www.clare.com
Clare’s DYAD® dry reed switches are ideally suited for
small switching signal applications. This switch has
sputtered ruthenium contacts and an extraordinary seal
strength, achieved by a patented laser sealing of the glass.
In low level or dry switching environments, both switches
typically provide >1 billion operations. The switches have
hermetically sealed contacts and offer a wide range of
available magnetic sensitivities.
Features Description
•Small size
•SMT-compatible
•Easily formed leads
•Sputtered ruthenium contacts
•Hermetically sealed contacts
•Fast switching speed — up to 500Hz
•Wide range of available magnetic sensitivities
Applications
Approvals
•Security
•Proximity sensing
•Smoke alarms
•Automotive
•Level sensor
•Lamp current sensor
•Relays
•UL listed
Standard Test Coil
The magnetic force (expressed in NI, AT or Ampere Turns) required to cause the reed switch contacts to
close is called the pull-in or operate value.
Ordering Information
A complete part number is represented by the digits to the right. For example, FR2S1030 is a
DYAD® with a minimum operate value of 10 and a maximum of 30. Refer to the switch operating
specification charts for available ranges. Special ranges are available upon request.
Surface Mount Dyad
Refer to operating characteristics table for complete part number.
Maximum Operate Value (NI)
Minimum Operate Value (NI)
FR2SXXXX
Dyad®
(1) Consult factory for test procedure.
The reed switch shall be placed in the test coil with the gap centered in the core of the coil winding.
Test leads and their clips must be non-magnetic.
The longitudinal axis of the test coil and the test switch shall be vertical.
FR2
Part # Coil - 1
Coil definition NARM1 CTC01
Coil resistance 1200Ω
Number of turns 5,000
Wire size (nom. diameter) 0.0399mm (AWG 46)
Bobbin diameter (inside coil) 3.96mm
Winding length 10.4mm
DYAD®
Part # Operate Range (NI)1
FR2S1015 10 to 15
FR2S1020 10 to 20
FR2S1030 10 to 30
FR2S1520 15 to 20
FR2S1525 15 to 25
FR2S2025 20 to 25
DYAD® Surface Mount
Part # Operate Range (NI)1,2,3
FR2024 10 to 15
FR2259 10 to 20
FR2282 10 to 30
FR2025 15 to 20
FR2249 15 to 25
FR2026 20 to 25
1 Tolerance = ± 1.5NI
2 Full Blade Sensitivity
3 Surface Mount Switches are packaged 3,000 parts per reel
1
FR2
DS-FR2-R2
FR2
www.clare.com Rev. 2
Specifications
All parameters are at 25°C unless otherwise stated.
Absolute Maximum Ratings are stress ratings. Stresses
in excess of these ratings can cause permanent damage
to the device. Functional operation of the device at these
or any other conditions beyond those indicated in the
operational sections of this data sheet is not implied.
Exposure of the device to the absolute maximum ratings
for extended period may degrade the device and effect
its reliability.
Ratings (@ 25˚ C)
PARAMETER CONDITIONS SYMBOL MIN TYP MAX UNITS
Contact Ratings
Operate ampere turns range Full Blade Tolerance = ± 1.5NI AT 10 - 30 NI
Release ampere turns range Full Blade Tolerance = ± 1.5NI AT 5 - 30 NI
Switching Voltage Max DC/PeakAC Resistive VL- - 200 VDC
Switching Current Max DC/PeakAC Resistive IL- - 500 mAmps
Carry Current Max DC/PeakAC Resistive IC- - 1.5 Amps
Contact Rating Max DC/PeakAC Resistive - - - 10 VA
Life Expectancy 1V, 10mA Signal Level - - 1000 - x106 Ops
10V, 10mA Low Level - - 500 - x106 Ops
50V, 100mA Telecom Load - - 2 - x106Ops
100V, 100mA Rated Loads - - 2 - x106 Ops
Static Contact Resistance 50mV, 10mA(1) CR - 80 150 mΩ
Contact Material - - Ru - -
Switch Specifications
Insulation Resistance(2) 100V, 25°C, 40% RH IR 1091011 -Ω
Capacitance Across Open Contacts - - 0.3 - pF
Dielectric Strength(5) Between Contacts - 250 300 - VDC/Peak AC
Operate Time, At nominal coil voltage, TOP - - 0.5 ms
including bounce 10Hz Square Wave
Release Time Zener-Diode Suppression(3) TREL - - 0.2 ms
Environmental Ratings
Storage Temperature TA-40 - +125 °C
Operating Temperature TO-40 - +125 °C
Soldering Temperature - - - +240 °C
Vibration Resistance 5Hz - 200Hz G - - 20 Gs
Shock Resistance 11±1ms, 1/2 Sine Wave S - - 100 Gs
Weight - - 0.13 - grams/unit
Parameter Min Typ Max Units
Switching Voltage
FR2 - DYAD®200 Volts
Switching Current
FR2 - DYAD®0.5 Amps
Carry Current
FR2 - DYAD®1.5 Amps
Switching Frequency
FR2 - DYAD®500 Hz
Contact Resistance
FR2 - DYAD®150 mΩ
(See detailed specifications for more information.)
(1) Contact resistance measured with 4 terminal method, 1.1" between test leads
(2) >1012 Ω is available upon request
(3) A 24V zener in series with a diode across the coil
(4) Use caution not to exceed vibration resistance limits while ultrasonically cleaning. Contact Clare Engineering for more details/recommendations
(5) 15 ampere turn minimum
Dyad®
2
FR2
www.clare.com
Rev. 2
DYAD®
Performance Data*
*The Performance data shown in the graphs above is typical of device performance. For guaranteed parameters not indicated in the written specifications,
please contact our application department.
Recommended Pad Sizes
Mechanical Dimensions
DIMENSIONS
mm
(inches)
Dyad®
3
DYAD®
Operate Shift After Lead Trimming
Overall Length in Inches
Percent Operate Increase
After Lead Cut
0.7
40
35
30
25
20
15
10
5
00.8 0.9 11.1 1.2 1.355
DYAD®
Dielectric Breakdown vs.
Operate Sensitivity
Average Operate (NI)
Dielectric Breakdown (VDC)
8-9
1200
1000
800
600
400
200
0
12-13 16-17 20-21 24-2526-32
Min.
Avg.
Max.
DYAD®
Capacitance Across Open Contacts
Capacitance (pF)
Number of Units
40
35
30
25
20
15
10
5
00.15 0.2 0.25 0.3 0.35 0.40
DYAD®
Contact Resistance Throughout Life
10V, 12mA Resistive Load
Operations (Millions)
Average Resistance (mOhms)
0
60
50
40
30
20
10
0
10 20 30 40 50 60 70 80 90 100 110 120
DYAD®
Contact Resistance Throughout Life
50V, 100mA Resistive Load
Operations (Millions)
Average Resistance (mOhms)
0.2
60
50
80
70
40
30
20
10
0
0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.
0
0
CM15 Series
Operate NI vs. Release NI
Test Coil: NARM 1; Full Length Terminals
Operate NI
Release NI
10
30
25
20
15
10
5
012 14 16 18 20 22 24 26 28 30
Minimum
Maximum
DYAD®
34.54 MAX.
(1.360)
9.65 REF.
(0.380)
2.29 MAX.
(0.090)
1.65 MAX.
(0.065)
1.32 MAX.
(0.052)
15.24 MAX.
(0.600)
0.18
(0.007)
+7
o
DYAD® SMT
2.03 MAX.
(0.080)
17.53
(0.690)
1.02
(0.040)
1.20 TYP.
(0.047)
0.25 MAX.
(R 0.010)
4 PLACES
19.56 MAX.
(0.770)
15.24 MAX.
(0.600)
2.29 MAX.
(0.900)
1.32 MAX.
(0.052)
1.22
(0.048)
MAX. TWIST ALLOWED
TYP. BOTH ENDS
+10o
+5o
DYAD® SMT
16.01 MAX.
(0.63)
2.79
(0.110)
2.54
(0.100)
FR2
www.clare.com Rev. 2
DIMENSIONS
mm
(inches)
Tape and Reel Packaging for DYAD®-Gull Wing Terminals
Tape & Reel Packaging
Dyad®
4
1.75
(.069)
4.00
(.157)
1.55 ± .05
(.061 ± .002)
.300 ± .013
(.012 ± .0005)
.50
(.020)
2.29
(.090)
Top Cover
Tape
2.00
(.079 )
1.93
(.076 )
.28
(.011 ) 2.49
(.098 )
8.00
(.315)
User Direction of Feed
32.00 ± .31
(1.260 ± .012)
23.01 MAX
(.906)
20.12
(.792)
14.63
(.576)
14.20
(.559)
28.40
(1.118)
2.49
(.098) 2.00 MIN. DIA. TYP.
(.079)
Embossment
Embossed Carrier
Top Cover
Tape Thickness
.10 MAX.
(.004)
8¡ MAX
CLARE LOCATIONS
Clare Headquarters
78 Cherry Hill Drive
Beverly, MA 01915
Tel: 1-978-524-6700
Fax: 1-978-524-4900
Toll Free: 1-800-27-CLARE
Clare Switch Division
4315 Earth City Expresssway
St. Louis, MO 63045
Tel: 1-314-770-1832
Fax: 1-314-770-1812
Clare Micronix Division
145 Columbia
Aliso Viejo, CA 92656-1490
Tel: 1-949-831-4622
Fax: 1-949-831-4628
SALES OFFICES
AMERICAS
Americas Headquarters
Clare
78 Cherry Hill Drive
Beverly, MA 01915
Tel: 1-978-524-6700
Fax: 1-978-524-4900
Toll Free: 1-800-27-CLARE
Eastern Region
Clare
P.O. Box 856
Mahwah, NJ 07430
Tel: 1-201-236-0101
Fax: 1-201-236-8685
Toll Free: 1-800-27-CLARE
Central Region
Clare Canada Ltd.
3425 Harvester Road, Suite 202
Burlington, Ontario L7N 3N1
Tel: 1-905-333-9066
Fax: 1-905-333-1824
Western Region
Clare
1852 West 11th Street, #348
Tracy, CA 95376
Tel: 1-209-832-4367
Fax: 1-209-832-4732
Toll Free: 1-800-27-CLARE
Canada
Clare Canada Ltd.
3425 Harvester Road, Suite 202
Burlington, Ontario L7N 3N1
Tel: 1-905-333-9066
Fax: 1-905-333-1824
EUROPE
European Headquarters
CP Clare nv
Bampslaan 17
B-3500 Hasselt (Belgium)
Tel: 32-11-300868
Fax: 32-11-300890
France
Clare France Sales
Lead Rep
99 route de Versailles
91160 Champlan
France
Tel: 33 1 69 79 93 50
Fax: 33 1 69 79 93 59
Germany
Clare Germany Sales
ActiveComp Electronic GmbH
Mitterstrasse 12
85077 Manching
Germany
Tel: 49 8459 3214 10
Fax: 49 8459 3214 29
Italy
C.L.A.R.E.s.a.s.
Via C. Colombo 10/A
I-20066 Melzo (Milano)
Tel: 39-02-95737160
Fax: 39-02-95738829
Sweden
Clare Sales
Comptronic AB
Box 167
S-16329 Spånga
Tel: 46-862-10370
Fax: 46-862-10371
United Kingdom
Clare UK Sales
Marco Polo House
Cook Way
Bindon Road
Taunton
UK-Somerset TA2 6BG
Tel: 44-1-823 352541
Fax: 44-1-823 352797
ASIA PACIFIC
Asian Headquarters
Clare
Room N1016, Chia-Hsin, Bldg II,
10F, No. 96, Sec. 2
Chung Shan North Road
Taipei, Taiwan R.O.C.
Tel: 886-2-2523-6368
Fax: 886-2-2523-6369
http://www.clare.com
Worldwide Sales Offices
Specification: PB-FR2-R2
©Copyright 2000
Ultra-Mini Dyad™, Mini Dyad™, and Dyad® are
trademarks of Clare, Inc.
All rights reserved. Printed in USA.
3/7/01
Clare cannot assume responsibility for use of any circuitry other
then circuitry entirely embodied in this Clare product. No circuit
patent licenses nor indemnity are expressed or implied. Clare re-
serves the right to change the specification and circuitry, without
notice at any time. The products described in this document are not
intended for use in medical implantation or other direct life support
applications where malfunction may result in direct physical harm,
injury or death to a person.
