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RI-46 Series
SERIES RI-46 SERIES 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. The device is intended for use in relays, sensors, pulse counters or similar devices.
EATURES SERIES FEA RI-46 SERIES FEATURES u Can switch main voltage u Can handle up to 40 W load u Contact layers: Gold, sputtered ruthenium u Superior glass-to-metal seal and blade alignment u Excellent life expectancy and reliability
G ENERAL DATA FOR ALL MODELS RI-46 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 C OILS All characteristics are measured using the Philips Standard Coil. For definitions of the Philips Standard Coil and the standard MIL Coil, refer to "Application Notes" in the Reed Switch Technical & Application Information Section of this catalog. Standard Relationship between Relationship betw een Philips Standard Coil and Standard dard MIL Coil Operate value of standard MIL Coil = 0.79 x operate value of Philips Standard Coil + 2.26 AT. Release value of standard Mil Coil = 0.83 x release value of Philips Standard Coil + 1.31 AT.
EXPECTANCY L IFE 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-46 series.
Dimensions in inches (mm)
less than 10-9 with a confidence level of 90%. End of life criteria: Contact resistance > 1 after 2 ms Release time > 2 ms (latching or contact sticking). esistiv (resisti Loaded conditions (r esistiv e load: 20 V; 500 mA; opera frequenc equency: opera ting frequency: 125 Hz) RI-46AA 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 > 2 after 2.5 ms Release time > 2.5 ms (latching or contact sticking). RI-46A; RI-46B; RI-46C Life expectancy: min. 2.5 x 107 operations with a failure rate of less than 10-8 with a confidence level of 90%. End of life criteria: Contact resistance > 2 after 2.5 ms Release time > 2.5 ms (latching or contact sticking).
No-load conditions (opera ting fr equency: 100 Hz) (opera frequenc equency: 8 Life expectancy: min. 10 operations with a failure rate of
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RI-46 Series
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 10.5-19 4-12 0.35 (24 AT) 0.15 (24 AT) 30 (24 AT) 3200 15-28 5-16 0.35 (35 AT) 0.15 (35 AT) 30 (35 AT) 3200 24-51 8-20.5 0.35 (64 AT) 0.15 (64 AT) 30 (64 AT) 3200 46-70 12-22.5 0.35 (87.5 AT) 0.15 (87.5 AT) 30 (87.5 AT) 3200 RI-46AA RI-46A RI-46B RI-46C
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 30 200 250 750 750 2 300 90 (27 AT) 60 (27 AT) 0.2 10
6
note 1 note 1
(energization) (energization) without test coil RH 45%
30 200 250 1000 1000 2.5 400 90 (27 AT) 60 (27 AT) 0.2 10
6
40 200 250 1000 1000 3 580 90 (36AT) 60 (36 AT) 0.2 10
6
40 200 250 1000 1000 3 780 90 (36 AT) 60 (36 AT) 0.2 10
6
Note 1: Switching higher currents is possible depending on signature of the load.
Switching different loads involves different life expectancy and reliability data. Further information is available on request. DA MECHANICAL DATA Contact arrangement is normally open; lead finish is tinned; net mass is approximately 0.28 g; and can be mounted in any position. S HOCK 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.
IBRATION V IBRATION The switches are tested in accordance with "IEC 68-2-6", test Fc (acceleration 10 G; 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.
PERATING STORAGE EMPERATURE O PERATING AND STORAGE T EMPERATURE 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.
S OLDERING 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. W ELDING The leads can be welded. MOUNTING The leads should not be bent closer than 1 mm to the glassto-metal seals. Stress on the seals should be avoided. Care must be taken to prevent stray magnetic fields from influencing the operating and measuring conditions.
STRENGTH MECHANICAL STRENGTH The robustness of the terminations is tested in accordance with "IEC 68-2-21", test Ua1 (load 40 N).
Rhopoint Components Ltd Fax: +44 (0) 1883 712938 Phone: +44 (0) 1883 717988 web: www.rhopointcomponents.com e-mail: sales@rhopointcomponents.com

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