Group
RI-03 Series Dry Reed Switch
RI-03 Series
formerly
Micro dry-reed switch hermetically sealed in a gas-filled 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 sensors, relays, pulse counters or similar devices.
RI-03 Series Features
▪
Ideal for general purpose reed relays and sensors.
▪
Contact layers: ruthenium on gold
▪
Superior glass-to-metal seal and blade alignment
▪
RoHS Compliant
Dimensions for RI-03 Series
0.906 ± 0.020
(23.0 ± 0.5)
0.100 max
(Ø2.54)
0.550 max
(14.0)
1.811 ± 0.020
(46.0 ± 0.5)
tinned
0.024 max
(Ø0.60)
All Dimension in inches (mm) nominal
General data for all models RI-03
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
Coils
Loaded conditions (resistive load: 12 V; 4 mA;
operating frequency: 170Hz)
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
Life expectancy: min. 10
6
operations with a failure rate of
less than 10
-8
with a confidence level of 90%.
End of life criteria:
Contact resistance > 2Ω after 4 ms
Release time > 0.7 ms (latching or contact sticking).
Switching different loads involves different life expectancy
and reliability data. Further information is available on
request.
Mechanical Data
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-03 series.
No load conditions (operating frequency: 100Hz)
Contact arrangement is normally open; lead finish is
tinned; net mass is approximately 190mg; and can be
mounted in any position.
Shock
Life expectancy: min. 10
8
operations with a failure rate of
less than 10
-9
with a confidence level of 90%.
End of life criteria:
Contact resistance > 1Ω after 2 ms
Release time > 2 ms (latching or contact sticking).
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.
USA Tel: +(1)973 777 6900
▪
BE Tel: + 32 (0)12 390400
▪
UK Tel:
+44 (0)1255 862236
▪
USA Tel: +(1)401 830 2100
▪
NL Tel:
+31(0)45 5439345
USA Tel: +(1)800 864 2815
▪
IN Tel: +(91)(44)42023510
Page 1 of 3
RI-03 Series Dry Reed Switch
Technical Specifications
Parameters
Test Conditions
Units
RI-03AAA
RI-03AA
RI-03A
RI-03B
Operating Characteristics
Operate Range
Release Range
Operate Time - including Bounce (typ.)
Bounce Time (typ.)
Release Time (max)
Resonant Frequency (typ.)
Electrical Characteristics
Switched Power (max)
Switched Voltage DC (max)
Switched Voltage AC, RMS value (max)
Switched Current DC (max)
Switched Current AC, RMS value (max)
Carry Current DC (max)
Breakdown Voltage (min)
Contact Resistance (initial max.)
Contact Resistance (initial typ.)
Contact Capacitance (max)
Insulation Resistance (min)
without test coil
RH ≤ 45%
W
V
V
mA
mA
A
V
mΩ
mΩ
pF
MΩ
5
160
110
250
250
1
200
120
70
0.3
10
6
10
200
140
500
500
1.5
250
120
70
0.3
10
6
10
200
140
500
500
2.5
300
120
70
0.25
10
6
10
200
140
500
500
2.5
350
120
70
0.25
10
6
AT
AT
ms
ms
ms
Hz
6-16
3-15.5
0.1
0.05
70
5500
14-23
6-21
0.25
0.15
30
5500
18-32
7-27
0.25
0.15
30
5500
28-52
10-36
0.25
0.15
30
5500
Vibration
The switches are tested in accordance with “IEC 68-2-6”,
test Fc (acceleration 10G; below cross-over-frequency 57
to 62 Hz; amplitude 0.75 mm; frequency range 10 to
2000 Hz; duration 90 minutes.) Such a vibration will not
cause an open switch ( no magnetic field present) to close,
nor a switch kept closed by an 80 AT coil to open.
Mechanical Strength
Mounting
The leads should not be bent closer than 1 mm to the
glass-to-metal seals. Stress on the seals should be avoided
Care must be taken to prevent stray magnetic fields from
influencing the operating and measuring conditions.
The robustness of the terminations is tested in accordance
with “IEC 68-2-21”, test Ua1 (load 40 N).
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 office.
Soldering
The 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
accordance with “IEC 68-2-20” test Ta, method 3: solder
globule temperature 235°C; ageing 1b: 4 hours steam.
Welding
The leads can be welded.
• As part of the company policy of continued product improvement, specifications
may change without notice. Our sales office will be pleased to help you with the
latest information on this product range and the details of our full design and
manufacturing service. All products are supplied to our standard conditions of
sale unless otherwise agreed in writing.
USA Tel: +(1)973 777 6900
▪
BE Tel: + 32 (0)12 390400
▪
UK Tel:
+44 (0)1255 862236
▪
USA Tel: +(1)401 830 2100
▪
NL Tel:
+31(0)45 5439345
USA Tel: +(1)800 864 2815
▪
IN Tel: +(91)(44)42023510
Page 2 of 3
RI-03 Series Dry Reed Switch
Comus International
454 Allwood Road
Clifton, New Jersey 07012
U.S.A
Tel: (1)973 - 777 - 6900
Fax: (1)973 - 777 - 8405
email: info@comus-intl.com
Website: http://www.comus-intl.com
Comus Relays & Sensors
37 Thurber Boulevard, Suite 102
Smithfield, Rhode Island 02917
U.S.A
Tel: (1)401 - 830 - 2100
email: sales@comusrelay.com
Website: http://www.comusrelay.com
Comus Europe Ltd
Unit 7, Rice Bridge Industrial Estate
Thorpe - Le - Soken
Essex, England
CO160HL
Tel: +44 (0)1255 862236
Fax: +44 (0)1255 862014
email: sales@comuseurope.co.uk
Website: http://www.comuseurope.co.uk
Comus Belgium BVBA
Overhaamlaan 40
B-3700 Tongeren
Belgium
Tel: +33 (0)12 390400
Fax: +33 (0)12 235754
email: info@comus.be
Website: http://www.comus.be
Comus Technology BV
Jan Campertstraat 11
6416 SG Heerlen
The Netherlands
Tel: +31(0)45 5439345
Fax: +31(0)45 5427216
email: info@comus-intl.com
Website: http://www.dry-reeds.com
Computer Components, Inc.
18-B Kripes Road.
P.O. Box 1378
East Granby, Connecticut 06026
U.S.A
Tel: (1)800 - 864 - 2815
email: info@relays-unlimited.com
Website: http://www.relays-unlimited.com
Comus Electronics and Technologies
India Private Limited
2nd Floor, No.31/33, Anjugam Nagar
2nd Street, Ashok Nagar, Jaferkhanpet
Chennai 600083
Tamil Nadu, India
Tel:+(91)-(44)-42023510
Fax:+(91)-(44)-22628198
email: info@comus-intl.com
Website: http://www.comusindia.com
Switching Technologies Gunther
B-9, B-10, & C-1
Special Economic Zone (MEPZ)
Kaddaperi, Tambaran
Chennai 600045
India
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