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Dyad®
FR2
Features
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
Description
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.
Applications
Security
Proximity sensing
Smoke alarms
Automotive
Level sensor
Lamp current sensor
Relays
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.
FR2 S XX XX
Minimum Operate Value (NI)
Maximum Operate Value (NI)
Approvals
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.
FR2
Part #
Coil definition
Coil resistance
Number of turns
Wire size (nom. diameter)
Bobbin diameter (inside coil)
Winding length
Coil - 1
NARM1 CTC01
1200
5,000
0.0399mm (AWG 46)
3.96mm
10.4mm
(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.
Surface Mount Dyad
Refer to operating characteristics table for complete part number.
DYAD®
Part # Operate Range (NI)1
FR2S1015
FR2S1020
FR2S1030
FR2S1520
FR2S1525
FR2S2025
10 to 15
10 to 20
10 to 30
15 to 20
15 to 25
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
DS-FR2-R2
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1

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Dyad®
FR2
Ratings (@ 25˚ C)
Parameter
Min
Switching Voltage
FR2 - DYAD®
Switching Current
FR2 - DYAD®
Carry Current
FR2 - DYAD®
Switching Frequency
FR2 - DYAD®
Contact Resistance
FR2 - DYAD®
(See detailed specifications for more information.)
Typ Max Units
200 Volts
0.5 Amps
1.5 Amps
500 Hz
150 m
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.
Specifications
All parameters are at 25°C unless otherwise stated.
PARAMETER
CONDITIONS
SYMBOL MIN
Contact Ratings
Operate ampere turns range
Full Blade Tolerance = ± 1.5NI
AT
10
Release ampere turns range
Full Blade Tolerance = ± 1.5NI
AT
5
Switching Voltage
Switching Current
Carry Current
Contact Rating
Max DC/PeakAC Resistive
Max DC/PeakAC Resistive
Max DC/PeakAC Resistive
Max DC/PeakAC Resistive
VL
IL
I
C
-
-
-
-
-
Life Expectancy
1V, 10mA Signal Level
--
10V, 10mA Low Level
--
50V, 100mA Telecom Load
-
-
100V, 100mA Rated Loads
-
-
Static Contact Resistance
50mV, 10mA(1)
CR -
Contact Material
--
Switch Specifications
Insulation Resistance(2)
100V, 25°C, 40% RH
IR 109
Capacitance
Across Open Contacts
--
Dielectric Strength(5)
Between Contacts
- 250
Operate Time,
including bounce
At nominal coil voltage, TOP -
10Hz Square Wave
Release Time
Environmental Ratings
Zener-Diode Suppression(3)
T
REL
-
Storage Temperature
Operating Temperature
Soldering Temperature
TA -40
TO -40
--
Vibration Resistance
5Hz - 200Hz
G-
Shock Resistance
Weight
11±1ms,
1/
2
Sine
Wave
S-
--
(1) Contact resistance measured with 4 terminal method, 1.1" between test leads
(2) >1012 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
TYP
-
-
-
-
-
-
1000
500
2
2
80
Ru
1011
0.3
300
-
-
-
-
-
-
-
0.13
MAX UNITS
30 NI
30 NI
200 VDC
500 mAmps
1.5 Amps
10 VA
- x106 Ops
- x106 Ops
- x106Ops
- x106 Ops
150 m
--
-
- pF
- VDC/Peak AC
0.5 ms
0.2 ms
+125
+125
+240
20
100
-
°C
°C
°C
Gs
Gs
grams/unit
2
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Rev. 2

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Performance Data*
Dyad®
FR2
CM15 Series
Operate NI vs. Release NI
Test Coil: NARM 1; Full Length Terminals
30
Minimum
25 Maximum
20
15
10
5
0
10 12 14 16 18 20 22 24 26 28 30
Operate NI
DYAD®
Capacitance Across Open Contacts
40
35
30
25
20
15
10
5
0
0.15
0.2
0.25
0.3
0.35
Capacitance (pF)
0.40
DYAD®
DYAD®
Operate Shift After Lead Trimming
40
35
30
25
20
15
10
5
0
0.7
0.8
0.9
1
1.1
1.2
Overall Length in Inches
1.355
DYAD®
Contact Resistance Throughout Life
10V, 12mA Resistive Load
60
50
40
30
20
10
0
0 10 20 30 40 50 60 70 80 90 100 110 120
Operations (Millions)
1200
1000
DYAD®
Dielectric Breakdown vs.
Operate Sensitivity
Min.
Avg.
Max.
800
600
400
200
0
8-9
12-13 16-17 20-21 24-2526-32
Average Operate (NI)
DYAD®
Contact Resistance Throughout Life
50V, 100mA Resistive Load
80
70
60
50
40
30
20
10
0
0 0.2 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
Operations (Millions)
*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.
Mechanical Dimensions
2.29 MAX.
(0.090)
1.65 MAX.
(0.065)
DYAD®
15.24 MAX.
(0.600)
34.54 MAX.
(1.360)
+ 7o
0.18
(0.007)
9.65 REF.
(0.380)
1.32 MAX.
(0.052)
DYAD® SMT
2.29 MAX.
(0.900)
2.03 MAX.
(0.080)
0.25 MAX.
(R 0.010)
4 PLACES
1.32 MAX.
(0.052)
1.02
(0.040)
15.24 MAX.
(0.600)
1.20 TYP.
(0.047)
17.53
(0.690)
1.22
(0.048)
+ 10o
MAX. TWIST ALLOWED
TYP. BOTH ENDS
+ 5o
19.56 MAX.
(0.770)
Recommended Pad Sizes
Rev. 2
2.54
(0.100)
DYAD® SMT
16.01 MAX.
(0.63)
2.79
(0.110)
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DIMENSIONS
mm
(inches)
3

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Dyad®
FR2
Tape & Reel Packaging
Tape and Reel Packaging for DYAD®-Gull Wing Terminals
Top Cover
Tape Thickness
.10 MAX.
(.004)
.300 ± .013
(.012 ± .0005)
1.75
(.069)
14.20
(.559)
Embossed Carrier
Embossment
.50
(.020)
28.40
(1.118)
2.29
(.090)
Top Cover
Tape
2.00
(.079 )
1.55 ± .05
(.061 ± .002)
4.00
(.157)
32.00 ± .31
(1.260 ± .012)
23.01 MAX
(.906)
20.12
(.792)
14.63
(.576)
8.00
(.315)
2.49
(.098)
2.00 MIN. DIA. TYP.
(.079)
8¡ MAX
.28
(.011 )
User Direction of Feed
1.93
(.076 )
2.49
(.098 )
DIMENSIONS
mm
(inches)
4
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Rev. 2

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Worldwide Sales Offices
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
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.
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