SPIRA MANUFACTURING

Quick-Shield

This patented spiral is the best low cost EMI gasket solution. The spiral is wound out of spring temper stainless steel for excellent spring memory and compression set resistance. The stainless steel spiral exhibits moderate to high shielding properties at a very low cost.

The low cost and moderate shielding of this gasket offer an excellent solution for meeting FCC and European Community EMI requirements. Combining it with a die-cast or molded “pinch boss” groove gives you the optimal price/performance combination.

MATERIALS

Spiral: Stainless steel. (Also available in a passivated version.)Cord: “No cord” is the default to keep costs low. See Options if cord is desired.

SHIELDING QUALITY

This gasket offers shielding quality in excess of 95 dB at 1 GHz. The shielding quality may vary depending on the specific application. Refer to page 49 for more complete performance data.

COMPRESSION FORCE

Quick-Shield gaskets come in three different resiliencies (as shown below). Optimal compression of the gasket is 25% of the diameter of the spiral. Since the force to compress the gasket is a function of the cube of the thickness of the stainless steel ribbon, the compression forces shown are approximate.

Standard Force: ~30 pounds per linear inch compression.Moderate Force: ~10 pounds per linear inch compression.Low Force: ~1.5 pounds per linear inch compression.

MOUNTING

This gasket is groove mounted.