# Power Relay, Miniature, SPST-NO, 12 VDC, 50 A, HF165F-50 Series, Through Hole, Non Latching

![Product image](https://novapart.co/image/farnell:4733433/)

**URL**: https://novapart.co/products/HF165F-50/12-HT/power-relay-miniature-spst-no-12-vdc-50-a-hf165f
**SKU**: HF165F-50/12-HT
**Manufacturer**: HONGFA
**Category**: Switches & Relays || Relays || Power Relays
**Price**: €1.5400
**Stock**: 100+
**Lead Time**: 148 days (indicative)

## Specifications

| Parameter | Value |
|---|---|
| Svhc | No SVHC (25-Jun-2025) |
| Coil Type | Non Latching |
| Coil Voltage | 12VDC |
| Product Range | HF165F-50 Series |
| Relay Mounting | Through Hole |
| Coil Resistance | 120ohm |
| Contact Current | 50A |
| Relay Terminals | PC Pin |
| Contact Material | Silver Tin Oxide |
| Contact Voltage Vac | 250V |
| Contact Voltage Vdc | - |
| Contact Configuration | SPST-NO |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:4733433/)

**HF165F-50** 

## **MINIATURE HIGH POWER RELAY** 

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**----- Start of picture text -----**<br>
cWkus<br>File No:E134517<br>File No:R 50463438<br>nt<br>File No:CQC18002189685<br>**----- End of picture text -----**<br>


## **CONTACT DATA** 

Contact arrangement 1A Voltage drop 1) 100mV max.(at 10A 13.5VDC) Contact material AgSnO2/AgNi Contact rating 50A 250VAC (Res. load) Max. switching voltage 250VAC Max. switching current 2) 50A Max. switching power 12500VA Mechanical endurance 1 x 10[6 ] OPS 

1x10[4] OPS(50A  250VAC, Resistive load, at 65oC, 1s on 9s off,AgNi/AgSnO2) Electrical endurance 3x10[4] OPS(40A  250VAC, Resistive load, at 85oC, 1s on 9s off,AgSnO2) 

**Notes:** 1)The data shown above are initial values. 

2)The relay connections and wiring have to be designed with an adequate cross sections to ensure the current flow and  heat dissipation. 

## **CHARACTERISTICS** 

## **Features** 

- 50A switching capability 

- 4kV dielectric strengh(between coil and contacts) 

- Contact category :CC2 

- UL insulation system : class F available 

- Products compliant with IEC 60079 available 

- Products compliant with IEC 60335 available 

## **RoHS compliant** 

## **COIL** 

Standard type ： Approx.1.2W Sensitive type ： Approx.0.9W 

Coil power 

## **COIL DATA** 

at 23 

## **Standard type** 

|1)<br>Nominal<br>Voltage<br>VDC|Pick-up<br>Voltage<br>VDC<br>max1)|Drop-out<br>Voltage<br>VDC<br>min1)|2)<br>Max.<br>Voltage<br>VDC *|Coil<br>Resistance|
|---|---|---|---|---|
|5|3.75|0.5|6.5|20.8 x (1<br>10%)|
|6|4.5|0.6|7.8|30 x (1<br>10%)|
|12|9|1.2|15.6|120 x (1<br>10%)|
|24|18|2.4|31.2|480 x (1<br>10%)|
|48|36|4.8|62.4|1920 x (1<br>10%)|



Insulation resistance 1000M ee (at 500VDC) Dielectric es Between coil & contacts 4000VAC 1min **Sensitive type** strength Between open contacts -— 1500VAC 1min Nominal VoltagePick-up Drop-outVoltage Max. Coil Surge voltage Voltage VDC VDC Voltage Resistance (between coil & contacts) 6kV (1.2/50µs) VDC 1) max[1)] min[1)] VDC *2) Operate time (at rated. volt.) 15ms max. 5 3.75 0.5 6.5 27.8 x (1 10%) Release time (at rated. volt.) 10ms max. 6 4.5 0.6 7.8 40 x (1 10%) 90K max.(Contact load Temperature rise current 50A, ratedo 12 9 1.2 15.6 160 x (1 10%) voltage excitation, at 65 C) Shock Functional 98m/s2 24 18 2.4 31.2 640 x (1 10%) resistance Destructive 980m/s2 48 36 4.8 62.4 2560 x (1 10%) ooOe SEEEE:: Vibration resistance 10Hz to 55Hz  1.5mm DA **Notes:** 1)The data shown above are initial values. Ambient temperature -40oC to 105oC 2) ***** Maximun voltage refers to the maximun voltage which relay coil could endure in a short period of time. Humidity 5% to 85% RH Termination PCB Unit weight Approx.36g Construction Flux proofed 

**Notes:** The data shown above are initial values. 

## HONGFA RELAY 

ISO9001, IATF16949 , ISO14001, ISO45001, IECQ QC 080000, ISO/IEC 27001 CERTIFIED 2026  Rev. 1.00 

386 

## **SAFETY APPROVAL RATINGS** 

|**UL/CUL**<br>**TÜV**|Standard type|Resistance load 50A 250VAC 65<br>oC (AgNi/AgSnO2)<br>Resistance load  40A 250VAC 85<br>oC (AgSnO2)<br>Resistance load  32A 250VAC 105<br>oC (AgSnO2)<br>Resistance loadMaking20ACarrying60ABreaking20A 277VAC 60<br>oC (AgSnO2)<br>Resistance load   24VDC 30A 85<br>oC (AgSnO2)<br>Resistance loadMaking50A Breaking10A 277VAC 85℃(Plastic sealed AgSnO2)|
|---|---|---|
||Sensitive type|Resistance loadMaking60A Breaking20A 400VAC 85℃(AgSnO2)|
|**CQC**|Standard type|32A 277VAC 105<br>oC (AgNi/AgSnO2)<br>50A 277VAC 65<br>oC (AgSnO2)<br>esistance loadMaking50A Breaking10A 277VAC 85℃(Plastic sealed AgSnO2)|
||Sensitive type|Resistance loadMaking60A Breaking20A 400VAC 85℃(AgSnO2)|



**Notes:** 1)  All values unspecified are at room temperature. 

- 2) Only typical loads are listed above. Other load specifications can be available upon request. 

## **ORDERING INFORMATION** 

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**----- Start of picture text -----**<br>
HF165F-50 / 12 -H L T (XXX)<br>Type<br>Coil voltage 5, 6,12, 24, 48VDC<br>Contact arrangement H:  1 Form A<br>Coil power L:  Sensitive             Nil:  Standard<br>Contact matcrial [2)] T: AgSnO2                    3: AgNi<br>Special code [3)] XXX:  Customer special requirement           Nil:  Standard          310:  Plastic sealed<br>**----- End of picture text -----**<br>


**Notes:** 1) Please avoid using the relay in an environment containing organic silicon,otherwise the entry of organic silicon into the relay may acceleration contact failure.If there are harmful substances and elements such as water vapor,H2S,SO2,NO2,Cl,P,etc.In the use of environmental gases,it may lead to increased contact resistance and poor contact during the use of relays.In the above situations,please control the materials or use plastic sealed type and arrange relevant tests to confirm.. 

- 2) When there is surge current in the load, it is recommended to use AgSnO2 contact material and confirm it in actual use. 

- 3)The customer special requirement express as special code after evaluating by Hongfa.(A21) indicates that the maximum current carrying capacity of the product is 60A,(335) stands for product in accordance to IEC 60335-1(GWT). 

- 4) Water cleaning or surface process is not suggested after the flux-proofed relays are assembled on PCB. 

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

Unit: mm 

## Outline Dimensions 

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5.5 [±] [0.4]<br>19.4 [±] [0.4] 27.4 [±] [0.4]<br>3.35 [±] [0.3]<br>0.95 [±] [0.2]<br>20.1 [±] [0.4]<br>0.7X0.7 [±] [0.2] 3.8 [±] [0.3]<br>22.4 [±] [0.4]<br>**----- End of picture text -----**<br>


387 

Unit: mm 

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

## PCB Layout (Bottom view) 

## Wiring Diagram 

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**----- Start of picture text -----**<br>
3.92 +0.08-0.03<br>1.78<br>≤ R0.5<br>≤ R0.5<br>2XØ1.1 +0.1  0<br>3.81<br>13.97<br>18.75<br>**----- End of picture text -----**<br>


**==> picture [67 x 79] intentionally omitted <==**

**Notes** : 1)  In case of no tolerance shown in outline dimension: outline dimension ≤ 1mm, tolerance should be ±0.2mm; outline dimension ＞ 1mm and ≤ 5mm, tolerance should be ±0.3mm; outline dimension ＞ 5mm, tolerance should be ±0.4mm. 2) The tolerance without indicating for PCB layout  is always ±0.1mm. 

## Disclaimer 

The specification is for reference only. See to "Terminology and Guidelines" for more information. Specifications subject to change without notice. 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. 

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