Metal dome switching technology: round and double radius domes
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SWITCH’AIRTM Round & Double Radius domes NICOMATIC metal domes are used in any type of Man/Machine interface (MMI). The most common application for small diameter 4mm and 5mm Round & Double-Radius domes lies in mobile phone handsets, due to space and thickness savings. Every kind of push-button could integrate a NICOMATIC METAL DOME and/or DOME ARRAYS. 2 TYPES ADVANTAGES The NICOMATIC SWITCH’AIRTM Round & DR domes offer : Excellent tactile effect even after rigorous tests (click ratio > 50%) Very long life expectancy : over 5 million cycles Stable forces and homogeneity of forces per batch number Control of dimensional and mechanical characteristics No burrs, thus eliminating the scratching effect Full-cut technology for longer life expectancy Successful and reliable automatic placement with NICOMATIC machines The standard model is pre-nickel plated to avoid all risk of contamination 100% traceability per batch number PACKAGING PRODUCTION CAPACITY NICOMATIC is one of the worldwide largest manufacturers of metal domes: Over 100 standard references available On-site production and R&D Proprietary manufacturing process for EL & DOME ARRAYS QUALIFICATION TESTS Life expectancy Overload test (static load) Overstroke Sweet spot (position of the actuator shifted from the dome centre) O.S.O. test (at a time : overload, sweet spot, overstroke) Electrical measurement NICOMATIC SWITCH’AIRTM ROUND & DR domes are either supplied : In bulk quantities In Pre-Assembled Spacer (PAS) custom-made arrays In Electroluminescent (EL) dome arrays Typical force versus travel curve for a metal dome NICOMATIC HEADQUARTERS 173, rue des Fougères / Z.I. les Bracots / F-74890 Bons-en-Chablais Tel. +33 (0)4 50 36 13 85 - Fax +33 (0)4 50 36 11 33 Email : nicomatic@nicomatic.fr NICOMATIC NORTH AMERICA 165 Veterans Way, Unit 200 WARMINSTER, PA 18974 USA Tel. +1 (215) 444-9580 Fax +1 (215) 444-9581 Email : sales@nicomatic.net NICOMATIC SOUTH AMERICA Av. Brigadeiro Faria Lima, 2.639 - cj. 10a Jardim Paulistano 01452-000 São Paulo BRAZIL Tel. +55 11 3815-4411 Fax +55 11 3814-6133 Email : carlos.guimaraes@nicomatic.com.br NICOMATIC CHINA Nicomatic (Tianjin) Electronics Co, Ltd. 6A XEDA Jimei Industrial Park Xiqing Economic & Development Area Tianjin CHINA Tel. +86 22 238 88 050 Fax +86 22 238 88 060 Email : sales@nicomatic.cn NICOMATIC INTERNATIONAL SUBSIDIARIES : For more information on the NICOMATIC distributor network, please visit the web site http://www.nicomatic.com NICOMATIC FRANCE is certified ISO 9001 N° de certification 353658 click ratio = Ft - Fr Ft Ft = Trip Force Fr = Rebound Force Tc = Travel Mechanical characteristics Actuation Force [N] Travel [m] Ft Fc Fr D Tt Tr Tc April 2009 - C.SD.500/GB Non contractual document - NICOMATIC reserves the right to discontinue the production or to change the specifications of any part of this data sheet without prior notice - © NICOMATIC INDIA A-32 Ground Floor Mohan Cooperative Industrial Area Mathura Road - New-Delhi 110044 INDIA Tel. +91 11 420 919 21 Fax +91 11 420 919 99 Email : india@nicomatic.com R Type DR Type with micro-dimple DR benefit : space savings (see pattern overleaf)

4 MM DOUBLE RADIUS DOMES With and without dimple 5 MM DOUBLE RADIUS DOMES With and without dimple 5 MM ROUND DOMES With and without dimple 4 MM ROUND DOMES With and without dimple DOME SPECIFICATIONS SWITCH’AIRTM Round & Double Radius domes N 4 - R – (D) – XXX – YY Trip force 150g – 180g Plating 21 : nickel plated (standard) 31 : 1 side Type of dome gold plated R = round DR = double radius Diameter Ø4 Ø5 Dimple (D) D = with dimple Packaging N : in bulk Non contractual document - NICOMATIC reserves the right to discontinue the production or to change the specifications of any part of this...