By Kenneth Wyatt Wyatt Technical Services LLC Those of us who are either in-house or independent EMC consultants can benefit greatly by assembling our own EMI troubleshooting kit. I’ve depended on my own kit for several years and it has proven not only valuable, but depicts a sense of professionalism in dealing with your own product development engineers, their managers, … [Read more...]
Is EMC prepared to handle the challenges of the Internet of Things?
By Gunter Langer, Langer EMV-Technik GmbH Contact: [email protected], www.langer-emv.de The number of mobile devices such as smart phones, tablets and wearables has risen significantly over the past years. At the same time, wireless communication has increased due to higher data rates. Will the growing number of wireless devices multiply the EMC problems? Is today's … [Read more...]
The IEMI Threat and a Practical Response
William Turner Senior Design Engineer MPE Ltd Email: [email protected] IEMI Threat With the increasing use of electronics to control so many aspects of modern life, from smart grids to driverless cars, Intentional Electromagnetic Interference (IEMI) is a threat gaining concern. Various initiatives have been set up to address the needs of specific market areas, and new … [Read more...]
What's new: IEC 61000-4-5 Second Edition vs. Third Edition
by Jeff Gray, Chief Technology Officer, Compliance West USA Introduction IEC 61000-4-5 is part of the IEC 61000 series, which describes surge immunity testing caused by over-voltages from switching and lightning transients. The second edition of IEC 61000-4-5 was released in 2005 and has been in use for many years. The third edition was released as an EN standard in 2014. The … [Read more...]
Multilayer SMD Ferrites Optimized for Peak Current Loads
By Markus Holzbrecher 1. Background 1.1. Chip bead ferrites Chip bead ferrites are inductive surface mount devices (SMDs) used for filtering undesired high frequency signal distortions in printed board assemblies. They are manufactured using a multilayer screen printing process. Optimised for as high as possible losses, these components consist of a nickel-zinc-ferrite … [Read more...]
MIL-STD-461G: The "Compleat" Review
Ken Javor, EMC Compliance January 2016 The deleted old, The brand-spanking new. That which was borrowed, And that, eschewed. MIL-STD-461G was released on 11 December 2015 and will become contractually obligatory on programs initiated after that date. This account is more than a simple laundry list arrived at by performing a side-by-side “F” vs. “G” … [Read more...]
Why Is There AIR (in MIL-STD-461G)?
Ken Javor, EMC Compliance January 2016 (with a tip of the hat to a great performer…) As noted in the compleat MIL-STD-461G review also found in this issue of ITEM, SAE Aerospace Information Report (AIR), AIR 6236, In-House Verification of EMI Test Equipment was written specifically to support MIL-STD-461G. Specifically, section 4.3.11 Calibration of measuring equipment … [Read more...]
Have Suspect Counterfeit ESD Packaging & Materials Infiltrated the Aerospace & Defense Supply Chain?
Have Suspect Counterfeit ESD Packaging & Materials Infiltrated the Aerospace & Defense Supply Chain? Bob Vermillion, CPP, Fellow Certified ESD & Product Safety Engineer - iNARTE RMV Technology Group, LLC NASA-Ames Research Center Moffett Field, CA 94035 According to the 12 February 2016 edition of the EE Times, President … [Read more...]