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Harwin simplifies miniature EMC screening

Harwin has expanded its popular EMC Shielding range with the introduction of three new RFI Shield Clips, suitable for small and low profile shield cans with wall thicknesses of between 0.15 and 0.20mm. These additions include two clips of only 3.9mm length (S0941-46R and S0951-46R), allowing users to fix smaller sized cans to the PCB using this cost effective method. The third clip (S0961-46R) is specifically designed to provide significantly higher retention forces on the shield can, typically up by 30%, ideal for those users seeking to maximise retention of the shielding can to the board.


Making EMI shielding easier

Supplied taped and reeled, SMT Shield Can Clips are designed to be automatically placed and surface mounted to the PCB, saving time-consuming, costly and potentially damaging secondary processing operations. The clips provide secure retention of RFI/EMI shield cans, resisting shock and vibration, whilst facilitating easy removal and replacement, making them ideal for adjustment, repair and maintenance purposes.

The complete range now accommodates shield thicknesses from 0.13mm to 1.00mm.

With a reduced footprint and profiles down to 0.8mm height, these versatile clips provide a highly cost effective method for securing shield cans and bus bars to a PCB substrate. Auto placement of the clips allows post-assembly soldering and desoldering operations to be eliminated, and leads to significant reduction in PCB damage caused by local soldering operations. The shield can style which matches these clips is a simple five sided box design, rather than the more costly fence-and-cover types specified by some competitors.

Paul Gillam | Product Manager


Applications are found in many markets, ranging from Consumer Electronics through to the Industrial, Instrumentation and Control Systems environments. Essentially, SMT Shield Can Clips suit any market that either uses RF devices or requires protection from interference. Typical examples may be found in radio systems, wireless equipment and consumer electronics, where low cost, effective can-retention needs to be combined with good shielding performance.