Low Signal Relay

G5A

Low Signal Relay

G5A

· Subminiature 8.40 H x 9.90 W x 16 L mm

(0.33 H x 0.38 W x 0.63 L in).

· Unique moving magnet armature reduces relay size,

magnetic interference, and contact bounce time.

· Low nominal power consumption (200 mW).

· Bifurcated crossbar contact assures highly reliable

switching of loads as low as 10 mVDC, 0.1 mA
(reference value).

· Automatic flow or dip soldering possible.

· Available in standard, high-sensitivity, high-dielectric

(FCC part 68), low thermoelectromotive force, 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.

Ordering Information

To Order: Select the part number and add the desired coil voltage rating (e.g., G5AU-234P-DC12).

Non-Latching

Note: High-sensitivity versions of the FC type are also available.

Latching

Type

Contact form

Construction

Model

Standard

DPDT

Semi-sealed

G5A-237P

Sealed

G5A-234P

High-sensitivity

Semi-sealed

G5A-237PH

Sealed

G5A-234PH

FCC part 68

Semi-sealed

G5A-237P-FC

Sealed

G5A-234P-FC

Type

Contact form

Construction

Model

Single-winding latching

Double-winding latching

Standard

DPDT

Semi-sealed

G5AU-237P G5AK-237P

Sealed

G5AU-234P

G5AK-234P

High-sensitivity

Semi-sealed

G5AU-237PH

Sealed

G5AU-234PH

FCC part 68

Semi-sealed

G5AU-237P-FC

G5AK-237P-FC

Sealed

G5AU-234P-FC

G5AK-234P-FC

Low Signal Relay

G5A

Specifications

Contact Data

Coil Data

Standard Non-latching and FCC Part 68 Type (G5A-237P, G5A-234P, G5A-237P-FC, G5A-234P-FC)

High-sensitivity Non-latching Type (G5A-237PH, G5A-234PH)

Single-winding Latching Type. Standard and FCC Part 68 Version (G5AU-237P, G5AU-234P, G5AU-237P-FC, G5AU-234P-FC)

Load

Resistive load (p.f. = 1)

Inductive load (p.f. = 0.4) (L/R = 7 ms)

Rated load

0.50 A at 30 VAC, 1 A at 30 VDC

0.10 A at 30 VAC, 0.20 A at 30 VDC

Contact material

Ag (Au clad)

Carry current

1 A

Max. operating voltage

125 VAC, 125 VDC

Max. operating current

1 A (AC) 1 A (DC)

0.50 A (AC) 0.50 A (DC)

Max. switching capacity

37.50 VA, 33 W

12.50 VA 11 W

Min. permissible load

10 µA, 10 mVDC

Rated voltage

(VDC)

Rated current

(mA)

Coil

resistance

(

)

Coil inductance

(ref. value) (H)

Pick-up

voltage

Dropout

voltage

Maximum

voltage

Power

consumption

(mW)

Armature

OFF

Armature

% of rated value

125

0.13

0.12

70% max

10% min.

150%

Approx. 200

33.30

180

0.17

0.16

22.20

405

0.43

0.40

16.70

720

0.71

0.68

8.30

2,880

2.76

2.70

5.80

8,230

7.44

7.25

Approx. 280

Rated voltage

(VDC)

Rated current

(mA)

Coil

resistance

(

)

Coil inductance

(ref. value) (H)

Pick-up

voltage

Dropout

voltage

Maximum

voltage

Power

consumption

(mW)

Armature

OFF

Armature

% of rated value

167

0.17

0.16

80% max.

10% min.

180%

Approx. 150

240

0.22

0.21

16.70

540

0.58

0.54

12.50

960

0.96

6.50

3,700

3.90

3.80

Rated voltage

(VDC)

Rated current

(mA)

Coil

resistance

(

)

Coil inductance

(ref. value) (H)

Set pick-up

voltage

Reset

dropout

voltage

Maximum

voltage

Power

consumption

(mW)

Armature

OFF

Armature

% of rated value

66.70

0.02

80% max.

80% min.

200%

Approx. 200

125

0.06

0.05

33.30

180

0.08

0.07

22.20

405

0.17

0.14

16.70

720

0.29

0.24

8.30

2,880

1.10

0.85

Low Signal Relay

G5A

Double-winding Latching Type. Standard and FCC Part 68 Version (G5AK-237P, G5AK-234P, G5AK-237P-FC, G5AK-234P-FC)

Single-winding Latching Type. High-sensitivity Version (G5AU-237PH, G5AU-234PH)

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).

Characteristics

Note: Data shown are of initial value.

Rated voltage

(VDC)

Rated current

(mA)

Coil

resistance

(

)

Coil inductance

(ref. value) (H)

Set pick-up

voltage

Reset

dropout

voltage

Maximum

voltage

Power

consumption

(mW)

Armature

OFF

Armature

% of rated value

66.70

0.02

80% max.

200% max.

Approx. 200

125

0.06

0.05

33.30

180

0.08

0.07

22.20

405

0.17

0.14

16.70

720

0.29

0.24

8.30

2,880

1.10

0.85

Rated voltage

(VDC)

Rated current

(mA)

Coil

resistance

(

)

Coil inductance

(ref. value) (H)

Set pick-up

voltage

Reset

dropout

voltage

Maximum

voltage

Power

consumption

(mW)

Armature

OFF

Armature

% of rated value

250

80% max.

200% max.

Approx. 200

16.70

360

11.10

810

8.40

1,440

4.20

5,760

Type

Non-latching

Latching

Contact resistance

50 m

max.

Operate (set) time

5 ms. max. (mean value approx 2.4 ms)

5 ms. max. (mean value opprox. 2.0 ms)

Release (reset) time

5 ms. max. (mean value approx. 1.1 ms)

5 ms. max. (mean value approx. 1.8 ms)

Bounce time

Operate

Approx. 0.5 ms

Release

Approx. 0.5 ms

Operating
frequency

Mechanical

36,000 operations/hour

Electrical

18,000 operations/hour (under rated load)

Insulation resistance

1,000 m

min. (at 500 VDC)

1,000 m

min. (at 250 VDC)

Dielectric strength

1,000 VAC, 50/60 Hz for 1 minute between coil and contacts

1,000 VAC, 50/60 Hz for 1 minute between contacts of different poles

Standard

500 VAC, 50/60 Hz for 1 minute between contacts of same pole

750 VAC, 50/60 Hz for 1 minute between contacts of same pole

Set and reset coils

250 VAC, 50/60 Hz for 1 minute

Vibration

Mechanical durability

10 to 55 Hz; 1.50 mm (0.06 in) double amplitude

Malfunction durability Malfunction durability10 to 55 Hz; 1.50 mm (0.06 in) double amplitude

Shock

Mechanical durability

Approx. 100 G

Malfunction durability Approx. 30 G

Ambient temperature

-40 to 70

°C (-40 to 158°F)

Humidity

45% to 85% RH

Service life

Mechanical

50 million operations min.
(at 18,000 operations/hour)

1 million operations min.
(at 18,000 operations/hour)

Electrical

See "Characteristic Data"

Weight

Approx. 3 g (0.11 oz)

Low Signal Relay

G5A

Approvals

UL (File No. E41515)/CSA (File No. LR24825)

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.

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.

Type

Contact form

Coil ratings

Contact ratings

G5A-234P
G5A-234PH
G5A-234P-FC
G5A-237P
G5A-237PH
G5A-237P-FC
G5AU-237P
G5AU-237PH
G5AU-237P-FC
G5AK-237P
G5AK-237P-FC
G5AU-234P
G5AU-234PH
G5AU-234P-FC
G5AK-234P
G5AK-234P-FC

DPDT

1.5 to 48 VDC

0.5 A, 60 VAC
1 A, 30 VDC

0.5 A, 60 VAC
0.5 A, 60 VDC
1 A, 30 VDC

Document Outline

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Document Outline

ÐÐ»ÐµÐºÑ‚Ñ€Ð¾Ð½Ð½Ñ‹Ð¹ ÐºÐ¾Ð¼Ð¿Ð¾Ð½ÐµÐ½Ñ‚: G5A-234P