Tiny EMI filters protect wireless handsets Product News 6/30/2005 Post a comment California Micro Devices has developed a new family of packaged Centurion Application Specific Integrated Passive (ASIP) electromagnetic interference (EMI) filter arrays that feature high-performance EMI filtering and electrostatic discharge (ESD) protection in a small 0.4-mm pitch TDFN package, which is about a 42% space savings compared to existing 0.5-mm pitch TDFN packages.
Bare element resistor provides ultra-low resistance Product News 6/30/2005 Post a comment Ohmite Manufacturing Company has introduced two new families of four-terminal bare element resistors. The new 610 and 650 Series devices provide ultra-low resistance values to 0.005 ohms for relatively high-current requirements. Together with a radial Kelvin configuration and PC-board mounting, this makes the new devices suitable for current sense applications.
Military gets high CV tantalum capacitors in smaller case sizes Product News 6/29/2005 Post a comment AVX Corp. has developed an extended range tantalum capacitor series that offers additional high capacitance/voltage (CV) ratings in smaller case sizes than previously available. Designed specifically for military applications, the CWR19 and CWR29 capacitors are mil-qualified up to failure rates of B and C. These devices may also be used in harsh environment applications such as space exploration and aerospace.
Chip termination beefs up performance for RF/microwave apps Product News 6/27/2005 Post a comment ; International Manufacturing Services, Inc. (IMS) has introduced a new series of 50-ohm termination resistors with integrated matching that offer improved VSWR and power handling. These new devices may be used as isolator circuits in RF/microwave amplifiers and antenna systems.
Pressure sensor designed for hazardous environments Product News 6/27/2005 Post a comment American Sensor Technologies, Inc. (AST) has launched its new AST4310 pressure sensor for measurement of gases and liquids in extremely harsh environments. The new sensor is approved to UL 1604 (CSA 213) Class 1 Div 2, Groups A, B, C, and D for use in hazardous locations, and holds a CE Approval of EN 61326.
Planar capacitor arrays target filtered connector apps Product News 6/24/2005 Post a comment Syfer Technology Ltd. now offers an extensive range of planar capacitor arrays that range from a simple 2-hole unit to a 155-way device with up to four different capacitance values, or a combination of filtered, unfiltered and ground lines. Providing weight and volumetric efficiency along with high performance and reliability make these devices suitable for use in filtered connectors, said the company.
Power resistors feature low inductance, wide resistance range Product News 6/24/2005 Post a comment Vishay Intertechnology, Inc. has extended its family of thickfilm power resistors with the introduction of 30-W, 50-W and 100-W devices in industry-standard TO220 and TO247 packages. The resistors use a ceramic package design (with no metal tab) for direct-mounting onto heat sinks, which improves heat dissipation and reduces board space on PC-boards. In addition, they feature an exceptionally low inductance of less than 0.1 μH, making them suitable for use in power conversion and control appl
Power LED module improves thermal management Product News 6/22/2005 Post a comment Designed for light engines and low-power consumption applications, American Bright Optoelectronics offers a new MagnaBrite 1-watt LED module featuring a new white LED design that incorporates a heat sink base capable of handling forward currents to 350 mA.
LEDs replace neon for signage applications Product News 6/22/2005 Post a comment TT electronics OPTEK Technology offers a family of four-pin high-flux LEDs in a wide spectrum of colors and multiple viewing angles as an alternative to neon for signage applications. Designated the OVF series, these high current "Super-Flux" LEDs are available in white, blue, green, amber, red/orange and red in 7.6 mm2 through-hole packages with water clear lenses that provide viewing angles from 40 to 120 degrees.
Diode arrays feature high level of ESD protection in small package Product News 6/17/2005 Post a comment Extending the company's line of ultra-small LLP-packaged products optimized for data-line protection in compact portable electronics, Vishay Intertechnology has released two new low-capacitance electrostatic discharge (ESD) protection diode arrays that meet a high industry standard for ESD protection.
Schottky diode comes in space-saving package Product News 6/16/2005 Post a comment Central Semiconductor Corp. has introduced its new CMKSH2-4LR triple isolated low VF Schottky diodes packaged in a space-saving ULTRAmini SOT-363 surface-mount package. This new device uses 75% less board space than three individually packaged SOD-123 devices.
IF SAW bandpass filters fit the bill for 3G base stations Product News 6/16/2005 Post a comment Integrated Circuit Systems, Inc. (ICS) has expanded its product portfolio for 3G infrastructure applications with the introduction of seven new high-performance surface acoustic wave (SAW) products for use as intermediate-frequency (IF) filters for all third-generation (3G) base station equipment protocols.
Sensors target broad range of applications Product News 6/16/2005 Post a comment MEDER electronic Inc. has developed several new reed sensors for a variety of applications including appliances, security systems and telecommunications. These magnetic proximity sensors are available in standard PC-board mount and standalone packages with a variety of connectors. They are also available in custom configurations.
Thermal protectors intended for specific applications Product News 6/16/2005 Post a comment Selco Products has introduced a new family of thermal protectors featuring three distinct models, each designed for specific AC or DC market applications. All three models the JP7, the EP2 and the BP offer high reliability overheat protection, automatic reset, a dual-spring mechanism design, and sharp "snap-action" sound upon activation.
SAW filter claims industry's smallest size for cell phones Product News 6/14/2005 Post a comment Murata Electronics North America said it has introduced the industry's smallest single band (SAFEB) and dual-band (SAWEP) SAW filters for the cell phone market, which increasingly demands smaller packaging. The company said it was able to reduce the size and weight of the new devices by combining film micro-machining technology with high-density mounting capabilities and resin sealing.
Capacitors enhance performance Product News 6/9/2005 Post a comment Offering high current, high Q and low equivalent series resistance (ESR), AVX Corp. has introduced a new series of porcelain and ceramic dielectric multilayer capacitor (MLC) chips with a new internal construction that allows for as much as 40 percent lower ESR than in previous versions.
Speed sensor eliminates external switching capacitor Product News 6/9/2005 Post a comment Eliminating the need for an external switching capacitor, Allegro MicroSystems, Inc. has launched a new analog self-calibrating speed sensor that integrates a tracking capacitor for non-true power on-state (TPOS) camshaft applications, providing improved electromagnetic compatibility (EMC) and electrostatic discharge (ESD) protection.
Component orders dip in May, says ECA News & Analysis 6/9/2005 Post a comment Component orders took a small dip in May, continuing a pattern of up and down ordering activity over the first half of 2005, according to the Electronic Components, Assemblies & Materials Association.
Gear-tooth sensors tout several improvements Product News 6/8/2005 Post a comment Allegro MicroSystems, Inc. has added three new gear-tooth sensors to its line of AC-coupled Hall-effect devices that offer a smaller package size and an integrated filter capacitor to provide additional reliability. The new A1421LK, A1422LK, and A1423LK devices are suitable for use in speed, position and timing applications such as transmission and engine management, and can be used in industrial applications.
High-ohmic value resistor provides lower pricing Product News 6/8/2005 Post a comment International Manufacturing Services (IMS) now offers a competitively priced, high-ohmic value resistor due to the use of an innovative, high-volume thickfilm printing process that eliminates the typical high cost associated with individually-produced devices of this type, according to the company.
PCIM: Ultracaps absolvieren Fitnesskur News & Analysis 6/8/2005 Post a comment Wesentliche Fortschritte hat Maxwell Technologies beim Bau von Ultrakondensatoren erreicht: Mit niedrigerem Innenwiderstand und höherer Energiedichte lassen sich diese 'Ultracaps' in neuen Anwendungsbereichen einsetzen.
Ultra-mini RTC crystal targets handheld devices Product News 6/7/2005 Post a comment Saelig Co. Inc. now offers Euroquartz's new EQ157 series of ultra-miniature crystals that provide a 32.768kHz output for real-time clock applications. The devices are housed in surface-mount packages measuring 3.2 x 1.2 x 0.95 mm, making them suitable for battery-powered and handheld equipment.
Wirewound resistor features low TCR and inductance Product News 6/2/2005 Post a comment Ohmite Manufacturing Company has expanded its 10 Series with the introduction of a new four-terminal wirewound resistor. These axial-leaded precision wirewound resistors are specifically designed for low-resistance applications that require high accuracy and high temperature stability.
Ultra-mini crystal fits portable products Product News 6/2/2005 Post a comment Fox Electronics says it has introduced a new ultra-miniature, ceramic surface-mount crystal that is smaller than other crystals on the market with the same level of functionality. Measuring 2.5 x 2.0 mm with a low profile of 0.6 mm, the new FX252B is designed for use in portable and space-constrained devices including laptop computers, PDAs, cell phones, PCMCIA cards, Bluetooth, small rack-mounted equipment and portable test equipment.
Transient tolerant resistors maintain precision, stability under severe conditions Product News 6/2/2005 Post a comment Caddock Electronics Inc. has introduced a series of Type VMR transient tolerant voltage monitoring resistors for industrial and commercial power quality and power metering applications. The non-inductive devices are said to maintain excellent precision and stability when exposed to severe electrical transient abuse (overloads and impulses) and extreme environmental conditions.
Epson's RTC module includes a 32kHz crystal Product News 6/2/2005 Post a comment Demand for smaller and less-power-consuming electronic devices is expected to grow as consumer electronic equipment becomes smaller. Epson's RX-8564LC (3.6 x 2.4 x 1.2mm) meets this challenge, successfully achieving miniaturization and micro fabrication of ICs without sacrificing quality and reliability.
Advantages and Disadvantages of Using DSP Filtering on Oscilloscope Waveforms Design How-To 6/2/2005 1 comment All of today's high-speed real-time sampling oscilloscopes use various forms of digital signal processing (DSP) on digitized oscilloscope waveforms. Some engineers are concerned that filtering digitized data with software may alter the true nature of a captured signal. In this feature article, Agilent Technologies' Johnnie Hancock explains how DSP filtering ultimately can correct for hardware-induced errors to improve measurement accuracy and enhance display quality.
Tri-color LEDs target mobile devices Product News 6/1/2005 Post a comment Featuring one of the industry's smallest package sizes, Agilent Technologies Inc. has introduced two side-firing, tri-color, surface-mount LEDs housed in a miniature 2.5 x 1.0 x 1.0-mm package. Designed primarily for backlighting and as status indicators in handheld devices such as mobile phones and PDAs, these new devices allow handset and PDA designers to mix separate red, green and blue light sources in any combination.
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 ...