Low Signal Relay
G5A
• Subminiature 8.40 H x 9.90 W x 16 L mm
• Unique moving-loop armature reduces relay size,
magnetic interference, and contact bounce time.
• Low nominal power consumption.
• Bifurcated crossbar contact assures reliable switching of
loads as low as 10 mVDC, 0.1 mA (reference value).
• Available in standard and ultrasonic cleaning versions.
• Highly stable magnetic circuit for latching endurance and
excellent resistance to vibration and shock.
• Single or double coil winding types available.
• RoHS Compliant.
R
C
FCC
Ordering Information
To Order: Select the part number and add the desired coil voltage rating (e.g., G5AU-234P-DC12).
■
Non-Latching
Type
Standard
Contact form
DPDT
Construction
Sealed
G5A-234P
Model
■
Latching
Type
Standard
Contact form
DPDT
Construction
Single-winding latching
Sealed
G5AU-234P
Model
Double-winding latching
G5AK-234P
Model Number Legend
G5A
1
-
2 3
4
5
-
6
DC
7
3. Contact Type
3: Bifurcated crossbar Ag (Au-Alloy)
4. Enclosure Ratings
4: Fully sealed
5. Terminals
P: Straight PCB
C: Self-clinching PCB
6. Special Function
None: General-purpose
FC:
FCC part 68 compliance
U:
For
ultrasonically
cleanable
7. Rated Coil Voltage
3, 5, 6, 9, 12, 24, 48
VDC
1. Relay Function
None: Single-side stable
U:
Single-winding latching
K:
Double-winding latching
2. Contact Form
2:
DPDT
Low Signal Relay
G5A
31
Specifications
■
Contact Data
Load
Rated load
Contact material
Carry current
Max. operating voltage
Max. operating current
Max. switching capacity
Min. permissible load (See note)
–6
Resistive load (p.f. = 1)
0.50 A at 30 VAC, 1 A at 30 VDC
Ag (Au clad)
1A
125 VAC, 125 VDC
1 A (AC) 1 A (DC)
37.50 VA, 33 W
10
μA,
10 mVDC
Inductive load (p.f. = 0.4) (L/R = 7 ms)
0.10 A at 30 VAC, 0.20 A at 30 VDC
0.50 A (AC) 0.50 A (DC)
12.50 VA 11 W
Note:
P level:
λ
60
= 0.1 x 10 /operation
This value was measured at a switching frequency of 120 operations/min and the criterion of contact resistance is 100
Ω.
This value
may vary depending on the switching frequency and operating environment. Always double-check relay suitability under actual operating
conditions.
■
Coil Data
Standard Non-latching (G5A-234P)
Rated voltage Rated current
(VDC)
(mA)
Coil
resistance
(Ω)
45
125
180
405
720
2,880
8,230
Coil inductance
(ref. value) (H)
Armature
OFF
0.048
0.13
0.17
0.43
0.71
2.76
7.44
Armature
ON
0.043
0.12
0.16
0.40
0.68
2.70
7.25
170%
Approx. 280
70% max
Pick-up
voltage
Dropout
voltage
% of rated value
10% min.
200%
Approx. 200
Maximum
voltage
Power
consumption
(mW)
3
5
6
9
12
24
48
66.7
40
33.30
22.20
16.70
8.30
5.80
Latching (G5AU-234P, G5AK-234P)
Rated voltage Rated current
(VDC)
(mA)
Coil
resistance
(Ω)
Coil inductance
(ref. value) (H)
Armature
OFF
3
5
6
9
12
24
66.70
40
33.30
22.20
16.70
8.30
45
125
180
405
720
2,880
0.02
0.06
0.08
0.17
0.29
1.10
Armature
ON
0.02
0.05
0.07
0.14
0.24
0.85
80% max.
Set pick-up
voltage
Reset
dropout
voltage
% of rated value
80% min.
200%
Approx. 200
Maximum
voltage
Power
consumption
(mW)
Note: 1.
The rated current and coil resistance are measured at a coil temperature of 23°C (73°F) with a tolerance of
±10%.
2.
The operating characteristics are measured at a coil temperature of 23°C (73°F).
3.
The maximum voltage is the highest voltage that can be imposed on the relay coil
32
Low Signal Relay
G5A
■
Characteristics
Type
Contact resistance (See note 2)
Operate (set) time
Release (reset) time
Operating frequency Mechanical
(max.)
Electrical
Insulation resistance (See note 3)
Dielectric strength
Standard
50 mΩ max.
5 ms. max. (mean value approx 2.4 ms)
5 ms. max. (mean value approx. 1.1 ms)
36,000 operations/hour
18,000 operations/hour (under rated load)
1,000 mΩ min. (at 250 VDC)
1,000 VAC, 50/60 Hz for 1 minute between coil and contacts (See note 4)
1,000 VAC, 50/60 Hz for 1 minute between contacts of different poles (See note 4)
500 VAC, 50/60 Hz for 1 minute between contacts of same pole (See note 5)
Set and reset coils
Vibration
Shock
Ambient temperature
Humidity
Service life
Mechanical
Electrical
Weight
Mechanical durability
Malfunction durability
Mechanical durability
Malfunction durability
--
100 VAC, 50/60 Hz for 1 minute
Impulse Withstand Voltage (See notes 4 & 5)
1,500 V (10 x 160
μs)
between contacts of the same polarity (conforms to FCC Part 68)
10 to 55 Hz; 1.50 mm (0.06 in) double amplitude
10 to 55 Hz; 1.50 mm (0.06 in) double amplitude
1,000 m/s
2
(approx. 100 G)
300 m/s
2
(approx. 30 G
-40 to 70°C (-40 to 158°F) with no icing
5% to 85% RH
50 million operations min.
at 36,000 operations/hour
Approx. 3 g (0.11 oz)
50 million operations min.
at 36,000 operations/hour
5 ms. max. (mean value approx. 2.0 ms)
5 ms. max. (mean value approx. 1.8 ms)
Non-latching
Latching
100,000 operations min. (at 1,800 operations/hr) See “Characteristic Data”
Note: 1.
Data shown are of initial value.
2.
The contact resistance was measured with 10 mA at 1 VDC with a voltage drop method
3.
The insulation resistance was measured with a 250-VDC megohmmeter applied to the same parts as those used for checking
the dielectric strength (except between the set and reset coil).
4.
Models with FC suffix: 1,200 VAC, 50/60 Hz for 1 min, impulse withstand voltage of 1,500 V (10 x 160
μs)
5.
Models with FC suffix: 750 VAC, 50/60 Hz for 1 min, impulse withstand voltage of 1,500 V (10 x 160
μs)
■
Characteristic Data
Maximum Switching Capacity
Electrical Service Life
10,000
Ambient Temperature vs.
Maximum Coil Voltage
Maximum coil
voltage
(%)
Service Life (x10
3
operations)
Rated operating current (A)
5,000
30-VDC inductiveload
(L/R = 7 ms)
30-VDC
resistive
load
200 mW
DC resistive
load
AC resistive
load
DC inductive
load (L/R = 7
ms)
AC inductive load
(cosf = 0.4)
1,000
500
30-VAC
resistive
load
280 mW
100
50
30-VAC inductive
load (cosf = 0.4)
Rated operating
voltage
(V)
Rated operating current (A)
Ambient temperature (°C)
Note:
The maximum coil
voltage
refers to
the maximum
value
in a
varying
range of operating power
voltage,
not a continuous
voltage.
Low Signal Relay
G5A
33
Dimensions
Note: 1.
All units are in millimeters unless otherwise inciated. To convert millimeters into inches, multiply by 0.03937.
2.
Orientation marks are indicated as follows:
G5A-234P
16 max.
(15.9)*
8.4 max. 0.64
(8.3)*
9.9 max.
(9.8)*
Terminal Arrangement/
Internal Connections
(Bottom View)
-
6
3
5
(1.2)
Mounting Holes
(Bottom View)
Tolerance:
±0.1
2.54
5.08 5.08
(1.1)
7.62
1
0.25
3.16
12
0.6
+
10
8
7
7.62
(2)
*Average value
Eight, 1-dia. holes
G5AU-234P
16 max.
(15.9)*
8.4 max.
0.64
(8.3)*
9.9 max.
(9.8)*
1
- +
S R
+ -
12
0.25
3.16
0.6
7.62
*Average value
Eight, 1-dia. holes
(2)
3
10
8
7
7.62
6
5
(1.2)
5.08 5.08 2.54
(1.1)
G5AK-234P
16 max.
(15.9)*
8.4 max. 0.64
(8.3)*
9.9 max.
(9.8)*
- 1 -
S
+ 12 +
0.25
7.62
*Average value
2
R
11
6
35
8
7
(1.2)
2.54
2.54 5.08 2.54
(1.1)
7.62
10
3.16
0.6
S: Set coil
R: Reset coil
Ten, 1-dia. holes
(2)
■
Approvals
UL Recognized (File No. E41515)/CSA Certified (File No. LR24825) - - Ambient Temp. = 40°C
Type
G5A-234P
G5AU-234P
G5AK-234P
Contact form
DPDT
Coil ratings
3 to 48 VDC
3 to 24 VDC
0.5 A, 60 VAC
0.5 A, 60 VDC
1 A, 30 VDC
Contact ratings
Note: 1.
The rated values approved by each of the safety standards (e.g., UL and CSA) may be different from the performance characteristics
individually defined in this catalog.
2.
In the interest of product improvement, specifications are subject to change.
34
Low Signal Relay
G5A
Hints on Correct Use
Single-winding type (G5AU)
Example of low-power drive circuit
1.
The figure below shows a drive circuit (JAPAN PAT.
NO.
1239293)
in which the latching relay can function like a general-purpose
relay from a normal input pulse for switching.
2.
Use a charging current of capacitor C to operate the latching
relay, which flows suddenly through diode D1, capacitor C, latch-
ing relay, and diode D2, and the relay contacts will be put in the
locked state.
3.
Use a discharging current of capacitor C to release the latching
relay, which flows through transistor TR, capacitor C, and the
latching relay.
Note: 1.
When applying the relay for practical use, make sure of the
set or reset state of the relay; then determine the circuit con-
straints.
2.
Because OMRON possesses the patent of this drive circuit,
contact OMRON when adopting it.
Precautions
Long-term Continuously ON Contacts
Using the Relay in a circuit where the Relay will be ON continuously
for long periods (without switching) can lead to unstable contacts
because the heat generated by the coil itself will affect the insulation,
causing a film to develop on the contact surfaces. We recommend
using a latching relay (magnetic-holding relay) in this kind of circuit. If
a single-side stable model must be used in this kind of circuit, we rec-
ommend using a fail-safe circuit design that provides protection
against contact failure or coil burnout.
Relay Handling
When washing the product after soldering the Relay to a PCB, use a
water-based solvent or alcohol-based solvent, and keep the solvent
temperature to less than 40°C. Do not put the Relay in a cold clean-
ing bath immediately after soldering.
Low Signal Relay
G5A
35
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