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.
Dyad
FR2
®
Applications
• Security
• Proximity sensing
• Smoke alarms
• Automotive
• Level sensor
• Lamp current sensor
• Relays
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 - 1
Coil definitionNARM1 CTC01
Coil resistance1200Ω
Number of turns5,000
Wire size (nom. diameter)0.0399mm (AWG 46)
Bobbin diameter (inside coil)3.96mm
Winding length10.4mm
(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.
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.
®
DYAD
Part #Operate Range (NI)
FR2S101510 to 15
FR2S102010 to 20
FR2S103010 to 30
FR2S152015 to 20
FR2S152515 to 25
FR2S202520 to 25
DYAD® Surface Mount
Part #Operate Range (NI)
FR202410 to 15
FR225910 to 20
FR228210 to 30
FR202515 to 20
FR224915 to 25
FR202620 to 25
1
Tolerance = ± 1.5NI
2
Full Blade Sensitivity
3
Surface Mount Switches are packaged 3,000 parts per reel
1
1,2,3
DS-FR2-R2
www.clare.com
1
Page 2
Dyad
FR2
®
Ratings (@ 25˚ C)
ParameterMinTyp Max Units
Switching Voltage
FR2 - DYAD
Switching Current
FR2 - DYAD
Carry Current
FR2 - DYAD
®
®
®
200Volts
0.5Amps
1.5Amps
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.
Switching Frequency
FR2 - DYAD
®
500Hz
Contact Resistance
FR2 - DYAD
(See detailed specifications for more information.)
®
150mΩ
Specifications
All parameters are at 25°C unless otherwise stated.
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
--200VDC
--500mAmps
--1.5Amps
9
10
11
-Ω
--0.5ms
--0.2ms
-40-+125°C
-40-+125°C
6
Ops
6
Ops
6
Ops
6
Ops
2
www.clare.com
Rev. 2
Page 3
0
CM15 Series
Operate NI vs. Release NI
Test Coil: NARM 1; Full Length Terminals
30
MinimumMaximum
25
20
15
Release NI
10
5
0
10
121416182022
242628
Operate NI
Dyad
®
FR2
Performance Data*
®
DYAD
®
Operate Shift After Lead Trimming
403530252015
After Lead Cut
10
5
Percent Operate Increase
0
30
0.7
DYAD®
0.80.9
Overall Length in Inches
1200
Min.
Avg.
Max.
1000
800
600
400
200
Dielectric Breakdown (VDC)
1
1.21.355
1.1
0
8-9
DYAD
Dielectric Breakdown vs.
Operate Sensitivity
16-17
12-13
Average Operate (NI)
20-21 24-2526-32
®
®
Capacitance Across Open Contacts
4035
302520
15
Number of Units
10
50
0.150.2
*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.
DYAD
0.30.350.40
0.25
Capacitance (pF)
Contact Resistance Throughout Life
60
50
40
30
20
10
Average Resistance (mOhms)
0
0
102030 40 50 607080 90
DYAD
10V, 12mA Resistive Load
Operations (Millions)
100
110
120
Contact Resistance Throughout Life
50V, 100mA Resistive Load
80
70
60
50
40
30
20
10
Average Resistance (mOhms)
0
0.2
0.4
0.8 1.0 1.2 1.4
0
0.6
®
DYAD
1.8 2.0
1.6
Operations (Millions)
Mechanical Dimensions
®
2.29MAX.(0.090)
1.65MAX.(0.065)
DYAD
15.24MAX.(0.600)
34.54MAX.(1.360)
o
+
7
9.65REF.(0.380)
0.18
(0.007)
1.32MAX.(0.052)
2.29MAX.(0.900)
1.32MAX.(0.052)
2.03MAX.(0.080)
0.25MAX.(R0.010)
4PLACES
1.02
(0.040)
DYAD® SMT
15.24MAX.(0.600)
1.20TYP.(0.047)
(0.690)
19.56MAX.(0.770)
17.53
2.4
2.8
3.
2.2
2.6
1.22
(0.048)
o
+
10
MAX.TWISTALLOWED
TYP.BOTHENDS
o
+
5
Rev. 2
Recommended Pad Sizes
DYAD® SMT
2.54
(0.100)
2.79
16.01MAX.(0.63)
www.clare.com
(0.110)
DIMENSIONS
mm
(inches)
3
Page 4
Dyad
FR2
®
Tape & Reel Packaging
Tape and Reel Packaging for DYAD®-Gull Wing Terminals
EmbossedCarrier
TopCoverTapeThickness.10MAX.(.004)
Embossment
.300±.013
(.012±.0005)
.50
(.020)
2.29
(.090)
TopCover
Tape
(.069)
14.20(.559)
28.40
(1.118)
1.75
8¡MAX
.28
(.011)
2.00
(.079)
1.55±.05
(.061±.002)
8.00
(.315)
UserDirectionofFeed
1.93
(.076)
2.49
(.098)
2.49
(.098)
4.00
(.157)
32.00±.31
(1.260±.012)
23.01MAX(.906)
20.12(.792)
14.63(.576)
2.00MIN.DIA.TYP.(.079)
DIMENSIONS
mm
(inches)
4
www.clare.com
Rev. 2
Page 5
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
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 reserves 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.