Ryazan Metal Ceramics Instrumentation
Plant Joint Stock Company (RMCIP JSC)
REED SWITCHES CATALOG
RYAZAN
2003
Contents
Reed Switches
Ultra Miniature
MKA-07101
MKA-10109
Miniature
MKA-14103
MKA-16101
General Application
KAM-2
MKA-20101
High Power
MKA-50201
MKA-50202
Form C
KAM-3
MKC-27103
Ryazan Metal Ceramics Instrumentation Plant Joint Stock Company (RMCIP JSC)
has been specialized in producing reed switches from 1967. RMCIP JSC manufactures over
15 different types of dry reed switches designed for switching AC and DC signals at a
frequency of 10 kHz.
The manufacture at the factory is technically advanced with a high level of automated
control and specific requirements for cleanliness of the production area and quality of power
supply systems.
The factory is equipped with unique automated stamping machines, automated
equipment for cutting and fire-polishing glass, automated sealing equipment, plating station
for fine contact plating, automated measuring and test equipment.
A dry reed switch is an assembly containing ferromagnetic contact blades,
hermetically sealed in a glass tube that is filled with inert gas. The switch is operated by
an externally generated magnetic field, either from a coil or permanent magnet.
FEATURES
-
Hermetically sealed glass tube ensures high performance in severe ambient
conditions (dust, gases, liquids);
-
Long life (life expectancy to 15 years, life time to 108);
-
Low contact resistance;
-
Ambient operating temperature (-60°C to +155°С);
-
Immunity to mechanical effects;
-
Immunity to chemical attack;
-
Low operating power, maintenance-free operation: by permanent magnet or
electromagnetic coil;
-
High-response operation;
-
Compact and light in weight;
-
Low cost.
SCOPE OF APPLICATION
• Reed relays, for use in:
-
Audio and video equipment
-
Broadcast equipment
-
Transport
-
Domestic appliances
-
Measuring and test equipment
-
Military applications
-
Aircraft
-
Security systems
-
Telephony
• Keyboards, for use in:
-
Computers
-
Military equipment
-
Telephones
• Key switches, for use in:
-
Audio and video equipment
-
Domestic appliances
• Proximity switches, for use in:
-
Conveyors
-
Elevators
-
Robotics
-
Aircraft
• Security system applications, used in:
-
Door sensors
-
Window sensors
-
Position sensors
• Miscellaneous applications, including:
-
Flow sensors
-
Level detectors
-
Thermostats
-
Domestic machines
- Toys
REED SWITCH CHARACTERISTICS
PULL-IN AND DROP-OUT VALUES
The PULL-IN VALUE is the ampere-turn value at which normally-open contacts
close.
The DROP-OUT VALUE is the ampere-turn value at which normally-open contacts,
held closed by a magnetic field, will reopen as field strength is reduced.
The NON PULL-IN VALUE is the upper limit of the applied magnetic field at which
the dry reed switch shall not operate.
The HOLD VALUE is the lower limit of the applied magnetic field at which the closed
reed switch shall remain physically closed.
The SATURATE VALUE is the arbitrary defined value of the applied magnetic field
at which the dry reed switch is unaffected by further increase of the applied magnetic field
(see Fig.1).
Pull-In and Drop-Out values are measured in the measuring coils and are calculated as
the product of the current passing through the coils and the number of turns when the reeds
operate (release).
At
SATURATE
VALUE
PULL-IN
VALUE
HOLD
VALUE
NON PULL-IN
VALUE
DROP-OUT
VALUE
t(ms)
Fig.1 Graphical representation of parameters
BOUNCE, RELEASE, OPERATE TIME
The OPERATE TIME is the time between the instant of application of a magnetic field
to a dry reed switch and the instant of the last physical closing of this switch. The operate time
includes the bounce time.
The RELEASE TIME is the time between the instant of removal of an applied
magnetic field to a dry reed switch and the instant of the last physical opening of this switch.
The release time includes the bounce time.
The BOUNCE TIME is the interval of time between the instant of the initial closing (or
opening) and the instant of final closing of the dry reed switch.
Time parameters are determined by measuring time intervals in accordance with
diagrams in Fig.2.
Uc
(V)
1
t
(ms)
Uг
(V)
2
t2
t1
t2
t3
t4
t
(ms)
t5
1- coil voltage
2- reed lead voltage
t1- closing time
t2- bounce time
t3-opening time
t4-operate time
t5- release time
Figure 2
The time parameters are determined when the rectangular pulse is applied to the coil
energized at 1.5 times the operate value.
REED SWITCH RESISTANCE
The reed switch resistance includes the reed blade resistance and the contact resistance.
The contact resistance is measured by the four-point method (Kelvin Method) when the
contacts are closed. The measuring instrument should be connected to the reed switch at a
distance not more than 8 mm from the glass tube. Measuring conditions 6V-10mA or 20mV10mA. The coil is energized at 1.5 times the operate value.
BREAKDOWN VOLTAGE
The BREAKDOWN VOLTAGE is the maximum voltage (AC, DC) the switch can
withstand without leakage between open contacts.
The test voltage is applied to the open reed switch for not less than 1min. or for not
less than 1 sec. when it is increased at 1.1 times. The breakdown current is 1-20 mA.
INSULATION RESISTANCE
The INSULATION RESISTANCE – is the resistance of the reed switch with open
contacts.
It is measured at 100V for not less than 1 min.
REED SWITCH CAPACITANCE
The CAPACITANCE is the capacitance between overlapping reeds in the contact area
in their open position.
The capacitance is measured at a frequency of 1000 Hz and at a voltage of not more
than 50V.
LIFE EXPECTANCY
The life of a dry reed switch is influenced by:
-
The load and the load circuit parameters
-
Switching frequency
-
Ambient temperature
-
The applied magnetic field
METHODS OF OPERATING REED SWITCHES
Operation using a coil
The coil must produce the magneto-motive force required to operate the switch and
hold it closed.
The coil is energized at 1.5 times the operate value.
Figures 3-5 illustrate various methods of operating the switch using a coil
S
N
Figure 3. A dry reed switch mounted within a coil
S
N
Figure 4. A dry reed switch mounted outside a coil
S
N
N
S
Figure 5. A dry-reed switch biased by a permanent magnet
and operated by a coil
Operation using permanent magnets
Various combinations of magnet and the switch positions effect operation.
The main methods of operating are illustrated in figures 6-12.
Solid lines indicate Pull-In, section lines indicate Drop-Out.
Y
N
S
0
Х
Х
-Х
Y
on 2
off 2
on 3
off 1
on 1
off 3
0
-Х
Х
Figure 6
Y
Z
Z
N
S
0
Х
Х
-Х
Y
Z
Y
off 2
off 1
0
on 2
on 1
-Z
Y
Z
off 3
Х
on 3
-Z
-Z
Figure 7
off 1
on 1
Y
Y
off
on
-Х
Z
S
off 2
N
on 2
00
Y
off3
on 3
Х
-Х
Figure 8
Y
Х
S
N
0
Y
Х
-Х
Y
off 1
on 1
on 2
off 2
0
Х
Figure 9
Y
Z
S
Z
N
0
Х
-Х
Y
off1
Z
Y
Y
off 2
Z
0
Х
on1
on 2
off
on
-Z
Figure 10
S
Y
off 2
off1
on 1
-Z
on 2
N
0
Х
-Х
Figure 11
α
off3180˚
on2
on3
0
0
off1
off2
off3
on2
on3
S
off2180˚
on1
0
on1
-Х
off1180˚
Y
α
N
Х
0
-Х
Х
-Х
α
Figure 12
α
Х
Х
OPERATION INSTRUCTIONS
While the reed switch is in use avoid any mechanical stresses with associated hazard of
broken glass and leads.
Care must be taken to prevent from any affect of the external magnetic field.
Reed switches should be operated within characteristics as stated.
The current through contacts must not exceed the maximum switching current, the
supply voltage must not exceed the maximum switching voltage, the load voltage must not
exceed the maximum contact rating.
Stray inductance and capacitance should be taken into account. To reduce their
influence the load should be located within the close proximity of the reed switch.
In case of no load, life time is 108. As the load increases the life time reduces. It is
caused by erosion processes taking place on contact surfaces when reeds close/open. To
enhance reed switch reliability protective circuits are recommended (Figs.13-16).
-When using reed switches for resistive loads the contact-protection is carried out with an RCnetwork (Figure 13).
С
+
– V
R
Rl
Figure 13
To prevent arc striking the following condition must be fulfilled:
R
≤ 10
R + Rl
Where, Vr – reed blade voltage when the contacts are opened, V;
Vr = V
V – supply voltage, V;
R – resistance value, Ohm;
Rl – load resistance, Ohm;
Load resistance is calculated by:
R≥
V
I switch. max . − I l
Where,
Iswitch.max.– maximum switching current, А;
Il – load current, А;
The capacitance value is expressed by:
С=(0,05÷1,0)·Iswitch
Where,
С – capacitance value, µF
Iswitch – switching current, А;
When using reed switches for inductive loads the contact protection is carried out with
a diode (Figure 14).
Ll
+ V
–
Rl
Figure 14
The rated current of the diode must not exceed the switching current.
The reverse rated voltage must not exceed the supply voltage V.
I=
V
Rl
-When using reed switches for capacitive loads the contact protection is carried out
with a resistor (Figure 15).
R
+
–
V
Сl
Figure 15
Rl
The resistance value is calculated by:
R≥V/Iswitch.max.
Or
R>V2/Pmax.
Where,
Imax. – maximum switching current
Pmax. – maximum contact rating.
- When using reed switches for lamp loads the contact protection is carried out with a
resistor (Figure 16).
R
+
–
l
V
Figure 16
To reduce the high inrush current to Iswitch.max. value the following condition must be
fulfilled:
R+Rcl = V/Iswitch.max.
Where,
Rcl.-the cold lamp resistance that is 8-14 times less than the hot lamp resistance
R – the resistance value
MOUNTING INSTRUCTIONS
Reed switches can be used both for plug-in and PCB mounting.
When mounting extreme caution should be exercised not to exert any undue stress that
can result in damage or leakage of the reed switch. It is recommended to provide an adequate
spacing between the reed switches.
When it is necessary to connect more than one wire to the leads the second and all next
wires must be soldered (or welded) to the earlier soldered wire but not to the lead. The wire
section must be equal to the reed lead section.
When welding or soldering reed switches deformation should be minimal. The output
power of the soldering iron must not exceed 100 W. The time of continuous heating of the
leads should not exceed 3 sec.
In case of re-soldering time is needed for the switch to be cooled after the earlier
heating. Soldering is permitted at a temperature of the soldering iron of not more than 2600C.
Recommended distance between the glass end and a bending point should be 3mm
min. When bending a reed switch lead but not glass body should be firmly hold to avoid a
broken glass. Re-bending is not acceptable. Figure 17 shows cutting techniques.
Figure 17
Note: bending and cutting can change pull-in and drop-out characteristics.
QUALITY ASSURANCE AND QUALITY CONTROL AT PRE-SERIES PHASE
(DESIGN AND R&D) AND AT SERIES
A TÜV approved quality system of the factory has been developed and is currently operating
to meet ISO9001 quality requirements.
It is the factory managerial consideration that the factory quality system is the basics of
reliable and honest relationship between customers and suppliers. Following is the basis to
achieve a required quality level:
- State-of-art process application;
- Each employee’s interest in improving product quality;
- Continuous quality improvement;
- On-going personnel education.
Reed switches are UL recognized with File # E229065 for NRNT2 Switches, Industrial
Control-Component.
Figure 18 shows quality control and inspection flow chart for reed switch production cycle.
Cleaning
Wire
Stamping
Incoming
Inspection
Sorting and
Packing
Deburring and
Polishing
Clean Room
Plating
Blade Inspection and
Packing
Sealing
Testing for Electrical
Parameters
Glass Tube
Annealing
Glass Tube
Cleaning
Glass Tube Inspection
and Packing
Visual Inspection
Glass
Fire-Polishing
Leakage Test
Glass Cut
Packing
-
Operator Inspection
-
Quality Control
-
Materials Supplied
Incoming
Inspection
Glass Tube
Figure 18. Quality control and inspection flow chart for the production cycle
Specifications for MKA-07101
Contact form
Contact material
Maximum switching power , W
Maximum switching voltage , V
Maximum switching current, A
Pull in , AT
Drop out, AT min.
Contact resistance, Ohm max.
Breakdown voltage, V dc min.
Insulation resistance, Ohm min.
Operate time, ms max.
Release time, ms max.
Capacitance, pF max.
Resonant frequency, Hz min.
Operate temperature range, º C
High humidity at T=35º C, % max.
Operation frequency, Hz max.
Test coil:
Number of turns
Resistance, Ohm
1A
Ru
1
24
0,1
7-35
4
0,2
150
1·109
0,3
0,1
0,4
12000
-60 +125
98
400
UL file#
E229065
5000
580
Coil energized 1.5 times each stated max. operate value.
Customized switches are available upon request:
with close PI values;
with cut, bent, flat leads;
Life expectancy and reliability
Test modes:
50mV-10mA-5x107 operations min. at operation frequency of 100 Hz with failure
rate 6,7x10 –10 oper -1. min., confidence level of 60%.
5V-10mA-2x107 operations min. at operation frequency of 100 Hz with failure rate
1,7x10 –9 oper -1. min., confidence level of 60%.
Shock
Reed switches are immune to mechanical shocks with peak shock acceleration of 150 g and impulse
duration of 1 ms.
Vibration
Reed switches are immune to sinusoidal vibration at 1-500 Hz and acceleration amplitude of 10 g.
MKA-07101
ELECTRICAL CHARACTERISTICS
(1)
Contact resistance
(2)
Drop-out vs. Pull-in.
AT
99.9
99
50
Drop-out
95
40
90
30
80
70
60
50
40
30
20
20
10
5
10
1
0.1
0
10
20
40
30
120
ÀT
50
(4) Insulation resistance
300
200
100
10
20
30
40
50
AT
DC100V
99
95
90
80
70
60
50
40
30
20
10
5
1
10 9
Pull-in.
1010
1011
1012
1013
Insulation resistance
MECHANICAL CHARACTERISTICS
(5)
Lead tensile strength
99.9
99
95
90
80
70
60
50
40
30
20
10
5
1
0.1
0
2
4
6
Breaking load
m W
99.9
0.1
Cumulative frequency percent
Breakdown voltage
400
Cumulative frequency percent
Breakdown voltage
DC:V
0
200
180
Contact resistance
Pull-in.
(3)
160
140
8
Kg
W
Specifications for MKA-10109
Contact form
Contact material
Maximum switching power , W
Maximum switching voltage , V
Maximum switching current, A
Pull in , AT
Drop out, AT min.
Contact resistance, Ohm max.
Breakdown voltage, V dc min.
Insulation resistance, Ohm min.
Operate time, ms max.
Release time, ms max.
Capacitance, pF max.
Resonant frequency, Hz min.
Operate temperature range, º C
High humidity at T=35º C, % max.
Operation frequency, Hz. max.
Test coil:
Number of turns
Resistance, Ohm
1A
Ru
10
100
0,5
10-35
4
0,1
150
1·109
0,5
0,3
0,5
5000
-60 +125
98
400
UL file#
E229065
Customized switches are available upon request:
5000
580
-
with close PI values;
with cut, bent, flat leads;
Life expectancy and reliability
Test modes:
24V-250mA-1x105 operations min. at operation frequency of 50 Hz with failure rate
3,3x10 –7 oper -1. min., confidence level of 60%.
5V-10mA-5x106 operations min. at operation frequency of 100 Hz with failure rate
6,7x10 –9 oper -1. min., confidence level of 60%.
50mV-5•A-5x106 operations min. at of 100 Hz with failure rate 6,7x10 –9 oper -1. min.,
confidence level of 60%.
These data are valid for a coil energized at 1.5 times stated max. operate value.
Shock
Reed switches are immune to mechanical shocks with peak shock acceleration of 150 g and
impulse duration of 1 ms.
Vibration
Reed switches are immune to sinusoidal vibration at 1-2000 Hz and acceleration amplitude of
10 g.
MKA-10109
ELECTRICAL CHARACTERISTICS
(1)
Drop-out vs. Pull-in
(2)
Contact resistance
99.9
Cumulative frequency percent
AT
50
Drop-out
40
30
20
10
99
95
90
80
70
60
50
40
30
20
10
5
1
0
10
20
30
40
0.1
AT
50
40
60
Pull-in
(3)
W
120
100
80
Contact resistance
Breakdown voltage
(4)
Insulation resistance
(DC 100V)
99.9
Cumulative frequency percent
DC : V
500
300
200
100
95
90
80
70
60
50
40
30
20
10
5
1
0
10
20
30
40
50
0.1
AT
10 9
Pull-in
1010
1011
1012
1013
Insulation resistance
MECHANICAL CHARACTERISTICS
(5)
Lead tensile strength
99.9
Cumulative frequency percent
Breakdown voltage
400
99
99
95
90
80
70
60
50
40
30
20
10
5
1
0.1
0
2
4
6
Breaking load
8
kg
W
Specifications for MKA-14103
Contact form
Contact material
Maximum switching power , W
Maximum switching voltage , V
Maximum switching current, A
Pull in , AT
Drop out, AT min.
Contact resistance, Ohm max.
Breakdown voltage, V dc min.
Insulation resistance, Ohm min.
Operate time, ms max.
Release time, ms max.
Capacitance, pF max.
Resonant frequency, Hz min.
Operate temperature range, º C
High humidity at T=35º C, % max.
Operation frequency, Hz max.
Test coil:
Number of turns
Resistance, Ohm
UL file#
1A
Ru
10
100
0,5
10-35
5
0,1
220 AT≤25
250 AT>25
1·1010
1,0
0,4
0,7
4000
-60 +155
98
100
5000
870
E229065
Customized switches are available upon request:
with close PI values;
with cut, bent, flat leads;
Life expectancy and reliability
Test modes:
5V-10mA-1x108 operations min. at operation frequency of 100 Hz with failure rate
3,3x10 –10 oper -1. min., confidence level of 60%.
24V-400mA-1x105 operations min. at operation frequency of 50 Hz with failure rate
3,3x10 –7 oper -1. min., confidence level of 60%.
These data are valid for a coil energized at 1.5 times stated max. operate value.
Shock
Reed switches are immune to mechanical shocks with peak shock acceleration of 150 g and impulse
duration of 1 ms.
Vibration
Reed switches are immune to sinusoidal vibration at 1-2000 Hz and acceleration amplitude of 20 g.
MKA-14103
ELECTRICAL CHARACTERISTICS
(1)
Drop-out vs. Pull-in
(2)
99.9
Cumulative frequency percent
AT
50
40
Drop-out
Contact resistance
30
20
10
99
95
90
80
70
60
50
40
30
20
10
5
1
0.1
0
10
20
30
40
40
AT
50
Pull-in
(3)
60
100
80
mW
Contact resistance
Breakdown voltage
(4)
Insulation resistance
(DC 100V)
99.9
Cumulative frequency percent
DC : V
300
200
100
0
10
20
30
40
50
99
95
90
80
70
60
50
40
30
20
10
5
1
AT
0.1
Pull-in
10 9
1010
1011
1012
Insulation resistance
MECHANICAL CHARACTERISTICS
(5)
Lead tensile strength
99.9
Cumulative frequency percent
Breakdown voltage
400
99
95
90
80
70
60
50
40
30
20
10
5
1
0.1
0
2
4
6
Breaking load
8
kg
1013
W
Specifications for MKA-16101
Contact form
Contact material
Maximum switching power , W
Maximum switching voltage , V
Maximum switching current, A
Pull in , AT
Drop out, AT min.
Contact resistance, Ohm max.
Breakdown voltage, V dc min.
Insulation resistance, Ohm min.
Operate time, ms max.
Release time, ms max.
Capacitance, pF max.
Resonant frequency, Hz min.
Operate temperature range, º C
High humidity at T=35º C, % max.
Operation frequency, Hz max.
Test coil:
Number of turns
Resistance, Ohm
UL file#
1A
Ru
5 (lamp load)
10 (resistive load)
100
0,5
10-35
5
0,1
220
1·109
0,6
0,4
0,3
3000
-60 +125
98
400
5000
620
E229065
Customized switches are available upon request:
with close PI values;
with cut, bent, flat leads;
Life expectancy and reliability
Test modes:
24V-250mA-1x106 operations min. at operation frequency of 100 Hz with failure rate
3,3x10 –8 oper -1. min., confidence level of 60%.
5V-10mA-2x106 operations min. at operation frequency of 100 Hz with failure rate
1,7x10 –8 oper -1. min., confidence level of 60%.
50mV-5•A-1x108 operations min. at operation frequency of 100 Hz with failure rate 3,3x10 –10
oper -1. min., confidence level of 60%.
14,5V-270 mA (lamp load) -1x105 operations min. at operation frequency of 1 Hz with failure
rate 3,3x10 –7 oper -1. min., confidence level of 60%.
These data are valid for a coil energized at 1.5 times stated max. operate value.
Shock
Reed switches are immune to mechanical shocks with peak shock acceleration of 150 g and impulse
duration of 1 ms.
Vibration
Reed switches are immune to sinusoidal vibration at 1-2000 Hz and acceleration amplitude of 10 g.
MKA-16101
ELECTRICAL CHARACTERISTICS
(1)
Drop-out vs. Pull-in
(2)
99.9
Cumulative frequency percent
AT
50
40
Drop-out
Contact resistance
30
20
10
99
95
90
80
70
60
50
40
30
20
10
5
1
0.1
0
10
20
30
40
40
AT
50
Pull-in
(3)
60
100
80
mW
Contact resistance
Breakdown voltage
(4)
Insulation resistance
(DC 100V)
99.9
Cumulative frequency percent
DC : V
300
200
100
0
10
20
30
40
50
99
95
90
80
70
60
50
40
30
20
10
5
1
AT
0.1
Pull-in
10 9
1010
1011
1012
Insulation resistance
MECHANICAL CHARACTERISTICS
(5)
Lead tensile strength
99.9
Cumulative frequency percent
Breakdown voltage
400
99
95
90
80
70
60
50
40
30
20
10
5
1
0.1
0
2
4
6
Breaking load
8
kg
1013
W
Specifications for KAM-2
Contact form
Contact material
Maximum switching power , W
Maximum switching voltage , V
Maximum switching current, A
Pull in , AT
Drop out, AT min.
Contact resistance, Ohm max.
Breakdown voltage, V dc min.
Insulation resistance, Ohm min.
Operate time, ms max.
Release time, ms max.
Capacitance, pF max.
Resonant frequency, Hz min.
Operate temperature range, º C
High humidity at T=35º C, % max.
Operation frequency, Hz max.
Test coil:
Number of turns
Resistance, Ohm
UL file#
1A
Ru
10
180
0,5
15-64
5
0,15
250
1·109
1,0
0,5
0,4
2400
-60 +125
98
100
5000
550
E229065
Customized switches are available upon request:
with close PI values;
with cut, bent, flat leads;
Life expectancy and reliability
Test modes:
24V-250mA-1x106 operations min. at operation frequency of 100 Hz with failure rate 3,3x10
–8oper -1. min., confidence level of 60%.
5V-10mA-3x106 operations min. at operation frequency of 100 Hz with failure rate 1,1x10 –8
oper -1. min., confidence level of 60%.
These data are valid for a coil energized at 1.5 times stated max. operate value.
Shock
Reed switches are immune to mechanical shocks with peak shock acceleration of 150 g and
impulse duration of 1 ms.
Vibration
Reed switches are immune to sinusoidal vibration at 1-600 Hz and acceleration amplitude of 10 g.
KAM-2
ELECTRICAL CHARACTERISTICS
(1)
Drop-out vs. Pull-in
(2)
99.9
Cumulative frequency percent
AT
50
40
Drop-out
Contact resistance
30
20
10
99
95
90
80
70
60
50
40
30
20
10
5
1
0.1
0
20
40
60
80
50
AT
100
Pull-in
(3)
100
150
200
mW
Contact resistance
Breakdown voltage
(4)
Insulation resistance
(DC 100V)
99.9
Cumulative frequency percent
DC : V
300
200
100
0
20
40
60
80
100
99
95
90
80
70
60
50
40
30
20
10
5
1
AT
0.1
Pull-in
10
9
1010
10
11
12
10
Insulation resistance
MECHANICAL CHARACTERISTICS
(5)
Lead tensile strength
99.9
Cumulative frequency percent
Breakdown voltage
400
99
95
90
80
70
60
50
40
30
20
10
5
1
0.1
0
2
4
6
Breaking load
8
kg
10 13
W
Specifications for MKA-20101
Contact form
Contact material
Maximum switching power , W
Maximum switching voltage , V
Maximum switching current, A
Pull in , AT
Drop out, AT min.
Contact resistance, Ohm max.
Breakdown voltage, V dc min.
Insulation resistance, Ohm min.
Operate time ,ms max.
Release time, ms max.
Capacitance, pF max.
Resonant frequency, Hz min.
Operate temperature range, º C
High humidity at T=35º C, % max.
Operation frequency, Hz max.
Test coil:
Number of turns
Resistance, Ohm
UL file #
1A
Ru
10
180
0,5
10-40
4
0,15
220 (AT≤20)
280 (AT>20)
1·109
1,0
0,3
0,4
2600
-60 +125
98
100
5000
550
E229065
Customized switches are available upon request:
with close PI values;
with cut, bent, flat leads;
Life expectancy and reliability
Test modes:
24V-250mA-1x106 operations min. at operation frequency of 100 Hz with failure rate
3,3x10 –8 oper -1. min., confidence level of 60%.
5V-10mA-1x107 operations min. at operation frequency of 100 Hz with failure rate
3,3x10 –9 oper -1. min., confidence level of 60%.
These data are valid for a coil energized at 1.5 times stated max. operate value.
Shock
Reed switches are immune to mechanical shocks with peak shock acceleration of 150 g and impulse
duration of 1 ms.
Vibration
Reed switches are immune to sinusoidal vibration at 1-2000 Hz and acceleration amplitude of 20 g.
MKA-20101
ELECTRICAL CHARACTERISTICS
(1)
Drop-out vs. Pull-in
(2)
99.9
Cumulative frequency percent
AT
25
20
Drop-out
Contact resistance
15
10
5
99
95
90
80
70
60
50
40
30
20
10
5
1
0.1
0
10
20
30
40
50
AT
50
Pull-in
(3)
Breakdown voltage
(4)
DC : V
500
200
mW
Insulation resistance
(DC 100V)
Cumulative frequency percent
300
200
100
10
20
30
40
99
95
90
80
70
60
50
40
30
20
10
5
1
AT
50
0.1
Pull-in
10
9
1010
10
11
12
10
Insulation resistance
MECHANICAL CHARACTERISTICS
(5)
Lead tensile strength
99.9
Cumulative frequency percent
Breakdown voltage
150
99.9
400
0
100
Contact resistance
99
95
90
80
70
60
50
40
30
20
10
5
1
0.1
0
2
4
6
Breaking load
8
kg
10 13
W
Specifications for MKA-50201
Contact form
Contact material
Maximum switching power , W
Maximum switching voltage , V
Maximum switching current, A
Pull in , AT
Drop out, AT min.
Contact resistance, Ohm max.
Breakdown voltage, V dc min.
Insulation resistance, Ohm min.
Operate time, ms max.
Release time, ms max.
Capacitance, pF max.
Resonant frequency, Hz min.
Operate temperature range, º C
High humidity at T=35º C, % max.
Operation frequency, Hz max.
Test coil:
Number of turns
Resistance, Ohm
1A
Mo
120
250
3,0
50-90
20
0,15
700
1·109
2,0
1
1
700
-60 +100
98
25
UL file#
E229065
Customized switches are available upon request:
5000
335
-
with close PI values;
with cut, bent, flat leads;
Life expectancy and reliability
Test modes:
24V-0,25A-1x106 operations min. at operation frequency of 25 Hz with failure rate
3,3x10 –8 oper -1. min., confidence level of 60%.
220V-0,55A-1x104 operations min. at operation frequency of 10 Hz with failure rate
3,3x10 –6 oper -1. min., confidence level of 60%.
These data are valid for a coil energized at 1.5 times stated max. operate value.
Shock
Reed switches are immune to mechanical shocks with peak shock acceleration of 150 g and
impulse duration of 2 ms.
Vibration
Reed switches are immune to sinusoidal vibration at 1-500 Hz and acceleration amplitude of 10 g.
MKA-50201
ELECTRICAL CHARACTERISTICS
(1)
Drop-out vs. Pull-in
(2)
AT
99.9
99
Cumulative frequency percent
60
Drop-out
Contact resistance
50
40
30
20
95
90
80
70
60
50
40
30
20
10
5
1
0.1
0
20
40
80
60
100
Pull-in
(3)
40
AT,
80
120
160
mW
Contact resistance
Breakdown voltage
(4)
Insulation resistance
(DC100V)
DC:V
Cumulative frequency percent
99.9
800
600
400
200
0
20
40
60
80
100
AT
99
95
90
80
70
60
50
40
30
20
10
5
1
0.1
1010
Pull-in
1011
1012
1014
Insulation resistance
MECHANICAL CHARACTERISTICS
(5)
Lead tensile strength
99.9
Cumulative frequency percent
Breakdown voltage
1000
99
95
90
80
70
60
50
40
30
20
10
5
1
0.1
0
10
20
30
Breaking load
40
Êg
1015
W
Specifications for MKA-50202
Contact form
Contact material
Maximum switching power , W
Maximum switching voltage , V
Maximum switching current, A
Pull in , AT
Drop out, AT min.
Contact resistance, Ohm max.
Breakdown voltage, V dc min.
Insulation resistance, Ohm min.
Operate time, ms max.
Release time, ms max.
Capacitance, pF max.
Resonant frequency, Hz min.
Operate temperature range, º C
High humidity at T=35º C, % max.
Operation frequency, Hz max.
Test coil:
Number of turns
Resistance, Ohm
1A
Mo
250
250
5
50-100
20
0,15
700
1·109
2,0
1
1
700
-60 +100
98
5
UL file#
E229065
5000
335
Customized switches are available upon request:
with close PI values;
with cut, bent, flat leads;
Life expectancy and reliability
Test modes:
250V-1A-1x105 operations min. at operation frequency of 5 Hz with failure rate
3,3x10 –7 oper -1. min., confidence level of 60%.
These data are valid for a coil energized at 1.5 times stated max. operate value.
Shock
Reed switches are immune to mechanical shocks with peak shock acceleration of 150 g and
impulse duration of 2 ms.
Vibration
Reed switches are immune to sinusoidal vibration at 1-500 Hz and acceleration amplitude of 10 g.
MKA-50202
ELECTRICAL CHARACTERISTICS
(1)
Drop-out vs. Pull-in
(2)
99.9
Cumulative frequency percent
AT
60
50
Drop-out
Contact resistance
40
30
20
99
95
90
80
70
60
50
40
30
20
10
5
1
0.1
0
20
40
60
80
100
40
AT
Pull-in
(3)
80
160
120
mW
Contact resistance
Breakdown voltage
(4)
Insulation resistance
(DC 100V)
99.9
Cumulative frequency percent
DC : V
800
600
400
200
0
20
40
60
80
100
99
95
90
80
70
60
50
40
30
20
10
5
1
AT
0.1
Pull-in
1010
1011
1012
1014
Insulation resistance
MECHANICAL CHARACTERISTICS
(5)
Lead tensile strength
99.9
Cumulative frequency percent
Breakdown voltage
1000
99
95
90
80
70
60
50
40
30
20
10
5
1
0.1
0
10
20
30
Breaking load
40
kg
1015
W
Specifications for KAM-3
Contact form
Contact position, mm
Contact material
Maximum switching power , W
Maximum switching voltage , V
Maximum switching current, A
Pull in , AT
Drop out, AT min.
Contact resistance, Ohm max.
Breakdown voltage, V dc min.
Insulation resistance NC/NO, Ohm min.
Operate time, ms max.
Release time, ms max.
Capacitance NC/NO, pF max.
Resonant frequency, Hz min.
Operate temperature range, º C
High humidity at T=35º C, % max.
Operation frequency, Hz max.
Test coil:
Number of turns
Resistance, Ohm
UL file#
1C
11,0
Ru
30
125
1,0
30-80
10
0,15
180 AT≤55
280 AT>55
2·108/1•109
1,5
2,0
2,5/0,5
3000
-60 +100
98
50
5000
455
E229065
Customized switches are available upon request:
with close PI values;
with cut, bent, flat leads;
Life expectancy and reliability
Test modes:
24V-250mA-5x105 operations min. at operation frequency of 50 Hz with failure rate 6,7x10 –8 oper -1.
min., confidence level of 60%.
5V-10mA-1x106 operations min. at operation frequency of 50 Hz with failure rate 3,3x10 –8 oper -1. min.,
of 60%.
These data are valid for a coil energized at 1.5 times stated max. operate value.
Shock
Reed switches are immune to mechanical shocks with peak shock acceleration of 150 g and impulse
duration of 1 ms.
Vibration
Reed switches are immune to sinusoidal vibration at 1-600 Hz and acceleration amplitude of 10 g.
ÊAÌ-3
ELECTRICAL CHARACTERISTICS
(1)
Drop-out vs. Pull-in
(2)
99.9
Cumulative frequency percent
AT
50
40
Drop-out
Contact resistance
30
20
10
99
95
90
80
70
60
50
40
30
20
10
5
1
0.1
0
30
40
50
60
70
40
AT
Pull-in
(3)
60
100
80
mW
Contact resistance
Breakdown voltage
(4)
Insulation resistance
(DC 100V)
99.9
Cumulative frequency percent
DC : V
400
300
200
0
20
30
40
50
60
70
99
NC
NO
95
90
80
70
60
50
40
30
20
10
5
1
AT
0.1
Pull-in
1010
1011
1012
1014
Insulation resistance
MECHANICAL CHARACTERISTICS
(5)
Lead tensile strength
99.9
Cumulative frequency percent
Breakdown voltage
500
99
95
90
80
70
60
50
40
30
20
10
5
1
0.1
5
10
15
20
Breaking load
25
kg
1015
W
Specifications for MKC-27103
Contact form
Contact position, mm
Contact material
Maximum switching power , W
Maximum switching voltage , V
Maximum switching current, A
Pull in , AT
Drop out, AT min.
Contact resistance, Ohm max.
Breakdown voltage, V dc min.
Insulation resistance NC/NO, Ohm min.
Operate time, ms max.
Release time, ms max.
Capacitance NC/NO, pF max.
Resonant frequency, Hz min.
Operate temperature range, º C
High humidity at T=35º C, % max.
Operation frequency, Hz max.
Test coil:
Number of turns
Resistance, Ohm
UL file#
1C
17,0
Ru
30
200
1,0
45-90
16
0,15
350
5·108/1•109
1,5
2,5
2,0/1,0
2200
-60 +100
98
50
5000
450
E229065
Customized switches are available upon request:
with close PI values;
with cut, bent, flat leads;
Life expectancy and reliability
Test modes:
30V-100mA-5x105 operations min. at operation frequency of 10 Hz with failure rate 6,7x10 –8
oper -1. min., confidence level of 60%.
60V-200mA-1x105 operations min. at operation frequency of 10 Hz with failure rate 3,3x10 –7
oper -1. min., confidence level of 60%.
These data are valid for a coil energized at 1.5 times stated max. operate value.
Shock
Reed switches are immune to mechanical shocks with peak shock acceleration of 150 g and
impulse duration of 1 ms.
Vibration
Reed switches are immune to sinusoidal vibration at 1-1000 Hz and acceleration amplitude of
10 g.
MKC-27103
ELECTRICAL CHARACTERISTICS
(1)
Drop-out vs. Pull-in
(2)
99.9
Cumulative frequency percent
AT
50
40
Drop-out
Contact resistance
30
20
10
99
95
90
80
70
60
50
40
30
20
10
5
1
0.1
0
40
50
60
70
80
40
AT
Pull-in
(3)
60
100
80
mW
Contact resistance
Breakdown voltage
(4)
Insulation resistance
(DC 100V)
99.9
Cumulative frequency percent
DC : V
400
300
200
0
30
40
50
60
70
80
99
95
90
NO
NC
80
70
60
50
40
30
20
10
5
1
AT
0.1
Pull-in
10 9
1010
1011
1012
Insulation resistance
MECHANICAL CHARACTERISTICS
(5)
Lead tensile strength
99.9
Cumulative frequency percent
Breakdown voltage
500
99
95
90
80
70
60
50
40
30
20
10
5
1
0.1
15
20
25
30
Breaking load
35
kg
1013
W