www.clare.com

Clare's Molded 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. In addition, the molding
process provides a solid plastic outer shell. This plastic
shell provides superior mechanical strength, eliminates
concerns over handling glass switches, and provides an
ideal solution for high speed, automated assembly
environments."

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

Superior mechanical strength

Enhanced for better auto placement

Applications

Security

Proximity sensing

Smoke alarms

Automotive

Level sensor

Lamp current sensor

Relays

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, CM15S1030 is a MOLDED DYAD

with

a minimum operate value of 10NI and a maximum of 30NI.
Refer to the switch operating specification charts for avail-
able ranges. Special ranges are available upon request.

Surface Mount Molded DYAD
Refer to operating characteristics table for complete part number.

Molded 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.

CM15

Part #

Coil - 1

Coil definition

NARM1 CTC01

Coil resistance

1200

Number of turns

5,000

Wire size (nom. diameter)

0.0399mm (AWG 46)

Bobbin diameter (inside coil)

3.96mm

Winding length

10.4mm

MOLDED DYAD

Part #

Operate Range (NI)

CM15S1015

10 to 15

CM15S1020

10 to 20

CM15S1030

10 to 30

CM15S1520

15 to 20

CM15S1525

15 to 25

CM15S2025

20 to 25

MOLDED DYAD

Surface Mount

Part # Operate Range (NI)

1,2,3

CM15-2024

10 to 15

CM15-2259

10 to 20

CM15-2282

10 to 30

CM15-2025

15 to 20

CM15-2249

15 to 25

CM15-2026

20 to 25

Tolerance =

± 1.5NI

Full Blade Sensitivity

Surface Mount Switches are packaged 3,000 parts per reel

CM15

DS-CM15-R1

Maximum Operate Value (NI)

Minimum Operate Value (NI)

CM15 S XX XX

"S" for straight switch

blank for SMT

CM15

www.clare.com

Rev. 1

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.

Absolute Maximum Ratings (@ 25° C)

PARAMETER

CONDITIONS

SYMBOL

MIN

TYP

MAX

UNITS

Contact Ratings

Operate ampere turns range

Full Blade Tolerance =

± 1.5NI

Release ampere turns range

Full Blade Tolerance =

± 1.5NI

Switching Voltage

Max DC/PeakAC Resistive

200

VDC

Switching Current

Max DC/PeakAC Resistive

500

mAmps

Carry Current

Max DC/PeakAC Resistive

1.5

Amps

Contact Rating

Max DC/PeakAC Resistive

Life Expectancy

1V, 10mA Signal Level

1000

x10

Ops

10V, 10mA Low Level

500

x10

Ops

50V, 100mA Telecom Load

x10

Ops

100V, 100mA Rated Loads

x10

Ops

Static Contact Resistance

50mV, 10mA

(1)

150

Contact Material

Switch Specifications

Insulation Resistance

(2)

100V, 25

°C, 40% RH

Capacitance

Across Open Contacts

0.3

Dielectric Strength

(5)

Between Contacts

250

300

VDC/Peak AC

Operate Time,

At nominal coil voltage,

0.5

including bounce

10Hz Square Wave

Release Time

Zener-Diode Suppression

(3)

REL

0.2

Environmental Ratings

Storage Temperature

-40

+125

°C

Operating Temperature

-40

+125

°C

Soldering Temperature

+240

°C

Vibration

5Hz - 200Hz

-Gs

Shock

±1ms,

Sine Wave

Shock - survivability

±1ms,

Sine Wave

500

Parameter

Min

Typ Max Units

Switching Voltage
CM15 - MOLDED DYAD

200

Volts

Switching Current
CM15 - MOLDED DYAD

0.5

Amps

Carry Current
CM15 - MOLDED DYAD

1.5

Amps

Switching Frequency
CM15 - MOLDED DYAD

500

Contact Resistance
CM15 - MOLDED DYAD

150

(See detailed specifications for more information.)

(1)

Contact resistance measured with 4 terminal method, 1.1" between test leads

(2)

>10

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

Molded DYAD

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

are trademarks of Clare, Inc.

Clare cannot assume responsibility for use of any circuitry other
than 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.

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