Tactile switch keeps its head down onboard

Omron has developed a solderless ultra-low-profile tactile switch that reduces production lead-time for operating parts of portable devices.

Omron has developed a solderless ultra-low-profile tactile switch that reduces production lead-time for operating parts of portable devices.

The single-key type B3D ultra-low-profile dome key can be attached to a printed circuit board (PCB) to make an ultra-low-profile tactile switch.

There is strong demand for ultra-low-profile switches possessing a crisp clicking action (clicking feel), not only for mobile phones, digital cameras and other mobile equipment, but also for operating parts used in industrial applications (controllers, industrial use PDAs etc) and business applications (measuring instruments, communications equipment, etc) where the miniaturisation/lower profile of portable devices continues to increase.

Omron responded to these needs in December 2000 by producing/marketing a solderless sheet switch B3DA ultra-low-profile dome array that received high praise in the industry.

However, a design that corresponds every time to the key layout was vital to customers' needs.

Lead-time took at least several weeks from request until delivery and because an initial investment was necessary for the metal mould, jigs etc, this product could be used for comparatively large lots but not for small-to-medium sized lots.

To handle small-to-medium sized lots, Omron has developed a single-key-type ultra-low-profile dome key that attaches to each key as needed by the customer in making a low-profile operating switch with ease.

Not limited to small/medium sized lots of equipment, it is also well suited for mobile devices scattered with numerous operating switches, mobile devices in which it is required for just one operating part, and for equipment testing.

No soldering is required.

The structure provides strong resistance against electricity due to no soldered terminals.

A highly dustproof ventilated construction is realised through matrix adhesives.

A stainless-steel contact dome achieves a crisp clicking action.

And Omron's proprietary circular contact creates a structure well protected against foreign substances.

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