EMI shielding explained: how reflection and absorption stop interference, shielding effectiveness in dB, where EMI leaks, the main EMI shielding materials and a seven-step checklist for choosing them.
RF shielding for electronics: aperture sizing by wavelength, cavity resonance, RF shield cans, RF gaskets and absorbers by frequency band, plus a practical RF shielding design checklist.
PCB shield cans compared: one-piece, two-piece, off-the-shelf, multi-cavity, hybrid and machined RF shield cans, materials and thicknesses, standard vs custom sizes and a quote checklist.
A Tech-Etch alternative from 3G Shielding: fingerstock, conductive elastomer, knitted wire, fabric-over-foam, conductive foam and board-level equivalents, with free 48-hour samples and same-day engineering cross-referencing.
A MAJR Products alternative from 3G Shielding: conductive elastomer, fabric-over-foam, knitted wire, fingerstock, board-level, RF absorber, thermal and Gore-replacement equivalents, backed by same-business-day engineering.
A practical EMI gasket cross-reference guide: what information to send, how the major competitor families (Chomerics, Laird, Tech-Etch, MAJR, Gore) map to 3G equivalents, and how to second-source without a requalification surprise.
A Parker Chomerics alternative from 3G Shielding: CHO-SEAL, CHO-FORM, SOFT-SHIELD, board-level and absorber equivalents, with free 48-hour samples and same-day engineering cross-referencing.
A Laird / DuPont EMI shielding alternative from 3G Shielding: ECE/ELECTROSEAL, fabric-over-foam, board-level and Eccosorb-class absorber equivalents, backed by same-business-day engineering.
A practical buyer's guide to choosing an EMI shielding supplier - lead time, sampling speed, compliance, engineering support and total cost of ownership, with a supplier evaluation checklist.
Application-specific EMI shielding for aerospace and defense: MIL-STD-461 context, MIL-DTL-83528 gaskets, board level shields and Wavexorb absorbers from an ITAR- and JOSCAR-registered US manufacturer.
