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Interference Technology

For EMI / EMC Engineers

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Radial Leaded Inductors Deliver EMI Protection

 

The new Model DR217 Series Radial Leaded Inductors from Datatronic Distribution, Inc., provide protection against challenging EMI/RFI problems in current handling applications up to 8.4 Amps. The ROHS-compliant DR217 Radial Leaded Inductor series is designed for EMI filters and switching power supplies.Learn more at Datatronic’s Web site. … [Read more...]

LED Driver Said to Reduce Cost of EMI Filter Components

 

A common EMI challenge in automotive applications is avoiding interference of an electronic circuit with the AM radio. Maxim Integrated Products says its new MAX16814 allows users to program the switching frequency from 200kHz to 2MHz, thus enabling operation above the AM radio band. In addition, its oscillator-synchronization feature minimizes EMI noise when multiple MAX16814s … [Read more...]

Ultra Small Micro-Surge Suppressor

 

A new method to suppress micro-surge, an over-voltage noise that occurs instantaneously caused by inverter switching signals, has been developed by OKI Electric Cable of Kanagawa, Japan, and Tokyo Metropolitan University. A patent is pending on the method that employs a surge suppression cable and a newly developed energy regeneration module. These new technologies enabled the … [Read more...]

Device Reduces System Cost in Consumer Audio

 

Texas Instruments Incorporated recently introduced a 15-W stereo, true filter-free, analog-input, Class-D audio amplifier. The device's advanced electromagnetic interference suppression technology eliminates the need for costly inductor-based output filters, reducing bill of materials (BOM) cost by as much as 50 percent. The TPA3110D2's SpeakerGuard protection circuitry … [Read more...]

New Four- and Eight-Channel LC EMI/ESD Filter Arrays

 

Vishay Intertechnology, Inc. recently announced the release of two new four-and eight-channel LC EMI/ESD filter arrays with input loss of < 1 dB in ultra-compact LLP1713 and LLP3313 leadless packages. With a low profile of 0.6 mm, the new VEMI filter arrays are designed to save board space and provide EMI filtration and ESD protection for embedded cameras and LCDs in … [Read more...]

Low Capacitance EMI Filters for Wireless Handsets

 

California Micro Devices recently announced the CM1457 family of inductor based electromagnetic interference filters for mobile handsets. With traditional filter architectures, there is a tradeoff between low levels of capacitance — which are necessary to achieve higher cutoff frequencies — and reduced levels of filter attenuation. The CM1457, based on the advanced Praetorian … [Read more...]

Murata Launches ESD Protection Series

 

Smyrna, GA, August 25, 2009 - Murata Electronics North America, an innovator in electronics and a global supplier of ceramic passive components, announced the availability of the LXES product series. These silicon-based devices are critical components in protecting electronic equipment, such as mobile phones and portable personal computers, from electrostatic discharges (ESD).A … [Read more...]

SMD Common Mode Line Filter for power supplies

 

Wurth Electronics Midcom extends the existing WE-SL5 family with the SMD Common Mode Line Filter, WE-SL5 HC, for high currents. With impedances up to 1000Ω, a current capability up to 5A, and a rated current of 80VDC (42 VAC), the SMD line filters are especially suitable for power supplies. Additional characteristics of the WE-SL5 HC are the 9.5 x 8.3 mm footprint and a profile … [Read more...]

New Chip Ferrite Beads Offer 60% Lower DC Resistance

 

Murata Electronics North America, a global supplier of ceramic passive components, introduces the BLM15AX_SN series, an advanced ferrite bead that lowers DC resistance by up to 60 percent compared to previous models.  As part of Murata's expanding electromagnetic interference filter (EMIFIL™) line, the chip ferrite bead was developed with new ceramic materials and processing … [Read more...]

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