ED & EDM Dome Series Tactile Switches B Features Typical Applications • • • • • • • • • Short travel Good tactile feedback Self cleaning 3 actuation forces RoHS Aircraft Instrument Panels Radio equipment Specification Electrical ED: Disc element EDM: Disc element and double dome FUNCTION: Momentary action CONTACT TYPE: Normally open - SPST TERMINALS: Through hole PCB terminations or tabs OPERATING LIFE: 1,000,000 MAXIMUM POWER: MAXIMUM VOLTAGE: MINIMUM VOLTAGE: MIN/MAX CURRENT: DIELECTRIC STRENGTH: CONTACT RESISTANCE: INSULATION RESISTANCE: (between terminals) BOUNCE TIME: Packaging Trays 50 pieces. Mechanical Operating force Type Newtons (grams) EDSAC LFS 2.4 (240) ± 25% EDSSC LFS 2.4 (240) ± 25% EDM450SAC LFS 4.5 (450) ± 25% EDM650SSC LFS 6.5 (650) ± 25% Tactile Feeling (∆%) ≥ 25% ≥ 30% ≥ 25% ≥ 25% Return Force N ≥ 0.4 N ≥ 0.4 N ≥ 1.0 N ≥ 1.6 N Silver Gold 1.0 VA 0.2 VA 100 VDC 100 VDC 20m VDC 20m VDC 1.0 mA - 100 mA 50µA - 50 mA ≥ 250 Vrms ≤ 100 mΩ Initial measurement: ≥ 1 GΩ After damp heat: ≥ 10 MΩ ≤ 3 ms Environmental Silver Gold OPERATING TEMPERATURE: -25˚C to 70˚C -55˚C to 85˚C Travel (mm) 0.3mm ± 0.15 0.3mm ± 0.15 0.5mm ± 0.25 0.6mm ± 0.25 SIMULTANEITY: ≤ 0.05 mm How To Order Our easy build-a-switch concept allows you to mix and match options to create the switch you need. To order, select desired option from each category and place it in the appropriate box. E D S S 1 C Contact Material S Silver G Gold Terminals AC with pc pins SC with tabs E D M 4 Operation Force 450 4.5 N (450 grams) 650 6.5 N (650 grams) 5 0 L F G Lead Free Compatible LFS RoHS, Silver termination plating LFG RoHS, Gold termination plating for tabs only Disc 0 Not sealed 1 Sealed, IP 67 S S C L Contact Material Terminals AC with pc pins S Silver SC with tabs G Gold F G Lead Free Compatible LFS RoHS, Silver termination plating * LFG RoHS, Gold termination plating for tabs only * If AC terminal option is selected please choose LFS suffix for part number Dimensions shown in: mm Specifications and dimensions subject to change B–75 www.ck-components.com ED & EDM Dome Series ED EDM 11,3 ±0,15 B 11,3 B B Tactile Switches 10,8 max ( sur clinquants ) 0,01 +0,06 1,2 -0,1 10,8 max ( sur clinquants ) +0,06 1,2 -0,1 Apres assemblage 0 1,2 ø0,05 A ø -0,1 12,7 ±0,3 10,35±0,15 0,1 2±0,3 A 90˚ 12,7±0,3 A 0,25 A ø 11,8±0,15 +0,03 2 -0,01 36˚ ø 11,8±0,15 Zone de soudure ultra sons 10+0,2 0 15±0,2 0,55±0,1 +0,02 0,5 -0,04 4,5 ±0,5 IMPLANTATION CIRCUIT IMPRIME 0,9±0,1 0,35 ( course relative ) 10,35±0,15 Switch Action Principal The disc contact is essentially made of two separate conductive dome diaphragms separated by an insulated material. The upper diaphragm is shaped so that under pressure it collapses suddenly and establishes contact with the lower diaphragm. Upper Diaphragm Pressure Lower Diaphragm Switch in resting position Insulating washer Circular contact area Switch in active position Dimensions shown in: mm Specifications and dimensions subject to change B–76 www.ck-components.com