A line of Filter Connectors from Amphenol utilizes two manufacturing technologies to provide cost effective performance across the indicated frequency range. All filter contacts with the connector share a common ground plane, which is connected to the filter shell. The pin-to-pin isolation is 85 dB minimum at 100 MHz. The planar capacitor design joins pins to a multi-layered … [Read more...]
Schaffner's New Power Quality Brochure Highlights ECOsine Advanced Passive Harmonic Filters
Schaffner EMC has just released a new brochure featuring its latest advancement in power quality, the new ECOsine load-applied passive harmonic filters. Schaffner's latest filter series helps reduce harmonic waves and represents the ideal solution for three-phase power electronics with six-phase rectifier front ends, such as AC and motor drives.The 16-page brochure outlines … [Read more...]
KEMET Recognizes Employee for EMC Filter Patent
KEMET Corporation honored its 2008 United States patent recipients at its annual Patent Awards Luncheon on May 22, 2008, including Mike Randall for his Valve Metal Electromagnetic Interference Filter, U.S. Patent Number 7,211,740.KEMET employees received patents in areas such as low Equivalent Series Resistance (ESR) and Equivalent Series Inductance (ESL) capacitor design, … [Read more...]
Cavity Filter Targets WiMAX Applications
A new cavity filter series from MtronPTI has been developed especially for WiMAX applications and other wireless metro area network systems. The WiMAX cavity filter series covers the 2.3- to 2.7-GHz frequency range with emphasis on low-loss narrowband systems. A re-configurable design platform fully modeled in electromagnetic simulation software and tested with a stringent … [Read more...]
Tantatalum Chip Capacitors Offer Ultra-Low ESR Values
The new TR8 series of Molded MicroTan™ tantalum chip capacitors from Vishay Intertechnology provides ultra-low ESR values of 0.8 Ω (at 100 kHz and 47 µF) in the 0805 case size and an industry-low 1.5 Ω in the 0603 case size. Low ESR values combined with small footprints allows for greater efficiency in audio filtering and signal processing applications where PCB real estate is … [Read more...]
EPCOS Introduces New EMC filters for Long Motor Leads
EPCOS has extended its 3-line EMC filters by a high-performance series for frequency converters. It is distinguished by outstanding attenuation properties that offer decisive advantages especially with long motor leads. Cable-based measurements of commercial frequency converters showed that the EN 55011 limits were observed for class A up to 300 m and class B up to 200 m as … [Read more...]
Philadelphia EMC Chapter Briefed on AIRchitect Project for Navy
A City of (Brotherly) Love for EMCIEEE EMC Society Philadelphia Chapter Meeting IEEE EMC Society Mike Violette [Note: Mike’s journals of his trips through Asia and South America are, no doubt, familiar to our readers. This time he tackles the less exotic but hospitable territory of suburban Philadelphia.]It really was a dark and stormy night when we gathered at the LCR … [Read more...]
Filter Series Is Optimized for DC Applications
The FMEB and the FMEC line of filters from Schurter, Inc. have been optimized especially for use in DC applications, especially those requiring increased attenuation of asymmetric disturbances. These devices have a current rating of 30 amps at 80 VDC and are offered in single and dual polarity output circuits. The single polarity FMEB has been crafted for a maximum operating … [Read more...]
EMI Filter Array Comes with ESD Protection
The EMF-25ESD and the EMF-35ESD are dual-function devices that provide both EMI filtering and surge protection thus conserving valuable PCB real estate. A zinc oxide varistor is used to enhance the devices’ EDS function. The EMF-25ESD has a cut-off frequency of 300 MHz, capacitance values of 25 pF, attenuation of 30 dB minimum at 0.8 ~ 1.0 GHz and 20 dB minimum at 1.0 ~ 2.5 … [Read more...]
EMI Filters Are Available with Optional Surge Suppression
EMI filters modules from Foster Transformer are available with optional surge suppression. These devices can be mounted with ¼-inch quick connect terminals, a feature that allows them to be used wherever needed for EMI suppression—even in multiple locations within one piece of equipment. The fully encapsulated construction of these device complies with EN 133200 and UL 1283, … [Read more...]
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