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RI-26B Datasheet(PDF) 1 Page - Coto Technology

Part # RI-26B
Description  Dry Reed Switch
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Manufacturer  COTO [Coto Technology]
Direct Link  http://www.cotorelay.com
Logo COTO - Coto Technology

RI-26B Datasheet(HTML) 1 Page - Coto Technology

  RI-26B Datasheet HTML 1Page - Coto Technology RI-26B Datasheet HTML 2Page - Coto Technology  
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COTO TECHNOLOGY (USA) Tel: (401) 943-2686 / Fax (401) 942-0920
6 (Europe) Tel: +31-45-5439343 / Fax +31-45-5427216
RI-26 Series Dry Reed Switch
RI-26 Series
Close differential 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 electro-
magnet, a permanent magnet or a combination of both.
The device is intended for use in applications with small hysteresis in
switching behavior.
RI-26 Series Features
Close differential reed switch
Contact layers: gold, sputtered ruthenium
Superior glass-to-metal seal and blade alignment
Excellent life expectancy and reliability
General data for all models RI-26
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-26 series.
No-load conditions (operating frequency: 100 Hz)
Life expectancy: min. 3x108 operations with a failure
rate of less than 0.9x10-9 with a confidence level of
90%.
End of life criteria:
Contact resistance > 1
Ω after 2ms
Release time > 2ms (latching or contact sticking).
Loaded conditions (resistive load: 20 V; 500 mA;
operating frequency: 125 Hz)
Life expectancy: min. 5x107 operations with a failure
rate of less than 5x10-9 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.
Mechanical Data
Contact arrangement is normally open; lead finish is
tinned; net mass is approximately 190 mg; and can be
mounted in any position.
Shock
The switches are tested in accordance with “IEC 68-2-
27”, test Ea (peak acceleration 50 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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