# Power Relay, SPST-NO, 12 VDC, 3 A, G5NB Series, Through Hole, Non Latching

![Product image](https://novapart.co/image/farnell:3860998/)

**URL**: https://novapart.co/products/G5NB-1A-HA%20DC12(N)(A)/power-relay-spst-no-12-vdc-3-a-g5nb-series-through
**SKU**: G5NB-1A-HA DC12(N)(A)
**Manufacturer**: OMRON ELECTRONIC COMPONENTS
**Category**: Switches & Relays || Relays || Power Relays
**Price**: €1.3100
**Stock**: 200+
**Lead Time**: 204 days (indicative)

## Specifications

| Parameter | Value |
|---|---|
| Svhc | To Be Advised |
| Coil Type | Non Latching |
| Coil Voltage | 12VDC |
| Product Range | G5NB Series |
| Relay Mounting | Through Hole |
| Coil Resistance | 720ohm |
| Contact Current | 3A |
| Relay Terminals | PC Pin |
| Contact Material | Silver Alloy |
| Contact Voltage Vac | 250V |
| Contact Voltage Vdc | 30V |
| Contact Configuration | SPST-NO |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:3860998/)

G5NB PCB Power Relay 

G 5 N B 

## **A Miniature Relay with 1-pole 3A/5A Switching Capability and 10 kV Impulse Withstand Voltage** 

- Highly efficient magnetic circuit for high sensitivity (200 mW). 

- Standard model conforms to UL/CSA/VDE standards. 

- Satisfies EN61010 reinforced insulation requirements. 

- IEC/EN 60335-1 conformed. (-HA Model) 

- IEC/EN 60079-15 conformed. (Only for G5NB-1A4, G5NB-1A4-E Model) 

- Reduced power consumption with voltage holding and pulse width modulation (PWM) control (Only for G5NB-@-PW model) 

## **RoHS Compliant** 

## ■ **Model Number Legend** 

## G5NB-@@@- @- @ -@ -@ -@ 

— — — — — — — — 1 2 3 4 5 6 7 8 

   **4. Classification** 

**1. Number of Poles 4. Classification** 1 : 1-pole None : Standard 

E : High-capacity 

**2. Contact Form** A : SPST-NO (1a) 

**5. Market Code** 

None : General purpose 

**3. Enclosure rating** None : General purpose None : Flux protection HA : Home Appliance according 4 : Sealed to IEC/EN60335-1 

**6. Coil Insulation Class(UL1446)** 

**8. Packing** 

None : Class B None : Tray Packing CF : Class F SP : Tube Packing 

**7. Special Requirement** None : Not supported PW : Supported 

## ■ **Application Examples** 

- Water heaters 

- Refrigerators 

## ■ **Ordering Information** 

## ~~Re~~ 

- Air conditioners 

• Home appliances 

• Small electric appliances 

|Terminal Shape|Terminal Shape<br>Market Code|Market Code<br>Classification|Contact form|Enclosure rating|Model|Rated coil voltage|Minimum packing unit|
|---|---|---|---|---|---|---|---|
|PCB terminals|General<br>purpose|Standard|SPST-NO (1a)|Flux protection|G5NB-1A(-SP)|5VDC<br>12VDC<br>18VDC<br>24VDC|100 pcs/Tray<br>(50 pcs/Tube)|
|||||Sealed|G5NB-1A4(-SP)|||
|||||Flux protection|G5NB-1A-CF(-SP)|5VDC<br>12VDC<br>24VDC||
||||||G5NB-1A-CF-PW(-SP)|||
||||||G5NB-1A-PW(-SP)|||
|||High-capacity|||G5NB-1A-E(-SP)|5VDC<br>12VDC<br>18VDC<br>24VDC||
|||||Sealed|G5NB-1A4-E(-SP)|||
||Home<br>Appliance|Standard||Flux protection|G5NB-1A-HA(-SP)|5VDC<br>12VDC<br>24VDC||
||||||G5NB-1A-HA-CF(-SP)|||
||||||G5NB-1A-HA-CF-PW(-SP)|||
||||||G5NB-1A-HA-PW|||
|||High-capacity|||G5NB-1A-E-HA(-SP)|12VDC<br>24VDC||



Note 1. When ordering, add the rated coil voltage to the model number. 

Example: G5NB-1A DC5 

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. 

Note 2. When ordering tape packing, add "-SP" to the model number. 

Be sure since "-SP" is not part of the relay model number, it is not marked on the relay case. 

**1** 

G5NB 

**PCB Power Relay** 

G 5 ■ **Characteristics** N B 

## ■ **Ratings** 

## ● **Coil** 

|Item|Rated current<br>(mA)|Coil resistance<br>(Ω)|Must operate voltage<br>(V)|Must release voltage<br>(V)|Max. voltage<br>(V)|Power consumption<br>(mW)|
|---|---|---|---|---|---|---|
|Rated voltage|||% of rated voltage||||
|5 VDC|40|125|75% max.|10% min.<br>10 to 31%*|Standard:<br>180% (at 23°C)<br>High-capacity:<br>170% (at 23°C)|Approx. 200<br>Approx. 32*|
|12 VDC|16.7|720|||||
|18 VDC|11.1|1,620|||||
|24 VDC|8.3|2,880|||||



Note 1. The rated current and coil resistance are measured at a coil temperature of 23°C with a tolerance of ±10%. 

Note 2. The operating characteristics are measured at a coil temperature of 23°C. 

Note 3. The “Max. voltage” is the maximum voltage that can be applied to the relay coil. 

* These numbers are only for -PW type. Power consumption with Holding Voltage is 32mW. Please confirm the detail in page 6 Coil Voltage Reduction (Holding Voltage). 

## ● **Contacts** 

|Item<br>Load|Item<br>Load|Resistive load|Resistive load|Resistive load|Resistive load|
|---|---|---|---|---|---|
|||Standard||High-capacity||
|Contact Type||Single||||
|Contact material||Ag-alloy (Cd free)||||
|Rated load||3 A at 125 VAC||5 A at 250 VAC||
|||3 A at 30 VDC||3 A at 30 VDC||
|Rated carrycurrent||3 A||5 A||
|Max. switchingvoltage||250 VAC, 30 VDC||||
|Max. switchingcurrent||3 A|||5 A|
|■**Characteristics**<br>Contact resistance *1<br>100 mΩmax.<br>Operate time<br>10 ms max.<br>Release time<br>10 ms max.<br>Insulation resistance *2<br>1,000 MΩmin.<br>Dielectric<br>strength<br>Between coil<br>and contacts<br>4,000 VAC, 50/60 Hz for 1 min<br>Between<br>contacts of the<br>samepolarity<br>750 VAC, 50/60 Hz for 1 min<br>Impulse<br>withstand<br>voltage<br>Between coil<br>and contacts<br>10 kV (1.2 x 50μs)<br>Vibration<br>resistance<br>Destruction<br>10 to 55 to 10 Hz, 0.75 mm single amplitude<br>(1.5 mm double amplitude)<br>Malfunction<br>10 to 55 to 10 Hz, 0.75 mm single amplitude<br>(1.5 mm double amplitude)<br>Shock<br>resistance<br>Destruction<br>1,000 m/s2<br>Malfunction<br>100 m/s2<br>Durability<br>Mechanical<br>5,000,000 operations min.<br>Electrical<br>(resistive load)<br>Standard (G5NB-1A, -1A4)<br>200,000 operations at 125 VAC, 3A<br>200,000 operations at 30 VDC, 3A<br>High-capacity (G5NB-1A-E, -1A4-E)<br>100,000 operations at 250 VAC, 5A<br>200,000 operations at 30 VDC, 3A<br>(with a rated load at 1,800 operations/hour)<br>Failure rate (P level)<br>(reference value)*3<br>DC5V 10mA<br>Ambient operating<br>temperature<br>-40°C to 85°C<br>(with no icingor condensation)<br>Ambient operatinghumidity<br>5% to 85%<br>Weight<br>Approx. 4g||||||
|||||||
|Contact resistance *1|||100 mΩmax.||1. **120 VAC**motor and lamp load<br>2.5A surge and 0.5A normal:<br>250,000 operations min. (at 23°C)<br>2. **160 VDC**valve load (with varistor)<br>0.24A:<br>250,000 operations min. (at 23°C)<br>3.**140 VAC**pump load<br>Inrush: 5.4 A (o-p), Steady state: 1.6 A<br>200,000 operations min. (Ambient temperature: 23°C)<br>4.**100 VAC**motor load<br>Inrush: 10.7 A (o-p), Steady state: 1.1 A<br>200,000 operations min. (Ambient temperature: 23°C)|
|Operate time|||10 ms max.|||
|Release time|||10 ms max.|||
|Insulation resistance *2|||1,000 MΩmin.|||
|Dielectric<br>strength|Between coil<br>and contacts||4,000 VAC, 50/60 Hz for 1 min|||
||Between<br>contacts of the<br>samepolarity||750 VAC, 50/60 Hz for 1 min|||
|Impulse<br>withstand<br>voltage|Between coil<br>and contacts||10 kV (1.2 x 50μs)|||
|Vibration<br>resistance|Destruction||10 to 55 to 10 Hz, 0.75 mm single amplitude<br>(1.5 mm double amplitude)|||
||Malfunction||10 to 55 to 10 Hz, 0.75 mm single amplitude<br>(1.5 mm double amplitude)|||
|Shock<br>resistance|Destruction||1,000 m/s2|||
||Malfunction||100 m/s2|||
|Durability|Mechanical||5,000,000 operations min.|||
||Electrical<br>(resistive load)||Standard (G5NB-1A, -1A4)<br>200,000 operations at 125 VAC, 3A<br>200,000 operations at 30 VDC, 3A<br>High-capacity (G5NB-1A-E, -1A4-E)<br>100,000 operations at 250 VAC, 5A<br>200,000 operations at 30 VDC, 3A<br>(with a rated load at 1,800 operations/hour)|||
|Failure rate (P level)<br>(reference value)*3|||DC5V 10mA|||
|Ambient operating<br>temperature|||-40°C to 85°C<br>(with no icingor condensation)|||
|Ambient operatinghumidity|||5% to 85%|||
|Weight|||Approx. 4g|||



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. 

**2** 

G5NB 

**PCB Power Relay** 

G 5 N B 

## ■ **Engineering Data** 

## ● **Maximum Switching Capacity Standard models** 

## **High-capacity models** 

**==> picture [421 x 552] intentionally omitted <==**

**----- Start of picture text -----**<br>
10<br>AC resistive<br>load<br>3<br>DC resistive  AC resistive  DC resistive<br>load load load<br>1<br>0.1<br>1  10  30  100  250  1,000<br>Switching voltage (V) Switching voltage (V)<br>● Durability<br>Standard models High-capacity models<br>100<br>125 VAC, 30 VDC resistive load<br>50<br>30 30VDC resistive load<br>10<br>250VAC resistive load<br>5<br>3<br>1<br>0  1  2  3  4<br>Switching current (A) Switching current (A)<br>● Ambient Temperature vs. Maximum Coil Voltage<br>Standard models High-capacity models<br>220 220<br>Test item: G5NB-1A, 24 VDC Test Item: G5NB-1A-E,24 VDC<br>Uncon- Number of Relays: 5 pcs Uncon- Number of Relays: 5 pcs<br>200 firmed  200 firmed<br>area 3A current area 5A current<br>180 180<br>160 160<br>140 140<br>120 120<br>100 100<br>80 80<br>0 20 23 40 60 8085 100 0  20 23  40  60        80 85  100<br>Ambient temperature (°C) Ambient temperature (°C)<br>Switching current (A) Switching current (A)<br>Maximum coil voltage (%) Maximum coil voltage (%)<br> operations)<br>4<br>operations)<br>4<br>Durability (10 Durability (x 10<br>**----- End of picture text -----**<br>


## ● **Durability** 

## **Standard models** 

## ● **Ambient Temperature vs. Maximum Coil Voltage Standard models** 

**Note:** The maximum coil voltage refers to the maximum value in a varying range of operating power voltage, not a continuous voltage. 

**3** 

**PCB Power Relay** 

## G5NB 

## ● **Shock malfunction Standard models** 

## **High-capacity models** 

**==> picture [491 x 168] intentionally omitted <==**

**----- Start of picture text -----**<br>
Y Y<br>1,000 Energized 1,000 Energized<br>De-energized De-energized<br>700 Test Item: G5NB-1A, 24VDC 700 Test Item: G5NB-1A-E, 24VDC<br>1,000 1,000 Number of Relays: 5 pcs 1,000 1,000 Number of Relays: 5 pcs<br>X Z' X Z'<br>Test Method: Shock is applied 3  Test Method: Shock is applied 3<br>times in 6 directions along 3 axes  times in 6 directions along 3 axes<br>and the level at which shock caused  and the level at which shock caused<br>malfunction is measured.  malfunction is measured.<br>The energized voltage is 100% of  The energized voltage is 100% of<br>the rated voltage. the rated voltage.<br>125 125<br>Rating: 100 m/s [2] Rating: 100 m/s [2]<br>Z X' Z X'<br>1,000 1,000 1,000 1,000<br>1,000 1,000<br>Y' Unit: m/s [2] Y' Unit: m/s [2]<br>Shock direction Shock direction<br>X X' X X'<br>Y Y<br>Z Z<br>Z' Z'<br>Y' Y'<br>**----- End of picture text -----**<br>


## ■ **Dimensions** 

(Unit: mm) 

G **G5NB-1A(4)(-E)(-HA)(-CF)(-PW)** 5 N B 

**==> picture [388 x 100] intentionally omitted <==**

**----- Start of picture text -----**<br>
7.2max. PCB Mounting Holes Terminal Arrangement/<br>20.5max. (7.0)* (Bottom View) Internal Connections<br>(20.4)* Tolerance: ±0.1 mm (Bottom View)<br>(1.05)<br>11.5 7 Four, 1.1 dia.<br>15.3max.<br>(15.0)* (1.15) 1 2 3<br>4.7<br>4<br>3.4<br>0.4 0.27 0.33 0.8 (No coil polarity)<br>11.5 7<br>4.7<br>**----- End of picture text -----**<br>


*Average value 

**4** 

**PCB Power Relay** 

G 5 N B 

## G5NB 

## ■ **Approved Standards** 

The approval rating values for overseas standards are different from the performance values determined individually. Confirm the values before use. 

## ● **UL Recognized:** (File No. E41515) **CSA Certified:** (File No. LR31928) 

|Model<br>|Contact form|Coil ratings|Contact ratings|Number of test<br>operations|
|---|---|---|---|---|
|G5NB-1A(4)(-HA)(-CF)(-PW)|SPST-NO<br>(1a)|5 to 24V DC|3A 250V AC (Resistive) 85°C|100,000|
||||3A 30V DC (Resistive) 70°C|6,000|
|G5NB-1A(4)-E<br>G5NB-1A-E-HA|||5A 250 V AC (Resistive) 85°C<br>5A 30 V DC (Resistive) 70°C|6,000|



## ● **EN/IEC, VDE Certified (Certificate No. 137575)** 

|Model<br>|Contact form||Coil ratings|Contact ratings|Number of test<br>operations|
|---|---|---|---|---|---|
|G5NB-1A(4)(-HA)(-CF)(-PW)|SPST-NO<br>(1a)||5, 12, 18, 24V DC|3A  250V AC (Resistive) 85°C<br>3A  30V DC (Resistive) 85°C|100,000|
|G5NB-1A(4)-E<br>G5NB-1A-E-HA||||5A 250 V AC (Resistive) 85°C<br>5A 30 V DC (Resistive) 85°C|10,000|
|||||3A 250V AC (Resistive) 85°C|100,000|
|||||||
|Creepage distance|||6.0 mm min.|||
|Clearance distance|||6.0 mm min.|||
|Insulation material group|||IIIa|||
|Type of insulation coil-contact circuit<br>open contact circuit|||Pollution degree 2 / Reinforced (Sealed)<br>Pollution degree 3 / Basic (Flux protection) / Reinforced (Sealed)|||
||||Micro disconnection|||
|Rated Insulation voltage|||250 V|||
|Pollution degree|||3|||
|Rated voltage system|||250 V|||
|Over voltage category|||III|||
|Category of protection according to IEC 61810-1|||RT II (Flux protection) / RT III (Sealed)|||
|Glow wire  according to IEC 60335-1|||<HA Models only><br>GWT 750°C min. (IEC 60695-2-11) / GWFI 850°C min. (IEC 60695-2-12)|||
|Tracking resistance  according to IEC 60112|||PTI 250 V min. (housing parts)|||
|Flammability class according to UL94|||V-0|||



**5** 

G5NB 

**PCB Power Relay** 

G * The coil resistance were measured at a coil temperature of 23°C with 5 tolerances of ± 10%. N B 

## ■ **Precautions** 

- **Please refer to “PCB Relays Common Precautions” for correct use.** 

## 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 40% 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. 

**==> picture [244 x 115] intentionally omitted <==**

**----- Start of picture text -----**<br>
100%<br>(Rated voltage)<br>40%<br>(Holding voltage)<br>100ms min.<br>Applied  Coil resistance*  Power<br>coil voltage consumption<br>Rated voltage 100% 125Ω (5 VDC) Approx. 200 mW<br>720Ω (12 VDC)<br>Holding voltage 40% 2880Ω (24 VDC) Approx. 32 mW<br>**----- End of picture text -----**<br>


## ● **Power consumption reduction of coil with pulse width modulation (PWM)** 

- Models with PWM drive capability (-PW) can reduce coil holding current with PWM control. This function reduces power consumption by reducing the current held by coil. 

- Apply the rated voltage for at least 100 ms at the time of relay operation. 

- The following are our verification conditions. When using, it be sure to check the actual machine under the actual usage conditions. 

## ■ **Example of drive circuit** ■ **Conditions of validation carried out by OMRON** 

- Applied voltage: rated voltage 

**==> picture [221 x 78] intentionally omitted <==**

**----- Start of picture text -----**<br>
Applied coil voltage (100%)<br>• Duty: 50% or more<br>• Frequency: 10 kHz or more<br>absorption Surge  Relay • Diode Vf: 0.4 V or less<br>diode Coil<br>MOS-FET<br>Pulse input<br>**----- End of picture text -----**<br>


Please check each region's Terms & Conditions by region website. 

## **OMRON Corporation** 

## **Electronic and Mechanical Components Company** 

## **Regional Contact** 

**Americas Europe** https://www.components.omron.com/ http://components.omron.eu/ **Asia-Pacific China** https://ecb.omron.com.sg/ https://www.ecb.omron.com.cn/ **Korea Japan** https://www.omron-ecb.co.kr/ https://www.omron.co.jp/ecb/ 

© OMRON Corporation 2007-2021  All Rights Reserved. In the interest of product improvement, specifications are subject to change without notice. 

**Cat. No. J143-E1-17** 

0521(0207) 

**6** 



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- [Supplier page](https://es.farnell.com/omron/g5nb-1a-ha-dc12-n-a/power-relay-spst-no-12vdc-3a-tht/dp/3860998)
---

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