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 Worlds 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 Loaded conditions (Resistive load: 5V 100 mA operating frequency: 170 Hz) AT-Customization 7 Life expectancy: min. 10 operations with a failure The RI-80 SMD can be supplied in operate ranges to -8 customer specification. rate of less than 10 with a confidence level of 90%. End of life criteria: Coils Contact resistance > 1 after 4 ms All characteristics are based on unmodified switches. Release time > .7 ms (latching or contact sticking) The switches are defined using the Philips Standard Coil. For more information, see Reed Switch Technical Switching different loads involves different life expect- & Application Information Section of this catalog. ancy and reliability data. Further information available upon request. Life expectancy and reliability The life expectancy data given below are valid for a coil Mechanical Data energized at 1.25 times the published maximum operate Contact arrangement is normally open lead finish is value for each type in the RI-80 series. tinned and can be mounted in any position. No-load conditions (operating frequency: 100 Hz) 8 Shock Life expectancy: min. 10 operations with a failure rate -9 The switches are tested in accordance with IEC of less than 2 x10 with a confidence level of 90%. 68-2-27, test Ea (peak acceleration 150 G, half sinewave duration 11 ms). Such a shock will not cause End of life criteria: an open switch (no magnetic field present) to close nor Contact resistance > 1 after 2 ms a switch kept closed by an 80 AT coil to open. Release time > 2ms (latching or contact sticking). COTO TECHNOLOGY (USA) Tel: (401) 943-2686 / Fax (401) 942-0920 (Europe) Tel: +31-45-5439343 / Fax +31-45-5427216 88RI-80 SMD Series Dry Reed Switch Model Number RI-80 SMD Parameters Test Conditions Units Operating Characteristics Operate Range** AT 5-15** Release Range** AT 2-13** Operate Time - including bounce (typ.) (energization) ms 0.35 (20 AT) Bounce Time (typ.) (energization) ms 0.1 (20 AT) Release Time (max) s 20 (20 AT) (energization) Resonant Frequency (typ.) Hz 21.300 Electrical Characteristics Switched Power (max) W 5 Switched Voltage DC (max) V 175* Switched Voltage AC, RMS value (max) V 140 Switched Current DC (max) mA 350 Switched Current AC, RMS value (max) mA 250 Carry Current DC AC, RMS value (max) A 0.5 Breakdown Voltage (min) V 230 Contact Resistance (initial max) (energization) m 160 (20 AT) Contact Resistance (initial typ.) (energization) m 140 (20 AT) Contact Capacitance (max) without test coil pF 0.45 6 10 RH 45% M Insulation Resistance (min) * 200V for switches with AT-on value > 10AT. ** AT values of switches before SMD forming in PSC coil. Soldering Vibration The switches are tested in accordance with IEC The switch can withstand soldering heat in accordance with IEC 68-2-20, test Tb, method 1B: solder bath at 68-2-6, test Fc (acceleration 10G below cross- 350 10C for 3.5 0.5 s. Solderability is tested in over frequency 57 to 62 Hz amplitude 0.75 mm frequency range 10 to 2000 Hz, duration 90 accordance with IEC 68-2-20 test Ta, method 3: solder globule temperature 235C ageing 1b: 4 hours minutes.) Such a vibration will not cause an open switch (no magnetic field present) to close, nor a switch steam. kept closed by an 80 AT coil to open. Welding The leads can be welded. Mechanical Strength The robustness of the terminations is tested in accor- dance 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 E-mail: info cotorelay.com 89