AVX HV02-HV06 DIP leaded stack capacitors, SV conformally coated radiated leaded capacitors, and high voltage MLCCs (>/= 1kV) are now available in DO-160 tested versions rendering them suitable for use in flight applications. The typical civilian aircraft is struck by lightning approximately every 1000 flight-time hours, posing a possible threat to increasingly complex and … [Read more...]
Is Your Surge Protection Strategy Adequate for Dealing with Extreme Environments?
Relevant data and basic calculations can determine the level of lightning protection needed for a particular facility. Bryan Cole Technology Research Council Nichols, NY, USA Jim Tiesi Emerson Network Power Surge Protection Binghamton, NY, USA High-reliability systems require system up-times that approach reliability requirements of 99.9999 percent. Putting this requirement … [Read more...]
Multilayer Ceramic Capacitors Available in ESD-Resistant Version
The new E-series of multilayer capacitors from EPCOS is based on X7R material to create highly rugged and durable components. They are characterized as highly resistant to ESD pulses. With low capacitance values down to 1 nF, the E-series offers protection from EMI up to 300 MHz. With such low capacitance, these devices can also be used to implement ESD-resistant low-pass … [Read more...]
Towards an EMC Technology Roadmap
A technology roadmap is a tool for attaining the optimum development within a sector of technology Marcel Van Doorn, Phillips Electromagnetics & Cooling Competence Center Eindhoven, the Netherlands Introduction This article expands earlier work on the concept of a technology roadmap for EMC technology.1 Just as a traditional terrestrial map helps insure that travelers … [Read more...]
Input Attenuator Module Meets Conducted Emissions Specs of MIL-STD-461/C/D/E
The MI-IAM input attenuator module from Vicor Corporation is an accessory product to that company’s MI-200 and MI-J00 DC-DC converters that provide EMI filtering and transient protection. Designed for use with all 28- and 278-volt input converters, the MI-IAM can drive any number of modules with output loads up to 200 watts. This device meets the conducted emissions … [Read more...]
COTS Filter Module Features Module Provides Conducted Susceptibility & Spike/Surge Protection
The MTF50 is a COTS EMC filter from XP Power that has been developed specifically for the defense and avionics industry. This device has been crafted to filter the conducted emissions of the company’s MTC series of DC-DC converters and to protect against the conducted susceptibility as specified in MIL-STD-461-E and the surges and spikes specified in MIL-STD-1275A-D and … [Read more...]
DC/DC Converters & EMI Filters Target High-Reliability Applications
The new MilQor® product line of DC/DC converters and complementary EMI filters from SynQor has been crafted specifically for the high-reliability marketplace and are manufactured in an AS9100B-certified facility in the U.S.A. With proprietary QorSeal™ packaging that ensures survivability in harsh environments, these devices are compatible with industry-standard formats, but … [Read more...]
Resistor-Capacitor Device Provides ESD Protection for 3G LCD Screens
The EClamp237xK family of resistor-capacitor (R-C) protection devices from Semtech Corporation safeguards lines for cellular frequencies between 1.8 GHz and 2.5 GHz, the data rates required by the latest generation of high-resolution LCD screens used for visually oriented 3G handsets. This series includes the four-line EClamp2374K, the six-line EClamp2376K and the eight-line … [Read more...]
Different Methods of Connecting an SPD to an Electrical Distribution Network
The way in which SPDs are connected can have a large impact on the overall protection provided Bryan Cole Introduction Surge protective devices (spds) or transient voltage surge suppressors (TVSS) are used to reduce the impact of overvoltage transients on the electrical distribution networks found in various industries. Of course, the efficacy of these devices will affect the … [Read more...]
Reducing Ground Noise Emissions in Critical Electronic Equipment and Facility Ground Systems to Help Prevent Conducted EMI Problems
Many EMI problems involve emissions that circulate through electrical conductors within a facility and within equipment Philip F. Keebler and Kermit O. Phipps EPRI Knoxville, Tennessee Background The electromagnetic environment includes the areas inside and outside electrical and electronic equipment. The areas inside equipment include unused air spaces, circuit boards, cables … [Read more...]
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