RI-29 Series Dry Reed Switch
RI-29 Series
Pico 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 or similar devices.
RI-29 Series Features
Can handle up to 20 W load
Contact layers: gold, copper, sputtered ruthenium
Superior glass-to-metal seal and blade alignment
Excellent life expectancy and reliability
Dimensions in inches (mm)
General data for all models RI-29
AT-Customization / Preformed Leads
Loaded conditions (capacitive load: 80 V; 0.1 mA;
(700 mA peak); operating frequency: 100 Hz)
RI-29AA
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 the
Reed Switch Technical & Application
Information
Section of this catalog.
Life expectancy and reliability
Life expectancy: min. 10
7
operations with a failure
rate of less than 2 x 10
-8
with a confidence level of
90%.
End of life criterion:
Release time > 2 ms (latching or contact sticking).
RI-29A
Life expectancy: min. 2 x 10
7
operations with a
failure rate of less than 10
-8
with a confidence level of
The life expectancy data given below are valid for a
90%.
coil energized at 1.25 times the published maximum
End of life criterion:
operate value for each type in the RI-29 series.
Release time > 2 ms (latching or contact sticking).
No-load conditions (operating frequency: 100 Hz)
Switching different loads involves different life
expectancy and reliability data. Further information
Life expectancy: min. 2 x 10
8
operations with a
-9
failure rate of less than 10 with a confidence level of is available on request.
90%.
Mechanical Data
End of life criteria:
Contact arrangement is normally open; lead finish is
Contact resistance > 1
Ω
after 2ms
tinned; net mass is approximately 100 mg; and can
Release time > 2ms (latching or contact sticking).
be mounted in any position.
106
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6
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