RI-46 Series Dry Reed Switch
RI-46 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 relays, sensors, pulse counters or
similar devices.
RI-46 Series Features
Can switch main voltage
Can handle up to 40 W load
Contact layers: gold, sputtered ruthenium
Superior glass-to-metal seal and blade alignment
Excellent life expectancy and reliability
General 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
Coils
All characteristics are measured using the Philips
Standard Coil. For definitions of the Philips Standard
Coil, refer to 鈥淎pplication
Notes鈥?/div>
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-46 series.
No-load conditions (operating frequency: 100 Hz)
Life expectancy: min. 10
8
operations with a failure rate
of less than 10
-9
with a confidence level of 90%.
Dimensions in inches (mm)
Loaded conditions (resistive load: 20 V; 500 mA;
operating frequency: 125 Hz)
RI-46AA
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 > 2鈩?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 10
7
operations with a failure
rate of less than 10
-8
with a confidence level of 90%.
End of life criteria:
Contact resistance > 2鈩?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.
End of life criteria:
Contact resistance > 1鈩?after 2 ms
Release time > 2 ms (latching or contact sticking).
COTO TECHNOLOGY (USA)
Tel:
(401) 943-2686 / Fax (401)
118
942-0920
6
(Europe) Tel: +31-45-5439343 / Fax +31-45-5427216
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