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RI-80 Series Dry Reed Switch RI-80 Series Ultra-micro dry-reed switch hermetically sealed in a gas-filled glass envelope. Single-pole, single-throw (SPST) type, having normally open contacts, and containing two magnetically actuated reeds. The switch is of the double-ended type and may be actuated by an electromagnet, a permanent magnet or a combination of both. The device is intended for use in sensors, relays, pulse counters or similar devices. RI-80 Series Features Ideal for ATE switching, proximity sensors & medical applications World's smallest high quality reed switch Contact layers: gold, sputtered ruthenium Superior glass-to-metal seal and blade alignment Dimensions in inches (mm) General data for all models RI-80 AT-Customization / Preformed Leads End of life criteria: Contact resistance > 1 after 2 ms Release time > 2ms (latching or contact sticking). Loaded conditions (Resistive load: 5V; 100 mA; operating frequency: 170 Hz) Besides the standard models, customized products can also be supplied offering the following options: ! Operate and release ranges to customer specification ! Cropped and/or preformed leads Coils All characteristics are measured using the Philips Standard Coil. For definitions of the Philips Standard Coil, see Reed Technical & Application Information Section of this catalog. Life expectancy and reliability Life expectancy: min. 107 operations with a failure rate of less than 10-8 with a confidence level of 90%. End of life criteria: Contact resistance > 2 after 4 ms Release time > .7 ms (latching or contact sticking) Switching different loads involves different life expectancy and reliability data. Further information available upon request. Mechanical Data The life expectancy data given below are valid for a coil energized at 1.25 times the published maximum operate value for each type in the RI-80 series. No-load conditions (operating frequency: 100 Hz) Life expectancy: min. 10 operations with a failure rate of less than 2 x10-9 with a confidence level of 90%. 96 8 Contact arrangement is normally open; lead finish is tinned; net mass is approximately 65mg; and can be mounted in any position. 6 (Europe) Tel: +31-45-5439343 / Fax +31-45-5427216 COTO TECHNOLOGY (USA) Tel: (401) 943-2686 / Fax (401) 942-0920 RI-80 Series Dry Reed Switch * 200V for switches with AT-on value > 10AT. Shock Storage temperature; min: -55C; max: +125C. Note: Temperature excursions up to 150C may be permissible. For more information contact your nearest Coto Technology sales office. Soldering The switches are tested in accordance with "IEC 68-2-27", test Ea (peak acceleration 150 G, half sinewave; duration 11 ms). Such a shock will not cause an open switch (no magnetic field present) to close nor a switch kept closed by an 80 AT coil to open. Vibration The switches are tested in accordance with "IEC 68-2-6", test Fc (acceleration 10G; below crossover frequency 57 to 62 Hz; amplitude 0.75 mm; frequency range 10 to 2000 Hz, duration 90 minutes.) Such a vibration will not cause an open switch (no magnetic field present) to close, nor a switch kept closed by an 80 AT coil to open. Mechanical Strength The switch can withstand soldering heat in accordance with "IEC 68-2-20", test Tb, method 1B: solder bath at 350 10C for 3.5 0.5 s. Solderability is tested in accordance with "IEC 68-2-20" test Ta, method 3: solder globule temperature 235C; ageing 1b: 4 hours steam. Welding The leads can be welded. The robustness of the terminations is tested in accordance with "IEC 68-2-21", test Ua1 (load 10N). Operating and Storage Temperature Mounting Operating ambient temperature; min: -55C; max: +125C. The leads should not be bent closer than 1 mm to the glass-to-metal seals. Stress on the seals should be avoided. Care must be taken to prevent stray magnetic fields from influencing the operating and measuring conditions. 6 E-mail: sales@cotorelay.com For Most Recent Data, Consult the Coto Technology Website: www.cotorelay.com 97 |
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