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Pressure Switches Implement Magnetic Sensing

September 25, 2008 8:35 am | Comments

The CSS Series and CSC Series of current pressure switches from Setra Systems utilize magnetic current sensing technology. They are intended for HVAC/R, industrial, and lighting applications that use electric motors to drive fans, pumps, and blowers, and for sensing the status of heating coils and lighting. These solid-state switches are offered with industry standard 135 Amp or 200 Amp output

Smaller SSDs Replace Traditional Drives

September 25, 2008 7:16 am | Comments

Available in densities of 8 GB, 16 GB, and 32 GB, Low-density solid state drives (SSDs) from Samsung are 30 percent smaller than 2.5-inch SSDs and use the same SATA II controller technology as that being used on Samsung’s just-introduced MLC-based 128 GB SSD. The SSD at 32GB capacity will read data (sequentially) at 90 MB/s and write it (sequentially) at 70 MB/s. The 16 GB reads

Yagi Antennas Operate at 2,500 MHz

September 25, 2008 6:48 am | Comments

Fulfilling moderate to high gain directional requirements at 2.4 GHz, Astron Wireless Technologies’ P2400 Series yagi antennas demonstrate a frequency range from 2,375 MHz to 2,500 MHz. The devices include 4 levels of gain, a wideband design for coverage without


IEPE Accelerometer Offers 10 mV/g Sensitivity

September 25, 2008 5:34 am | Comments

Weighing in at 0.2 grams, Dytran Instruments’ 3224A1 IEPE accelerometer presents a sensitivity of 10 mV/g. The “teardrop”-designed component operates at temperatures up to 300°F with integrated electronics, an adhesive mount, and a planar shear ceramic design. The accelerometer is suitable for environmental stress screening, PC board vibration

Front End Power Supplies Exhibit High Efficiency

September 24, 2008 11:48 am | Murata Power Solutions Inc. | Comments

Possessing a power density up to 17.9 W/in.³, Murata Power Solutions’ D1U4-W Series AC/DC front end power supplies deliver power with efficiency of up to 90.9%. The 355.6 mm × 101.6 mm × 41 mm 1U-housed devices offer output power of 1,600 W (220 VAC) or 1,200 W (110 VAC), main output voltages of 12 V, and standby output of

Sensing Chip Resistor Offers Low Absolute TCR

September 24, 2008 10:40 am | Comments

Using Z-Foil technology, Vishay Intertechnology’s VCS1625Z SMT current sensing chip resistor demonstrates an absolute TCR of ±0.05 ppm/°C from 0°C to 60°C and ±0.20 ppm/°C from -55°C to 125°C with a 25°C ref. The device exhibits power coefficient ("?R due to self heating") of ±5 ppm at rated power, a tolerance of ±0.20%, and load-life stability of

Heaters Target Hazardous Areas

September 24, 2008 7:37 am | Comments

Having a NEMA 4 rating, Omega Engineering’s CREX020 Series hazardous area convection heaters perform in areas with explosion hazard. The devices prevent the formation of condensation and temperature fluctuations, and protect against frost in transmitter housing, switch cabinets, and measuring equipment. The heaters deliver a heating capacity of

SSLD Presents 10 mA Output Current Sink

September 24, 2008 6:10 am | Comments

Driving up to 10 LEDs of any color individually, PREMA Semiconductor’s PR4010 10-channel SSLD exhibits a current sink up to 10 mA for each of the 10 SSLD outputs. The SSOP-packaged component offers a serial interface with latched input and current variation between


Silicon Carbide Power Transistors Offer Improved Performance

September 23, 2008 12:09 pm | Comments

Operating in motor drives, DC/DC conversion, welding systems and power electronics, TranSiC’s silicon carbide (SiC) BITSIC-1220 and BITSIC-1206 NPN power bipolar junction transistors operate at 225°C, have negligible storage time delay, provide independent switching, handle short-circuits and have immunity to cosmic rays. The 3.40 mm × 1.85 mm BITSIC-1206 offers collector current from 6 A to 20 A

Recovery Rectifier Yields High Switching Speed

September 23, 2008 10:58 am | Comments

Coming in the GPR-4AM voidless glass-bead axial-leaded case, Central Semiconductor’s CPR5U-040 5 A 400 V recovery rectifier exhibits a switching speed of 25 ns. The 660°C metallurgical-bonded component operates in commercial, industrial, entertainment, avionics, and automotive applications, switch mode power supplies and half and full wave

ICs Manage Power Digitally

September 23, 2008 7:48 am | Fairchild Semiconductor | Comments

Complying with Energy Star specifications, Fairchild Semiconductor’s FD2004, FD2004-01 and FD2006 digital power controllers and FD1505 digital power support driver use Fairchild-Zilker’s Digital-DC architecture to manage power digitally. The 5 mm² 32-lead or 6 mm² 36-lead QFN-packaged controllers offer an input voltage range from

Battery Monitoring IC Measures 12 Cells

September 23, 2008 6:45 am | Comments

Stacking in series without optocouplers or isolators, Linear Technology’s LTC6802 multicell battery monitoring IC has the capability to measure up to 12 individual Lithium-Ion battery cells within 13 ms. The 8 mm × 12 mm 44-lead SSOP-packaged device performs in stack voltages over 1,000 V with <0.25% max. measurement error from -40°C to 85°C and

Power Supplies Demonstrate High Efficiency

September 23, 2008 5:39 am | Comments

Possessing a power density of 11 W/in.³, Emerson Network Power’s LPS200-M Series 250 W AC/DC power supplies have a typical full load efficiency of 88%. The 3” × 5” × 1.5” devices offer a universal 90 VAC to 264 VAC input, operation from a 120 VDC to 300 VDC input and an 12 VDC or 24 VDC main output with 16 ms min. hold-up time with


Reference Design Enables 12 A Power Modules

September 22, 2008 11:50 am | Comments

Utilizing a LM3495 PWM buck regulator, Avnet Electronics Marketing’s and National Semiconductor’s PMRD-0012 power module reference design exhibits output current of up to 12 A. The component offers an input voltage range from 3.3 V to 15 V, an adjustable output voltage range from

Lens Works with VGA Image Sensors

September 22, 2008 10:42 am | Comments

Using wafer-level camera (WLC) technology, Tessera Technologies’ OptiML WL-VGA-1E single-element VGA lens for cell phone camera modules performs with 2.2 µm pixel VGA image sensors. The liquid crystal polymer device offers two optical surfaces, an integrated infrared filter, reflow compatibility and 2.1 mm optical track length. The Pb-free lens presents


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