OMRON G6Y-1-DC5

Omron A5 Catalogue 2006 1-294
14/10/05
9:40 am
Page 252
High-Frequency Signal Relay – G6Y
Text
Switching Structure Based on the
Micro Strip Line is Used to Combine
High Performance and Costeffectiveness
■ ROHS compliant.
■ Isolation characteristics of 65 dB or better at
900 MHz.
■ Effective insertion loss characteristics of 0.2
dB or better at 900 MHz (half the loss of
earlier models).
■ Fully sealed construction provides excellent
environmental resistance.
■ Improved shock-resistance (double the
resistance of earlier models).
Ordering Information
Class
Sealing
Contact configuration
Basic Type
SPDT
Fully sealed
Rated coil voltage
4.5 VDC
Model
G6Y-1
5 VDC
9 VDC
12 VDC
24 VDC
Model Number Legend
(( VDC
G6Y-
1 2
1. Number of contact poles
1:
■
Single pole (SPDT contact)
Basic Specifications
• Contact Mechanism: Double-braking bifurcated contact
• Contact Material: Gold alloy
2. Rated Coil Voltage
4.5, 5, 9, 12, 24 VDC
• Sealing: Fully sealed
• Terminal Configuration:
configuration
Printed
circuit
board
terminal
Application Examples
Signal Switching in Various Communications Equipment
• Wired Communications: Cable TV, captain systems, and video response systems (VRS)
• Wireless Communications: Transceivers, ham radio, car telephones, high-level TV, fax machines, satellite broadcasting, text multiplex
broadcasting, and pay TV
• Public Equipment: VCRs, TVs, video disk players, and TV games
• Industrial Equipment: Measuring equipment, test equipment, and multiplex transmission devices
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Text
High-Frequency Signal Relay – G6Y
■
Ratings
Class
Item
Rated voltage
(V)
Basic Type DC
Rated
current
(mA)
Coil
resistance
(Ω)
4.5
44.4
101
5
40.0
125
9
22.2
405
12
16.7
720
24
8.3
2,880
Operating
voltage
(V)
75% max.
Release
voltage
(V)
10% min.
Max. allowed
voltage
(V)
Power
consumption
(mW)
150% of
rated voltage
at 23˚C
Approx. 200
Note: The rated current and coil resistance are measured at a coil temperature of 23°C with a tolerance of ±10%.
The operating characteristics are measured at a coil temperature of 23°C.
The “Max. allowed voltage” is the maximum voltage that can be applied to the relay coil. It is not the maximum voltage that can
be applied continuously.
Contact Ratings
High-frequency Characteristics
Load
Resistive load
250 MHz
900 MHz
2.5 GHz
Rated voltage
0.01 A at 30 VAC
0.01 A at 30 VDC
900 MHz, 1 W (see note)
Isolation
80 db min.
65 dB min.
30 dB min.
Insertion loss
0.5 dB max.
0.5 dB max.
–
Au
V.SWR
1.5 max.
1.5 max.
–
Rated carry current
0.5 A
Max. carry
power
10 W
–
Max. switching voltage
30 VAC
30 VDC
Max. switching
power
10 W (see note 3)
–
Max. switching current
0.5 A
Max. switching power
(reference value)
AC10VA
DC10W
Contact material
Item
Note: 1. The impedance of the measuring system is 50 Ω.
2. The table above shows preliminary values.
3. This value is for a load with V.SWR x 1.2
Note: This value is for a load with V.SWR x 1.2.
■
Characteristics
Contact resistance
(see note 1)
100 mΩ max.
Operating time
10 ms max. (approx. 5 ms)
Release time
5 ms max. (approx. 1 ms)
Insulation resistance
(see note 2)
100 mΩ min.
Dielectric strength
1,000 VAC, 50/60 Hz for 1 min between coil and contacts
500 VAC, 50/60 Hz for 1 min between contacts of same polarity
500 VAC, 50/60 Hz for 1 min between coil and ground and between contacts and ground
Vibration resistance
Destruction: 10 Hz to 55 to 10 Hz, 0.75-mm single amplitude (1.5 mm double amplitude)
Malfunction: 10 Hz to 55 to 10 Hz, 0.75-mm single amplitude (1.5 mm double amplitude)
Shock resistance
Destruction: 1,000 m/s2
Malfunction: 500 m/s2
Endurance
Mechanical: 1,000,000 operations min. (at 1,800 operations/hr)
Electrical: 300,000 operations min. (under rated load at 1,800 operations/hr)
Failure rate (reference
value (see note 3))
10 mVDC, 10 µA
Ambient temperature
Operating: -40°C to 70°C (with no icing)
Ambient humidity
Operating: 5% to 85%
Weight
Approx. 5 g
Note: The table above shows preliminary values.
1. Measurement Conditions: 5 VDC, 100 mA, voltage drop method
2. Measurement Conditions: Measured at the same points as the dielectric strength using a 500-VDC ohmmeter.
3. This value is for a switching frequency of 120 operations/minute.
253
Signal Relays
Operational Coil
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High-Frequency Signal Relay – G6Y
Text
Engineering Data
Ambient Temperature vs.
Maximum Coil Voltage
Contact Reliability Test
(See Note)
Malfunctioning Shock
Y
1,200 min.
200
Sample: G6Y-1, 12 VDC
Quantity: 20 Units
Conditions: Resistive load:
10 mVDC 0.01 mA
Switching frequency:
120 times/minute
Maximum coil voltage (%)
1,000
1,200 min.
180
1,200 min.
800
X
Z'
600
400
160
N.O. contact
N.C. contact
200
(150)
200
140
600
Z
120
1,200 min.
X'
800
1,200 min.
1,000
N.O. contact
N.C. contact
1,200 min. Y'
100
0
Contact resistance
400
(130)
10
20
30
40
50
60
70
80
Units: m/s
Y
90 100
X
Z
Z'
Y'
Ambient temperature (°C)
2
X'
Number of operations (×10 4 )
Shock direction
Note: Ambient temperature of 23°C
Quantity Tested: 10 Units
Note: The maximum coil voltage refers to Test Method: Shock was applied 3 times in
each direction with and with
the maximum value in a varying
out excitation and the level at
range of operating power voltage,
which the shock caused mal
not a continuous voltage.
function was measured.
Rating: 500 m/s 2
50-Ω Terminator
HP8753D
Network
Analyzer
G6Y-1
Terminals which were not being measured were terminated with 50 Ω.
Note: The high-frequency characteristics data were measured using a dedicated circuit board and actual values will vary depending on the usage conditions.
Check the characteristics of the actual equipment being used.
50
60
70
0
0.1
0.2
0.3
0.4
0
2.2
10
2
20
1.8
30
0.5
1.6
Return loss
0.6
40
1.4
0.7
80
0.8
50
90
1.2
V.SWR
0.9
100
0
500
1,000
1,500
2,000
2,500
Frequency (MHz)
254
1
0
500
1,000
1,500
2,000
2,500
Frequency (MHz)
60
0
500
1,000
1,500
2,000
2,500
Frequency (MHz)
1
V.SWR
40
Return loss (dB)
Insertion loss (dB)
Isolation (dB)
30
V.SWR, Return Loss
Characteristics (Average
Values) (See notes 1 and 2.)
Insertion Loss Characteristics
(Average Values) (See notes
1 and 2.)
Isolation Characteristics
(Average Values) (See notes
1 and 2.)
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50
Bounce Time Distribution
(See Note)
Operating time
Sample: G6Y-1
Quantity: 50 Units
Release time
40
50
Release bounce time
40
30
30
20
20
10
10
0
Operating bounce time
Subject: G6Y-1
Quantity: 50 Units
Signal Relays
Operating/Release Time
Distribution (See Note)
Quantity
Quantity
Text
High-Frequency Signal Relay – G6Y
Note: Ambient temperature: 23°C
1
2
3
4
5
6
7
8
0
1
2
3
4
5
Time (ms)
6
7
8
Time (ms)
Dimensions
Note: All units are in millimeters unless otherwise indicated.
G6Y-1
PCB Dimensions
(Bottom View)
Tolerances: ±0.1 mm.
Terminal Arrangement/
Internal Connections
(Bottom View)
Six, 1.2-dia. holes
20.7 max.
(20.5)*
Three, 0.8-dia. holes
11.7 max.
(11.5)*
(1.83)
9.2 max.
(9.0)*
3
7.62
15.24
(2.05)
* Average value
(2.05)
(2.63)
(2.63)
(Holes for the coil terminals may also be 1.0.)
(There is no polarity to the coil.)
Note: The shaded and unshaded parts indicate the product's directional marks.
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High-Frequency Signal Relay – G6Y
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■
Correct Use
Airtightness when cleaning will last 1 minute at 70˚C. Complete
cleaning within these conditions.
MICRO STRIP LINE DESIGN
• It is advantageous to use the Micro Strip Line in high–frequency
transmission circuits because a low-loss transmission can be
constructed with this method. By etching the dielectric base
which has copper foil attached to both sides, the Micro Strip
Line will have a concentrated electric field between the lines and
ground as shown in the following diagram.
Lines with impedance Z
Ground pattern
Dielectric base
(dielectric constant: εr)
• The characteristic impedance of the lines ZO is determined by
the kind of base (dielectric constant), the base’s thickness, and
the width of the lines, as expressed in the following equation.
ZO =
r
W
H
1+ 2H
πW
1+In
πW
H
• The following graph shows this relationship.
Micro Strip impedance ( Ω)
Elbow
Clip the corners.
W: Line width
: Effective dielectric constant
H: Dielectric base thickness
The copper foil thickness must be less than H.
Dielectric constant (εr)
Micro Strip (w/h)
256
BENDING THE MICRO STRIP LINE
Strip Line with impedance Z
377
ε
• For example, when creating 50 Ω lines using a glass epoxy base
with a thickness of 1.6 mm, the above graph will yield a w/h ratio
of 1.7 for a dielectric constant of 4.8. Since the base thickness
is 1.6 mm, the width will be h ∞ 1.7 ≈ 2.7 mm.
• The thickness of the copper foil “t” is ignored in this design
method, but it must be considered because large errors will
occur in extreme cases such as a foil thickness of t ≈ w.
Furthermore, with the Micro Strip Line design, the lines are too
short for the G6Y’s intended frequency bandwidths, so we can
ignore conductive losses and the line’s attenuation constant.
• The spacing of the Strip Lines and ground pattern should be
comparable to the width of the Strip Lines.
• Design the pattern with the shortest possible distances.
Excessive distances will adversely effect the high-frequency
characteristics.
• Spread the ground patterns as widely as possible so that
potential differences are unlikely to develop between the ground
patterns.
• To avoid potential short-circuits, do not place the pattern’s leads
near the point where the bottom of the Relay attaches to the
board.
45°C
When the lines must curve, an
elbow can be used as shown
in the diagram. A distance (D)
between the lines of approximately twice the line width is
sufficient.
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EXAMPLES OF MOUNTING DESIGNS
Since this example emphasizes reducing mounting costs,
expensive mounting methods such as through-hole boards are
not shown. If such methods are to be used, the characteristics
must be studied carefully using the actual board configuration.
Using a Double-sided Paper Epoxy Board
When double-sided paper epoxy boards are used, the dielectric
constant will be approximately the same as that of glass epoxy
boards ( = 4.8).
The width of the Strip Lines for a board with t=1.6 mm is 2.7 mm
for 50 Ω and 1.3 mm for 75 Ω. For a board with t=1.0 mm the
width is 1.7 mm for 50 Ω and 0.8 mm for 75 Ω.
The following diagram shows an example pattern and the Micro
Strip Lines connected to the contact terminals are formed with
pattern widths derived from the description above. The width
between the Micro Strip Lines and ground patterns are
comparable to the Micro Strip Line width.
There are jumpers between the upper and lower patterns at the
points marked with Xs in the diagram. Improved characteristics
can be obtained with more jumper locations. This method yields
isolation characteristics of 65 dB to 75 dB at 500 MHz and 50 dB
at 900 MHz.
At this point in the diagram the component side is the
entire ground pattern side, but set aside approximately
2.0 mm ∞ 2.0 mm of the pattern for the contact terminals and coil
terminals.
Strip Line
With this method a metal plate is placed between the Relay and
base and connected to the pattern, as shown in the above
diagram. The important point here is that 3 locations (the G6Y’s
ground terminal, the metal plate’s bent tabs (A), and the ground
pattern) are soldered together at the same time. This method
combines an inexpensive single-sided board and inexpensive
metal plate to yield the same characteristics as a double-sided
board and good characteristics are obtained by grounding the
G6Y’s ground terminal and metal plate in the same place.
The metal plate must be attached to the base as described here.
From this point, the methods used for Strip Line design are the
same as for the double-sided board.
Mounting Precautions
Be sure to securely attach the Relay’s base surface to the board
during installation. The isolation characteristics will be affected if
the Relay lifts off the board.
As shown in the enlarged illustration of the cross-section of part
A, the G6Y is designed to ensure better high-frequency
characteristics if the stand-off part of the G6Y is in contact with
the ground pattern of the PCB. Therefore, the ground terminal and
stand-off part are electrically connected internally.
Should the through hole electrically connected to the contact
terminal come in contact with the stand-off part, the contact will
be short-circuited with the ground, which may cause an accident.
As a preventive measure, keep at least a distance of 0.3 mm
between the stand-off part and the through hole or land.
For example, if the terminal hole on the PCB is 1 mm in diameter
and the length B shown in the illustration is 1.4 mm, a distance of
0.3 mm or more will be provided between the through hole and
stand-off part.
PCB Mounting
G6Y
Coil
Part A
Using a Single-sided Board
When a single-sided board is used, isolation characteristics of
only 60 dB to 70 dB at 200 MHz can be obtained. When high
frequency bands are to be used with a single-sided board, a metal
plate can be placed between the base and Relay and connected
to the ground pattern.
Metal plate
Cross-section of Part A
Stand-off
part
Through
hole
Ground terminal
Ground
pattern
Contact
terminal
Ground terminal
Ground terminals
G6Y
Metal plate
Printed circuit board
Pattern
257
Signal Relays
Text
High-Frequency Signal Relay – G6Y