Metal dome switching technology: 4-legged domes
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SWITCH’AIR® non-stick Four-Legged domes Thanks to its SWITCH’AIR® process, NICOMATIC has eliminated all risk of dome sticking thus ensuring efficient automatic placement and packaging in tubes for quick and easy positioning. Nicomatic offers one of the widest product ranges on the market. The SWITCH'AIR® notch helps to create a cushion of air between the domes so that they no longer stick together. DESCRIPTION ADVANTAGES The SWITCH'AIR® non-stick domes offer : Excellent tactile effect even after rigorous tests (click ratio > 50%) Very long life expectancy : up to 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 Successful and reliable automatic placement with NICOMATIC machines Domes in tubes save routine manual pre-separation of the domes by the operator The standard model is pre-nickel plated to avoid all risk of contamination 100% traceability per batch number PACKAGING SWITCH’AIR® technology patented by NICOMATIC PRODUCTION CAPACITY NICOMATIC is one of the worldwide largest manufacturers of metal domes : Over 100 standard references available On-site R&D and production Proprietary manufacturing process for 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 white translucent or transparent adhesive holes to allow mounting of the LEDS NICOMATIC SWITCH'AIR® non-stick domes can be ordered : In bulk quantities In tubes of 800 domes each* In tape & reel In sheets for custom made 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 The domes are already pre-positioned on adhesive arrays according to customer configurations, ready to be placed onto the circuit. 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

10 MM 4L With and without dimple 12.2 MM 4L With and without dimple 8.4 MM 4L With and without dimple 6 MM 4L With and without micro-dimple DOME SPECIFICATIONS SWITCH’AIR® non-stick Four-Legged domes DOME REFERENCE XXX Trip force (g) Rebound force Height (mm) Total travel (mm) without dimple Total travel (mm) with dimple Foot print (mm) Diameter (mm) Square size (mm) Click ratio (%) 140 170 220 140 +/- 20 170 +30 -20 60 +/- 20 70 +/- 20 90 +20 / -30 0.35 +/- 0.05 0.28 +/- 0.05 0.25 +/- 0.05 5.40 +/- 0.08 220 +/- 30 0.30 +/- 0.08 0.35 +/- 0.08 0.23 +/- 0.08 0.28 +/- 0.08 0.215 +/- 0.08 0.265...