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| RI-80 SMD Series Dry Reed Switch RI-80 SMD 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. RI-80 SMD Series Features Ideal for proximity sensors, telecom & 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) RI-80 SMD G1 Model RI-80 SMD G2 Model RI-80 SMD J-Lead Model General data for RI-80 SMD AT-Customization Loaded conditions (Resistive load: 5V; 100 mA; operating frequency: 170 Hz) The RI-80 SMD can be supplied in operate ranges to customer specification. Coils 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 > 1 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 All characteristics are based on unmodified switches. The switches are defined using the Philips Standard Coil. For more information, see Reed Switch Technical & Application Information Section of this catalog. Life expectancy and reliability 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) Contact arrangement is normally open; lead finish is tinned; and can be mounted in any position. Shock Life expectancy: min. 108 operations with a failure rate of less than 2 x10-9 with a confidence level of 90%. End of life criteria: Contact resistance > 1 after 2 ms Release time > 2ms (latching or contact sticking). 88 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. 6 (Europe) Tel: +31-45-5439343 / Fax +31-45-5427216 COTO TECHNOLOGY (USA) Tel: (401) 943-2686 / Fax (401) 942-0920 RI-80 SMD Series Dry Reed Switch Model Number Parameters Operating Characteristics Operate Range** Release Range** Operate Time - including bounce (typ.) Bounce Time (typ.) Release Time (max) Resonant Frequency (typ.) AT AT ms ms s Hz 5-15** 2-13** 0.35 (20 AT) 0.1 (20 AT) 20 (20 AT) 21.300 RI-80 SMD Test Conditions Units (energization) (energization) (energization) Electrical Characteristics Switched Power (max) Switched Voltage DC (max) Switched Voltage AC, RMS value (max) Switched Current DC (max) Switched Current AC, RMS value (max) Carry Current DC; AC, RMS value (max) Breakdown Voltage (min) Contact Resistance (initial max) Contact Resistance (initial typ.) Contact Capacitance (max) Insulation Resistance (min) W V V mA mA A V m m pF M 5 175* 140 350 250 0.5 230 160 (20 AT) 140 (20 AT) 0.45 106 (energization) (energization) without test coil RH 45% * 200V for switches with AT-on value > 10AT. ** AT values of switches before SMD forming in PSC coil. Vibration Soldering 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 Operating ambient temperature; min: -55C; max: +125C. 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. For Most Recent Data, Consult the Coto Technology Website: www.cotorelay.com 6 E-mail: info@cotorelay.com 89 |
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