Smaller, High-Power Harwin Connector Subfamily Benefits from 360° EMC Backshells

Harwin Corporation has announced that its Kona high-power connector sub-series is now available with backshells. Constructed from 6061 aerospace-grade aluminum alloy, this backshell prevents unwanted EMI leakage from the connector/cable assembly into the surrounding system.

Harwin's 8.5mm pitch Kona connectors carry high currents (up to 60A per contact) despite their small size and sleek design. This connector is available in 2, 3 and 4 contact versions. Since their initial release in late 2020, these high-reliability components have found widespread use in mission-critical applications, including new space, electric vehicles (EVs), unmanned aerial vehicles (UAVs), and robotics.

The two-part construction of the Kona backshell allows engineers to easily upgrade their existing cable assemblies with 360° EMC shielding. This capability is especially useful if a device exhibits EMI problems late in the development process, or when new EMI problems are discovered after field-deployed devices have been retrofitted. It also offers board and panel mount connector options for complete shielding.

“In situations where power connectors are located close to DC/DC converters, such as in electric vehicle charging infrastructure, high current transfers can cause waveform distortion that can stress the converter.” Harwin Corporation vice president of products Ryan Smart explains, “By offering an easy-to-assemble backshell shield option, we are now adding a valuable feature to our Kona line that addresses issues like these.”

Kona backshells feature a solid construction that ensures long-term reliability in harsh environments. Its installation requires no special tools and assembly is quick and easy. Additional strain relief on the braided cable helps eliminate the risk of component damage after installation and operation. The backshell is also nickel-plated for extra protection, so it prevents corrosion and oxidation in the field.