# Automotive Relay, 12 VDC, 180 A, SPST-NO, Flange, Screw, HFV12 Series

![Product image](https://novapart.co/image/farnell:4733588/)

**URL**: https://novapart.co/products/HFV12/12-H-D/automotive-relay-12-vdc-180-a-spst-no-flange-screw
**SKU**: HFV12/12-H-D
**Manufacturer**: HONGFA
**Category**: Switches & Relays || Relays || Automotive Relays
**Price**: €24.9100
**Stock**: 100+
**Lead Time**: 162 days (indicative)

## Specifications

| Parameter | Value |
|---|---|
| Svhc | No SVHC (25-Jun-2025) |
| Coil Voltage | 12VDC |
| Product Range | HFV12 Series |
| Relay Mounting | Flange |
| Coil Resistance | 5ohm |
| Contact Current | 180A |
| Relay Terminals | Screw |
| Contact Material | Silver Tin Oxide |
| Contact Configuration | SPST-NO |
| Contact Voltage Dc Nom | 16V |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:4733588/)

## **HFV12** 

## **AUTOMOTIVE RELAY** 

## **Features** 

- Battery Disconnect Relay (Energy-management) 

- 2 coils latching automotive relay 

- Continuous current of 190 A at 85°C 

- Load terminal connection: screw connection (M8 bolt) 

- Coil terminal connection: 4-pin connector 

## **Typical  Applications** 

Battery disconnection in order to prevent fire caused by short circuits during an accident, Energy-management 

- (AMP 0.070 series) 

- Weight: Approx.210g 

## **CHARACTERISTICS** 

|Contact arrangement|1A|
|---|---|
|Voltage drop (initial)|Typ.: 50mV  (at 100A)<br>Max.: 250mV  (at 100A)|
|Max. continuous current1)|NO:  190A (at 70<br>, 48h)<br>°C|
|Max. switching current2)|180A|
|Max. switching voltage|16VDC|
|Min. contact load|1A 12VDC|
|Non operate voltage|2V (at 23<br>)<br>Cc|
|Limited current|1500A (0.2s,at 70<br>)<br>°C|
||1000A (1s, at 70<br>)<br>°C|
|Electrical endurance|See "CONTACT DATA"<br>°C|
|Mechanical endurance|2 x 105OPS (30OPS/min)|
|Initial insulation resistance|100M<br>(at 500VDC)<br>Q|
|Dielectric strength3)|500VAC (1min, leakage current<br>less than1mA)|
|Operate time|Typ.: 5ms (at nomi. vol.)<br>Max.: 20ms (at nomi. vol.)<br>less than1mA)|
|Release time|Typ.: 5ms (at nomi. vol.)<br>Max.: 20ms (at nomi. vol.)|



|Noise level|Typ.:  86dB|
|---|---|
|Protection class|IP54|
|Ambient temperature|-40<br>to 120<br>°C<br>°C|
|Vibration resistance4)|22HZ to 500Hz  98m/s2|
|Shock  resistance4)|392m/s2|
|Termination|QC, Screw|
|Construction|Plastic sealed|
|Unit weight|Approx.210g|



- 1) To energize an impulse for 50ms to 100ms at coil terminals so that contacts switch. 

- 2) At 23 °C , 13.5VDC, on & off rate at 1s:5s, resistive load (100 cycles). 

- 3) 1min, leakage current less than 1mA. 

- 4) When energized, opening time of NO contacts shall not exceed 100µs, when non-energized, opening time of NCcontacts shall not exceed 100µs, meantime, NO contacts shall not be closed. 

## **CONTACT DATA** 

|Load voltage|Load type<br>Contact<br>material<br>Load current<br>A<br>Electrical<br>endurance<br>OPS<br>On/Off ratio<br>On<br>s<br>Off<br>s|Load type<br>Contact<br>material<br>Load current<br>A<br>Electrical<br>endurance<br>OPS<br>On/Off ratio<br>On<br>s<br>Off<br>s|Ambient  temp.|
|---|---|---|---|
|14VDC|100<br>180<br>Inductive 0.1mH<br>Inductive 0.1mH|5 × 104<br>1.5 × 104<br>AgSnO2<br>1<br>5<br>1<br>5|See  Ambient<br>temp.  curve|
|**COIL DATA**|||at 23<br>°C|
|Nominal<br>Voltage<br>VDC|Pick-up<br>Voltage<br>VDC<br>max.<br>Ambient<br>temperature<br>~~| ~~|x(1<br>10%)<br>x(1<br>10%)<br>Drop-out<br>voltage<br>VDC1)<br>max.<br>Set Coil<br>resistance<br>(between pin2 & pin4)<br>Reset Coil<br>resistance<br>(between pin1 & pin3)<br> ~~fd~~|Max. Allowable<br>Voltage<br>VDC|
||4.3<br>-40<br>a|7.0<br>—<br>—|—|
|12|6.0<br>120<br>85<br>9.0<br>10.5<br>23<br>a<br>ee<br>a|5<br>5<br>7.0<br>7.0<br>7.0<br>—<br>—<br>—<br>—<br>ee|28<br>16<br>—|



HONGFA RELAY ISO9001, IATF16949 , ISO14001, ISO45001, IECQ QC 080000, ISO/IEC 27001 CERTIFIED 2025 Rev. 1.00 ~~CB~~ 

180 

- 1) The impulse width should be 50ms to 100 ms. Energizing voltage mode should be acted as per the diagram below: 

**==> picture [252 x 96] intentionally omitted <==**

**----- Start of picture text -----**<br>
Wiring Diagram<br>Coil terminal Function<br>- + 4 Set Coil  （+）<br>A B<br>3 Reset Coil （-）<br>2 Set Coil （-）<br>1 Reset Coil （+）<br>A Load terminal<br>+4 3- 2- 1+ B Load terminal<br>ON OFF<br>**----- End of picture text -----**<br>


- 2)  Max. allowable overdrive voltage is stated with no load applied and minimum coil resistance.  Max. allowed infiction time is 1s. 

## **ORDERING INFORMATION** 

**==> picture [459 x 141] intentionally omitted <==**

**----- Start of picture text -----**<br>
HFV12 / 12 -H -D (XXX)<br>Type<br>Coil voltage   12 : 12VDC<br>Contact arrangement H : 1 Form A<br>Instantaneous suppression D :  Diode paralleled to coil<br>Special code [1)] XXX:  Customer special requirement            Nil:  Standard<br>**----- End of picture text -----**<br>


**Notes:** 1) The customer special requirement express as special code after evaluating by Hongfa. e.g. (170) stands for flasher load.The performance parameters of products with characteristic numbers shall be subject to the specific specifications provided by Hongfa. 

## **OUTLINE DIMENSIONS, WIRING DIAGRAM AND PC BOARD LAYOUT** 

Unit: mm 

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Outline Dimensions<br>**----- End of picture text -----**<br>


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**----- Start of picture text -----**<br>
60 max 26 max<br>Sensor connector<br>4 pin 0.070 series.<br>4 3 2 1<br>Mounting Conditions<br>2-M8<br>0.35 A<br>0.2 A<br>38 min<br>18 min<br>65  0.3<br>83 min<br>**----- End of picture text -----**<br>


181 

Unit: mm 

## **OUTLINE DIMENSIONS, WIRING DIAGRAM AND PC BOARD LAYOUT** 

**==> picture [86 x 10] intentionally omitted <==**

**----- Start of picture text -----**<br>
Layout (Bottom view)<br>**----- End of picture text -----**<br>


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**----- Start of picture text -----**<br>
83 max<br>65  0.3<br>37 max<br>36 max<br>Perm.Torque:<br>13Nm max<br>A B<br>Relay schematic,part numbei,<br>batch code shall be printed<br>on this side.<br>39 max<br>**----- End of picture text -----**<br>


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**----- Start of picture text -----**<br>
Wiring Diagram<br>(Bottom view)<br>- +<br>A B<br>4 3 2 1<br>+ - - +<br>ON OFF<br>**----- End of picture text -----**<br>


Remark: 1) Relay is on the “reset” status when being released from stock, with the consideration of shock risen from transit and relay mounting, it should be changed to the “set” status when application(connecting to the power supply). Please reset the relay to “set” or “reset” status on request. 

- 2) In order to maintain the “set” or “reset” status, energized voltage to coil should reach the rated voltage, impulse width should be 50ms to 100ms . Do not energize voltage to “set” coil and “reset” coil simultaneously.  And also long energized time (more than 1 min) should be avoided. 

- 3) To avoid using relays under strong magnetic field which will change the parameters of relays such as pick-up voltage and drop-out voltage. 

182 

## **CHARACTERISTIC CURVES** 

Ambient temperature curve of the electrical endurance test 

Ambient temp. curve (one cycle) 

**==> picture [207 x 154] intentionally omitted <==**

**----- Start of picture text -----**<br>
100<br>90<br>80<br>70<br>60<br>50<br>40<br>30<br>20<br>10<br>0<br>-10<br>-20<br>-30<br>-40<br>-50<br>0 1 2 3 4 5 6 7 8 9 10 11 12<br>Time (h)<br>**----- End of picture text -----**<br>


- 1)  The minimum temperature is -40 . 2)  The maximum temperature is 85 . 

## Disclaimer 

The specification is for reference only. See to "Terminology and Guidelines" for more information. Specifications subject to change without notice. In case there is specific criterion (such as mission profile, technical specification, PPAP etc.) checked and agreed by and between customer and Hongfa, this specific criterion should be taken as standard regarding any requirement on Hongfa product. 

We could not evaluate all the performance and all the parameters for every possible application. Thus the user should be in a right position to choose the suitable product for their own application. If there is any query, please contact Hongfa for the technical service. However, it is the user’s responsibility to determine which product should be used only. 

> ©  Xiamen Hongfa Electroacoustic Co., Ltd.  All rights of Hongfa are reserved. 

183 



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- [Supplier page](https://es.farnell.com/hongfa/hfv12-12-h-d/automotive-relay-spst-no-12v-180a/dp/4733588)
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