EMC Accessories

EMC accessories encompass the supporting components and ancillary tools used alongside primary EMC test equipment to facilitate complete electromagnetic compatibility testing workflows. These include line impedance stabilization networks (LISNs), current probes, bulk current injection (BCI) clamps, RF absorbers, antenna mounts, test cables, shielding enclosures, and calibration accessories. Together, these components enable accurate, repeatable measurements in both accredited test facilities and in-house pre-compliance test setups.

Proper selection of EMC accessories is critical to achieving valid test results. Accessories must be matched to the frequency range, power level, and impedance requirements of the test setup and in many cases must themselves be calibrated or verified against traceable standards to ensure measurement traceability.

Typical Applications

LISNs for conducted emissions testing on mains-powered equipment per CISPR standards
Current probes and BCI clamps for conducted immunity testing on cables and wire harnesses
Antenna calibration accessories and antenna masts for radiated emissions test sites
RF shielding and ferrite absorbers for reducing ambient interference in test environments
Calibration and verification accessories for EMC test receivers and spectrum analyzers

Popular Brands

ETS-Lindgren, Schwarzbeck, and Com-Power are recognized suppliers of antennas and LISNs for accredited EMC testing. Fischer Custom Communications and Tekbox offer conducted immunity accessories including BCI clamps and current injection transformers. Laird Technologies and TDK provide ferrite and absorber materials commonly used in test chamber construction and cable management.