Pushbutton Switches include anti-jamming feature.

Press Release Summary:

Sealed, miniature Series M2B features interior O-ring surrounding actuator within bushing, welded bushing and housing unit, and epoxy-sealed terminals that lock out contaminants. Snap acting contact mechanism gives switches positive actuation and audible feedback. Single or double pole, double throw momentary circuits can be specified. Power rated models are rated 1 A at 125 Vac or 30 Vdc, while logic level models are rated 0.4 Va max at 28 Vac/dc.

Original Press Release:

NKK Switches Offers Process Sealed Miniature Pushbutton Switches

Scottsdale, Ariz. (Nov. 15, 2004) - NKK Switches' continues to lead the electromechanical switch industry with their commitment to provide a full range of switch solutions for today's demanding marketplace.

The M2B series of process sealed miniature pushbuttons switches features an interior o-ring surrounding the actuator within the bushing. The ultrasonic welding of the bushing and housing unit seals out contaminants, which saves them time and money on wave soldering and washing. The bushing and the top of the housing are a single unit construction, giving added protection from cleaning fluids or other liquids. Terminals are epoxy sealed to lock out contaminants such as flux and solvents.

These devices have an anti-jamming feature that delivers long life and high reliable operation. This special feature protects the switch contact mechanism from damage due to excessive actuation force. All bracketed models have crimped legs to insure secure PCB mounting, and to prevent dislodging the switch during the automated processes. The contact mechanism is snap acting which gives the M2B pushbutton switches positive actuation, short travel, light touch, smooth feel and audible feedback. This mechanism also gives the M2B series an electrical life rating of 25,000 operations minimum for silver contacts and 100,000 operations minimum for gold contacts.

Single or double pole, double throw momentary circuits can be specified for the M2B series. Design engineers have a choice of two different plunger lengths and four cap diameters in various colors. These devices are available in straight PC, straight PC with support bracket, right angle and vertical mount terminals. Power rated models are rated 1A @ 125V AC or 1A @ 30V DC. Logic level models are rated 0.4VA maximum @ 28V AC/DC maximum. In addition, gold over silver contacts can be specified to achieve a dual-rated switch.

All models are UL Recognized and CSA Certified. The bushing, housing and base of the M2B series has a flammability rating of UL94V-0.

A leading designer and producer of electromechanical switches, NKK Switches offers one of the industry's most extensive selections of illuminated, process sealed, miniature, specialty and surface mount switches. The company manufactures more than three million toggle, rocker, pushbutton, slide, rotary, and DIPS rotary, keypad and keylock switches. NKK Switches maintains a complete network of qualified representatives and distributors through the United States, Canada, Central and South America, Europe and Asia.

NKK Switches is keenly aware of the myriad of issues that are covered under the RoHS directive. With more than 50 years experience in the switch industry and as an environmentally-conscious company, NKK is committed to not only providing high quality products and services, but also providing environmentally safe products for our valued customers.

For more information contact NKK Switches, 7850 E. Gelding Dr., Scottsdale, AZ 85260. Phone 480/991-0942. Fax 480/998-1435. See the NKK Web site at www.nkkswitches.com

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