Electronics

Accelerometer

Solves measurement problems

The Model 7240C lightweight, piezoelectronic miniature accelerometer measures high-frequency vibration under high temperatures and without environmental contamination. Operating from -67 to 500F, the unit is hermetically sealed. It includes a PIEZITE^® Type P-8 crystal element and special, low-noise coax cable. Applications include automotive, aerospace, and OEM products. Endevco Corp., www.endevco.com Enter 651

Position sensor

Free-floating position magnet

Magnetostrictive position sensors for machine control and factory automation applications are small but reportedly robust. Features include a waveguide sensing element, conditioning electronics, protective metal housing, and external position magnet. Each comes with standard mounting feet and screws, and is available from 4 to 60 inches long. MTS Temposonics, www.mts.com Enter 652

Ethernet controller

For power less than 13W

The LTC4257 power-over-Ethernet interface controller connects powered devices to networks, incorporating the signature resistance, programmable classification, power switching, in-rush current limiting, and fault protection. The unit interfaces with dc/dc converter products for use in IP phones, wireless access points, and more. An integrated 100V power MOSFET keeps the PD circuitry disconnected from the Ethernet cable until input voltage reaches a valid level, the company reports. Linear Technology, www.linear.com Enter 653

Audible warning device

High sound alert level

Model TRSIE-1205 audio indicators are used in dangerous-gas detection devices and produce an 85 dBA minimum at 5.0V dc operating voltage at 2,400 Hz. Transducers operate at temperatures ranging from -40 to 70C. The indicator package measures 12.8x 12.8 x 4.7 mm and is surface mounted. Transducers USA, www.tusainc.com Enter 654

Male connector

Waferized architecture

Grow your system horizontally by creating backplane components in right angles. The VHDM^® 8-row, right angle male connector provides 100 signals per inch for applications like cable I/O interfacing to the edge of the daughtercard; planar extender cards; and straight I/O into the female connector. The 8-row RAM connector is modular, allowing the RAM wafers to be combined with power and guidance wafers. Molex Inc., www.molex.com Enter 655

Low-power switchers

Wide voltage input range

Low-power switching units offer 4.5W/inch³ and deliver up to 13A from the primary output. Designed for 1U installation, Models LPT82 and LPT83 include over-voltage protection, power factor correction, input range of 85-265V ac, remote voltage sensing, and a power-fail output signal. Units have UL, CSA, CE, CB, NEMKO and VDE approvals. Astec Power, www.astec.com Enter 656

Resistor chips

Total resistance from 100V to 240 kV

MTR and MTT thin film, wire bondable multi-tap resistor chips simplify the design and trimming of hybrid circuits, the company claims. Offering stability over time and temperature, MTR chips include up to 11 taps and MTT up to 19. MTRs are 0.03 inch², while the MTT is 0.038 inch². All chips feature a highly stable, self-passivating tantalum nitride resistor. Aluminum is standard; gold pads are available. Vishay Intertechnology Inc., www.vishay.com Enter 657

Coils

Special voltage, materials available

AE30 Series coils are available in 12-24V dc, 24-110-230V ac, and 50/60 Hz in continuous service, with maximum overvoltage 10 percent of nominal. They are made with metal oxidation protection, a plastic encapsulated magnetic circuit, and IP54 protection. The standard product is black, with Class H wire rated for 200C. Operating temperatures are from -30 to 70C. AE. CAS; www.aecas.it Enter 658

Closure caps

Loose or assembled

Enclosure caps protect unused eurofast^® M12 ports on junction boxes and cordsets. Made of nickel-plated brass, stainless steel, or plastic, the caps are available with or without lanyards. They are also available on the company's cordset products. Applications include covering assemblies in washdown, outdoor use, and food, chemical and pharmaceutical processing. TURCK Inc., www.turck.com Enter 670

Transient power supply

Preload voltage setpoints

Designed to meet the test needs of handset and cellular component manufacturers, Model 2306-VS dual channel, fast transient power supplies allow externally triggered output voltage level changes with measurement capability. Measurements include voltage, load current, pulse currents, and independent digital voltmeter readings. The product features faster test speed and automated voltage stepping. Keithley Instrumentswww.keithley.com Enter 671

Compact transducer

High-decibel unit

Compact piezo transducers are designed to be smaller and louder than previous models, the company reports. Each AT-130 is 13-mm wide and 2.5-mm high, rated at 88 dB at 10 cm, with voltage rated at 10 Vp-p. Resonant frequency is 4,800 Hz, ±500. The product is designed for battery-operated portable devices like PDAs, medical and test equipment, and cameras. Projects Unlimited Inc.www.projectsunlimited.com Enter 672

Radio processor, modem

For small form Bluetooth^® products

UltimateBlue^™ 3000 radio processor and the SiW1712^™ radio modem are available as stand-alone, bare die products. Fully tested and ultra-thin, the devices are designed for high-density integration into miniature assemblies like those in mobile phone modules, the company reports. The processor combines a direct conversion radio modem with an ARM7TDMI^® processor core. Silicon Wave; www.siliconwave.com Enter 673

Uninterruptible power supply

Low input current harmonics

Uninterruptible power supply systems are available in capacity ratings of 30 kVA, 50 kVA or 80 kVA. The products are double conversion UPS modules with 480V input and 480 or 208V output. Two modules of like capacity can be run in parallel for system redundancy. Each units has an internal wrap-around zero energy bypass system for maintenance flexibility. Features include dual inputs, automatic restart and retransfer, ripple-free dc output and a large overload/overcurrent capacity. Mitsubishi Electric Automation, www.meau.com Enter 674

Time meters

Equipment or switchboard styles

An elapsed-time meter product line includes a series of hour meters designed to monitor ac and dc electrical apparatus and machinery. The panel-mounted products are available in several configurations and package styles. Applications include emergency generators, electrical furnaces, and rental, welding, and transportation equipment. These non-resettable meters have a counting range of 99,999.99 hours for ac inputs and 999,999.99 hours for dc inputs. Yokogawa Corporation of Americawww.us.yokogawa.com Enter 675

Touch panels

1/4 wave retarder, polarizer

Custom 4- and 7-wire resistive touch panels are circularly polarized, and easily readable in direct sunlight. The panels eliminate more than 60% of ambient light, have 3H minimum surface hardness, and are suitable for pen or finger input. Designed for use with transmissive LCDs, applications include portable outdoor kiosks, navigation systems, industrial instruments, and test equipment. Fujitsu Components America Inc.www.fcai.fujitsu.com Enter 676

Fiber optic panels

Senses electromagnetic fields

UniGlo^® fiber optic panels reportedly improve the backlighting of control panel LCDs for portable equipment that locates underground cables and pipe. The instruments are used by telecom, power, CATV, gas, water, and sewage companies. The control panel gives data such as signal strength, depth of cover, operating mode, and battery status. Poly-Optical Products, Div. of Lumitexwww.poly-optical.com Enter 677

DC-AC inverter

Prevents cross-talk

Offering multiple, fully encapsulated transformers for reliability, the MS Series dc-ac inverter provides up to 45W output for backlighting large LCDs. Designed for units over 20 inches and powered by six cold cathode fluorescent lamps, each transformer backlights one lamp in each cluster. The MS Series features onboard pulse width modulation dimming with analog control. Endicott Research Group, www.ergpower.com Enter 678

Level sensors

With noise immune circuitry

Set-and-forget capability is one of the features of the KN Series capacitive level sensors, which detect low-dielectric materials in plastics processing applications. The sensor resists high levels of electrostatic discharge and its noise immune circuitry ignores interference from motor drives and switching power supplies. Features include a dome LED for viewing from a distance, sight glass or direct mounting, and ac or dc models. ifm efector, www.ifmefector.com Enter 679

Miniature lamps

Use standard sockets

Miniature LED lamps are used for a wide variety of applications. Available in sub-midget, midget, and miniature, LEDs are high-intensity, solid state lights that resist shock and operate for over 100,000 hours. They are maintenance free, and directly mount in industry standard sockets with built-in current limiting resistors. The lamps replace incandescent bulbs in many applications. LEDtronics Inc., www.ledtronics.com Enter 680

Air removal unit

Ducted exhaust removes heat

High-density rack IT units help cool equipment using NetworkAIR^™ air removal units. The system eliminates hot spots by circulating cool air throughout the racks. The units help overcome cord and cable clutter heat by increasing air flow without taking up a lot of space, the company reports. Energy efficient fans adjust automatically to maintain correct temperatures. Ducted exhausts remove heat from the room. American Power Conversion, www.apc.com Enter 681

Fiber optic switching

12-channel connection available

Fiber optic switching devices combine glass and plastic for optical design flexibility. The devices enable a short focus length and can be fabricated at high speeds. These 2x2 and 1x8 optical switches feature small MEMS-scale packages and reportedly consume less power (100 mW). They are designed for applications where the cables deliver communications to homes and businesses. Omron Electronics LLC, www.omron.com Enter 682

Multi-pole connector

Follows standard color codes

The SB350 multi-pole connector features spring-loaded, silver plated contacts that self-wipe during the mating process. Rated at 350A, 600V and continuous ac and dc operation, the SB350 offers replaceable contacts, keyed housings and is hot pluggable. Its single-piece housing protects in harsh environments and meets UL94 V-O requirements for flame resistance, the company says. Anderson Power Productswww.andersonpower.com Enter 683

Connection cables

PVC and PUR sleeves

The 4-pole, S12 connection cables include standard versions with PVC and PUR sleeves, straight or right-angle executions and 2, 5, and 10m cable lengths, according to the company. Available from stock in quantities including 100-packs, the 4-pole connectors are in addition to the standard S8 and S12, 3-pole types. Contrinex Inc.www.contrinex.com Enter 684

Interconnect assembly

No assembly required

Solderless component assemblies offer complete interconnection solutions for portable device OEMs, the company says. Assemblies include an electronic component such as microphone or speaker, a rubber boot, and an elastomeric connector. The boot holds and aligns the component in the elastomer. The assembly compresses into the front cover of devices like cell phones and PDAs. Tyco Electronicswww.elastomerictech.com Enter 685

SAR converters

No latency conversion

Analog-to-digital converters offer two mega-samples per second and 16-bit successive approximation. The ADS8411 and AD8412 SAR converters are available in pin-compatible packages and are designed for high-speed, high-resolution applications like medical imaging, portable medical instruments, data acquisition, automated test equipment, and optical networking. Texas Instruments Inc.www.ti.com Enter 686

Automotive relay

Epoxy sealed case

Small and versatile for PCB applications, the AZ989 sub-micro automotive relay is a 12V product with either a 180 or 225V coil and maximum switched power rating of 480W. Relays are offered in Form C contact arrangement in epoxy sealed cases. Applications include power windows, door locks, seat adjusters, sunroofs, lift gates, and wiper motors. American Zettlerwww.azettler.com Enter 687