RI-46 Series
RI-46 S
ERIES
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.
The device is intended for use in relays, sensors, pulse counters or
similar devices.
EATURES
RI-46 S
ERIES
F
EATURES
u
Can switch main voltage
u
Can handle up to 40 W load
u
Contact layers: Gold, sputtered ruthenium
u
Superior glass-to-metal seal and blade alignment
u
Excellent life expectancy and reliability
G
ENERAL 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
C
OILS
All characteristics are measured using the Philips Standard
Coil. For definitions of the Philips Standard Coil and the
standard MIL Coil, refer to
“Application Notes”
in the
Reed Switch Technical & Application Information
Section
of this catalog.
Relationship between
Standard
Relationship betw een Philips Standard Coil and Stan-
dard
dard MIL Coil
Operate value of standard MIL Coil = 0.79 x operate value
of Philips Standard Coil + 2.26 AT.
Release value of standard Mil Coil = 0.83 x release value of
Philips Standard Coil + 1.31 AT.
EXPECTANCY
L
IFE 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.
Dimensions in inches (mm)
less than 10
-9
with a confidence level of 90%.
End of life criteria:
Contact resistance > 1
Ω
after 2 ms
Release time > 2 ms (latching or contact sticking).
(resisti
esistiv
Loaded conditions (r esistiv e load: 20 V; 500 mA;
opera
frequenc
equency:
opera ting 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
Ω
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
Ω
after 2.5 ms
Release time > 2.5 ms (latching or contact sticking).
(opera
frequenc
equency:
No-load conditions (opera ting fr equency: 100 Hz)
8
Life expectancy: min. 10 operations with a failure rate of
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