PANASONIC-ARA220A1HZ
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Microwave Devices
RA RELAYS
Product Catalog
2022.4
Microwave Devices
REL
A
Y
S
RA
1 GHz capable, 3 W carrying power (at 1 GHz), 50 Ω, 2 Form C relays
FEATURES
Protective construction
：
Sealed type
Excellent high frequency characteristics (50 Ω, up to
1 GHz)
Small size:
9.7(W) × 14.7(L) × 5.9(H) mm
High sensitivity: 140 mW rated operating power
(single side stable and 2 coil latching)
9.7
14.7
5.9
TYPICAL APPLICATIONS
Communication and measurement equipment
Note: If you consider using applications with low level loads or with high frequency
switching, please consult us.
（
Unit
：
mm
）
HIGH FREQUENCY CHARACTERISTICS
50 Ω (Initial)
Frequency
Up to
1
GHz
V
.
S.W.R. (Max.)
1
.
2
Insertion loss (dB, Max.)
0
.
3
Between open contacts
Between contact sets
20
30
Isolation (dB, Min.)
ORDERING INFORMATION (PART NO.)
ARA 2
0 A
Operating function
0
：
Single side stable
1
：
1 coil latching
2
：
2 coil latching
Terminal shape
A
：
Surface-mount terminal
Packing style
Nil
：
Tube packing
X
：
Tape and reel packin
g
（
picked from 1 pin side
）
Z
：
Tape and reel packin
g
（
picked from 10 pin side
）
Contact arrangement
2
：
2 Form C
Rated coil voltage, V DC
Type of operation
0
：
Standard typ
e
（
B.B.M
）
1H
：
1.5
V
,
0
3
：
3
V
,
4
H
：
4.5
V
,
0
5
：
5
V
,
0
6
：
6
V
,
0
9
：
9
V
,
12
：
12
V
,
2
4
：
24
V
,
4
8
：
48 V
（
H=0.5
）
Notes
：
1. 48 V coil type
：
Single side stable only
2. Packing style symbo
l
“
X
”
,
“
Z
”
is not marked on the relay.
Panasonic Industry Co., Ltd. Electromechanical Control Business Division
Panasonic Industry Co., Ltd. 2022
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Microwave Devices RA RELAYS
TYPES
Surface-mount terminal
Tube packing
Part No.
Standard packing
Contact
Rated coil voltage
arrangement
Inner carton
-tube)
Outer
carton
Single side stable
1
coil latching
2
coil latching
(
1
1
4
.
5
3
5
5
6
9
V DC
V DC
V DC
V DC
V DC
V DC
ARA
200
ARA
200
ARA
200
ARA
200
ARA
200
ARA
200
ARA
200
ARA
200
ARA
200
A
A
A
A
A
A
A
A
A
1
H
ARA
210
A
A
A
A
A
A
A
A
1
H
ARA
220
A
A
A
A
A
A
A
A
1
H
03
ARA
210
ARA
210
ARA
210
ARA
210
ARA
210
ARA
210
ARA
210
–
03
ARA
220
ARA
220
ARA
220
ARA
220
ARA
220
ARA
220
ARA
220
–
03
.
4
H
4
H
4
H
05
06
09
12
24
48
05
06
09
12
24
05
06
09
12
24
2
Form C
40
pcs.
1
,
000
pcs.
12
V DC
24
V DC
48
V DC
T
a
pe and reel packing Z
Contact
Part No.
Standard packing
Inner carton
(
T
a
pe and
reel)
Rated coil voltage
Outer
arrangement
Single side stable
1
coil latching
2
coil latching
carton
1
4
.
5
3
5
5
6
9
V DC
V DC
V DC
V DC
V DC
V DC
ARA
200
ARA
200
ARA
200
ARA
200
ARA
200
ARA
200
ARA
200
ARA
200
ARA
200
A
A
A
A
A
A
A
A
A
1
HZ
03
HZ
ARA
210
A
A
A
A
A
A
A
A
1
HZ
03
HZ
ARA
220
ARA
220
ARA
220
ARA
220
ARA
220
ARA
220
ARA
220
ARA
220
–
A
A
A
A
A
A
A
A
1
HZ
03
HZ
Z
ARA
210
ARA
210
ARA
210
ARA
210
ARA
210
ARA
210
ARA
210
–
Z
Z
.
4
4
4
05
06
09
12
24
48
Z
Z
Z
Z
Z
Z
05
06
09
12
24
Z
Z
Z
Z
Z
05
06
09
12
24
Z
Z
Z
Z
Z
2
Form C
500
pcs.
1
,
000
pcs.
12
V DC
24
V DC
48
V DC
RATING
Coil data
• Operating characteristics such as ‘Operate voltage’ and ‘Release voltage’ are influenced by mounting conditions, ambient
temperature, etc.
Therefore, please use the relay within ±5% of rated coil voltage.
• ‘Initial’ means the condition of products at the time of delivery.
Single side stable
Rated operating
current
(±
10
%, at
20
°C)
Max. allowable
voltage
(at
20
°C)
Operate voltage*
(at
20
°C)
Release voltage*
(at
20
°C)
Coil resistance
(±
10
%, at
20
°C)
Rated operating
power
Rated coil voltage
1
4
.
5
3
5
5
6
9
V DC
V DC
V DC
V DC
V DC
V DC
93
46
.
.
8
7
mA
mA
16
64
Ω
Ω
Ω
Ω
Ω
Ω
Ω
Ω
.
3
.
31
mA
145
178
257
579
028
880
28
23
15
11
8
.
.
.
.
.
1
3
5
7
3
mA
mA
mA
mA
mA
140
mW
150
% V of rated
coil voltage
Max.
75
% V of
rated coil voltage
(Initial)
Min.
10
% V of
rated coil voltage
(Initial)
12
V DC
24
V DC
1
2
,
,
200
mW
300
mW
120
% V of rated
coil voltage
48
V DC
6
.
3
mA
7
,
680
Ω
*Square, pulse drive
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Microwave Devices RA RELAYS
1 coil latching
Rated operating
current
(±
10
%, at
20
°C)
Max. allowable
voltage
(at
20
°C)
Rated coil
voltage
Set voltage*
(at
20
°C)
Reset voltage*
(at
20
°C)
Coil resistance
(±
10
%, at
20
°C)
Rated operating power
1
.
.
5
3
5
5
6
9
V DC
V DC
V DC
V DC
V DC
V DC
46
23
15
.
.
.
9
3
6
mA
mA
mA
32
Ω
Ω
Ω
Ω
Ω
Ω
Ω
Ω
128
289
.
6
3
4
.
Max.
75
% V of
rated coil voltage
(Initial)
Max.
75
% V of
rated coil voltage
(Initial)
14
mA
357
514
157
057
760
70
mW
150
% V of rated
coil voltage
11
.
7
.
8
.
8
.
2
mA
mA
mA
mA
7
1
2
5
,
,
,
12
V DC
24
V DC
5
4
100
mW
*Square, pulse drive
2 coil latching
Rated operating
current
(±
10
%, at
20
°C)
Max. allowable
voltage
(at
20
°C)
Rated coil
voltage
Set voltage*
(at
20
°C)
Reset voltage*
(at
20
°C)
Coil resistance
(±
10
%, at
20
°C)
Rated operating power
1
.
5
3
5
5
6
9
V DC
V DC
V DC
V DC
V DC
V DC
93
46
.
8
7
mA
mA
16
64
Ω
Ω
Ω
Ω
Ω
Ω
Ω
Ω
.
.
3
4
.
31
mA
145
178
257
579
028
880
Max.
75
% V of
rated coil voltage
(Initial)
Max.
75
% V of
rated coil voltage
(Initial)
28
23
15
11
8
.
1
.
3
.
5
.
7
.
3
mA
mA
mA
mA
mA
140
mW
200
mW
150
% V of rated
coil voltage
12
V DC
24
V DC
1
2
,
,
*Square, pulse drive
Specifications
Item
Specifications
Contact arrangement
2
Form C
Contact resistance
(initial)
Max.
75
mΩ (by voltage drop
6
V DC
1
A)
Contact material
Ag alloy / Au-clad Ag alloy
Contact data
Contact rating (resistive)
Contact input power (CW)
Max. switching voltage
Max. switching current
10
mA
10
V DC,
W (
GHz,
50
Ω,
V
.
S.W.R. Max.
30
V DC
A (DC)
Min.
100
MΩ (at
500
V DC, Measured portion is the same as the case of dielectric strength.)
750
Vrms for
min (detection current:
10
mA)
1
A
30
V DC
3
1
1
.
2
)
1
Insulation resistance (initial)
Between open contacts
1
Between contact and coil
Between contact sets
1
,
000
Vrms for
1
1
min (detection current:
10
mA)
min (detection current:
10
mA)
Dielectric
strength (initial)
1
,
000
Vrms for
Between contact and earth
terminal
1
,
000
Vrms for
1
min (detection current:
10
mA)
Max.
[Max.
4
ms at rated coil voltage (at
20
°C, without bounce)
Operate (set) time
Time
characteristics
(initial)
4
ms (at
20
°C, without bounce)]
Max.
[Max.
4
ms at rated coil voltage (at
20
°C, without bounce, without diode)
Release (reset) time
4
ms (at
20
°C, without bounce)]
Functional
Destructive
Functional
Destructive
500
m/s
2
(half-sine shock pulse:
11
ms, detection time:
10
μs)
000
m/s
2
(half-sine shock pulse:
ms)
Shock
resistance
1
,
6
10
to
55
Hz (at double amplitude of
10
to
55
Hz (at double amplitude of
3
mm, detection time:
10
μs)
mm)
Vibration
resistance
5
Expected life
Conditions
Unit weight
Mechanical life (Cold switch)
Min.
100
x
10
6
(switching frequency:
180
times/min)
Conditions for usage,
transport and storage*
Ambient temperature: –
40
to +
85
°C (-
40
to +
70
°C at our standard packing condition)
Humidity:
Approx.
5
to
85
% RH (Avoid icing and condensation)
2
g
*For ambient temperature, please read “GUIDELINES FOR RELAY USAGE”.
Expected electrical life (hot switch)
Conditions: Resistive load, switching frequency 20 times/min
Type
Load
Switching capacity
10
mA
10
V DC
Number of operations
Min.
10
x
10
6
10
3
2
Form C
Resistive load
1
A
30
V DC
Min.
100
x
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Microwave Devices RA RELAYS
REFERENCE DATA
1-1.High frequency characteristics (50 Ω)
Sample
：
ARA200A12
Measuring method
：
Measured by using our PC board for measurement and HP network analyz
e
（
r HP8753C
）
.
V
.
S.W.R.
1.5
Insertion loss
0
Isolation
0
COM-NO
COM-NC
1.4
1.3
1.2
1.1
1
0.2
0.3
0.4
20
30
40
COM-NC
COM-NO
CONTACT sets
0.6
0.8
60
80
COM-NC
0.5GHz
COM-NO
1
100
300kHz
1GHz
300kHz
0.5GHz
Frequency
1GHz
300kHz
0.5GHz
1GHz
Frequency
Frequency
1-2.High frequency characteristics (75 Ω)
Sample
：
ARA200A12
Measuring method
：
Se
e
“
Measuring method
”
unde
r
“
NOTES
”
.
V
.
S.W.R.
1.5
Insertion loss
0
Isolation
0
COM-NO
COM-NC
1.4
0.2
0.3
0.4
20
30
40
COM-NC
COM-NO
1.3
1.2
1.1
1
COM-NC
COM-NO
CONTACT sets
0.6
0.8
60
80
1
100
300kHz
0.5GHz
Frequency
1GHz
300kHz
0.5GHz
Frequency
1GHz
300kHz
0.5GHz
Frequency
1GHz
HIGH FREQUENCY CHARACTERISTICS MEASURING METHOD
50 Ω
Unit: mm
Measuring method
No.
1
Product name
HP 11857D
HP 11533A
Contents
①
②
7
mm
T
e
st port, Extension cable,
(APC connector)
7
PORT2
PORT1
Network
Analyzer
S
Parameter
B
A
R
B
A
R
2
Adapter, APC
-SMA (Male)
7
Testset
1) Connect connectors 1 and 2 respectively to PORT1 and
PORT2.
①
②
HP 8753C
RF
HP 85047A
RF
IN
OUT
Perform calibration using the 3.5 mm calibration kit.
2) After calibration, connect the D.U.T board and measure.
Surface-mount terminal
D.U.T board
10.16
Glass PTFE (Double-sided, through hole)
R-
4737
5.08
2
Material
45
°
Board thickness
t =
0
.
8
mm
Copper planting thickness
18
μm
2
20
4
SMA connector to be soldered
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Microwave Devices RA RELAYS
Connector (SMA type connector)
Correction of insertion loss
The insertion loss of relay itself is given by subtracting the
insertion loss of short-circuit the COM and the N.C. or N.O.
Product name
R
125 403
(RADIALL)
CAD
The CAD data of the products with a “CAD” mark can be downloaded from our Website.
DIMENSIONS
Unit: mm
Surface-mount terminal
50 Ω
External dimensions
Recommended PC board pattern
(TOP VIEW)
Schematic
CAD
(TOP VIEW)
Single side table
(Deenergized)
14.3
12.9
1
2.54
10
9
8
7
6
5
－
14.7
9.7
＋
2
12.4
14.9
1
2
3
4
Soldering with
Direction indication
PC board earth
（
4 ribs
）
1 coil latching
(Reset)
2.54
0.5
7.62
11.5
±
0.5
Earth
Tolerance
: ±
0.1
10
9
8
7
6
5
General tolerance
: ±
0.3
＋
－
1
2
3
4
Direction indication
2 coil latching
(Reset)
10
9
8
7
6
＋
＋
－
－
1
2
3
4
5
Direction indication
PACKING STYLE
Tube packing
Unit: mm
1) The relay is packed in a tube with the relay orientation mark
on the left side, as shown in the figure.
Orientatio
n
（
indicates PIN No.1
）
stripe
2) Ambient temperature when transporting and during storage
with the product in its our standard packaging: -40 to +70 °C
Stopp
e
（
r gray
）
Stopp
e
（
r green
）
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Microwave Devices RA RELAYS
Tape and reel packing
1)
T
a
pe dimensions
2) Dimensions of plastic reel
Relay polarity bar
1.5
＋
0.1
dia.
4
2
0
21
±
0.8 dia.
0.4
X type
2
±
0.5
12.3
16
6.4
±
0.2
RA relay
Z type
Tape coming out direction
Relay polarity bar
General tolerance
: ±
0.1
13
±
0.2 dia.
24.4
+ 2
0
2
±
0.2
3) Ambient temperature when transporting and during storage
with the product in its our standard packaging: -40 to +70 °C
EXAMPLE OF RECOMMENDED SOLDERING CONDITIONS
For cautions for use, please read “SMT Soldering Guidelines”.
Surface-mount terminal
In case of automatic soldering (reflow), the following conditions should be observed.
IRS (infrared reflow soldering method) heating conditions
Mounting cautions
Cautions to observe when mounting temperature increases
in the relay are greatly dependent on the way different parts
are located a PC board and the heating method of the reflow
device. Therefore, please conduct testing on the actual
device beforehand after making sure the parts soldered on
the relay terminals and the top of the relay case are within the
temperature conditions.
Recommend conditions
Number of reflow
1
time
Measuring position
Surface of PC board where relay is mounted.
4
t
t
t
t
t
1
2
3
4
=60s to 120s
T
3
1
=within 20s
T
2
=within 30s
T
=within 10
s
（
245 to 250
°
C
）
T
T
T
1
=150 to 180
°
C
=230
°
C and higher
=250
°
C max
2
3
1
2
3
t
t
t
Measuring position of temperature profile
Note
：
The soldering temperature profile
indicates the pad temperature. In
some cases, the ambient
Note
temperature may be greatly
increased. Check for the specific
mounting condition.
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Microwave Devices RA RELAYS
GUIDELINES FOR USAGE
For cautions for use, please read “GUIDELINES FOR MICROWAVE DEVICES USAGE” and “GUIDELINES FOR
REL
A
Y
U
SAGE”.
Cautions for usage of RA relays
Latching
External magnetic field
• We recommend latching type when using in applications
which involve lengthy duty cycles.
• Since RA relays are highly sensitive polarized relays, their
characteristics will be affected by a strong external magnetic
field. Avoid using the relay under that condition.
• Regarding the set and reset pulse time, for the purpose of
reliable operation under ambient temperature fluctuations
and different operating conditions, we recommend setting the
coil applied set and reset pulse time to 10 ms or more at the
rated coil voltage.
• The latching type relay is shipped in the reset position.
But jolts during transport or impacts during installation can
change the reset position. It is, therefore, advisable to build a
circuit in which the relay can be initialized (set and reset) just
after turning on the power.
CONDITIONS FOR USE
Conditions for operation, transport and storage conditions
During usage, storage, or transportation, avoid locations subject to direct sunlight and maintain normal temperature, humidity, and
pressure conditions.
T
e
mperature and humidity
When transporting or storing relays while they are tube
packaged, there are cases when the temperature may differ
from the allowable range. In this situation, be sure to consult
the individual specifications.
The humidity range varies with the temperature. Use within
the range indicated in the graph. (The allowable temperature
depends on the relays.)
Humidity (％ RH)
85
Allowable range
Avoid icing
Avoid con
when used at
temperatures
lower than 0
°
C
densation when
used at tem
peratures higher
than 0
°
C
5
40
0
85
Ambient temperature (℃)
Panasonic Industry Co., Ltd. Electromechanical Control Business Division
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GUIDELINES FOR MICROWAVE DEVICES USAGE
For cautions for use, please read “GUIDELINES FOR REL
A
Y
U
SAGE”.
Precautions for Coil Input
Long term current carrying
Maximum allowable voltage and temperature rise
Proper usage requires that the rated coil voltage be impressed on the
coil. Note, however, that if a voltage greater than or equal to the
maximum continuous voltage is impressed on the coil, the coil may
burn or its layers short due to the temperature rise. Furthermore, do
not exceed the usable ambient temperature range listed in the catalog.
Maximum allowable voltage for coil
A circuit that will be carrying a current continuously for long periods
without relay or microwave device switching operation. (circuits for
emergency lamps, alarm devices and error inspection that, for
example, revert only during malfunction and output warnings with form
B contacts)
Continuous, long-term current to the coil will facilitate
deterioration of coil insulation and characteristics due to heating of the
coil itself.
In addition to being a requirement for relay operation stability, the
maximum continuous impressed coil voltage is an important constraint
for the prevention of such problems as thermal deterioration or
For circuits such as these, please use a magnetic-hold type latching
relay. If you need to use a single stable relay, use a sealed type relay
that is not easily affected by ambient conditions and make a failsafe
circuit design that considers the possibility of contact failure or
disconnection.
deformity of the insulation material, or the occurrence of fire hazards.
Operate voltage change due to coil temperature rise
(Hot start)
ꢀ
ꢀ
In DC relays, after continuous passage of current in the coil, if the
current is turned OF
F
,
t
hen immediately turned ON again, due to the
temperature rise in the coil, the operate voltage will become somewhat
higher. Also, it will be the same as using it in a higher temperature
atmosphere. The resistance/temperature relationship for copper wire
is about 0.4% for 1 °C, and with this ratio the coil resistance increases.
That is, in order to operate of the relay, it is necessary that the voltage
be higher than the operate voltage and the operate voltage rises in
accordance with the increase in the resistance value. However, for
some polarized relays, this rate of change is considerably smaller.
DC Coil operating power
Steady state DC current should be applied to the coil. The wave form
should be rectangular. If it includes ripple, the ripple factor should be
less than 5%.
However, please check with the actual circuit since the electrical
characteristics may vary. The rated coil voltage should be applied to
the coil and the set/reset pulse time of latching type relay differs for
each relays, please refer to the relay’s individual specifications.
Coil connection
When connecting coils of polarized relays, please check coil polarity
(+,-) at the internal connection diagram (Schematic). If any wrong
connection is made, it may cause
unexpected malfunction, like
abnormal heat, fire and so on, and circuit do not work. Avoid
impressing voltages to the set coil and reset coil at the same time.
Ambient Environment
Dew condensation
Low temperature and low humidity
Condensation occurs when the ambient temperature drops suddenly
from a high temperature and humidity, or the relay and microwave
device is suddenly transferred from a low ambient temperature to a
high temperature and humidity. Condensation causes the failures like
insulation deterioration, wire disconnection and rust etc.
Panasonic Industry Co., Ltd. does not guarantee the failures caused
by condensation.
The plastic becomes brittle if the switch is exposed to a low
temperature, low humidity environment for long periods of time.
High temperature and high humidity
Storage for extended periods of time (including transportation periods)
at high temperature or high humidity levels or in atmospheres with
organic gases or sulfide gases may cause a sulfide film or oxide film to
form on the surfaces of the contacts and/or it may interfere with the
functions. Check out the atmosphere in which the units are to be
stored and transported.
The heat conduction by the equipment may accelerate the cooling of
device itself, and the condensation may occur.
Please conduct product evaluations in the worst condition of the actual
usage. (Special attention should be paid when high temperature
heating parts are close to the device. Also please consider the
condensation may occur inside of the device.)
Package
In terms of the packing format used, make every effort to keep the
effects of moisture, organic gases and sulfide gases to the absolute
minimum.
Icing
Condensation or other moisture may freeze on relays when the
temperature become lower than 0 °C.This icing causes the sticking of
movable portion, the operation delay and the contact conduction failure
etc. Panasonic Industry Co., Ltd. does not guarantee the failures
caused by the icing.
The heat conduction by the equipment may accelerate the cooling of
relay itself and the icing may occur. Please conduct product
evaluations in the worst condition of the actual usage.
Panasonic Industry Co., Ltd. Electromechanical Control Business Division
Panasonic Industry Co., Ltd. 2022
ASCTB403E 202204
ー 8 ー
industrial.panasonic.com/ac/e/
GUIDELINES FOR MICROWAVE DEVICES USAGE
Storage requirements
3) The following cautionary label is affixed to the anti-humidity pack.
Since the surface-mount terminal type is sensitive to humidity it is
packaged with tightly sealed anti-humidity packaging. However, when
storing, please be careful of the following.
Silicon
When a source of silicone substances (silicone rubber, silicone oil,
silicone coating materials and silicone filling materials etc.) is used
around the relay, the silicone gas (low molecular siloxane etc.) may be
produced.
1) Please use promptly once the anti-humidity pack is opened.(within
72 hours, Max. 30 °C/70% RH). If left with the pack open, the relay
will absorb moisture which will cause thermal stress when reflow
mounting and thus cause the case to expand. As a result, the seal
may break.
This silicone gas may penetrate into the inside of the relay. When the
relay is kept and used in this condition, silicone compound may adhere
to the relay contacts which may cause the contact failure. Do not use
any sources of silicone gas around the relay (Including plastic seal
types).
*For RE relays, after this bag is opened, the product must be used
within 24 hours.
2) If relays will not be used within 72 hours, please store relays in a
humidity controlled desiccator or in an anti-humidity bag to which
silica gel has been added.
NOx Generation
When relay is used in an atmosphere high in humidity to switch a load
which easily produces an arc, the NOx created by the arc and the
water absorbed from outside the relay combine to produce nitric acid.
This corrodes the internal metal parts and adversely affects operation.
Avoid use at an ambient humidity of 85%RH or higher (at 20 °C). If use
at high humidity is unavoidable, please contact our sales
representative.
*If the relay is to be soldered after it has been exposed to excessive
humidity atmosphere, cracks and leaks can occur. Be sure to mount
the relay under the required mounting conditions
*For RE relays, after this bag is opened, the product must be used
within 24 hours.
*RE Relays only
Others
Cleaning
1) Although the environmentally sealed type relay (plastic sealed type,
etc.) can be cleaned, avoid immersing the relay into cold liquid (such
as cleaning solvent) immediately after soldering. Doing so may
deteriorate the sealing performance.
2) Surface-mount terminal type relay is sealed type and it can be
cleaned by immersion. Use pure water or alcohol-based cleaning
solvent.
3) Cleaning with the boiling method is recommended (The temperature
of cleaning liquid should be 40°C or lower).
Avoid ultrasonic cleaning on relays. Use of ultrasonic cleaning may
cause breaks in the coil or slight sticking of the contacts due to the
ultrasonic energy.
Please refer to
“the latest product specifications”
when designing your product.
•Requests to customers:
Panasonic Industry Co., Ltd. Electromechanical Control Business Division
Panasonic Industry Co., Ltd. 2022
ASCTB403E 202204
ー 9 ー
industrial.panasonic.com/ac/e/
Electromechanical Control Business Division
1006, Oaza Kadoma, Kadoma-shi, Osaka 571-8506, Japan
industral.panasonic.com/ac/e/
Specifications are subject to change without notice.
2022.4
©Panasonic Industry Co., Ltd. 2022
ASCTB102E 202204
