Adhesive Backed Materials Ltd
WE-FAS 5G & 6G Absorbers
Würth Elektronik WE-FAS 5G/6G Flexible Absorber Sheets
As 5G networks continue to roll out globally and 6G development accelerates, managing electromagnetic interference (EMI) within densely packed electronic assemblies has never been more critical.
The Würth Elektronik WE-FAS 5G/6G Flexible Absorber Sheet family provides a reliable, application-ready solution for engineers designing wireless communications equipment, antenna systems, and RF-sensitive electronics.
The WE-FAS 5G & 6G range is a self-adhesive, flexible EMI absorber sheet constructed from a special flame-retardant rubber compounded with metal powder.
This combination delivers strong magnetic permeability characteristics across the 5G and 6G frequency spectrum, effectively absorbing unwanted electromagnetic energy and preventing it from disrupting sensitive circuitry.
The material comes with a factory-applied single-sided adhesive layer covered by a removable PET release liner, making it clean and straightforward to install in production assemblies.
The range spans eight thicknesses — from 0.5 mm up to 4.0 mm — allowing engineers to select the optimal absorption depth for their specific frequency and space constraints:
Typical applications
The WE-FAS 5G/6G Flexible Absorber Sheet is used wherever unwanted RF energy needs to be attenuated close to the source, particularly in the frequency bands associated with 5G and emerging 6G communications. Typical applications include:
5G & 6G Infrastructure and Devices
Placed within base station modules, small cells, and user equipment to suppress internal EMI between RF subsystems and sensitive digital circuitry.
Antenna Isolation
Applied behind or around antenna elements to absorb back-radiation, improving antenna efficiency and reducing interference between closely spaced antenna arrays.
PCB and Module Shielding
Fitted over or between circuit boards and components to prevent cross-talk and radiated emissions from high-frequency processing ICs, power converters, and oscillators.
IoT and Connected Devices
Used in compact wireless devices where space is at a premium and multiple radio technologies (Wi-Fi, Bluetooth, 5G NR) must coexist without mutual interference.
Automotive Radar and Telematics
Suitable for use in automotive electronics operating across the 5G/6G frequency range, providing EMI management within vehicle communication and sensing systems.
Wearables and Consumer Electronics
The thin, flexible format allows the material to conform to tight internal spaces in smartphones, tablets, and wearable devices.
How we convert the WE-FAS 5G/6G Flexible Absorber range
Die-Cutting
Our die-cutting capability is ideal for medium to high volume production runs where a consistent, repeatable shape is required.
Die-cut parts are produced with clean, precise edges and are well-suited to automated pick-and-place assembly processes.
The pre-applied adhesive liner is retained during cutting and can be notched or tabbed to facilitate easy peel-and-stick application on the production line.
CNC Knife Table Cutting
For prototypes, design iterations, low-volume requirements, or complex profiles that would be costly to tool in a die, our CNC knife table offers faster turnaround and great geometric flexibility.
This process can accommodate intricate cutouts, slots, and non-standard outlines without the lead time or tooling investment associated with hard tooling.
Whether you need a simple rectangular pad or a complex multi-feature profile designed to fit a specific PCB layout or enclosure, we can work from your drawings or CAD data to deliver components ready for immediate use in your assembly process.