Tact Switch requires 4 N operation force.

Press Release Summary:

Measuring 2.7 x 3.0 x 1.4 mm, SKSG Series TACT Switch(TM) features metal contact that combines high operation force of 4 Newtons with operating life of 200,000 cycles, making switch suitable for car AV equipment as well as keyless entry or car navigation systems. Definite clicking sensation helps prevent unintentional operation, while ground function prevents static electricity from flowing into set device, which can cause operation failure and IC destruction.

Original Press Release:

Alps Introduces New SKSG Series TACT Switch(TM)

Four Newton High Operation Force with Long Operating Life

TOKYO - Alps Electric today announced its new SKSG Series TACT Switch(TM) for automobiles. The compact switch's high operation force protects against accidental operation, making it suitable for car AV equipment as well as keyless entry or car navigation systems. Sample shipments will commence from April 2010.

Switches that function as operation buttons may only require a light operating force. However, there are instances where a high operation force is required, such as in remote control units for vehicle keyless entry systems. This prevents accidental operation when these devices are carried around inside pockets or bags. Additionally, controls found on car navigations systems and car audio equipment, as well as other digital devices make the user more aware of a button's operation when there is a distinct operation feel.

This new TACT Switch (TM) combines a high operation force of four Newtons with a long operating life of 200,000 cycles. A new metal contact (metallic board spring) was developed for the switch and Alps made full use of its quality engineering and analysis technology to create the contact's optimum configuration. Reducing the load against the metal contact when pressed achieves both high operation force and increases life span, creating a definite clicking sensation that helps prevent unintentional operation and reduces risk of failure over the life of the product.

To meet the needs of compact and slim consumer devices in the market today, Alps achieved a cubic measure that is one third of its conventional products (ref *) (D 2.7mm x W 3.0mm x H 1.4mm). Furthermore, Alps' technology in thin wall molding, precision press, and automatic assembly acquired over the years contributes to greater space conservation.

Furthermore, as the switch is equipped with a stem, dimensional precision is not required when designing the set product. This makes product design easier while ensuring the switch's stable operation. The switch is also equipped with a ground function (ref *2), which prevents static electricity from flowing into the set device, potentially causing operation failure and IC destruction.

A lighter operation force of 1.6N is also available in the series for use in general digital devices.

*1 SKRP Series. Dimensions D 3.2mm W 4.2mm H 2.5mm.

*2 The 1.6N operation force type is not equipped with a ground function.


Development of the new SKSG Series TACT Switch(TM) for automobiles

1. New metal contact achieves high operation force and long life span

2. Compact and low-profile design conserves mounting space

3. Attached stem makes set product design easier and achieves secure operation

4. Ground function helps counteract static electricity

Principal Applications

4N Operation Force

- Keyless entry systems, car navigation systems and car AV equipment, etc.

1.6N Operation Force

- Portable audio players, digital cameras, game consoles, etc.

Planned Release

Mass production From April 2010

Sample price - 60 yen (tax included)

Planned monthly production - 3 million units (from April 2010)

Development - MMP Division, Furukawa Plant (Osaki City, Miyagi Prefecture)

Production - MMP Division, Kakuda Plant (Kakuda City, Miyagi Prefecture)


Product name - SKSG Series

Dimensions (W × D × H) - 3.0mm × 2.7mm × 1.4mm

Operating force 4N - 1.6N

Travel - 0.12mm

Ratings (max.) - 50mA 16V DC

Ratings (max.) - 10µA 1V DC

Operating life - 200,000 cycles

Initial contact resistance - 100mW

About Alps Electric Co., Ltd.

Alps Electric (Tokyo: 6770) is a leading global manufacturer of high-quality electronic components for mobile devices, home electronics, vehicles and industrial equipment. With the philosophy of "Perfecting the Art of Electronics" Alps Electric supplies over 40,000 different components to about 2,000 companies all over the world. For more information, visit www.alps.com

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