Non-Customized Switches

The Hall Company offers a standard "off the shelf" switch; a 3.5" x 4.0" available in up to 16 keys or a single key "Big Switch". This switch can be offered "as is" or with a variety of formats for your use. Keys can be tactile or embossed, the graphic can have your custom logo and color combinations, the assembly can be adhesive backed or supplied with your choice of backplate thicknesses. Please check our prices below.

	Pricing Chart for The Hall Company's standard switch.
	Standard Switch inspection print.

Customized Switches

The Hall Company offers a variety of customization techniques; limited only by your application and imagination.

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Tactile Feedback

The Hall company manufactures three styles of stainless steel domes for your use. They are:
	1. 0.350" Circular Dimple Dome
	2. 0.410" Triangular Dome
	3. 0.500" Circular Dimple Dome


Additionally, we have a variety of purchased domes ranging in size and shape with tactile feedback from 8-16 oz.

The 0.410" Triangular Dimple Dome is the most versatile of the domes and is available in actuation forces of 8 oz. and 12 oz. Being triangular in shape, this dome lends itself to PC-board applications that may require traces being run between feet. This dome also provides the space necessary to use a LED lamp in the corner of a key; if required. The 0.500" and 0.350" domes each require approximately 8 oz. of pressure and are excellent for the average application. All domes are rated at a minimum of 1,000,000 actuations.

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Graphic Embossing

The Hall Company can add quality embossing to enhance the appearance and operation of your keypad. Embossing on the graphic layer can perform three functions:
	A. Create a locator for each individual key by touch.
	B. Allows a tactile dome more freedom of movement.
	C. Visually enhances the appearance of the switch assembly.


Two types of standard embossing are available:
	1. Perimeter Emboss adds a raised edge around the key. This will form a well for ease of use in locating the key.
	2. Full Pillow Emboss raises the key from the background surface. This gives the key a 3-D look and feel. Embossing is not limitted to keys; logos, specific text and other cosmetic items can be embossed, as well. (recommended when using stainless steel domes).

Tolerances
We recommend an emboss width of 0.032 inches or greater (Perimeter Key Emboss). Spacing between each individual key should be a minimum of 0.250 inches to assure adequate adhesion to the mating switch surface. The height of the emboss should not exceed 150% of the thickness of the material. In most instances we are utilizing 0.007 inch thick material with an emboss height of 0.010 inch.

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Support Devices

Support panels, often termed "backplates" can be supplied by The Hall Company. Most applications utilize aluminum with punched holes for mounting, tail exits or display windows. We also offer studs and standoffs to mount your display or circuit board to the backside. Aluminum backplates are available unfinished, clear or a black anodized finish. Other finishes are available, contact The Hall Company for your specific needs.

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Computer Color Matching

Color matching systems such as the PANTONE MATCHING SYSTEM swatches will, over time and exposure to light, vary from book to book. If feasible, and where specific matches are critical, we recommend that you provide a color chip. Also, the specific lighting which affects this product in its normal operating environment should be identified. As part of the color mixing/matching process, a MacBeth light booth (which simulates varied lighting) will be used, as well as natural lighting to achieve an exact color match.

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Tail Termination

The Hall Company provides a variety of termination types to meet your requirements. Both male and female crimp connectors, as well as solder tabs are available for flexible-switch constructions. PC-Board termination are numerous, and should be identified by manufacturer and part number on your drawings. The Hall Company typically installs Berg, and AMP connectors.

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Transparent Colors

If your application requires a tinted window display or colored LED or LCD windows, The Hall Company will custom mix a transparent color to enhance the appearance of your display.

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Shielding

The Hall Company offers shielding that will protect against EMI, ESD & RFI. This protection can be handled by aluminized polyester which will protect against all three types of interference, conductive silver for EMI or ESD and carbon; which will protect against ESD. We also offer protection in transparent windows with the use of Indium Tin Oxide or ITO. Any one of these protections can be terminated via the circuit tail or a separate tail. If a metal support panel is included, these conductive layers may be electromechanically connected. (For more information regarding shielding, see "Shielding" under the "Knowledge Base" page of this site.)

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Insertable Legends

If your panel nomenclature needs to be changeable, we suggest insertable legends. Small pockets can be incorporated over the key areas that will allow a legend strip to be positioned under the overlay to give the ability to quickly change nomenclatures.

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Overlay Materials

Various types of materials & finishes are available (dependent upon your application environment). Please refer to the Graphic Materials section of the Knowledge Base for chemical and environmental suggestions.

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Surface Mount Components

The Hall Company, having a history of being at the forefront of flexible film technology, has added a new "Surface Mount" line. This new line allows the electrical bonding of virtually any surface mount device to a printed silver circuit. This technology offers the flexibility of LEDs, Resistors and Diodes as well as many other components to be used as a stand-alone circuit or included within the membrane switch. Please contact our Sales Engineering Staff for application-specific information.