Product Details Portlet

G5PZ PCB Power Relay

Compact 20 A Power Relay

  • 10.5 mm (W) slim size and 1 pole 16 A/20 A switching capability
  • High sensitivity of 530 mW coil consumption and further saving energy with holding voltage 50%
  • Min. 6.4 mm of insulation distance and 10 kV impulse withstand voltage
    (between coil and contacts)
  • IEC60664-1 Reinforced insulation conformed
RoHS Compliant
Model 2D/3D CAD ECAD(Download symbol,FootPrint,3DCAD)
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G5PZ-1A Download Download
G5PZ-1A-E Download Download
(*) Ultra Librarian uniquely created ECAD data based on the information provided by OMRON. Please note that OMRON does not guarantee the accuracy, concurrence or completeness of ECAD data.
Note: This web page provides an excerpt from a datasheet. Refer to Product Datasheet and other applicable documents for more information.
Classification Contact form Enclosure rating Model Rated coil voltage Minimum packing unit
Standard SPST-NO (1a) Flux protection G5PZ-1A 5 VDC
12 VDC
24 VDC
100 pcs. / Tray
High-capacity G5PZ-1A-E
Note 1. When ordering, add the rated coil voltage to the model number.
Example: G5PZ-1A DC12:Rated coil voltage
  However, the notation of the coil voltage on the product case as well as on the packing will be marked as VDC.

Rated voltage
Rated current (mA) Coil resistance (Ω) Must-operate voltage (V) Must-release voltage (V) Max. voltage (V) Power consumption (mW)
% of rated voltage
5 VDC 106 47 75% max. 10% min. 140%
(at 23°C)
Approx. 530
12 VDC 44.1 272
24 VDC 22.1 1087
Note: 1. The rated current and coil resistance are measured at a coil temperature of 23°C with a tolerance of ±10%.
  2. The operating characteristics are measured at a coil temperature of 23°C.
  3. The “Max. voltage” is the maximum voltage that can be applied to the relay coil.

Standard High-capacity
Resistive load
Contact type Single
Contact material Ag-alloy (Cd free)
Rated load 16 A at 250 VAC 20 A at 250 VAC
Rated carry current 16 A 20 A
Max. switching voltage 250 VAC
Max. switching current 16 A 20 A

Actual Load Life (Reference Values)
1. 250 VAC Inverter load (Standard) Inrush: 240 A (0-P, Rise Time 3 ms or more), Current 16 A, Cut off current 0 A
50,000 operations min. (at 23°C)
2. 250 VAC Inverter load (High-capacity) Inrush: 240 A (0-P, Rise Time 3 ms or more), Current 20 A, Cut off current 0 A
50,000 operations min. (at 23°C)

Standard High-capacity
Contact resistance *1 100 mΩ max.
Operate time 15 ms max.
Release time 5 ms max.
Insulation resistance *2 1,000 MΩ min.
Dielectric strength Between coil and contacts 4,000 VAC 50/60 Hz 1 min
Between contacts of the same polarity 1,000 VAC 50/60 Hz 1 min
Impulse withstand voltage Between coil and contacts 10 kV (1.2 x 50 μs)
Vibration resistance Destruction 10 to 55 to 10 Hz, 0.75 mm single amplitude
(1.5 mm double amplitude)
Malfunction 10 to 55 to 10 Hz, 0.75 mm single amplitude
(1.5 mm double amplitude)
Shock resistance Destruction 1,000 m/s2
Malfunction 200 m/s2
Durability Mechanical 2,000,000 operations min.
(resistive load)
100,000 operations at 250 VAC, 16 A 50,000 operations at 250 VAC, 20 A
Failure rate (P level)
(reference value) *3
5 VDC 100 mA
Ambient operating
-40 to 70°C
(with no icing or condensation)
Ambient operating humidity 5 to 85%
Weight Approx. 10.5 g
Note:   Values in the above table are the initial values at 23°C.
  1. Measurement conditions: 5 VDC, 1 A, voltage drop method
  2. Measurement conditions: Measured at the same points as the dielectric strength using a 500 VDC ohmmeter.
  3. This value was measured at a switching frequency of 120 operations/min.
(Unit: mm)
PCB Mounting Holes
Tolerance: ±0.1 mm

Terminal Arrangement/
Internal Connections

(Bottom View)
(No coil polarity)

Correct Use

●Coil Voltage Reduction (Holding Voltage) after Relay Operation

  • If the coil voltage is reduced to the holding voltage after Relay operation, first apply the rated voltage to the coil for at least 100 ms, as shown below.
  • A voltage of at least 50% of the rated voltage is required for the coil holding voltage. Do not allow voltage fluctuations to cause the coil holding voltage to fall below this level.


coil voltage
Coil resistance* Power
Rated voltage 100% 475 Ω (5 VDC)
272 Ω (12 VDC)
1087 Ω (24 VDC)
Approx. 530 mW
Holding voltage 50% Approx. 133 mW
* The coil resistance were measured at a coil temperature of 23°C with tolerances of ± 10%.