98 coto technology (usa) tel: (401) 943-2686 / fax (401) 942-0920 (europe) tel: +31-45-5439343 / fax +31-45-5427216 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 general data for ri-80 smd at-customization the ri-80 smd can be supplied in operate ranges to customer specification. coils 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) life expectancy: min. 10 8 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). loaded conditions (resistive load: 5v; 100 ma; operating frequency: 170 hz) life expectancy: min. 10 7 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 expect- ancy and reliability data. further information available upon request. mechanical data contact arrangement is normally open; lead finish is tinned; and can be mounted in any position. shock 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. dimensions in inches (mm) ri-80 smd g1 model ri-80 smd g2 model ri-80 smd j model
99 for most recent data, consult the coto technology website: www.cotorelay.com e-mail: sales@cotorelay.com ri-80 smd series dry reed switch vibration the switches are tested in accordance with ?iec 68-2-6?, test fc (acceleration 10g; below cross- over 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 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. soldering 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. * 200v for switches with at-on value > 10at. ** at values of switches before smd forming in psc coil. ** customer specific at ranges and modifications are also possible. please contact your local sales representative. ordering information
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