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RI-44 Datasheet(PDF) 1 Page - Coto Technology |
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RI-44 Datasheet(HTML) 1 Page - Coto Technology |
1 / 2 page 116 COTO TECHNOLOGY (USA) Tel: (401) 943-2686 / Fax (401) 942-0920 6 (Europe) Tel: +31-45-5439343 / Fax +31-45-5427216 RI-44 Series Dry Reed Switch RI-44 Series Micro dry-reed switch hermetically sealed in a gas-filled glass enve- lope. 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 electromag- net, a permanent magnet or a combination of both. The device is intended for use in sensors, relays, pulse counters or similar devices where high voltages need to be switched. RI-44 Series Features High voltage breakdown voltage Can handle up to 40W load Contact layers: gold, rhodium Superior glass-to-metal seal and blade alignment Excellent life expectancy and reliability General data for all models RI-44 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 “ Application Notes” in the 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 1.5 times the published maximum operate value for each type in the RI-44 series. Loaded conditions (resistive load: 20 V; 500 mA; operating frequency: 125 Hz) Operate Sensitivity > 25AT MCBF 250M operations End of life criteria: Contact resistance > 2 Ω after 2.5 ms Release time > 2.5 ms (latching or contact sticking). Switching different loads involves different life expect- ancy and reliability data. Further information is available on request. Other loads, contact Coto for more detail. Mechanical Data Contact arrangement is normally open; lead finish is tinned; net mass is approximately 280 mg; and can be mounted in any position. Shock The switches are tested in accordance with “IEC 68-2- 27”, test Ea (peak acceleration 500 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) |
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