TDK Corporation introduces its new series of EPCOS X2 EMI suppression capacitors. These EMI capacitors are humidity resistant and can operate in temperatures up to +110 degrees Celsius. “The B3292*H/J* series for operating voltages of up to 305 V AC comprises types with rated capacitances ranging from 0.1 µF to 15 µF and lead spacings from 15 mm to 37.5 mm. In addition, the … [Read more...]
Power Inverter for Energy Grid Testing Bought by U.S. Dept. of Energy
The U.S Department of Energy’s National Renewable Energy Laboratory (NREL) has purchased its second AC/DC High Power Source from AMETEK Programmable Power. The AMETEK system is a high power inverter suited for Energy Grid Testing. If installed parallel with the previous AMETEK unit purchased in 2013, this new system can supply up to 2 MVA, which would make the system the … [Read more...]
Breakthrough in Electromagnetism to Improve Global Communication
Researchers from the University of Cambridge in England have announced an electromagnetic breakthrough – the production of an antenna so small that it can be incorporated into electronic chips. They realized electromagnetic waves are not only generated from acceleration of electronics, but also from symmetry breaking. “Symmetry breaking in physics describes a phenomenon where … [Read more...]
Samsung Phone Study Inaccurate
Editor's Note: A study by Cnet in France announcing that Samsung gives off less electromagnetic waves than iPhones was deemed inaccurate by our technical editors and was removed from our website. We apologize for the error. To learn more about consumer electronics items and research, click here. … [Read more...]
Series of Shielded High-power Inductors Not Affected by Thermal Aging
Coilcraft introduces a new series of shielded high-current power inductors. The MLC75xx Series offers advanced handling, low DCR, Isat ratings up to 59.2 Amps, DC resistance down to 1.2 mOhms, and a reflow temperature of 260 degrees Celsius. They are made of RoHs compliant tin-silver with copper terminations and are not affected by thermal aging. The inductors are ideal for … [Read more...]
Company Expands Military Inductor Offerings
Gowanda Electronics will unveil five new RF inductors for military applications at the Space Tech Expo (booth 2118) on May 19-21 in Long Beach, CA. The inductor series includes: MLRF19M, MLRF21M, MLRF22M, MLRF24M and MLRF28M. The inductor series offers “inductance from 0.47 to 10,000 uH, Q min from 35 to 95, SRF MHz min from 0.95 to 300, DCR Ohms max from 0.06 to 72, and … [Read more...]
New Software Detects RF Interference
Delcross Technologies announces its new Electromagnetic Interference Toolkit (EMIT) Version 4.0 software for RF and radar systems. EMIT detects possible RF cosite interference that may occur between two or more radios. “EMIT manages installed RF system performance data, simulates intra-system RF EMI effects, and helps to mitigate EMI issues, resulting in a comprehensive … [Read more...]
EMC War Stories: Letters from Home Part 2: It’s hard for my computer to sleep when I’m doing the laundry
Candace Suriano Suriano Solutions John Suriano Nidec Automotive Motors Americas Dear John, Once again it’s a cold dry winter here and I have found that there is a great way to keep warm— by doing the laundry. I discovered something really strange, though: when I’m taking the laundry out of the dryer it sometimes wakes up the computer on the desk almost ten feet away! I knew … [Read more...]
FCC Changes Certification Process
By David A. Case NCE, NCT Senior Technical Leader Regulatory Cisco Systems IncAbstract: The FCC Authorization and Evaluation Branch has been the forefront in regards to reviewing and issuing of FCC certification. With the adoption of the Telecommunications Certified Body (TCB) program, a number of these approvals were done via TCB reviewers with FCC oversight, though the FCC … [Read more...]
Harmonic Comb Generators Are Useful Tools
By Kenneth Wyatt INTRODUCTION One tool every EMC test lab should own is a harmonic comb generator. A comb generator is simply a device that will produce a set of harmonically related CW signals whose spacing is based on a fundamental oscillator frequency. For example, if we were to start with a 10 MHz clock oscillator and feed the digital output into a coax connector, we’d … [Read more...]
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