electronic suppliers have become increasingly focused on proving that their devices can meet CISPR 25, for example Texas Instruments has been releasing reference designs that prove one or more devices can meet the standard if used in a design correctly.

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