# Power Relay, Miniature, DPDT, 24 VDC, 8 A, HF115FK Series, Through Hole, Non Latching

![Product image](https://novapart.co/image/farnell:4733395/)

**URL**: https://novapart.co/products/HF115FK/24-2Z4T/power-relay-miniature-dpdt-24-vdc-8-a-hf115fk
**SKU**: HF115FK/24-2Z4T
**Manufacturer**: HONGFA
**Category**: Switches & Relays || Relays || Power Relays
**Price**: €1.1800
**Stock**: 1000+
**Lead Time**: 373 days (indicative)

## Specifications

| Parameter | Value |
|---|---|
| Svhc | No SVHC (25-Jun-2025) |
| Coil Type | Non Latching |
| Coil Voltage | 24VDC |
| Product Range | HF115FK Series |
| Relay Mounting | Through Hole |
| Coil Resistance | 1.44kohm |
| Contact Current | 8A |
| Relay Terminals | PC Pin |
| Contact Material | Silver Tin Oxide |
| Contact Voltage Vac | 250V |
| Contact Voltage Vdc | - |
| Contact Configuration | DPDT |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:4733395/)

## **HF115FK** 

## **MINIATURE HIGH POWER RELAY** 

## **Features** 

- Low height: 15.7 mm 

File No.:E134517 **V D E** File No.:116934 

- 16A switching capability 

- 5kV dielectric strength 

- (between coil and contacts) 

- Creepage distance: 10mm 

- Meeting reinforce insulation 

- Flux proofed type 

- Product in accordance to IEC 60335-1 available 

- UL insulation system: Class F 

- Through-Hole Reflow Version available 

File No.:CQC13002103948 

## **RoHS compliant** 

## **CONTACT DATA** 

## **COIL** 

> Contact arrangement ~~S—~S~~ 1A, 1C                      2A, 2C Contact resistance[1)] 100m Q max.(at 1A 6VDC) Contact material AgSnO2 

> Contact rating (Res. load) Cd 10A/12A/16A 250VAC      8A 250VAC Max. switching voltage 400VAC 

> Max. switching current Pd] 10A / 12A / 16A                           10A                           10A Max. switching power 2500VA/3000VA/4000VA          2000VA          2000VA Mechanical endurance 1 x 10[[7]] OPS 

Approx. 400mW(Standard type) Approx. 530mW(high power consumption type) 

Coil power 

**==> picture [443 x 180] intentionally omitted <==**

**----- Start of picture text -----**<br>
||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|Max. switching voltage|COIL DATA|at 23|
|Max. switching current|Pd]|10A / 12A / 16A                           10A                           10A|Standard type|°C|
|Max. switching power|2500VA/3000VA/4000VA          2000VA          2000VA|Nominal|Pick-up|Drop-out|Max.|Coil|
|Mechanical endurance|(NO: 16A 277VACH3(P)T type|，|Resistive Load|：|1 x 101 x 10|[5][[7]]|OPSOPS|VoltageVDC|Voltagemax.VDC|[1)]|Voltagemin.VDC|[1)]|VoltageVDC *|[2)]|Resistance|Q|
|at 40|, 1s on 9s off)|
|Z1PT(875) type|7|：|1 x 10|[5 ]|OPS|5|3.50|0.5|7.5|62 x (1|:|10%)|
|(NO:10A 250VAC|，|Resistive Load|
|at 40|Cc|，|1s on 9s off)|6|4.20|0.6|9.0|90 x (1|+|10%)|
|Z3(P)T type|：|5 x 10|[4]|OPS|
|Electrical endurance|(NO: 16A 250VACat 85|，|Cc|Resistive Load, 1s on 9s off)|9|6.30|0.9|13.5|202 x (1|+|10%)|
|(NO: 8A 250VAC2Z4(P)T type|，|Resistive Load|：|5 x 10|[4]|OPS|12|8.40|1.2|18|360 x (1|+|10%)|
|at 85|°C|, 1s on 9s off)|
|Z33 type|：|1 x 10|[5]|OPS|18|12.60|1.8|27|810 x (1|+|10%)|
|(NO: 16A 277VAC|，|Resistive Load|
|at 40|°C|, 1s on 9s off)|24|16.80|2.4|36|1440 x (1|+|10%)|
|2Z43 type|：|5 x 10|[4]|OPS|
|(NO: 8A 277VAC|，|Resistive Load|48|33.60|4.8|72|5760|x (1|15%)|
|at 40|Cc|, 1s on 9s off)|+|

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


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

## **CHARACTERISTICS** 

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|||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|High power consumption type|
|Insulation resistance|1000M|Q|(at 500VDC)|Nominal|Pick-up|Drop-out|Max.|Coil|
|Dielectric|Between coil & contacts|SY|5000VAC  1min|Voltage|VoltageVDC|VoltageVDC|Voltage|Resistance|
|Between open contacts|1000VAC  1min|VDC|max.|[1)]|min.|[1)]|VDC *|[2)]|
|strength|CS|a|
|Between contact sets|2500VAC  1min|
|Cd|5|3.50|0.5|7.5|47 x (1|:|10%)|
|Surge voltage (between coil & contacts)|10kV (1.2 x 50µs)|
|Operate time (at rated. volt.)|10ms max.|6|4.20|0.6|9.0|68 x (1|+|10%)|
|Release time (at rated. volt.)|5ms max.|
|Functiona|98m/s2|9|6.30|0.9|13.5|153 x (1|10%)|
|Shock resistance *|CS|Destructive|980m/s2|12|8.40|1.2|18|271 x (1|=|10%)|
|Fd|-|
|Vibration resistance *|10Hz to 150Hz 10g/5g|
|18|12.60|1.8|27|611 x (1|+|10%)|
|Humidity|5% to 85% RH|
|Ambient temperature|-40|°C|to 85|°C|24|16.80|2.4|36|1086 x (1|+|10%)|
|Termination|PCB|
|48|33.60|4.8|72|4347|x (1|+|15%)|
|Unit weight|Approx. 13g|
|Notes:|1) The data shown above are initial values.|
|Construction|Flux proofed|*|
|2)|Maximum voltage refers to the maximum voltage which relay|
|Notes:|1) The data shown above are initial values.|coil could endure in a short period of time.|

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


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

2) * Index is not in relay length direction. 

HONGFA RELAY 

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

263 

## **SAFETY APPROVAL RATINGS** 

**Standard type** 

**High power consumption type** 

|**UL/CUL**|AgSnO2|Z1T：12A  250VAC at 85<br>Z2T：12A  250VAC at 85<br>Z3T：16A  250VAC at 85<br>2Z4T：8A  250VAC at 85||**UL/CUL**|Z1PT：12A  277VAC 85<br>16A  277VACroom temperature<br>TV8  NOroom temperature<br>Z2PT：12A  277VAC 85<br>6A  277VACroom temperature<br>TV8  NOroom temperature<br>Z3PT：16A  277VAC 85<br>TV8  NOroom temperature<br>2Z4PT：8A  250VAC 85|
|---|---|---|---|---|---|
||AgNi|Z13：12A  250VAC at 40<br>Z23：12A  250VAC at 40<br>Z33：16A  250VAC at 40<br>2Z43：8A  250VAC at 40||||
|**VDE**|AgSnO2|Z1T：12A  250VAC at 85<br>Z2T：12A  250VAC at 85<br>Z3T：16A  250VAC at 85<br>2Z4T：8A  250VAC at 85||||
|||||**VDE**|Z1PT：12A  277VAC 85<br>Z2PT：12A  277VAC 85<br>Z3PT：16A  277VAC 85<br>2Z4PT：8A  250VAC 85|
||AgNi|Z13：12A  250VAC at 85<br>Z23：12A  250VAC at 85<br>Z33：16A  250VAC at 85<br>2Z43：8A  250VAC at 85||||
|||||||



**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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HF115FK / 12 -H S 3 P T (XXX)<br>Type<br>Coil voltage 5, 6, 9, 12, 18, 24, 48 VDC<br>H:  1 Form A           Z:  1 Form C<br>Contact arrangement 2H:  2 Form A       2Z:  2 Form C<br>Construction S:  Plastic sealed        Nil:  Flux proofed<br>1:  3.5mm 1 pole 12A            2:  5.0mm 1 pole 12A<br>Version<br>3:  5.0mm 1 pole 16A            4:  5.0mm  2 pole 8A<br>Coil type P: high power consumption type     Nil:  Standard<br>Contact material  [1) 2)] T:  AgSnO2 3:  AgNi (Standard)<br>XXX:  Customer special requirement      Nil:  Standard<br>Special code [3)] (875):  1 pole 10A(Only 1 version high power consumption type)<br>(170):  Meeting TV-8(Only 1 pole high power consumption type)<br>**----- End of picture text -----**<br>


**Notes:** 1) We recommend flux proofed types for a clean environment (free from contaminations like H2S, SO2, NO2, dust, etc.). 

- 2) Contact is recommended for suitable condition and specifications if water cleaning or surface process is involved in assembling relays on PCB. 

- 3) The customer special requirement express as special code after evaluating by Hongfa. e.g.(335) stands for product in accordance to IEC 60335-1 (GWT) . (253) means Through-Hole Reflow Version(valid for Flux proofed only). 

- 4) Two packing methods available: plastic tray package, tube package,Standard tube packing length is 616mm. Any special requirement needed, please contact us for more details. 

- 5) For the products that need to meet the explosion-proof requirements of "IEC 60079 series", please note [Ex] after the model and specification when placing the order for the plastic type specification, and note [Exd] after the model and specification when placing the order for the non-plastic type specification. Our company will print the "Ex" or "Exd" logo on the product shell to distinguish them. Because not all products of the specification have explosion-proof certification, please contact us if necessary to determine the appropriate product. 

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

Unit: mm 

## Outline Dimensions 

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3.5mm Pinning (HF115FK/  □□□ -1- □  ) 5mm Pinning (HF115FK/  □□□  - □  -2/3/4-<br>12.7  0.3 12.7  0.3<br>0.5x0.5 0.5x0.8(3 terminals) 0.5x0.5 0.5x0.8(2 terminals)<br>**----- End of picture text -----**<br>


5mm Pinning (HF115FK/ □□□ - □ -2/3/4- □ ) 

264 

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

Unit: mm 

## Wiring Diagram 

(Bottom view) 

3.5/5mm Pinning, 1 Pole, 12A/16A, HF115FK/ □□□ -1/2- □ 

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1 Form A<br>**----- End of picture text -----**<br>


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1 Form C<br>**----- End of picture text -----**<br>


5mm Pinning, 1 Pole, 16A, HF115FK/ □□□ -3- □ 

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1 Form A<br>**----- End of picture text -----**<br>


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1 Form C<br>**----- End of picture text -----**<br>


- 5mm Pinning,  2 Pole, 8A, HF115FK/ □□□ -2 □ -4- □ 

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2 Form A<br>**----- End of picture text -----**<br>


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2 Form C<br>**----- End of picture text -----**<br>


PCB Layout(Bottom view) 

- 3.5mm Pinning, 1 Pole, 12A, HF115FK/ □□ - □ - □ -1- □□ 

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3.5 3.5<br>2.6 2.6 3.5<br>8xØ1.3 +0.1  0 20.16 8xØ1.3 +0.1  0 20.16<br>1 Form A 1 Form C<br>**----- End of picture text -----**<br>


5mm Pinning, 1 Pole, 12A, HF115FK/ □□ - □ - □ -2- □□ 

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5.04<br>2.6<br>4xØ1.3 +0.1  0 20.16<br>1 Form A<br>**----- End of picture text -----**<br>


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5.04<br>2.6 5.04<br>5xØ1.3 +0.1  0 20.16<br>1 Form C<br>**----- End of picture text -----**<br>


5mm Pinning, 1 Pole, 16A, HF115FK/ □□ - □ - □ -3- □□ 

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2.6 5.04<br>6xØ1.3 +0.1  0 20.16<br>1 Form A<br>**----- End of picture text -----**<br>


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5.04<br>2.6 5.04<br>8xØ1.3 +0.1  0 20.16<br>1 Form C<br>**----- End of picture text -----**<br>


265 

Unit: mm 

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

## 5mm Pinning, 2 Pole, 8A, HF115FK/ □□ -2 □ - □ -4- □□ 

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5.04<br>2.6 5.04 2.6 5.04<br>© Pia ty yy Pr © Ree eeeenenil<br>x Pedy TT TT Ty yt ty x Pedy TT Pt ye yy ty<br>pig it tt gt du pa ee eH<br>6xØ1.3 +0.1  0 20.16 8xØ1.3 +0.1  0 20.16<br>**----- End of picture text -----**<br>


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2 Form A<br>**----- End of picture text -----**<br>


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2 Form C<br>**----- End of picture text -----**<br>


Remark: 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. 

3)  The width of the gridding is 2.52mm. 

## **CHARACTERISTIC  CURVES** 

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**----- Start of picture text -----**<br>
MAXIMUM SWITCHING POWER COIL OPERATING RANGE (DC) *<br>So SSeS oOa= 1050 oeeS===--= a a = AC >i5D>yp 3.63.43.0 aa~—}—_{a |esa<br>oO6 5 NN— eeeBRS iyD 2.6 poaee_ | {||<br>ivi EAI Se tN] 5 a ee ee |<br>5 PTW TP ty NTT > 2.2 aT —e—<br>8 1 a - DC  JAA a | 4H 2& 1.8 a eea  eeee IS 0  A8  A<br>0.5 _— —— Seee ee 1.4 a Recommendedvoltage ~ 16 A<br>es== 1.0 eers ee | ee [||<br>es es a a a a  D ee<br>0.1 10 L TTT 20 30 40 50 100 200 ft Ty 300 400 500 0.6 0 es +20 +40 ee +60 +80 ee +85 +100<br>Contact Voltage (V)  Ambient Temperature (85 ‘C )<br>**----- End of picture text -----**<br>


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**----- Start of picture text -----**<br>
Notes:  *  The use of a relay with an energising voltage<br>              other than the rated coil voltage may lead to<br>              reduced electrical life.<br>**----- End of picture text -----**<br>


An energising voltage over the abver range may damage the insulation of relay coil. 

**==> picture [150 x 195] intentionally omitted <==**

**----- Start of picture text -----**<br>
ENDURANCE CURVE<br>—-(o)a 1000 foa a ee |<br>S po<br>Ss 100 a a<br>x< ee a<br>AA —- — — — — —F<br>26 Ia N<br>10<br>B<br>[o)g _— _ TTaeSesaS S Osa A Ss | nN ss Jee ee aNSee | a Sa| C<br>1<br>0 2 4 6 8 10 12 14 16<br>Contact Current (A)<br>Notes:<br>1) Curve A: 2Z4T type<br>Curve B: Z2T type (or Z2T type)<br>Curve C: Z3T type<br>2) Test conditions:<br>NO, resistive load, 250VAC, flux proofed,<br>at 85 °C , 1s on 9s off .<br>**----- End of picture text -----**<br>


## ENDURANCE CURVE 

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**----- Start of picture text -----**<br>
[e)a 1000 SS ee eee<br>| CR C Q<br>=)S  a | a<br>x 100 |<br>Q _————<br>gS5 PYSD [N] [A]<br>10 250VAC COS   =0.4<br>[e)8 _—_— NNES a,aa 24VDC L/R=7ms NSa S| |——a eea| ee ||<br>1<br>0 2 4 6 8 10 12 14 16<br>Contact Current (A)<br>Notes:<br>1) Curve : H3T type<br>2) Test conditions:<br>NO, at 85 °c , 1s on 9s off, flux proofed .<br>**----- End of picture text -----**<br>


## 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. 

266 



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