RI-29 Series Dry Reed Switch RI-29 Series Pico 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 relays or similar devices. RI-29 Series Features Can handle up to 20 W load Contact layers: gold, copper, sputtered ruthenium Superior glass-to-metal seal and blade alignment Excellent life expectancy and reliability Dimensions in inches (mm) General data for all models RI-29 AT-Customization / Preformed Leads 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, refer to the Reed Switch Technical & Application Information Section of this catalog. Loaded conditions (capacitive load: 80 V; 0.1 mA; (700 mA peak); operating frequency: 100 Hz) RI-29AA Life expectancy: min. 107 operations with a failure rate of less than 2 x 10-8 with a confidence level of 90%. End of life criterion: Release time > 2 ms (latching or contact sticking). RI-29A Life expectancy: min. 2 x 107 operations with a failure rate of less than 10-8 with a confidence level of The life expectancy data given below are valid for a 90%. coil energized at 1.25 times the published maximum End of life criterion: operate value for each type in the RI-29 series. Release time > 2 ms (latching or contact sticking). No-load conditions (operating frequency: 100 Hz) Switching different loads involves different life expectancy and reliability data. Further information Life expectancy: min. 2 x 108 operations with a -9 failure rate of less than 10 with a confidence level of is available on request. 90%. Mechanical Data End of life criteria: Contact arrangement is normally open; lead finish is Contact resistance > 1Ω after 2ms tinned; net mass is approximately 100 mg; and can Release time > 2ms (latching or contact sticking). be mounted in any position. Life expectancy and reliability 106 COTO TECHNOLOGY (USA) Tel: (401) 943-2686 / Fax (401) 942-0920 6 (Europe) Tel: +31-45-5439343 / Fax +31-45-5427216 RI-29 Series Dry Reed Switch may be permissible. For more information contact your nearest Coto Technology sales office. Shock The switches are tested in accordance with “IEC 682-27”, 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 682-6”, test Fc (acceleration 10 G; below cross-over frequency 57 to 62 Hz; amplitude 0.75 mm; frequency range 10 to 2000 Hz, duration 90 minutes in each direction). 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 robustness of the terminations is tested in accordance with “IEC 68-2-21”, test Ua1 (load 10 N). Soldering The switch can withstand soldering heat in accordance with “IEC 68-2-20”, test Tb, method 1B: solder bath at 350 ±10°C for 3.5 ±0.5 s. Solderability is tested in accordance with “IEC 68-2-20”, test Ta, method 3: solder globule temperature 235°C; ageing 1b: 4 hours steam. Welding The leads can be welded. Mounting 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. Operating and Storage Temperature Operating ambient temperature; min: -55°C; max: +75°C. Storage temperature; min: -55°C; max: +125°C. Note: Temperature excursions up to 150°C For Most Recent Data, Consult the Coto Technology Website: www.cotorelay.com 6 E-mail: [email protected] 107