Datasheet

RI-90 Series Dry Reed Switch
RI-90 Series
Micro changeover dry-reed switch hermetically sealed in a gas-lled enve-
lope. Single-pole, double-throw (SPDT) type, having a normally open and a
normally closed contact.
e switch may be actuated by an electromagnet, a permanent magnet or a
combination of both. e device is intended for use in sensors, relays, pulse
counters or similar devices.
RI-90 Series Features
▪ Ideal for ATE switching and proximity sensors
▪ Contact layers: Ruthenium on gold
▪ Superior glass-to-metal seal and blade alignment
▪ Excellent life expectancy and reliability
▪ RoHS Compliant
Dimensions for RI-90 Series
All Dimension in inches (mm) nominal
General data for all models RI-90
AT-Customization / Performed Leads
Besides the standard models, customized products can also
be supplied oering the following options:
• Operate and release ranges to customer specication
• Cropped and/or performed leads
Coils
All characteristics are measured using the Philips Standard
Coil. For denitions of the Philips Standard Coil, refer to
“Application Notes” in the Reed Switch Technical & Applica-
tion Information Section of this catalog.
Life expectancy and reliability
e 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-90 series.
No load conditions (operating frequency:
100Hz)
Life expectancy: min. 10
8
operations with a failure rate of
less than 2 x 10
-9
with a condence level of 90%.
End of life criteria:
Contact resistance > 1Ω after 2 ms
Release time > 2 ms (latching or contact sticking).
Operating and Storage Temperature
Operating ambient temperature; min: -55°C; max:
+125°C. Storage temperature; min: -55°; max: +125°C.
Note: Temperature excursions up to 150°C may be
permissible. For more information contact your nearest
Comus Group sales oce.
Soldering
e switch can withstand soldering heat in accordance
with “IEC 68-2-20”, test Tb, method 1B: solder bath at
350 ± 10°C for 3.5 ± 0.5 s. Solderability is tested in accor-
dance with “IEC 68-2-20” test Ta, method 3: solder
globule temperature 235°C; ageing 1b: 4 hours steam.
Welding
e leads can be welded.
formerly
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Ø.023 MAX
(.60)
Ø.023 MAX
(.60)
.100 MAX (2.54)
.100 MAX (2.54)
1.00 ± .020 (25.4 ± 0.5)
1.00 ± .020 (25.4 ± 0.5)
1.956 ± .019 (49.7 ± 0.5)
.563 MAX (14.3)
.563 MAX (14.3)
1.988 ± .019 (50.5 ± .6)
.685 MAX (17.4)
.059 (1.5) ref
Ø.020 MAX (.50)
Ø.020 MAX (.50)
Ø.020 MAX (.50)
Ø.020 MAX (.50)
.768 (19.5) ref
.059 (1.5)
.003 ± .019 (0.8 ± 0.5)
.738 ± .009 (18.75 ± 0.25)
NC Lead
NC Lead
NO Lead
NO Lead
.100 ± .009 MAX (2.54 ± 0.25)