EMI Shielded Fan Ventilation Panels

Series No. 3000

MAJR Products’ EMI Shielded Fan Ventilation Panels (shielded fan vents) are manufactured to meet the commercial market’s requirements for a low-cost, high-quality EMI fan vent panel. These small fan sized shielded waveguides are available in five standard sizes using a 0.250” thick honeycomb material and have an overall thickness with gasket of 0.407”. Standard gasket is a Monel wire embedded in a solid silicone with an optional gasket of a beryllium copper fingerstock. Tin plate (MIL-T-10727), nickel plate (MIL-C-26074A) or a RoHS compliant plating are available upon request.

Standard Products

Table 1 – Product Identification

Dimensions Part Numbers
1.57″ x 1.57″ (40mm x 40mm) 3031-04040-xx
1.97″ x 1.97″ (50mm x 50mm) 3031-05050-xx
2.36″ x 2.36″ (60mm x 60mm) 3031-06060-xx
3.15″ x 3.15″ (80mm x 80mm) 3031-08080-xx
4.72″ x 4.72″ (120mm x 120mm) 3031-12012-xx

Replace -xx with one of the following finishes:
for chromate finish -32;
for tin-plated -42;
for electroless nickel -49;
for a filter media -57;
for RoHS compliant -90;

Custom Product

Technical Info

Table 1 – EMI Shielded Fan Ventilation Panels Product Identification

Dimensions Overall Dimensions (mm) Part Numbers
1.57” x 1.57” 40mm x 40mm 3031-04040-xx
1.97” x 1.97” 50mm x 50mm 3031-05050-xx
2.36” x 2.36” 60mm x 60mm 3031-06060-xx
3.15” x 3.15” 80mm x 80mm 3031-08080-xx
4.72” x 4.72” 120mm x 120mm 3031-12012-xx

Finish & plating options:

(Replace -xx with the following)

  • for a chromate finish use -32
  • for tin-plated panel, use -42
  • for electroless nickel -49
  • for a filter media -57
  • for RoHS compliant -90

Design Data:

Shielding effectiveness is in the 50-60 dB range at 1 GHz, depending on the gasket material used. Standard lead times for MAJR’s EMI fan vents is in the two- to three-week range for most sizes, with quicker deliveries available based on plating and quantities required.

Other sizes available upon request. Contact us today.

Product Data Sheet

Product Options

EMI Shielded Fan Ventilation Panels are manufactured to meet the commercial market’s requirements for a low-cost, high-quality electromagnetic/radio frequency shielded ventilation panel. These units are available in five standard sizes using a 0.250″ thick honeycomb material and have an overall thickness with gasket of 0.407″.

(Replace -xx with the following)

  • for a chromate finish use -32
  • for tin-plated panel, use -42
  • for electroless nickel -49
  • for a filter media -57
  • for RoHS compliant -90