Electronic Design

Switches And Relays

SIP Reed Relays Can Last From 10 Million To 100 Million Cycles
The models in three families of SPST-type SIP relays employ a deactivated rhodium OKI reed switch to ensure long life without any sticking. Life expectancies for the various devices range from 10 million to 100 million cycles, depending on voltages.

The 700 series measures 1 in. long with 0.2- by 0.4- by 0.2-in. pin spacings. Its switching current ranges from 0.5 to 1.0 A, while its carry current reaches from 1.0 to 2.5 A. Next, models in the S1A series are 0.75 in. long by 0.20 in. wide, with 0.2- by 0.2- by 0.2-in. pin spacings. The S1A's current is 0.5-A switching and 1.0-A carrying. The relays in the third set are just 0.61 in. long by 0.16 wide on 0.155- by 0.155- by 0.155-in. pin spacing. They switch 0.25 A and carry 1 A.

Contact the company for pricing and availability information.

Hasco Components International Corp., 249-50 Jericho Tpke., Bellerose Village, NY 11001; (516) 328-9292; fax (516) 326-9125; www.hascorelays.com.

DIP Switch Product Lines Provide Flexibility For Multiple Applications
Designers who need some kind of switching solution can look to five lines of DIP switch products. Half the size of other older-style DIPs, the TDA models improve sealing through removable Kapton tape. These SPST devices come in two, four, six, eight, and 10 positions and have a 1000-cycle mechanical and electrical life. The high-pressure-gas tight contact system in the SDA line doesn't require tape sealing. SDAs are available in surface-mount and through-hole packages.

The side-actuated switches in the BPA series come in through-hole and surface-mount versions as well. Their long actuators act as a lever on the contact, providing easy operation. The CRD is a rotary-coded 10-mm device in the CD series. It has been designed for address-switching applications. And, the devices in the SP series of single in-line packaged components use less than half of the pc-board space of equivalent DIPs. They come in vertical or right-angled through-hole versions.

Contact the company for pricing and availability information.

C&K Components Inc., 57 Stanley Ave., Watertown, MA 02472; (800) 635-5936; fax (617) 926-6846; www.ckcorp.com.

Rocker Switches Designed For Style And Performance
The StyleLine series of GRS-2000 rocker switches comes with radiused corners and contour styling. Available in high-gloss and matte-finish in white, black, and almond, these switches snap into standard-size openings commonly associated with typical rocker switches. They're designed for use in upscale appliances, recreational equipment, medical and scientific devices, testing equipment, computers and peripherals, and other applications where performance and style are important.

These switches use the dual rotating and sliding action of moving contacts to maintain cleanliness, reliability, and extended life. Versions operating at 16 A at 125 V ac and in SPST, SPDT, and SPDT-CO are available. They mount quickly without hardware. Designers can connect them easily with standard 0.25-in. quick-mounted terminals or other wiring options. Custom-tailored StyleLine switches are available as well.

Contact the company for pricing and availability information.

CW Industries, 130 James Way, Southampton, PA 18966-3838; (215) 355-7080; fax (215) 355-1088; www.cwind.com.

C-Frame Solenoids Suit Computer Peripherals And Other Applications
The SCN1624 series of C-frame pull-type solenoids give designers stock and custom plunger designs. They're designed for short-stroke, high-force applications that use low power. Typical applications include computer peripherals, office machines, medical equipment, and general instrumentation. Measuring just 0.579 by 0.658 by 0.760 in., they feature optimized force/stroke characteristics and easy, threaded baseplate mounting. Also, they include coils for operation on 3, 6, 12, or 24 V dc with maximum holding forces up to 6 oz.

Availability is from stock. Contact the company for pricing information.

Bicron Electronics, 50 Barlow St., Canaan, CT 06018; (860) 824-5125; fax (860) 824-1137; www.bcrn.com.

Safety Switch Tamper-Proofs Doors In Electronic And Packing Industries
The low-profile GSS series hinge-mount safety limit switch is designed for general-duty safety door-interrupt applications in the packing equipment, electronic assembly, and specialty equipment industries. Typical applications include dual-direction access doors, access doors with space limitations, and operations where tampering is a concern and internal mounting is desired.

Switches in the series have been approved by CE, CSA, UL, and BG and sealed to IP66 and NEMA 1, 4, 12, and 13. Zinc die-cast and plastic housings are available. So are left, center, and right actuator styles. Contact-block choices include 1NC/1NO, 2NC, 2NC/2NO, 3NC/1NO, and 4NC. Their operating temperature ranges from −25°C to 85°C. Customers can choose from three actuator styles as well.

Contact the company for pricing and availability information.

Honeywell Inc., 101 Columbia Rd., Morristown, NJ 07962; (800) 707-4555; fax (973) 455-4807; www.honeywell.com.

Micromachined Relays Boast 0.5-ms Switching Speeds
The Micro Machined Relays will be available in two versions: a chip model and a plastic leaded chip carrier (PLCC) model. The chip device will measure 2.0 by 3.0 mm, while the 6-pin PLCC will be 5.25 by 5.30 mm or smaller. Both will be etched from a silicon wafer. They will be able to switch at 0.5 ms, while traditional relays switch at about 6.0 ms. Additionally, these relays will sport a life expectancy of 1 billion operations. According to their manufacturer, they'll provide more current isolation, reduce pc-board real estate, and decrease power consumption compared to conventional RF relays.

Availability will begin next July. Prices will start about $5 per unit.

Omron Electronics Inc., 1 Commerce Dr., Schaumburg, IL 60173; (800) 55-OMRON; fax (847) 843-8081; www.info.omron.com.

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