EMI Catalog - Spectrum Control

Advantages of SpectrumFiltered ConnectorsFiltered ConnectorsSpectrum offers the industry’s most complete lineof filtered D-subminiature connectors.Features■ All shell sizes (9, 15, 25, 37 and 50)■ Many termination types (PC mount, wire wrap,solder cup and 90° PCB)■ In house ceramic tube design for highperformance filtering■ Filtering options:■ Pi Filter Configuration (Provides 45-60 dBper decade slope to insertion loss curve)■ Capacitive only C Filters(Provides cost-effective EMI attenuation)■ Ferrite Filtered Series F Connectors(Provides filtering in situations that do nottolerate capacitive loading of circuit)■ Series 500 Connectors (Short .318" PCB footprint)■ Chip-Cap Series 100 Connectors (Short .318" PCB footprint)■ Construction (Series 600 & 700)■ One piece zinc diecast shell, nickel plated■ Complete 360° grounding with ground plate■ Patented coaxial springs ensure ground continuityFactors to be considered when evaluating EMI filteringthrough filtered connector or on-board filter:■ EMI effectiveness■ Cost of components■ Hidden costs of extra components■ Design of board■ ReliabilityAdvantages of a Filtered Connector■ Low ground impedance – Full ground plate andmetallic shell provide minimal impedance and superiorperformance compared to on-board filter with highimpedance■ Eliminate re-radiation – Filtered connector atinterface leaves no path for bypassing the filter■ Ground plane shielding – Spectrum Control filteredconnector ground planes shield the box even at theconnector port■ Efficient space utilization – Filters located inconnector provides additional space on PCB board■ Consistent performance – Filtered connectorsprovide more consistent pin to pin performance■ Fewer components – Filtered connectors reducecomponent count creating cost savings■ Reliability – Spectrum Control tests 100% of filters,on-board filters are usually spot testedD-Subminiature ConnectorsOn-Board Filters131SPECTRUM CONTROL INC. • 8031 Avonia Rd. • Fairview, PA 16415 • Phone: 814-474-2207 • Fax: 814-474-2208 • Web site: www.spectrumcontrol.comSPECTRUM CONTROL GmbH • Hansastrasse 6 • 91126 Schwabach, Germany • Phone: (49)-9122-795-0 • Fax: (49)-9122-795-58