The TDK Corporation has extended its range of EPCOS thyristor modules for dynamic PFC. The new TSM-LC-I module now also allows single-phase PFC of networks with rated voltages from 230 to 525 V AC. Depending on the voltage, the new module is designed for reactive powers of between 10 and 22 kvar. 110 V AC versions are available upon request. The EPCOS TSM-LC-I is characterized … [Read more...]
IEC Publishes Optical Amplifiers Standard
IEC 61291-1:2012 applies to all commercially available optical amplifiers (OAs) and optically amplified assemblies. It applies to OAs using optically pumped fibers (OFAs based either on rare-earth doped fibers or on the Raman effect), semiconductors (SOAs), and waveguides (POWAs). This third edition cancels and replaces the second edition published in 2006. It is a technical … [Read more...]
EMI/RFI Shielding Firm Achieves ISO Certification
VTI Vacuum Technologies, a company that specializes in plastic coating of electronic enclosures to safeguard against EMI/RFI, was recently certified for conformance to ISO 9001:2008 standards for its quality management systems. CEO and founder Guillermo “Wil” Fernandez noted, “Credit goes to all of our employees for their dedication and hard work in achieving this significant … [Read more...]
Swiss Researchers: EM Radiation Can Indicate Keystrokes and Can Compromise Privacy
According to research carried out by doctoral students Sylvain Pasini and Martin Vuagnoux working in the Security and Cryptology Laboratory at the Ecole Polytechnique Fêdêrale in Lausanne, Switzerland computer keystrokes can be detected from afar by detecting slight changes in the electromagnetic radiation emitted by the keyboards. They concluded that keyboards should not be … [Read more...]
Tantalum Capacitors Offer 33-°F Capacitance in 1206 Footprint
The newly expanded TLJ Series of capacitors from AVX Corporation includes a tantalum capacitor that offers higher capacitance versus voltage ratio bases on stable MnO2 electrodes. The TLJ Series capacitor offers a 33-°F capacitance at 10 V on a 1206 footprint with a height below 1 mm. These devices are manufactured from tantalum for high reliability and clear filtering. They … [Read more...]
Arizona Legislators Move to Protect Army Test Facility from Interference
The Arizona state senate passed a bill in 2008 that would protect the U.S. Army's radio and electronic testing site from interference. Senate Bill 1387 requires cities, town, or counties to notify Fort Huachuca commanders when they receive an application to alter property in the military electronics range. Fort Huachuca's unique topography ringed by metal rich mountains … [Read more...]
Surface Mount EMI Filters Target Data Line Applications
The PDLF series of surface mount data line filters from Coilcraft eliminates the problem of conducted EMI in data line applications. They provide exceptional common-mode noise attenuation from 15 MHz to 300 MHz while passing signal line data below 300 MHz with minimal attenuation. These low resistance filters have been crafted for excellent electrical isolation (300 Vrms), … [Read more...]
EMC/RFI Filters With Minimal Leakage Current
The FN 3025 and the FN 3026 from Schaffner are based on an advanced EMC/RFI filter concept. These compact, state-of-the-art filters feature lightweight plastic enclosure design, minimized filter leakage current, hinged safety covers, innovative embedded filter terminals, a chassis or DIN-rail mounting option, selectable performance levels, and an environmentally friendly design … [Read more...]
Aluminum Capacitors Offer Compact Design Solution
The new B43305 and B43508 series from EPCOS are snap-in aluminum electrolytic capacitors that offer converter solutions along with significant space savings. They feature the same electrical properties as earlier versions, but are smaller by up to two case sizes--corresponding to a height reduction of up to 5 and 10 mm, respectively. The B43305 series covers the capacitance … [Read more...]
DO-160 Lightning Simulation Testing added to list of EMI/EMC services
Oct 2007 - When lightning strikes, everyone needs to be confident that important systems will not be damaged. This is especially critical in the Aerospace and Military arenas, where there is a constant need to qualify systems that may be exposed to the indirect induced effects of a lightning strike, and must be tested to demonstrate the ability to function properly under such … [Read more...]
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