Dec 2022: Powell Electronics, the supplier of connectors and more for high-rel applications including defence, aerospace and industrial, is stocking Quell’s EESeal+ EMI filter inserts with improved attenuation and frequency mitigation. The inserts are easily and quickly inserted into standard connectors in seconds without the need for any special tooling or soldering, forming an effective EMI filter and maintaining the environmental seal. Customized samples are available at very short lead times.

The products benefit from Quell’s patented EESeal+ technology which uses EMC filter components embedded into a silicone rubber insert that matches the size, shape and pin configuration of the connector to be filtered. Transient suppressors can also be included. Users can specify which filter elements are required for each pin, allowing for the creation of a completely custom filter insert with widely varying capacitor values, shorts and opens as desired.

The EESeal+ technology benefits from lower contact resistance and lower inductance than standard EESeals due to the improved ground plane. Peak attenuation is around 45-50dB and customers have seen frequency mitigation as high as 100GHz. In addition to EMI filters the EESeal+ filters make it easy to ground pins to the shell such as the coaxial shields in Combo D-Sub connectors as well as ARINC and coaxial circular connections.

For further information please visit:


About Powell Electronics

Powell Electronics is a specialist at high reliability, harsh environment connector design, manufacturing and supply chain. In the USA, Powell has 70,000 square feet of connector manufacturing capabilities at its Swedesboro, NJ facility, which is certified to ISO9001 and AS9100. Powell offers automated engineering solutions and connector ODM services. The company is an authorized, QPL’ed distributor for over 50 military specifications and is ISO9120 certified. This year, Powell Electronics relocated its European operations to new premises in Dublin, Ireland, employing more technical staff to support design-in activities and signing new franchises agreements with Glenair, Harwin, Amphenol Aerospace, Quell, AB Connectors, Lemo, Conesys, Positronic and more. This is enabling Powell to address the broad range of demanding connector applications with products that range from miniature PCB-mount devices to high voltage, high current hi-rel solutions.

Editors contact:

Gary Evans
CEO, Powell Electronics Europe

PR Agency:

Heiko Hespen
BWW Communications