The new ZCAT08V-BK and ZCAT12V-BK from TDK Corporation are being introduced as the industry's first automotive clamp filters suitable for use as a countermeasure for the effects of electronic noise on the cables that link a vehicle's various onboard ECUs. These filters are characterized by a unique structure consisting of a vertically split cylindrical ferrite core with an … [Read more...]
Fundamentals of EMC Design: Our Products Are Trying To Help Us
INTRODUCTION We often design electronic products only to find that when we test them for electromagnetic compatibility (EMC), their emissions and/or immunity are not as good as we need them to be. Usually, at this time, we feel as if we are fighting against the laws of physics to contain the conducted and radiated emissions, or to reduce susceptibility. But in fact the laws of … [Read more...]
200 Degree Centigrade Micro-D Connectors
Omnetics has announced an extension to its Micro-D family of connectors. High-strength beryllium copper spring pin technology, high temperature epoxy, and liquid crystal polymer insulators combine to offer the standard format of a .050” pitch D-shell connector. The gold plated pin/socket sets offer extended length of service while containing contact resistance down to 25mΩ @ … [Read more...]
Solderless Connections Test Methods Standard
IEC 60352-5:2012 is applicable to solderless press-in connections for use in telecommunication equipment and in electronic devices employing similar techniques. The press-in connection consists of a termination having a suitable press-in zone which is inserted into a plated-through hole of a double-sided or multilayer printed board. Information on materials and data from … [Read more...]
Integrated Design Changes Military Connectors
To meet the prerequisites of commercial aviation with customers like Airbus, Boeing and Dassault, interconnect solutions need to provide full system integration with engine control systems, radar facilities, power distribution networks, in-flight entertainment, wing and engine ice protection mechanisms as well as landing gear and braking control systems. In this context, … [Read more...]
Bioplastic Resin-Based Connector for Automotive Applications
Molex Incorporated, suppliers of interconnect products, announced the Stac64-e, a connector for automotive applications. The connector is made from 71 percent bio-based materials, a “resin derived from renewable plant-based castor oil,” and is in accordance with ASTM D6866-11, making it certified by the UL Environment ECV. The Stac64-e connector is “designed to withstand harsh … [Read more...]
Avionics Testing Evolution
Nicholas Wright, EMC Partner AG, Laufen, Switzerland Many disturbance sources can affect the correct functioning and therefore the safety of an aircraft. The latest commercial airliner designs include many technological changes that have necessitated a review of avionic system test requirements. The trend today is to move toward structures made from Carbon Fiber Reinforced … [Read more...]
Protecting Security Systems in a Healthcare Facility from Lightning Induced Transients
A healthcare facility is a multifunctional building or campus that provides health care to citizens and when designated, also provides protection to the population in times of crisis. This includes common functions associated with patient care (e.g. operating rooms, emergency rooms, recovery rooms, etc), but also areas for educational centers, exercise facilities, food service, … [Read more...]
Simple Method for Predicting a Cable Shielding Factor, Based on Transfer Impedance
For a shielded cable, an approximate relationship valid from few kHz up to the first cable resonance can be derived from its Transfer Impedance (Zt) allowing to predict the cable shielding factor. This Cable Shielding factor, as a figure of merit, is often preferred by engineers dealing with product specifications and early design. Being not necessarily EMC specialists, they … [Read more...]
Eliminating the Need for Exclusions Zones in Nuclear Power Stations
Utilities operating nuclear power plants have been dealing with electromagnetic interference (EMI) problems for over two decades. Many early problems that affected the operation of instrumentation and control (I&C) equipment in plants stemmed from the use of wireless transmission devices (WTDs) (e.g., radio walkie-talkies, cellular phones, etc) inside the plant in the … [Read more...]
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