RI-80 SMD Series Dry Reed Switch
RI-80 SMD Series
Ultra-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.
RI-80 SMD Series Features
Ideal for proximity sensors, telecom & medical applications
World’s smallest high quality reed switch
Contact layers: gold, sputtered ruthenium
Superior glass-to-metal seal and blade alignment
Dimensions in inches (mm)
RI-80 SMD G1 Model
RI-80 SMD G2 Model
RI-80 SMD J Model
General data for RI-80 SMD
AT-Customization
The RI-80 SMD can be supplied in operate ranges to
customer specification.
Coils
All characteristics are based on unmodified switches.
The switches are defined using the Philips Standard
Coil. For more information, see
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 1.25 times the published maximum operate
value for each type in the RI-80 series.
No-load conditions (operating frequency: 100 Hz)
Life expectancy: min. 10
8
operations with a failure rate
of less than 2 x10
-9
with a confidence level of 90%.
Loaded conditions (Resistive load: 5V; 100 mA;
operating frequency: 170 Hz)
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 > 1Ω after 4 ms
Release time > .7 ms (latching or contact sticking)
Switching different loads involves different life expect-
ancy and reliability data. Further information available
upon request.
Mechanical Data
Contact arrangement is normally open; lead finish is
tinned; and can be mounted in any position.
Shock
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 close nor
a switch kept closed by an 80 AT coil to open.
6
(Europe) Tel: +31-45-5439343 / Fax +31-45-5427216
End of life criteria:
Contact resistance > 1Ω after 2 ms
Release time > 2ms (latching or contact sticking).
98
COTO TECHNOLOGY (USA)
Tel:
(401) 943-2686 / Fax (401) 942-0920
COTO [ COTO TECHNOLOGY ]
