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)
Surface Mount Dyad
Refer to operating characteristics table for complete part number.
Approvals
•
UL listed
DYAD
®
Part #
FR2S1015
FR2S1020
FR2S1030
FR2S1520
FR2S1525
FR2S2025
Operate Range (NI)
1
10 to 15
10 to 20
10 to 30
15 to 20
15 to 25
20 to 25
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
(1)
Coil - 1
NARM1 CTC01
1200Ω
5,000
0.0399mm (AWG 46)
3.96mm
10.4mm
DYAD
®
Surface Mount
Part #
FR2024
FR2259
FR2282
FR2025
FR2249
FR2026
1
2
Operate Range (NI)
1,2,3
10 to 15
10 to 20
10 to 30
15 to 20
15 to 25
20 to 25
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.
Tolerance =
±
1.5NI
Full Blade Sensitivity
3
Surface Mount Switches are packaged 3,000 parts per reel
DS-FR2-R2
www.clare.com
1
CLARE [ CLARE, INC. ]
