FR2 Datasheet, PDF (1/4 Pages) Clare, Inc. – Dyad

SRC DEVICES
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
Dyad^®
FR2
Description
SRC Devices 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
1200Ω
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}
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