EMI shielding products simplify design & maintenance

EZ-BoardWare Shield Cans are simply pressed onto pre-positioned surface mount EZ-Shield Clips, forming a Faraday cage around sensitive ICs and electronic circuitry. This saves expensive, labour-intensive secondary assembly and facilitates rework. A range of can sizes and clips are available, and attenuation performance up to 24dB can be achieved, depending on frequency and configuration.

The cans have a simple, five-sided box design, which is mechanically robust and more cost-effective than fence and cover types.  Used with EZ-BoardWare Shield Can Clips, EZ-Shield Cans resist vibration and remain securely retained on the PCB. As well as simplifying maintenance and adjustment, auto placement of the EZ-BoardWare Clips eliminates post-assembly soldering and desoldering, significantly reducing PCB damage caused by local overheating on the board.

In order to facilitate speedy design, Harwin offers its EZ-BoardWare EMI/RFI protection screening products in kit form, enabling designers to rapidly construct PCB cans at minimal cost for development purposes. The low cost kits comprise two 80x60x0.3mm Nickel Silver sheets that are pre-scribed on a 5mm grid to allowing easy cutting and forming, enabling the user to produce a shield can of the required dimensions. EZ-Shield Can Clips, which hold cans securely in place, are also included.

Completing Harwin’s EZ-BoardWare EMI/RFI product range, EZ-Spring Contacts, also known as Grounding / RFI contacts, Spring or Shield Fingers, can be assembled to PCBs and used as grounding or shielding contacts or even for general electrical connection between PCBs. When mounted in a row, the contacts provide an EMI/RFI shielding connection for metal doors or other cabinet enclosures. The contact design ensures positive contact with the mating surface, and is tolerant to both wiping and sliding action. EZ-Spring Contacts are available in 15 different sizes, ranging from 1.7 to 7.25mm free height (1.20 to 6.35mm minimum working height) and as multi-directional contacts, suitable for both vertical and horizontal contact actions.

“Now, a can may be created easily and effectively in minutes, with no special tools or experience required. We believe that the kits will save costs and time during development, and help to enable that an optimised EMI/RFI solution is found,” commented Paul Gillam, Product Manager, Harwin. “We believe that with the range of EMC solutions that we have available, we can help both the design engineer and the production engineer to realise a better performing, more cost-effective answer to the EMI/RFI challenge.”