High-voltage chip resistors target medical devices Product News 5/29/2004 Post a comment Review: SEI Electronics Inc. says its new high-voltage chip resistor series for medical applications outperforms its competitors in higher withstanding voltage and resistance range. The new HVC resistors can replace current solutions such as axial-leaded film and wirewound resistors in high-voltage medical applications with a smaller and surface-mountable part.
Sensors Expo highlights micro and nano technologies Product News 5/28/2004 Post a comment Need or want to learn more about micro and nano technologies, then the Sensors Expo & Conference is the place to be on June 7-10 in Detroit's Cobo Center. Designed to inform the technical community about advances and applications for these emerging technologies, the "Nanotechnology and Microelectromechanical Systems (MEMS), Microsystems Technologies (MST) and Micromachines" session will tackle three major issues commercialization, research and development progress, and current and future
Taiyo Yuden offers free HF component sample kit Product News 5/28/2004 Post a comment Taiyo Yuden (U.S.A.) is offering its new high-frequency designer's kit free to qualified designers attending the IEEE MTT-S International Microwave Symposium 2004 in Ft. Worth, Texas, from June 8-10. The component sample kit comes bundled with an assortment of capacitors, ferrite beads and multilayer inductors that are included on the accompanying RF Component Library CD containing enhanced high-frequency performance data for use in circuit simulations, and a copy of Ansoft Designer SV design si
LED lamps offer sunlight visible illumination Product News 5/26/2004 Post a comment LEDtronics has released its T3-¼ (9 mm) BF321 series of miniature bayonet-based LED lamps that incorporates advanced optical-grade epoxy to produce sunlight-visible illumination that is bright and evenly dispersed.
Chip inductors beef up current rating Product News 5/26/2004 Post a comment Taiyo Yuden (U.S.A.) said its new series of low profile, wound-chip inductors deliver 30% higher current rating as compared to conventional inductors in the same package size. The NR series is designed for use in dc/dc converter choke-coil applications, which is an emerging industry trend driving the replacement of less-efficient charge pump power supplies that can't meet the requirements of feature-intensive cell phones and other high-power consumption portable devices.
Component shortages seen preventing LCD surplus Product News 5/25/2004 Post a comment Although LCD suppliers are bringing a wave of next-generation fab capacity to meet the needs of the fledgling flat-panel TV market, component shortages are likely to prevent a surplus of panels, at least in the short term.
Planar transformers deliver 293 winding options Product News 5/25/2004 Post a comment Bringing custom planar transformers a step closer to off-the-shelf commodity status, Pulse's PA08XX 140-watt and PA09XX 250-watt series allow DC/DC converter designers to specify 293 different winding configurations, which are derived from 45 standard catalog parts. Users adding a primary auxiliary winding or a small gap to these stand alone transformers expand the number of possible configurations to over 1000.
Ferrite material targets high-frequency transformers and dc-to-dc converters Product News 5/20/2004 Post a comment ACME Electronics Corp. has expanded its line of manganese-zinc (Mn-Zn) ferrite materials with the introduction of its new P51 material that is offered in a selection of core shapes for high-frequency power electronics applications. The P51 soft ferrite material meets the increasing performance requirements of dc-to-dc converters with operating frequencies up to 1 MHz.
Ceramic resonator shrinks package Product News 5/20/2004 Post a comment Available in small and low-profile packages of 2.5 x 2.0 x 1.2-mm, the new SMRS-A2 and B2 series of surface-mount ceramic resonators from Raltron Electronics Corp. offer excellent stability over a wide temperature and frequency range. The ceramic resonators are suitable for high-density packaging applications, particularly for computer hardware, such as CD-ROM, DVD, scanners, digital cameras, and memory media.
Current sense resistors available in three power ratings Product News 5/19/2004 Post a comment Ohmite Manufacturing Company's new 60S series of surface-mount current sense resistors are available in three standard power ratings of 0.25-, 0.50- and 1.0-watt, which extends the company's power and resistance ratings for current sense devices to less than 1 watt and below 0.0005Ω, respectively.
High current inductors offer low profile Product News 5/19/2004 Post a comment TT electronics BI Technologies Magnetic Components Division has developed a series of high current, low profile power inductors that meet the design challenges of dc-to-dc converters and voltage regulation applications. The HM69 series surface-mount inductors offer a low-profile with current handling capability up to 70 amps, which make them suitable for space-constrained applications such as PCMCIA cards, PDAs and disk drives as well as a host of wireless applications.
SEI increases production capacity for thick-film chip resistors Product News 5/19/2004 Post a comment SEI Electronics, Inc. recently increased the production capacity for its RMC series thick-film chip resistors at its Taoyuan, Taiwan and Kunshan, China factories. This brings the company's total capacity for thick-film chip resistors to nearly 5 billion pieces per month, up from 3.5 billion pieces.
Tantalum chip caps packaged in wide range of case sizes Product News 5/19/2004 Post a comment Cal-Chip Electronics, Inc. is offering a new series of solid tantalum electrolytic chip capacitors in five EIA case sizes ranging from A to E (3216 - 7343H). The new TC series also provides a high capacitance range, a low equivalent series resistance (ESR) and low equivalent series inductance (ESL).
EMI filter replaces 20 discrete devices in wireless apps Product News 5/19/2004 Post a comment Designed with the company's proprietary Centurion advanced zener process, California Micro Devices' new CM1425 EMI filter with electrostatic discharge (ESD) protection safeguards data lines that connect the RF wireless and baseband chipsets, keypad modules, I/O data ports and buses in mobile applications. The four-channel EMI filter array offers a solution with 50% less capacitance and lower equivalent series resistance (ESR), which results in improved high frequency attenuation characteristics.
BI expands DDR SRAM termination network line Product News 5/19/2004 Post a comment TT electronics BI Technologies Electronic Components Division recently expanded its family of termination networks with the addition of the double data rate (DDR) SRAM family of networks. Using a ball grid array (BGA) connection to minimize electrical parasitics, these new BB1110B/BB2110DI Series DDR SRAM networks are suitable for high-speed communications.
Raychem expands PolySwitch family Product News 5/14/2004 Post a comment Raychem Circuit Protection, a business unit of Tyco Electronics, has added a 550 mA device to its LVR series of PolySwitch resettable devices, providing the series with a full coverage of applications up to 120 watts at 220 Vac and 60 watts at 120 Vac. The new device increases the maximum hold current rating from 400 mA to 550 mA and helps protect devices from damage caused by overcurrent and overtemperature fault conditions on the primary side of power supplies and transformers.
Clock oscillator gets smaller for handheld devices Product News 5/14/2004 Post a comment Review: This week, NDK (Nihon Dempa Kogyo Co., Ltd.) has announced the availability of its NZ2520 crystal clock oscillator (XO) series, which is housed in the industry's smallest package size of 2.5 x 2.0 x 0.9-mm. And it appears that NDK may be the first supplier to offer an XO in this package size.
VCXOs offer up to 300 MHz frequency range Product News 5/13/2004 Post a comment MMD Components (Monitor & Quartztek) is offering a new line of compact positive emitter coupled logic (PECL) voltage-controlled crystal oscillators (VCXOs) with frequency ranges up to 300 MHz in a 5 x 7 x 1.5 mm (0.2 x 0.28 x 0.06-in.) package.
SMD varistors replace larger leaded devices Product News 5/12/2004 Post a comment Touting lead-free options and surface-mount packaging, SEI Electronics Inc. offers a new series of medium-voltage varistors as a replacement for larger 5-mm and 7-mm leaded devices. The PV Series and DV Series varistors are capable of clamping voltages from 50 Vdc to 385 Vdc in industry standard 3225 and 4032 package sizes.
5 GHz VCO available in SMD package Product News 5/12/2004 Post a comment Continuing to expand the frequency range of its high-performance voltage-controlled oscillator (VCO) lines, Crystek Crystals Corp. has added a new 5-GHz model in a 0.50-in. x 0.50-in. standard surface-mount package to its CVCO55 family. The CVCO55BH-5256-5356 VCO generates a frequency range of 5256 MHz to 5356 MHz with a tuning voltage range of 1 Vdc to 4 Vdc. They can be used in a variety of applications including digital radio equipment, fixed wireless access, satellite communications systems,
Brighter LEDs target outdoor applications Product News 5/12/2004 Post a comment Agilent Technologies Inc. has developed its brightest indium gallium nitride (InGaN) LED line that now allows the company to expand its range of applications to full-color signs and mono-color traffic signals. Combining high brightness and weather-resistant packaging, the new series of extra-bright InGaN LEDs makes them suitable for outdoor applications such as traffic signals, pedestrian crossing signs, speed limit and exit signs, stadium scoreboards, advertising and other variable message sign
Sensor line offers three technologies in a common package Product News 5/12/2004 Post a comment TT electronics OPTEK Technology has developed the industry's first non-focused reflective switches that offer three optical sensing technologies infrared, visible light and VCSEL in a common package to provide greater design flexibility for using the devices across a variety of applications. The company says this translates into lower assembly, tooling and fixture costs for manufacturers.
Thyristors offer surge capabilities up to 100 amps Product News 5/7/2004 Post a comment Vishay Intertechnology, Inc. says its first family of surface-mount thyristor surge-protective devices delivers maximum breakover voltages of 70 V to 395 V, surge capabilities up to 100 A as well as provides excellent clamping performance with bidirectional "crowbar" protection. The crowbar action enables switching from a high-impedance, high-voltage "off" state to a low-impedance, low-voltage "on" state, which allows the devices to redirect current surges to ground. Because the voltage across t
Apogee redefines super capacitor Product News 5/6/2004 Post a comment eeProductCenter ExclusiveStart-up Apogee Power Inc. believes its new capacitor technology can significantly extend the operating life of lithium-ion batteries in digital communications devices, and could replace aluminum electrolytic and other types of electrochemical double-layer or super capacitors in lithium-ion battery packs. Target markets are cell phones, smart phones, pagers, digital cameras, handheld GPS devices, personal data assistants and laptop computers.
ZigBee: Wireless Technology for Low-Power Sensor Networks Design How-To 5/6/2004 Post a comment Technologists have never had trouble coming up with potential applications for wireless sensors. In a home security system, wireless sensors would be much easier to install than sensors that need wiring. The same is true in industrial environments, where wiring accounts for 80% of the cost of sensor installations. And then there are applications for sensors where wiring isn't practical or even possible. Gary Legg introduces a low-power wireless technology called ZigBee that is rewriting this wir
Protection devices target color LCDs in handsets News & Analysis 5/5/2004 Post a comment Semtech Corp. has developed a new protection device that is specifically designed to protect high-resolution color LCD screens in cell phones from damage by electromagnetic interference (EMI), radio-frequency interference (RFI) and electrostatic discharge (ESD). The EClamp2340C not only offers ESD/RFI/EMI protection; it replaces 40 discrete components in a typical cell phone design.
Ohmite beefs up resistor offering News & Analysis 5/5/2004 Post a comment Ohmite Manufacturing Company has recently announced the introduction of its new RW1S0CK Series of SMD current sense resistors and 30 Series of high-energy wirewound resistors.
Pentagon tests toxin detection and forecast system News & Analysis 5/4/2004 Post a comment The blimp with the 23-foot-long sensor-studded tether that is now hovering over the Pentagon is about to conduct novel tests of simulated airborne toxins. As the blimp releases a faux poison over the course of the next two weeks, a real-time system designed for first responders will gauge how much of the toxin has been discharged and where, and then predict where the plume will drift and how it will disperse.
Resistor chips offer a wide range of resistance values Product News 5/3/2004 Post a comment Featuring a resistance range of 0.1Ω to 100MΩ, a new family of high-stability, thickfilm resistor chips from Vishay Intertechnology, Inc. targets high-reliability applications such as industrial and military products. They also deliver high stability, high peak power and high frequency performance. The new devices are suited for calibration, power supplies, RF circuits and digital-to-analog conversion designs.
Blog Doing Math in FPGAs Tom Burke 18 comments For a recent project, I explored doing "real" (that is, non-integer) math on a Spartan 3 FPGA. FPGAs, by their nature, do integer math. That is, there's no floating-point ...