EMI/EMP Filter Connectors Catalog - Glenair, Inc.

IntroductionIntroduction to Filter ConnectorsEMI/EMP GlossaryAPower Conditioning: Reduction of EMI pollution onpower mains by inserting filters, isolators, regulators,or an uninterruptible power supply (UPS).Radiated Interference: EMI or noise transmitted fromany electrical system, from power-lines to mobiletelephones.Radio Frequency Interference (RFI): A specialclass of electromagnetic interference in which radiofrequency transmissions cause unintentional problemsin equipment operation.Reflection Loss: Shielding effectiveness due to energyreflection from impedance mismatch between incidentfield and metal barrier.Roll-Off: The frequency in an attenuation curve atwhich a filter begins to reduce the quality or magnitudeof an electrical signal.Shielding Effectiveness (SE): The ratio of fieldstrengths (absorption and reflection losses) before andafter installing a shield.Shot Noise: The noise caused by random fluctuationsin the motion of charge carriers such as electrons in aconductor.Skin Depth: The calculated metal layer thicknessthrough which some 63 percent of the surface currentflows.Surge: A sudden voltage increase on the power mains.TEMPEST: Transient Electromagnetic PulseSurveillance Technology.Transfer Impedance (Z t ): The quality of cable shieldperformance calculated by the ratio of the coupledvoltage to the surface current, in ohms per meter(Ω/m).Transient: A short-duration voltage surge due to alightning strike or other dynamic event.UPS: Uninterruptible power supply.Waveform: For lightning events, measure of electricaltransient exposure level and surge severity.Filter Module ElementsMultilayerCeramic PlanarArray: Containinga network ofcapacitors,feedthrus andground lines.•••Contact Types:Choose from SolderCup, PC Tail or Piggy-Back Crimp (ConsultFactory for PC TailLength Options).•Contact Material:Gold PlatedCopper Alloy.Inductors:Ferrite Beads toprovide inductanceand increaseinsertion loss••Pin/Hole Intersection:The business-end of the filter,providing each contact withits capacitance value andgrounding.© 2008 Glenair, Inc. CAGE Codes 06324Printed in U.S.A.GLENAIR, INC. • 1211 AIR WAY • GLENDALE, CA 91201-2497 • 818-247-6000 • FAX 818-500-9912www.glenair.comA-22E-Mail: sales@glenair.com