Surface Mount Chokes for Data Line ProtectionWith a low profile surface mount design, the new DR332-1 and -2 Choke Series from Datatronic Distribution, Inc., is RoHS compliant and offers highly reliable protection for data lines in noise-prone environments where EMI/RFI emissions frequently hamper the efficient operation of a broad variety of electronic equipment. These small footprint common mode chokes reduce a wide frequency range of unwanted radiated and common mode conducted emissions on balanced twisted pair transmission lines, while passing wanted differential mode DC currents and signals. With inductance values ranging from 5µH to 4.7mH, identified by laser marking, Datatronic has provided EMI noise suppression for a wide band of problem frequencies. Typical applications include modems, instrumentation, telephone switching equipment and more. The new DR332 Series features an inductance range of 5 to 4.7mH with custom values available. The current range is 2.5 to 0.2A; operating temperature range is -40°C to +85°C with a storage temperature range of -40°C to +125°C. For more information, visit 2.45GHz Cable Ferrites The introduction and widespread acceptance of Bluetooth and RFID electronics using the 2.45GHz frequency has prompted the development of a complete line of application-specific ferrites. Leader Tech is offering multiple cable-mounted FerriShield Ferrites that are designed to remove unwanted high-frequency interference signals for applications operating with a peak frequency of 2.45GHz. The frequency-specific Ferrishield Ferrites are offered in several bisected and solid styles to accommodate most round, flat or bundled cable applications. For more information, visit Freescale Unveils MCU Family for Industrial Use Freescale Semiconductor has introduced the MC9S08LG32 microcontroller (MCU) family for industrial use, adding to its portfolio of MCU solutions for LCD-based applications. Featuring an integrated LCD driver, the 8-bit S08LG MCUs are members of Freescale's L family of 8-bit MCUs, providing cost-effective LCD control solutions for a range of industrial and automotive designs. The S08LG family provides cost-effective embedded control and user-interface solutions for electric-metering applications, HVAC controls, digital thermostats, home appliances and exercise equipment. The devices are also suitable for a range of automotive body control applications, such as instrument clusters used in entry-level vehicles for emerging markets. The highly integrated 8-bit MCUs are designed to deliver enhanced EMI and EMC performance through flexible pin reassignment. For more information, visit EM Design Tool for Motors and GeneratorsCobham Technical Services is offering a new version of its Vector Fields Software tool for designing rotating electrical machinery. The electromagnetic simulation software combines the accuracy of virtual prototyping using finite-element analysis with a rapid front-end design tool that allows users to create models of motors and generators in minutes &emdash; allowing users to achieve radical new levels of development productivity. The software is an application-specific toolbox for the Opera Vector Fields Software package, and provides a front end to the electromagnetic simulator that speeds the creation of design models with fill-in-the-blanks dialog boxes. The package comes with templates for a broad range of common rotating machinery including motor types suchas AC induction, brushless, permanent magnet and switched reluctance, plus synchronous motors or generators. Within these basic equipment types, users can choose from a wide selection of component geometries and other options to create their design. For more information, visit Portable Oscilloscopes with Rich Feature Set Agilent Technologies Inc. has six new models that comprise its next-generation 1000 Series. These new scopes offer bandwidths between 60MHz and 200MHz and deliver features normally found on more expensive scopes. The oscilloscopes are available with two or four channels, and each comes in a package that is just 5 inches deep and weighs less than 7 pounds. Starting at $1,200, the Agilent DSO1000A Series oscilloscopes are packed with measurement capability to handle a broad range of debugging and test needs. Agilent 1000 Series oscilloscopes are designed to give engineers more scope than they think they can afford. All 1000 Series models are equipped with a bright LCD display that offers a sharper image and is visible from a much wider viewing angle than competitive scopes. And with up to 20kpts of memory per channel, the 1000 Series allows engineers to use the full sample rate of the scope up to 8x longer than other scopes in its class. For more information, visit LISN for Automotive EMC Testing Westek Electronics has released the Langer NNB21 Line Impedance Stabilization Network (LISN) suitable for automotive conducted interference testing in accordance with CISPR 25/ISO 7637. The standard is applicable to OEM device conducted emission testing including capture of pulses down to the nanosecond level. The unit isolates the DC power source for the device being tested and permits both uni-polar and bi-polar (differential) emission testing. The effective frequency range of the NNB21 is from 100kHz to 1GHz, and two internal attenuators (one in each line) of 10dB permit reliable measurement of RF emission. The unit can handle a maximum supply current of 10A, and a maximum supply voltage of 50V. For more information, visit Ultra-Thin ESD/EMI Embeddable Package Small enough to fit through the eye of a needle, Texas Instruments' latest contribution to IC packaging technology, the PicoStar, is expected to give system designers the option to embed silicon components inside the PCB to free up board space for other purposes. The first device rolled out in this novel package configuration is a compact, ESD/EMI protection device. Key features of this device reportedly include:
For more information, visit New Extended Temperature COTS Filters LCR Electronics now offers a line of single phase COTS filters that operates over an extended temperature range of -40C to +85C (-40F to +185F). The new RoHS-compliant single stage F9100 filters and double stage F9200 filters are ideal for high ambient environments or in applications with limited temperature rise requirements as found in the military, industrial and medical industries. The new 115/250VAC 50/60Hz filters are available with rated current from 5A to 35A, in both general purpose and low leakage current versions. High voltage for both series is 1,450VDC line-to-line and 2,250VDC line-to-ground. Pricing for 100 pieces of the F9100 starts at $12.50 per unit. Delivery is stock to 10 weeks ARO. For more information, visit Keithley Upgrades Model 4200-SCS Keithley Instruments, Inc. has introduced a variety of hardware, firmware, and software enhancements to its award-winning Model 4200-SCS semiconductor characterization system. The Keithley Test Environment Interactive (KTEI) V7.2 upgrade includes nine new solar cell test libraries, an expanded frequency range for the system's capacitance-voltage (C-V) measurement capability, and support for the company's new nine-slot Model 4200-SCS instrument chassis. The new test libraries included in KTEI V7.2 expand the Model 4200-SCS's capabilities for solar cell I-V, C-V, and resistivity testing applications, which are increasingly important, given the growing interest in and governmental support for alternative energy technologies. The software upgrade also supports drive-level capacitance profiling (DLCP), a new solar cell testing technique that was difficult to perform accurately using earlier test solutions. The model 4200-CVU's frequency range has been expanded to 1kHz—10MHz from 10kHz—10Mz to support DLCP testing. This extended frequency range also expands the system's applications, providing support for testing flat panel LCDs and organic semiconductors such as organic light-emitting diodes (OLEDs). For more information, visit L-Glass™ Fiber for Circuit Designs AGY now offers L-Glass™ , a new low-loss glass fiber yarn for printed wiring board (PWB) applications. The low dielectric constant (Dk) and low dissipation factor (Df) properties of L-Glass fiber are ideally suited for designs requiring increased signal speeds and better signal integrity than traditional E-Glass/epoxy substrate materials. At 10GHz, L-Glass fiber has a dielectric constant of 4.86 and a dissipation factor of 0.0050, whereas E-Glass has a dielectric constant of 6.81 and a dissip-ation factor of 0.0060 at 10GHz. The co-efficient of thermal expansion (CTE) of L-Glass fiber is 3.9ppm/°C compared to 5.4 ppm/°C for E-Glass. This makes L-Glass fiber an attractive material for use in IC packaging, where CTE mismatches with silicon are magnified due to the thermal environment and can cause defects. AGY's L-Glass fibers will be available in a variety of yarn counts, that will allow production of low-loss fabrics analogous to styles 106, 1080, 2113/2313, and 2116. Additional yarn counts can be produced as needed to meet market demands. For more information, visit |
