The company manufactures precision parts, flexible circuits, and EMI/RFI shielding products. Custom light-gauge parts can be produced with complicated patterns, precise tolerances, and burr-free edges. Metals, such as beryllium copper, stainless steel, aluminum, titanium, molybdenum, brass, and spring steel, as well as polyimide film for use in flexible circuits, can be photoetched. A brochure describing the company's capabilities is available. Tech-Etch, Plymouth, MA; tel: 508-747-0300; fax: 508-746-9639; e-mail: sales@tech-etch.com; Internet: http://www.tech-etch.com.

Model ESD 3000 is a 32-kV ESD simulator that is both battery operated and completely handheld, eliminating the need for a base unit, external power supply, and power-supply tether cable. A full range of RC discharge values are available. The unit offers a preselectable number of discharges. Repetition can be set from 50 milliseconds to 30 seconds. HV Technologies Inc., Manassas, VA; tel: 703-365-2330; fax: 703-365-2331; e-mail: emcsales@hvtechnologies.com; Internet: http://www.hvtechnologies.com.

The Interpower NEMA 6-15P power cord is suitable for equipment rated up to 15 A at 250 V ac. Applications include equipment designed for 230-V ac mains voltages. The UL-listed, CSA-certified, cord uses 3 x 14 AWG service junior thermoplastic (SJT) cable. Custom lengths, cable terminations, stripping, and colors are available. Panel Components Corp., Oskaloosa, IA; tel: 800-662-2290; fax: 800-645-5360; e-mail: info@interpower.com; Internet: http://www.panelcomponents.com.

The FOX801BE series of temperature-compensated crystal oscillators (TCXOs) is surface mounted and has a height of 2.0 mm. The footprint measures 9.6 x 11.4 mm. The device offers an inclusive frequency stability of ±2.5 ppm over a frequency range of 10–22 MHz. The operating-temperature range of the device is from –30° to 75°C, and a choice of 3 or 5 V is available. An optional trimmer allows frequency adjustments of ±3.0 ppm, and an optional voltage control creates a voltage-controlled TCXO with a range of either ±5.0 or ±8.0 ppm. Frequencies available include 10.0, 12.8, 14.4, 16.0, 19.2, and 20.0 MHz. Fox Electronics, Fort Myers, FL; tel: 888-438-2369; fax: 941-693-1554; Internet: http://www.foxonline.com.

ARclad 9032 is an electrically conductive transfer adhesive with a durable polyester-film release liner. The 1-mil-thick acrylic adhesive is pressure sensitive and can be used to bond various electronic components. The adhesive is suitable for fabricating EMI shields, electrical interconnections, and ground-plane assemblies for cell phones, computers, PDAs, disk drives, automotive electronics, and other electronic equipment. Adhesives Research Inc., Glen Rock, PA; tel: 800-445-6240; fax: 717-235-8320; Internet: http://www.adhesivesresearch.com.

The Superprox SM906-series sensors are suitable for analog level and distance sensing. The 30-mm ultrasonic sensor is combined with DeviceNet communications capability to reduce wiring harness complexity, decrease wiring costs, increase interconnect reliability, provide device-level diagnostics, reconfigure or adjust device performance, and support interchangeability of devices. DeviceNet is an industrial network that connects devices such as sensors to programmable logic controllers and PCs. The sensors offer ranges of 1, 2, and 8 m, with dead bands of 51, 120, and 203 mm, respectively. The sensors are capable of detecting all materials, liquid, granular, and solid, regardless of color, shape, composition, and transparency. Hyde Park Electronics, Dayton, OH; tel: 937-252-2121; fax: 937-258-5830; e-mail: hydepark@hpsensors.com; Internet: http://www.hpsensors.com.

A dual-elastomer D-subminiature gasket for grounding and RFI shielding offers rear or front mounting with the optional assembly strips. The gasket features a low-compression-set silicone sponge core. The highly conductive outer layer is coextruded and provides very low contact resistance. Custom gaskets are available. Vanguard Products Corp., Danbury, CT; tel: 203-744-7265; fax: 203-798-2351; Internet: http://www.vanguardproducts.com.

The KC-1011 series of dual-band combiners are suitable for use in the cellular and PCS wireless bands. The high-power combiners are employed in pairs to permit the use of a common RF feed line between transmitter/receiver systems and their respective antennas. The device uses multiple-cavity band-pass filters to achieve its rated port-to-port isolation and low insertion loss. The combiner is available with dc pass-through to power tower-mounted preamplifiers or other accessories. Kathrein Inc., Scala Div., Medford, OR; tel: 541-779-6500; fax: 541-779-3991; e-mail: mail@kathrein.com; Internet: http://www.kathrein.com.

Twisty-Flex circuits provide the noise reduction of twisted wire pairs in a flexible circuit. The two-layer design uses alternating conductors connected between layers by microvias. The circuit is suitable for integrating high-frequency impedance-matched conductors with dc or other signals in a single flex design. The circuit can be used as a signal carrier between the antenna and the main board, a board-to-board jumper, or a combined signal- and power-carrying circuit. Minco Products Inc., Minneapolis, MN; tel: 763-571-3121; fax: 763-571-0927; e-mail: sales@minco.com; Internet: http://www.minco.com.

The SMV1763-079 is a silicon hyperabrupt junction varactor for 3-V platforms. The device features a high capacitance ratio and low reserve voltage, making it suitable for low-phase-noise voltage-controlled oscillators in wireless systems with frequencies up to and beyond 2.5 GHz. The tuning varactor is manufactured in an SC-79 package and is available in tape and reel. Alpha Industries, Haverhill, MA; tel: 781-935-5150; fax: 978-241-7906; e-mail: sales@alphaind.com; Internet: http://www.alphaind.com.

A line of alligator-clip test leads is suitable for a range of telecommunications test applications. Designed for use with equipment having either bantam or banana jacks, the wire-piercing test leads eliminate the need for insulation stripping. The test leads attach to blade-shaped or threaded terminal screw heads and bare wires. The test leads are available in eight model configurations to meet a variety of test requirements, including piercing wire sizes from 14 to 26 AWG. Needle options include a row-of-points, single-needle, bed-of-nails, and a combination bed-of-nails and single-needle type. All test-lead types feature an angled, U-shaped nose; serrated teeth; and a notched jaw. Pomona Electronics, Pomona, CA; tel: 909-623-3463; fax: 909-629-3317; Internet: http://www. pomonaelectronics.com.

The redesigned 3130-series thermal circuit breaker is available in a variety of configurations, including a metallic frame, choice of rocker switch colors, markings for indication, custom symbols, and water-splash protection. Ratings range from 1 to 20 A for single-pole applications. The device is suitable for systems rated up to 250 V ac and 50 V dc. E-T-A Circuit Breakers, Mt. Prospect, IL; tel: 847-827-7600; fax: 847-827-7655; e-mail: usinfo@etacbe.com; Internet: http://www.etacbe.com.

A control indicator module for power circuit breakers features a built-in serial link. The unit can control and monitor up to three trip coils for integrity while providing a local fail-safe switch. The unit can trip and close a breaker from a manual control switch, a signal from a protective relay device, or a remote signal. The module can also be supplied with an 8-bit parallel interface. Electroswitch, Weymouth, MA; tel: 781-335-5200; fax: 781-335-4253; Internet: http://www.electroswitch.com.

The SMP 1812 series of surface-mount inductors is suitable for microprocessor and distributed-power applications, including power supplies, power regulators, and dc-to-dc convertors. Inductance ratings range from 1 to 330 µH, current ratings range from 124 to 2018 mA, and saturation current ratings range from 129 to 2500 mA. Radio-frequency versions of the inductor are also available. Gowanda Electronics, Gowanda, NY; tel: 716-532-2234; fax: 716-532-2702; e-mail: sales@gowanda.com; Internet: http://www.gowanda.com.

The Cho-Form 5541 is a form-in-place gasket that provides EMI shielding and resistance to galvanic corrosion when dispensed onto bare-metal electronic housings. The 5541 gasket is a single-component silicone elastomer containing nickel-plated graphite particles. Shielding effectiveness is >70 dB from 200 MHz to 10 GHz. The gasket meets UL 94V-0 flammability requirements. Chomerics, Woburn, MA; tel: 781-935-4850; fax: 781-935-4318; Internet: http://www. chomerics.com.

The PSA100U power adapter features 85% efficiency with an output of 100 W. The unit has a universal ac input and worldwide electromagnetic compliance. The adapter meets FCC Class B and EN 55022B conducted noise limits. The unit measures 35 cu in. and weighs 0.62 kg. Both 24- and 48-V-output versions of the adapter are available. Phihong, Fremont, CA; tel: 510-445-0100; fax: 510-445-1678; e-mail: usasales@ phihongusa.com; Internet: http://www. phihongusa.com.

The DS-Q3 series cap provides ESD protection for D-subminiature connectors. The cap is constructed from an inherently conductive polymer compound and features an exclusive nonsloughing material to meet the M5501/32 requirement. The cap, which features a flanged top for easy placement and removal, has a volume resistance of 10⁵ W. Niagara Plastics Co., Erie, PA; tel: 800-458-0465; fax: 800-358-4391; Internet: http://www.niagaraplastics.com.

Metal-oxide varistors are available in seven sizes ranging from 5 to 20 mm, with voltage ratings from 18 to 18,000 V. The surge-suppressing varistors have high-performance clamping characteristics. A series of 25- to 40-mm high-energy varistors is also offered. Surface-mount varistors are available in sizes from 0603 to 1210, with voltage ratings from 36 to 120 V. Ventronics, Kenilworth, NJ; tel: 908-272-9762; fax: 908-272-7630; e-mail: ventronics@prodigy.net.

The PackBme provides EMI filtering and transient overvoltage protection for keyboard and mouse ports. The single-chip device offers in-system ESD protection against contact discharges up to 30 kV, as per IEC 61000-4-2. The compact device terminates the two data lines for the keyboard or mouse port. The device is available in a surface-mount SOT23-6 package. California Micro Devices, Milpitas, CA; tel: 800-325-4966; fax: 408-263-7846; Internet: http://www.calmicro.com.

The 3880-DIN is a surge-protection receptacle module suitable for mounting on DIN rails in equipment cabinets. Applications include suppressing plug-in transient voltage surges for cord-connected test equipment and portable computers. For use on 120-V single-phase ac power sources, the module provides metal-oxide varistor–based normal- and common-mode protection. The UL 1449 suppressed voltage rating is 400 V peak L–N, L–G, and N–G. Leviton Manufacturing Company, Inc., Little Neck, NY; tel: 800-323-8920; fax: 800-832-9538; Internet: http://www.leviton.com.

Single-, double-, and triple-row through-hole headers and stackers, surface-mount board stackers, and shrouded headers are available for 2.54-mm-pitch applications. Mating sockets include standard and ultralow-profile, and pass-through and skyscraper design options. For micropitch applications, board stackers are available on 0.8-, 1.0-, 1.27-, 1.27 x 2.54-, and 2-mm pitch. In addition, 2-mm-pitch sockets may be specified in increments of 0.13-mm board spacing. Samtec Inc., New Albany, IN; tel: 812-944-6733; fax: 812-948-5047; e-mail: info@samtec. com; Internet: http://www.samtec.com.