EAO SECME Division
| SMT MICRO-COSMOS Surface mount tactile key switches | |
|---|---|
Surface mount version of MICRO-COSMOS is designed to withstand all SMT soldering processes including infrared, vapor phase reflow, double wave, etc. A semi-spherical silicone membrane reinforces the tactile feel and allows mounting the switch under a film overlay without installing an additional actuator button. |
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| Specifications | |
|---|---|
| Contacts: standard silver plated (2 u) on nickel |
24 V/20 mA nominal 50V max. 100 mV/10 mA min. 0.5 W nominal power <100 M Ohms initial resistance |
| heavy gold plated (0.5 u) on nickel |
24 V/20 mA nominal 50V max 10 mV/500 uA min 0.5 W nominal power <20 M Ohms initial resistance |
| Dielectric strength | 250 V RMS, 50 Hz |
| Insulation resistance | >1,000 M Ohms, 100 VDC |
| Insulation, self-extinguishing | glass-filled thermoplastic, 94V-0 (UL-94) |
| Operating force | 4.2N |
| Operating travel | 0.50 mm mean value |
| Total travel | 0.80 mm mean value |
| Maximum bounce | <5 msec |
| Operating life | 1-million operations |
| Vibration resistance | 10-2000 Hz, 0.75 mm, 10 g test time: 2 hrs, 30 min |
| Mechanical shock resistance | 100 G, 6 msec |
| Terminals | 4 u SnPb on nickel |
| Operating & storage temperature: Standard silver Heavy gold | -55 to + 85°C -55 to +125°C |
| Damp heat (IEC 512-6) | 21 days |
| Sealing | sealed for soldering and immersion cleaning in solvents. Max. immersion time: 90 sec |
| Soldering time: | 60 sec/200°C 10 sec/260°C |
| Ordering Information | ||
|---|---|---|
| Description | Part Number | |
| Standard Silver Contacts | Heavy Gold Contacts | |
| For automatic insertion | ||
| 50 units per dispensing tube | MC 10311 92 | MC 12511 92 |
| (former part number: | MC 10311 91 S | MC 12511 91 S) |
| 1200 units per tape reel | MC 10311 91 | MC 12511 91 |
| (former part number: | MC 10311 91 B | MC 12511 91 B) |
