Like death and taxes, EMI is inevitable – at least in modern high-frequency board designs. And VME is especially prone to EMI because of multi-gigabit signals and processors that clock higher than 1 GHz. So shielding certain components is prudent … not sexy, but smart. The 80 Series CBS from Leader Tech is a basic EMI shield that does what it’s supposed to do: shield large-profile components up to 60 dB.
What sets the 80 Series apart is the customization its vendor is willing to undertake. The shield can be manufactured to accommodate heights from 0.80″ to a whopping 4.0″: The latter wouldn’t fit on any VME board we know of, but not every VME system component is located on a VME board (think of chassis panels, PSUs, and so on). The shield is a two-piece patented design and is available in 14 different styles, including through-hole and SMT. Since customization is the 80 Series’ main differentiator, many parameters can be manipulated to suit the final system design: cover retention dimples, pin spacing, base material, and ventilation holes, among other parameters.