Conductive Elastomer Connector Gaskets from Chomerics, Mounting Flange EMI Shielding Gaskets, Die Cut Gaskets for Military and Industrial Connectors


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Conductive Elastomer Connector Gaskets from Chomerics
Mounting Flange EMI Shielding Gaskets, Die Cut Gaskets for Military and Industrial Connectors

CHO-SEAL Gaskets: Chomerics' die cut connector gaskets provide EMI shielding and environmental sealing when inserted between a connector flange and a mounting bulkhead. These EMI gaskets are designed for use with MIL-C-83723, MIL-C-5015, MIL-C-26482, MIL-C-38999 and MIL-C-81511 connectors. They are interchangeable with nonconductive gaskets.

Standard mounting flange EMI shielding gaskets are available in CHO-SEAL 1212 material, for continuous-use temperatures to 125°C, and CHO-SEAL 1285 and 1224 materials, for temperatures to 200°C. Because CHO-SEAL 1224 material is filled with pure silver particles, prices are substantially higher than for CHO-SEAL 1212 or 1285 gaskets. In addition to the standard sizes and configurations listed here, connector gaskets and ground planes can be custom designed.

Connector gaskets should be used in conjunction with conductive interfacial EMI seals.

Interfacial EMI Seals
The main mating joint of environment-resisting MS connectors is normally provided with a rubber
packing ring (MIL-C-26482) or O-ring (MIL-C-5015) to seal moisture from the pin area. CHO-SEAL gaskets are interchangeable with these packing/O-rings and provide EMI shielding in addition to sealing.

Jam Nut EMI Seals
MIL-C-38999, MIL-C-26482, and MIL-C-81511 rear-mounting jam nut receptacles require an MS O-ring as a moisture-pressure seal. When EMI attenuation is also required, CHO-SEAL O-rings should be used. Each is interchangeable with the corresponding MS O-ring. The O-rings are available in CHO-SEAL 1215,1217, etc.

D-Subminiature Rectangular Environmental and EMI Gaskets
Subminiature D-style gaskets are used to provide EMI shielding and environmental sealing between connector flanges and their mating surfaces. Chomerics offers these gaskets in a complement of shell sizes from 9 to 50 pin, in a range of CHO-SEAL materials.

Multi-planar EMI Gaskets
SOFT-SHIELD 4800 Multi-planar conductive Z axis foam EMI gaskets represent Chomerics newest innovation in soft foam based EMI shielding technology. The unique integration of electrically conductive fibers into low density foam provides the basis for a performance driven, cost effective EMI shielding solution. Soft-Shield® 4800 is manufactured in rolls and is easily converted into product forms applicable for I/O panels, backplanes, connectors, access panels along with rectangular/ square strip gasket seals. Through the optimization of conductive fiber construction, loading and dispersion within the foam matrix, Soft-Shield 4800 provides superb Z axis conductivity with extremely short ground paths. Since the integrity of the base foam is uncompromised, Soft-Shield 4800 offers exceptional physical and mechanical properties.

Our company offers quality Electromagnetic Interference (EMI) and Radio-Frequency Interference (RFI) shielding products for Commercial and MIlitary Electrical Connectors. For ordering information, please see our Connector Accessory Catalog (PDF).

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