RI-05 Series Dry Reed Switch
RI-05 Series
Close differential pico dry-reed switch hermetically sealed in a
gas-filled envelope. Single-pole, single-throw (SPST) type, having
normally open contacts, and containing two magnetically actu-
ated 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 sensors, relays, pulse counters
or similar devices.
RI-05 Series Features
Close differential reed switch
Contact layers: ruthenium on gold
Superior glass-to-metal seal and blade alignment
Dimensions in inches (mm)
General data for all models RI-05
AT-Customization / Preformed Leads
Loaded conditions (resistive load: 12 V; 4 mA;
(15 mA peak); operating frequency: 170 Hz)
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
Life expectancy: min. 10
6
operations.
End of life criteria:
Contact resistance > 2
Ω
after 4ms
Release time > 0.7ms (latching or contact
sticking).
Switching different loads involves different life
expectancy and reliability data. Further information
is available on request.
Mechanical Data
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-05 series.
No-load conditions (operating frequency: 100 Hz)
Contact arrangement is normally open; lead finish is
tinned; net mass is approximately 100 mg; and can be
mounted in any position.
Shock
Life expectancy: min. 2 x 10
8
operations with a failure
rate of less than 10
-9
with a confidence level of 90%.
End of life criteria:
Contact resistance > 1
Ω
after 2ms
Release time > 2ms (latching or contact sticking).
128
The switches are tested in accordance with “IEC
68-
2-27”,
test Ea (peak acceleration 150 G, half
sinewave; duration 11 ms). Such a shock will not
cause an open switch (no magnetic field present) to
6
(Europe) Tel: +31-45-5439343 / Fax +31-45-5427216
COTO TECHNOLOGY (USA)
Tel:
(401) 943-2686 / Fax (401) 942-0920
COTO [ COTO TECHNOLOGY ]
