Sheets Form Fast PCB Shields

Sheets Form Fast PCB Shields

Ready-to-use shielding sheets are available in prefabricated SAE and metric sizes, and can be easily cut to required forms using scissors.

Electromagnetic-interference (EMI) shielding can be quickly added to a printed-circuit-board (PCB) design via Tech-Etch’s ProtoShield shielding sheets, which can be easily cut into a required shape and size. A pair of scissors and a straight-edge tool are all that’s needed to form the shape and size needed to add shielding to a PCB prototype.

The ProtoShield sheets are depth-etched with a checkerboard pattern and come in two sizes—0.25-in. squares and in a metric version with 5-mm squares. The shielding sheets feature nickel-silver composition for good corrosion resistance and ease of soldering, without requiring additional finishing or plating. A prototype formed with the shielding sheets can be directly soldered to a PCB for ease of assembly.

Free samples of the shielding sheets are available upon request from the supplier. Standard versions are 0.10 in. thick with nickel-silver composition and CDA770 alloy material, in an overall size of 5.5 × 5.5 in. in 0.25-in. increments. The metric version offers 0.254-mm-thick nickel-silver composition and CDA770 alloy material, in an overall size of 1.25-mm square and 5-mm grid increments.

Tech-Etch Inc., 45 Aldrin Rd., Plymouth, MA 02360; (508) 747-0300, E-mail: [email protected]

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