Molded Ultra-Mini DYAD
™
SRC
DEVICES
CM5
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
•
Superior mechanical strength
•
Enhanced for better auto placement
Applications
•
Security
−
Proximity sensing
−
Smoke alarms
•
Automotive
−
Level sensor
−
Lamp current sensor
•
Relays
Description
SRC Devices
Molded Ultra-Mini DYAD
TM
is well suited for
small
signal switching applications. The small size lends
itself
to surface mountable applications; working well on
higher
density PC boards. The Molded Ultra-Mini DYAD
TM
has
sputtered ruthenium contacts and an extraordinary
strength achieved by a patented laser sealing of the leads.
In low level or dry switching environments, switches
typically exceed 1 billion operations. 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.
Ordering Information
A complete part number is represented by the digits to
the right. For example, CM5S1030 is a MOLDED ULTRA-
MINI DYAD™ with a minimum operate value of 10NI and
a maximum of 30NI. Refer to the switch operating
specification charts for available ranges. Special ranges
are available upon request.
CM5 S XX XX
"S" for straight switch
Maximum
operate value
Minimum
operate value
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.
CM5
Part #
Coil Definition
Coil Resistance
Number of Turns
Wire Size
Bobbin Diameter (inside cell)
Winding Length
Coil-1
NARM1 CTC01
1200Ω
5,000
0.0399mm (AWG 46)
3.96mm
10.4mm
Surface Mount Molded Ultra-Mini DYAD
Refer to operating characteristics table for complete part number.
Molded Ultra-Mini DYAD™
Part #
CM5S1015
CM5S1020
CM5S1030
CM5S1520
CM5S1525
CM5S2025
Operate Range (NI)
1
10 to 15
10 to 20
10 to 30
15 to 20
15 to 25
20 to 25
(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.
Molded Ultra-Mini DYAD™ Surface Mount
Part #
CM5-2319
CM5-2315
CM5-2376
CM5-2325
CM5-2341
CM5-2378
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
Tolerance =
±
1.5NI
Full Blade Sensitivity
3
Surface Mount Switches are packaged 3,000 parts per reel
www.srcdevices.com
1
Molded Ultra-Mini DYAD
™
CM5
Absolute Maximum Ratings (@ 25˚ C)
Parameter
Switching Voltage
CM5 - Molded Ultra Mini-DYAD
™
Switching Current
CM5 - Molded Ultra Mini-DYAD
™
Carry Current
CM5 - Molded Ultra Mini-DYAD
™
Switching Frequency
CM5 - Molded Ultra Mini-DYAD
™
Contact Resistance
CM5 - Molded Ultra Mini-DYAD
™
(See detailed specifications for more information.)
SRC
Max
175
0.25
0.50
500
300
Units
Volts
Amps
Amps
Hz
mΩ
DEVICES
Min
-
-
-
-
-
Typ
-
-
-
-
-
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
Contact Ratings
Operate ampere turns range
Release ampere turns range
5Switching Voltage
Switching Current
Carry Current
Contact Rating
Life Expectancy
CONDITIONS
Full Blade Tolerance =
±
1.5NI
Full Blade Tolerance =
±
1.5NI
Max DC/PeakAC Resistive
Max DC/PeakAC Resistive
Max DC/PeakAC Resistive
Max DC/PeakAC Resistive
1V, 10mA Signal Level
10V, 10mA Low Level
50V, 100mA Telecom Load
100V, 100mA Rated Loads
50mV, 10mA
(1)
SYMBOL
AT
AT
V
L
I
L
I
C
-
-
-
-
-
CR
-
IR
-
-
T
OP
T
REL
T
A
T
O
-
G
S
S
MIN
10
5
-
-
-
-
-
-
-
-
-
-
10
9
-
200
-
-
-40
-40
-
-
-
-
TYP
-
-
-
-
-
-
1000
500
2
2
120
Ru
10
11
0.3
-
-
-
-
-
-
-
-
-
MAX
30
30
175
250
0.5
5
-
-
-
-
300
-
-
-
-
0.4
0.1
+125
+125
+265
20
30
500
UNITS
NI
NI
VDC
mAmps
Amps
VA
x10
6
Ops
-x10
6
Ops
x10
6
Ops
x10
6
Ops
mΩ
-
Ω
pF
VDC/Peak AC
ms
ms
˚C
˚C
˚C
-Gs
Gs
Gs
Static Contact Resistance
Contact Material
Switch Specifications
Insulation Resistance
(2)
Capacitance
Dielectric Strength
(5)
Operate Time,
including bounce
Release Time
Environmental Ratings
Storage Temperature
Operating Temperature
Soldering Temperature
Vibration
Shock
Shock - survivability
100V, 25°C, 40% RH
Across Open Contacts
Between Contacts
At nominal coil voltage,
10Hz Square Wave
Zener-Diode Suppression
(3)
5Hz - 200Hz
11±1ms,
1
/
2
Sine Wave
11±1ms,
1
/
2
Sine Wave
(1)
(2)
Contact resistance measured with 4 terminal method, 1.1" between test leads
>10
12
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 SRC Devices.
Engineering for more details/ recommendations
(5)
15 ampere turn minimum
USA
1-866-SRC-8668
Europe
32-89-328850
Far East
886-2-2698-8422
www.srcdevices.com
2
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