RA (ARA)
1
ds_61308_en_ra: 131213D
SPECIFICATIONS
1.0 GHz 2 Form C relay RA RELAYS
High
F
R
9.7
.382
5.9
.232
14.70
.579
mm inch
FEATURES
1. High frequency characteristics
(Impedance 50, ~1.0GHz)
• Insertion loss; Max. 0.3dB
• Isolation; Min. 20dB
(Between open contacts)
Min. 30dB
(Between contact sets)
• V.S.W.R.; Max. 1.2
2. Surface mount terminal
This relay is a surface-mounted model
with excellent high-frequency properties.
In addition, it can use a microstrip line in
the base circuit design which spares the
labor of machining the base.
3. Low profile small type
9.7(W)14.7(L)5.9(H) mm
.382(W).579(L).232(H) inch
4. High sensitivity: 140 mW nominal
operating power
5. High contact reliability
Electrical life: Min. 107 (10mA 10V DC)
TYPICAL APPLICATIONS
• Measurement instruments
Oscilloscope attenuator circuit
Contact
Characteristics
Remarks
* Specifications will vary with foreign standards certification ratings.
*1Measurement at same location as “Initial breakdown voltage” section.
*2Detection current: 10mA
Arrangement 2 Form C
Contact material Stationary AgPd + Au clad
Movable AgPd
Initial contact resistance
(By voltage 6V DC 1A) Max. 75m¾
Rating
Contact rating (resistive) 10mA 10 V DC
1A 30 V DC
Contact carrying power Max. 3W (at 1.0GHz,
impedance 50¾,
V.S.W.R. max.1.2)
Max. switching voltage 30 V DC
Max. switching current 1A
High frequency
characteristics
(~1GHz,
Impedance
50¾)
(Initial)
Isolation
Between open
contacts Min. 20dB
Between
contact sets Min. 30dB
Insertion loss Max. 0.3dB
V.S.W.R. Max. 1.2
Input power Max. 3W (at 1.0GHz,
impedance 50¾,
V.S.W.R. max.1.2)
Nominal
operating
power
Single side stable 140mW (1.5 to 12V)
200mW (24V)
300mW (48V)
1 coil latching 70 mW (1.5 to 12V)
100mW (24V)
2 coil latching 140mW (1.5 to 12V)
200mW (24V)
Expected life
(min.
operation)
Mechanical (at 180 times/
min.) 108
Electrical
(at 20
times/min.)
10mA 10 V DC
(resistive load) 107
1A 30 V DC
(resistive load) 105
Initial insulation resistance *1Min. 100 M (at 500 V DC)
Initial
breakdown
voltage *2
Between open contacts 750 Vrms for 1 min.
Between contact sets 1,000 Vrms for 1 min.
Between contact and coil 1,000 Vrms for 1 min.
Between contact and earth
terminal 1,000 Vrms for 1 min.
Operate time [Set time] *3 (at 20°C) Max. 4ms (Approx. 2ms)
[Max. 4ms (Approx. 2ms)]
Release time (without diode)
[Reset time] *3 (at 20°C) Max. 4ms (Approx. 1ms)
[Max. 4ms (Approx. 2ms)]
Temperature rise (at 20°C) *4Max. 60°C
Shock resistance Functional *5Min. 500 m/s2
Destructive *6Min. 1,000 m/s2
Vibration resistance Functional *710 to 55 Hz at double
amplitude of 3mm
Destructive 10 to 55 Hz at double
amplitude of 5mm
Conditions for operation,
transport and storage *8
(Not freezing and
condensing at low
temperature)
Ambient temp –40°C to +85°C
–40°F to +185°F
Humidity 5 to 85% R.H.
Unit weight Approx. 2g .07oz
RA (ARA)
2ds_61308_en_ra: 131213D
ORDERING INFORMATION
TYPES AND COIL DATA (at 20°C 68°F)
• Single side stable type
• 1 coil latching type
• 2 coil latching type
Part No. Nominal
voltage,
V DC
Pick-up voltage,
V DC (max.)
(initial)
Drop-out
voltage, V DC
(min.)(initial) Coil resistance,
(±10%)
Nominal
operating
current, mA
(±10%)
Nominal
operating power,
mW Max. allowable
voltage, V DC
ARA200A1H(Z) 1.5 1.125 0.15 16 93.8 140 2.25
ARA200A03(Z) 3 2.25 0.3 64.3 46.7 140 4.5
ARA200A4H(Z) 4.5 3.375 0.45 145 31 140 6.75
ARA200A05(Z) 5 3.75 0.5 178 28.1 140 7.5
ARA200A06(Z) 6 4.5 0.6 257 23.3 140 9
ARA200A09(Z) 9 6.75 0.9 579 15.5 140 13.5
ARA200A12(Z) 12 9 1.2 1,028 11.7 140 18
ARA200A24(Z) 24 18 2.4 2,880 8.3 200 36
ARA200A48(Z) 48 36 4.8 7,680 6.3 300 57.6
Part No. Nominal
voltage,
V DC
Set voltage,
V DC (max.)
(initial)
Reset voltage,
V DC (max.)
(initial) Coil resistance,
(±10%)
Nominal
operating
current, mA
(±10%)
Nominal
operating power,
mW Max. allowable
voltage, V DC
ARA210A1H(Z) 1.5 1.125 1.125 32 46.9 70 2.25
ARA210A03(Z) 3 2.25 2.25 128.6 23.3 70 4.5
ARA210A4H(Z) 4.5 3.375 3.375 289.3 15.6 70 6.75
ARA210A05(Z) 5 3.75 3.75 357 14 70 7.5
ARA210A06(Z) 6 4.5 4.5 514 11.7 70 9
ARA210A09(Z) 9 6.75 6.75 1,157 7.8 70 13.5
ARA210A12(Z) 12 9 9 2,057 5.8 70 18
ARA210A24(Z) 24 18 18 5,760 4.2 100 36
Part No. Nominal
voltage,
V DC
Set voltage,
V DC (max.)
(initial)
Reset voltage,
V DC (max.)
(initial) Coil resistance,
(±10%)
Nominal
operating
current, mA
(±10%)
Nominal
operating power,
mW Max. allowable
voltage, V DC
ARA220A1H(Z) 1.5 1.125 1.125 16 93.8 140 2.25
ARA220A03(Z) 3 2.25 2.25 64.3 46.7 140 4.5
ARA220A4H(Z) 4.5 3.375 3.375 145 31 140 6.75
ARA220A05(Z) 5 3.75 3.75 178 28.1 140 7.5
ARA220A06(Z) 6 4.5 4.5 257 23.3 140 9
ARA220A09(Z) 9 6.75 6.75 579 15.5 140 13.5
ARA220A12(Z) 12 9 9 1,028 11.7 140 18
ARA220A24(Z) 24 18 18 2,880 8.3 200 36
00A 032AEx.
Operating function
0: Single side stable
1: 1 coil latching
2: 2 coil latching
Contact arrangement
2: 2 Form C
RA
Product name
RA
Note: Packing style; Nil: Tube packing 40 pcs. in an inner package, 1,000 pcs. in an outer package
Z: Tape and reel packing 500 pcs. in an inner package, 1,000 pcs. in an outer package
0: Standard
type
(B.B.M)
A: Surface-mount
terminal
Type of operation
Terminal shape
1H: 1.5
03: 3
4H: 4.5
05: 5
06: 6
09: 9
12: 12
24: 24
48: 48
Coil voltage, V DC
Tube packing
Tape and reel packing
(picked from 1/2/3 pin side)
Tape and reel packing
(picked from 8/9/10 pin side)
Nil:
X:
Z:
Packing style
RA (ARA)
3
ds_61308_en_ra: 131213D
DIMENSIONS mm inch Download from our Web site.
CAD Data
CAD Data
CAD Data
Tolerance: 0.3 .012
Suggested Mounting Pads (Top view)
A
A (S = 20:1)
Coplanarity of
terminals & ribs
Max. 0.20 .008
9.70
.382
0.25
.010
12.90
.508
14.30
.563
Soldering with
PC board earth
(4 ribs)
14.70
.579
2.54
.100
0.50
.020
5.90
.232
7.62
.300
11.5±0.5
.453±.020
Single side stable
1 coil latching
2 coil latching
Tolerance: 0.1 .004
earth
2.54
.100
1.0
.039
2.94
.116
0.3
.012
2.00
.079
2.0
.079
for glue pad
14.0
.551
12.40
.488
14.90
.587
8.90
.350
9.56
.376 12.50
.492
earth
2.54
.100
1.0
.039
2.94
.116
0.3
.012
2.00
.079
2.0
.079
for glue pad
14.0
.551
12.40
.488
14.90
.587
8.90
.350
9.56
.376 12.50
.492
earth
1.0
.039
2.54
.100
2.94
.116
0.3
.012
2.00
.079
2.0
.079
for glue pad
14.0
.551
14.90
.587
8.90
.350
9.56
.376 12.50
.492
Schematic (Top view)
Single side stable 1 coil latching 2 coil latching
(Deenergized condition) (Reset condition) (Reset condition)
12345
678910
Direction indication 12345
678910
1
01
2345
6789
RA (ARA)
4ds_61308_en_ra: 131213D
REFERENCE DATA
1-(1). High frequency characteristics (Impedance 50)
Sample: ARA200A12
Measuring method: Measured with HP network analyzer (HP8753C).
• V.S.W.R. • Insertion loss • Isolation
1.1
1.0
1.5
1.4
1.2
1.3
300kHz 0.5GHz 1.0GHz
COM-NO
COM-NC
Frequency
V.S.W.R.
0.8
1.0
0
0.2
0.6
0.4
0.3
300kHz 0.5GHz 1.0GHz
COM-NC
COM-NO
Insertion loss, dB
Frequency
80
100
0
20
30
60
40
300kHz 0.5GHz 1.0GHz
COM-NC
COM-NO
CONTACT sets
Isolation, dB
Frequency
1-(2). High frequency characteristics (Impedance 75
Sample: ARA200A12
Measuring method: Measured with HP network analyzer (HP8753C).
• V.S.W.R. • Insertion loss • Isolation
COM-NC
COM-NO
1.0
Frequency
1.2
1.4
1.1
1.3
1.5
300kHz 0.5GHz 1.0GHz
V.S.W.R.
1.0
Frequency
0.6
0.2
0.8
0.4
0
300kHz 0.5GHz 1.0GHz
Insertion loss, dB
80
100
0
20
30
60
40
300kHz 0.5GHz 1.0GHz
COM-NC
COM-NO
CONTACT sets
Isolation, dB
Frequency
RA (ARA)
5
ds_61308_en_ra: 131213D
NOTES
For Cautions for Use, see Relay Technical Information.
1. Coil operating power
Pure 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, check it with the actual circuit
since the characteristics may be slightly
different. The nominal operating voltage
should be applied to the coil for more
than 10 ms to set/reset the latching type
relay.
2. Coil connection
When connecting coils, refer to the wiring
diagram to prevent mis-operation or
malfunction.
3. External magnetic field
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.
4. Cleaning
For automatic cleaning, the boiling
method is recommended. Avoid
ultrasonic cleaning which subjects the
relays to high frequency vibrations, which
may cause the contacts to stick.
It is recommended that alcoholic solvents
be used.
5. Soldering
Manual soldering shall be performed
under following condition.
Tip temperature: 280°C to 300°C 536°F
to 572°F.
Wattage: 30 to 60W
Soldering time: within 5s
In case of automatic soldering, the
following conditions should be observed
1) Position of measuring temperature
2) IR (infrared reflow) soldering method
Temperature rise of relay itself may vary
according to the mounting level or the
heating method of reflow equipment.
Therefore, please set the temperature of
soldering portion of relay terminal and the
top surface of the relay case not to
exceed the above mentioned soldering
condition.
It is recommended to check the
temperature rise of each portion under
actual mounting condition before use.
The soldering earth shall be performed
by manual soldering.
6. Conditions for operation, transport
and storage
1) Temperature: –40 to +85C –40 to
+185F (But allowable temperature is
from –40 to +60C –40 to +140F at our
standard packing condition.)
2) Humidity: 5 to 85% R.H. (Avoid
freezing and condensation.)
The humidity range varies with the
temperature. Use within the range
indicated in the graph below.
3) Atmospheric pressure: 86 to 106 kPa
Temperature and humidity range for
usage, transport, and storage
4) Condensation
Condensation forms when there is a
sudden change in temperature under
high temperature and high humidity
conditions. Condensation will cause
deterioration of the relay insulation.
5) Freezing
Condensation or other moisture may
freeze on the relay when the temperature
is lower than 0°C 32°F. This causes
problems such as sticking of movable
parts or operational time lags.
6) Low temperature, low humidity
environments
The plastic becomes brittle if the relay is
exposed to a low temperature, low
humidity environment for long periods of
time.
Surface of PC board where relay is mounted.
t1t2
T3
T2
T1
T1 = 150 to 180C 302 to 356F
T2 = 230C 446F and higher
T3 = Within 250C 482F
t1 = 60 to 120 sec.
t2 = Within 30 sec.
85
5
Humidity, %RH
Tolerance range
(Avoid
condensation
when used at
temperatures
higher than
0°C32°F)
(Avoid freezing
when used at
temperatures
lower than
0°C 32°F)
850–40 +185+32–40
Temperature, °C°F