Thursday, May 24, 2018
Publication Date: 05/1/2008
Archive >  May 2008 Issue >  Product Preview: EDS > 

NKK Intros Washable PCB-Mounted Switches
Submin washable switches.
Scottsdale, AZ — NKK Switches has introduced the M2T and M2B series miniature toggle, rocker and pushbutton switches. The affordability of these PC board-mounted devices makes them the appropriate choice for designs requiring cost reductions, without compromising quality, integrity or high reliability. These switches encompass a wide range of styles and options designed to provide engineers with the perfect switch for each application.

M2T toggles and rockers, along with M2B pushbuttons, have an interior bushing area that is sealed with an O-ring surrounding the actuator. The ultrasonic welding of the bushing and housing unit seals out contaminants and allows wave soldering and cleaning. The bushing and top of the housing are 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. An anti-jamming feature protects the switch contact mechanism from damage due to unusual actuation force, ensuring long life and high reliability operation. All bracketed models have crimped legs to ensure secure PC board mounting and to prevent dislodging of the switch during automated processes. The contact mechanism is snap-acting, giving the M2T and M2B positive actuation, light touch, smooth feel and audible feedback. This mechanism also gives the M2T and M2B series an electrical life rating of 25,000 operations minimum for silver contacts. M2T series switches are also rated for 50,000 operations for gold contacts, while the M2B series has a rating of 100,000 operations minimum.

The M2T and M2B series are UL Recognized and CSA Certified with a flammability rating of UL94V-0. The M2T toggles and rockers are available with ratings of 6A at 125VAC, 3A at 250VAC, 3A at 30VDC and 0.4VA maximum at 28VAC/DC maximum. The M2B pushbuttons can be specified with ratings of 1A at 125VAC, 1A at 30VDC or 0.4VA maximum at 28VAC/DC maximum.

Each model can be specified single or double pole and switches are available in a variety of double throw circuit configurations including momentary and maintained action. The mechanical life for toggles and rockers is 100,000 operations minimum, while pushbuttons have a mechanical life of 200,000 operations minimum. The operating temperature range for all models is -30 through +85°C (-22 through +185°F).

Contact: NKK Switches, 7850 E. Gelding Dr., Scottsdale, AZ 85260 480-991-0942 fax: 480-998-1435 Web:

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