Z-based Bulk Metal foil tech boosts resistor performance Product News 12/31/2004 Post a comment Vishay Intertechnology, Inc. claims its new VSMP1206 high-precision, surface-mount, Bulk Metal Z-foil resistor is the industry's first such device to combine a high power rating of 300 mW, load life stability of 0.01%, and a low nominal temperature coefficient of resistance (TCR) of ±0.5 ppm/°C in an industry-standard, surface-mount package.
Electronic Direct now supplies hard-to-find parts in N. America Product News 12/31/2004 Post a comment Electronic Direct, an independent Munich, Germany-based company that specializes in providing active, passive, and system components, has opened an East Coast office to serve North American electronics and technology companies looking to procure hard-to-find and obsolete electronic components.
AdTech offers multi-layer co-fired ceramic design guide Product News 12/29/2004 Post a comment Advanced Technical Ceramics Company (AdTech)offers designers a new design guide on advanced electronic packages manufactured with co-fired multi-layer ceramic technology. Typical applications include multi-chip modules, microwave packages, high frequency feed-throughs, crystal packages, custom pin grid arrays and ceramic/metal packages.
Active EMI filters suit DC/DC converters Product News 12/29/2004 Post a comment Picor, a subsidiary of Vicor Corp. has added three new devices to its QPI family of active EMI filters. The company says the new products QPI-3, QPI-5 and QPI-6 support all 24- and 48-volt (V) DC/DC converter applications including COTS, industrial, information technology and telecommunications with higher current ratings and lower costs.
Heatsinkable wirewound resistors tout thermal and space advantages Product News 12/27/2004 Post a comment Ohmite Manufacturing Company has introduced a new WFH series of flat heatsinkable wirewound resistors with ratings from 90 to 330 watts. The company says the new resistors offer a cost, weight and space savings as well as superior thermal efficiencies compared with conventional aluminum-housed resistors.
High-current inductor meets extreme apps Product News 12/27/2004 Post a comment Resistant to moisture, salt, and chemicals, the new low-profile, high-current IHLP inductor from Vishay Intertechnology can be used in automotive applications and other extreme environments. The new IHLM-2525CZ-01 series features the lowest DCR/μH for its package size 0.255 in. x 0.270 in. (6.47 mm x 6.86 mm) with a low 0.118-in. (3.0-mm) profile and excellent operation over a frequency range up to 5 MHz.
New Circuit Protection Options for Power Electronics News & Analysis 12/27/2004 Post a comment When a fault occurs in a linear transformer or power supply, some of the components may begin to overheat. In the case of the switch mode charger, some of the components that can fail are the magnetics or the switching FETs. A solution to this problem may be to use a polymeric positive temperature coefficient device that can help provide both overcurrent and overtemperature protection in one convenient package. A Raychem engineer offers these insights. (Thanks go to Paul O'Shea at powermanagment
Tuning fork crystals shrink in size Product News 12/24/2004 Post a comment Raltron Electronics Corp. says the new RT series is the company's smallest tuning fork crystal line. The reduced height of 0.85 mm maximum makes the new series suitable for low-profile applications including cell phones, clock timers, PDAs and wireless devices.
Tiny thermistor offers enhanced response time Product News 12/23/2004 Post a comment AVX Corp. has developed an 0402 surface-mount thermistor for temperature compensation and control applications in handheld and portable electronics equipment such as mobile phones, hard disk drives, laptop computers and compact disc players.
Piezo buzzer is waterproof Product News 12/17/2004 Post a comment CUI Inc. claims it offers the industry's smallest piezo buzzer with an IP67 rating. Designed for a range of waterproof and dustproof applications in transportation, home appliances, and diving equipment, the CPE-243, with a built-in driver circuit, generates 80 dB at 30 cm or 100 dB at 3 cm in a continuous tone.
Power shielded inductor features small size Product News 12/17/2004 Post a comment Targeting MP3 players, digital cameras, gaming consoles and other low power dc-to-dc applications, Pulse, a Technitrol Company offers a new series of power-shielded surface-mount inductors with a small 6.2 x 6.2 x 2 mm maximum footprint.
Inductors pack performance in small footprint Product News 12/17/2004 Post a comment Designed for communications applications with limited board space, Vishay Intertechnology, Inc. has expanded its IMC family of wirewound, surface-mount inductors with the release of two new devices packaged in small 0402 and 0603 case sizes.
Single-chip solution addresses timing and EMI reduction in notebook PCs Product News 12/16/2004 Post a comment Cypress Semiconductor Corp. has announced sample availability of a single-chip solution that addresses the timing and electromagnetic interference (EMI) reduction requirements of notebook PCs. Cypress's new CY28442, which combines a frequency timing generator and a Peak Reducing EMI Solutions (PREMIS) spread-spectrum clock generator, meets Intel's CK410m and CK-SSCD specifications and definitions for its low-power Alviso platform for notebook PCs.
Dual ideal diodes deliver 2.6 amps Product News 12/16/2004 Post a comment A new two-channel ideal diode from Linear Technology Corp. is designed to reduce heat, voltage drop and board space as well as preserve battery life in handheld products, and systems with a USB interface or backup battery. The company says the device is suitable for applications that require an ideal diode OR function for load sharing or automatic switchover between two input power sources.
Rugged, high-current inductors withstand up to 200°C Product News 12/16/2004 Post a comment Designed for high current, high temperature applications in rugged environments, the new DR360, DR361 and DR362 series wirewound coil inductors from Datatronic Distribution Inc. provide reliable protection against electromagnetic interference (EMI) in high current handling applications up to 38+ amps (A).
Small LCD targets industrial apps Product News 12/15/2004 Post a comment To support the growing trend for VGA resolution in industrial markets, Sharp Microelectronics of the Americas offers a new high-resolution 6.4-inch transmissive TFT-LCD module. This new LCD meets the performance needs of design engineers in North America
integrating color VGA displays, or upgrading existing displays, into industrial applications that support VGA resolution such as control systems, factory automation, handheld instrumentation, test and measurement equipment, security monitors an
Vishay expands IHLP inductor line Product News 12/15/2004 Post a comment Vishay Intertechnology, Inc. has expanded its IHLP family of low-profile, high-current inductors with two new devices offering inductance ranges of 0.1 μH to 2.2 μH (IHLP-2525EZ-05) and 3.3 μH to 10 μH (IHLP-2525EZ-01). The new inductors provide saturation currents up to 70 amps (A) and typical direct current resistance (DCR) values as low as 0.81 milliohm (mΩ) in a 2525 package.
PartMiner offers RoHS-compliance data News & Analysis 12/15/2004 Post a comment Component database provider PartMiner Inc. announced Wednesday (Dec. 15) it has added detailed information on hazardous material content of electronic components to its CAPS online repository.
Light engines are brighter Product News 12/14/2004 Post a comment By using the latest advances in high-power LED technology, Lumitex has developed a new line of modular light engines that significantly increases brightness. The LED light engines combine one or more high-bright LEDs such as the Luxeon III Star or Luxeon V with a Lumitex woven or UniGlo fiber optic panel, resulting in increased panel brightness by as much as 20 to 50 times greater than other solutions, says the company.
Current sense resistor handles high current Product News 12/14/2004 Post a comment Offering designers of portable electronic equipment another choice in ultra-low resistance and high current resistor options, Stackpole Electronics Inc. has introduced a new current sense chip resistor, in a 2512 case size, capable of withstanding currents to 63 amps.
OPTEK products meet stringent standards Product News 12/14/2004 Post a comment OPTEK Technology, a subsidiary of TT electronics, now offers the capability to design, manufacture and test high-reliability commercial off-the-shelf (COTS) products in accordance with U.S. Mil-Std 19500 and European Space Agency (ESA) ESA/SCC-5000 PRF for spacecraft and satellite applications.
Spread spectrum clock oscillator embeds high-frequency crystal Product News 12/14/2004 Post a comment Cypress Semiconductor Corp. has announced volume production of its CY25701 programmable spread spectrum crystal oscillator (SSXO) embedded with a high-frequency reference crystal in a single package. The company says the onboard crystal has been specified, designed, and tested to operate with Cypress's programmable Peak Reducing EMI Solutions (Premis) spread spectrum chip, which significantly reduces design and test time, and product development cost as compared to an external crystal solution.
The Myth of the Neutral Wire Design How-To 12/8/2004 Post a comment This white paper from American Power Conversion Corp discusses many common misunderstandings about the function of the neutral wire and its relation to power problems. The subjects of dedicated lines, phase reversal, isolation transformers, and grounding are addressed. Various myths are described and criticized.
Transformers fit small spaces Product News 12/8/2004 Post a comment A new line of current transformers from Foster Transformer features a compact ¾-in. x 7/8-in. size and several mounting options. These PC-board mounted transformers can be used in motor control applications, UPS systems, appliances, or any application where isolated current monitoring is needed.
Warm white LEDs replace incandescent lamps Product News 12/8/2004 Post a comment BivarOpto, the Optoelectronics division of Bivar, Inc., has introduced a new wedge-based warm-white LED series that features the accurate color output of industry standard T-1 3/4 (5 mm) wedge-based incandescent bulbs. The company says by offering the same output brightness and hue as incandescent lamps, the new LEDs can be used in a host of new applications where the longer life LEDs can lower replacement and overall systems maintenance costs.
SMD crystal claims smallest size Product News 12/8/2004 Post a comment Targeting handheld and portable wireless markets, International Timing Technologies Inc. (ITTI) claims to offer the smallest surface-mount crystal in production. The new I20 crystal measures 2.5 x 2 mm with a height of 0.9 mm.
Industrial semiconductor markets promises 8 percent growth News & Analysis 12/8/2004 Post a comment A Databeans study found that the highest growth was attributed to sensors, followed by digital signal processors, optoelectronics, analog and microcontrollers. Competition is strong in this segment. Leading suppliers include Texas Instruments, STMicroelectronics, Philips Semiconductors, Freescale, and Infineon Technologies.
Audio transducer touts higher output Product News 12/7/2004 Post a comment Transducers USA says the unique piezo crystal construction of its new TRTP-4533P audio transducer allows for a higher drive voltage, which results in a minimum sound pressure level of 102 dB at 30 cm with a resonant frequency of 2500 Hz. This higher dB output makes the audio transducer a good fit for alarm, medical and industrial applications where a higher alarm attention device is a requirement.
Clock oscillators available in low voltages Product News 12/7/2004 Post a comment Euroquartz Group's XO91 series of surface-mount clock oscillators now features versions that operate with 1.8 and 2.5 V supplies. Available in 7 x 5-mm packages, these low voltage SMD oscillators are suitable for use in a wide variety of applications including handheld and battery-powered communications equipment, PDAs, GPS and wireless LAN.
Component orders fell in November, says ECA News & Analysis 12/7/2004 Post a comment Indicative of the current uncertainty in the electronics market, the monthly order index compiled by the Electronic Components, Assemblies & Materials Association (ECA) dipped in November after rising in October.
Maxwell expands ultracap line with standard packs and modules Product News 12/6/2004 Post a comment Expanding its line of standard battery-sized D cell BOOSTCAP ultracapacitors, Maxwell Technologies Inc. has introduced a new family of fully-integrated 15-volt BOOSTCAP packs and modules for back-up or pulse power in a wide range of automotive, consumer and industrial applications. Key benefits of the new devices include faster prototyping, shorter time to market and lower manufacturing costs.
Stackpole adapts new technology process to resistor divider networks Product News 12/6/2004 Post a comment high performance, Stackpole Electronics (formerly SEI Electronics) says its new HVD series of leaded high-voltage resistor divider networks, based on its proprietary fine film deposition process, are superior to any thickfilm resistor network technology that exists today, and touts several advantages over thin-film technology. The company believes its technology is better than traditional thickfilm counterparts, namely because of advantages in resistance value range, tolerance, voltage ratings,
Wirewound resistors address surge applications in medical electronics Product News 12/2/2004 Post a comment Capable of withstanding repetitive high energy pulses make TT electronics IRC Wirewound and Film Technologies Division's new non-inductive power resistors an excellent fit for high energy circuits in defibrillators and other medical electronics applications. Depending on the application, the NT series wirewound resistors are used to divide the voltage or limit the amount of energy delivered to the patient, said the company.
Optical mouse sensor enhances tracking control Product News 12/2/2004 Post a comment Delivering automatic frame-rate selection and excellent tracking control for optical mice used in desktop and notebook PCs, trackballs, and integrated input devices, Agilent Technologies Inc. offers a new LED-based optical mouse sensor that provides better tracking control than the company's previous-generation LED-based devices. The company says the new sensor outperforms other optical mouse sensors by working over a wider variety of surfaces.
Niobium oxide caps deliver ultra-low ESR Product News 12/2/2004 Post a comment Delivering ultra-low equivalent series resistance (ESR) of 55 milliohms, the environmentally-friendly version of AVX's OxiCap Niobium Oxide (NbO) solid electrolyte capacitors are both lead- and halogen-free. They also feature non-burn characteristics so failed devices are guaranteed not to burn up to the rated voltage. Applications include notebook and laptop computers, automotive electronics, mobile phones and PDAs.
Polymer tantalum caps withstand lead-free processes Product News 12/2/2004 Post a comment Helping design engineers to comply with emerging international directives such as Reduction of Hazardous Substances (RoHS) and Waste Electrical and Electronic Equipment (WEEE) legislation, AVX has developed a new series of low equivalent series resistance (ESR) conductive polymer tantalum capacitors specifically designed to withstand the higher temperatures required for lead-free soldering processes and are capable of withstanding 260°C reflow temperatures three or even four times, said the c
Cell Phone Security at Our Fingertips Design How-To 12/2/2004 Post a comment Fingerprint identification once was exclusively the domain of law enforcement and government agencies. Biometric security technology has made significant advances since the turn of the century and is well on its way to becoming as widespread as wireless networks, MP3s and handhelds. In this feature article, AuthenTec's Art Stewart takes a look at the technology behind fingerprint slide sensors and the growing demand for this technology in the cell phone consumer market.
Why does the Efficiency of my Flyback nose-dive? Design How-To 12/2/2004 Post a comment Sanjaya's back with a confession: "I learned a lot at that little company I worked for way-back-when." What he learned is that flyback switchers have problems with leakage inductance which can come around to bite your tail. Also, a thing-or-two about PSpice, Andrew Lloyd Weber musicals, consultancies in the dot-com era, and the little Precision Advocate that lives inside us. A December smorgasbord, Sanjaya's most personal column yet. Enjoy!
RC Chips - available in five circuit configurations Product News 12/1/2004 Post a comment A resistor capacitor chip network which offers multiple combinations of resistors and capacitors in a choice of circuit configurations on a single 2512 ten-terminal package is available from TT electronics BI Technologies. Designated the model RC6, the chip is available in a range of five circuit configurations and is specially designed for use in high speed AC line termination and EMI/RFI filtering applications.
Blog Make a Frequency Plan Tom Burke 17 comments When designing a printed circuit board, you should develop a frequency plan, something that can be easily overlooked. A frequency plan should be one of your first steps ...