2.54mm Pitch Shielded Metal Shell Female Header Connector Dual Row 2x20 EMI Protected Socket

Ribbon cable interfaces are efficient until the cable acts as an antenna. A 2.54mm IDC ribbon running between two boards inside a panel carries every signal in the system, and without a shield it also carries whatever noise couples into it from nearby drives and contactors. This shielded female header wraps the dual row contact field in a tin plated stainless steel shell with grounding tabs, giving the mating connector a continuous conductive path to chassis ground on all four sides.

The shell is a single formed piece rather than two half cans, so there is no seam for high frequency leakage and no second assembly step. Grounding tabs at each end press against the enclosure or a pad on the PCB, and the shell also acts as the mechanical guide that centres the mating header before contacts engage. Inside, standard 2.54mm dual row phosphor bronze contacts with gold flash over nickel carry the signals, so electrical performance matches a conventional IDC socket.

• 360 degree metal shell: A single formed stainless shell closes the seam that two piece cans leave open at high frequency.
• Grounding tabs: End tabs bond the shell to chassis ground through the enclosure or a PCB pad.
• Mating guide: The shell funnels the mating header into position before contacts touch, protecting the pin field.
• Tin plated finish: Solderable and corrosion resistant, with a conductive surface that stays stable in humid cabinets.
• Standard 2.54mm contacts: Signals run on ordinary dual row phosphor bronze contacts, so no requalification is needed.
• Single piece construction: One formed shell removes a second assembly step and a loose part from the bill of materials.

Shielded headers are used where a ribbon interface runs through an environment with switching noise. Motor drive panels use them to bring control signals from a logic board to a power stage, CNC controllers use them between an axis card and a terminal board, and medical equipment uses them where cable emissions must stay inside strict limits for electromagnetic compatibility. They also appear in telecom shelves, in instrumentation that shares an enclosure with relays, and in test racks where adjacent equipment radiates continuously.

Positions from 2 x 6 to 2 x 20 are available, and we can extend the shell to cover a keyed or latched mating header. Options include a nickel plated shell for better conductivity, additional grounding fingers along the sides, a right angle shell for side entry, and a version that mates with standard 2.54mm IDC ribbon connectors. Our engineers can supply the shell to contact continuity test data and, where the customer needs it, support EMC pre compliance measurement of the assembled cable harness.

Each connector is counted into anti-static shielding bags with a desiccant sachet and a humidity indicator card, then packed into export-grade corrugated cartons carrying the CNJWY neutral label. Inner foam inserts keep the contact field clear of the carton wall, and carton gross weight is held under 15 kg so that air freight handling limits are respected. Sea freight shipments are palletised, stretch wrapped and strapped against container humidity. Own-brand labels, barcoded cartons and drop tested inner boxes can be supplied for distributors, and every lot ships with a dimensional report, a plating thickness certificate and a RoHS declaration taken from the same production batch.