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122 COTO TECHNOLOGY (USA) Tel: (401) 943-2686 / Fax (401) 942-0920 6 (Europe) Tel: +31-45-5439343 / Fax +31-45-5427216 RI-02 Series Dry Reed Switch RI-02 Series Ultra-miniature dry-reed switch hermetically sealed in a gas- filled 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, sensors, pulse counters or similar devices. RI-02 Series Features Ideal for General Purpose reed relays and sensors Contact layers: ruthenium on gold Superior glass-to-metal seal and blade alignment General data for all models RI-02 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 1.25 times the published maximum operate value for each type in the RI-02 series. No-load conditions (operating frequency: 100 Hz) Life expectancy: min.108 operations with a failure rate of less than 2 x10-10 with a confidence level of 90%. End of life criteria: Contact resistance > 1 Ω after 2 ms Release time > 2ms (latching or contact sticking). Loaded conditions (resistive load: 5V; 100 mA; operating frequency: 125 Hz) Life expectancy: min. 2 x 106 operations with a failure rate of less than 10-8 with a confidence level of 90%. End of life criteria: Contact resistance > 1 Ω after 2.5 ms Release time > 1 ms (latching or contact sticking). Loaded conditions (resistive load: 20V; 500 mA; operating frequency: 125 Hz) Life expectancy: min. 2 x 106 operations with a failure rate of < 10-7 with a confidence level of 90%. 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 avail- able on request. Dimensions in inches (mm) |
