# Power Line Filter, General Purpose, 1 Stage, 25 A, 36 V, Terminal Block, Chassis Mount

![Product image](https://novapart.co/image/farnell:3594589/)

**URL**: https://novapart.co/products/VFM-25C/power-line-filter-general-purpose-1-stage-25-a-36
**SKU**: VFM-25C
**Manufacturer**: CUI
**Price**: €38.3400
**Stock**: 50+
**Lead Time**: 99 days (indicative)

## Specifications

| Parameter | Value |
|---|---|
| Svhc | Lead (21-Jan-2025) |
| No. Of Phases | - |
| No. Of Stages | 1 Stage |
| Product Range | VFM-XX Series |
| Current Rating | 25A |
| Voltage Rating | 36VDC |
| Filter Mounting | Chassis Mount |
| Filter Applications | General Purpose |
| Filter Input Terminals | Terminal Block |
| Filter Output Terminals | Terminal Block |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:3594589/)

Additional Resources:    Product Page 

**date** 01/2017 **page** 1 of 7 

## **SERIES: VFM-XX** 

## **DESCRIPTION    DC EMI FILTER** : 

## **FEATURES** 

- **•compact size** 

- **•suitable for use with a wide range of dc-dc converters** 

- **•reduces common and differential mode noise** 

## RoHS 

|RoHS|||||
|---|---|---|---|---|
|**MODEL**|**input voltage**|**input surge voltage1**|**input current**|**isolation voltage2**|
||**range**|**nominal**|**max.**|**min.**|
||**(Vdc)**|**(Vdc)**|**(A)**|**(Vdc)**|
|VFM-10A|0 ~ 75|100|10|1,500|
|VFM-15C|0 ~ 75|100|15|1,500|
|VFM-20A|0 ~ 75|100|20|1,500|
|VFM-25C|0 ~ 36|50|25|1,500|



## **MODEL** 

- **1) for 100 ms** 

**2) input to ground, output to ground** 

## **GENERAL** 

|**GENERAL**|||||||
|---|---|---|---|---|---|---|
|**parameter**|**conditions/description**||**min**|**nom**|**max**|**units**|
|dimensions|VFM-10A:|2.00x1.00x0.46 inch|||||
|||50.8x25.4x11.7 mm|||||
||VFM-15C:|4.06x3.11x0.89 inch|||||
|||103.2x79x22.7 mm|||||
||VFM-20A:|2.00x1.60x0.50 inch|||||
|||50.8x40.6x12.7 mm|||||
||VFM-25C:|4.06x3.11x0.89 inch|||||
|||103.2x79x22.7 mm|||||
|case material|VFM-10A/20A: black plastic||||||
||VFM-15C/25C: black coated steel||||||
|isolation voltage|input to ground, output to ground|input to ground, output to ground|1,500|||Vdc|
|isolation resistance|input to ground, output to ground|input to ground, output to ground|107|||W|
|dc resistance|total for two legs|||16||mW|



## **ENVIRONMENTAL** 

|**parameter**|**conditions/description**|**min**|**nom**|**max**|**units**|
|---|---|---|---|---|---|
|cooling|natural convection|||||
|operating temperature||-40||100|°C|
|case temperature||||100|°C|
|storage temperature||-40||100|°C|



20050 SW 112[th] Ave. Tualatin, Oregon 97062 phone 503.612.2300 fax 503.612.2383   www.cui.com 

Additional Resources:    Product Page 

**date** 01/2017 **page** 2 of 7 

**==> picture [131 x 32] intentionally omitted <==**

## **SERIES: VFM-XX DESCRIPTION    DC EMI FILTER** : 

## **DRAWING (VFM-10A)** 

**==> picture [346 x 145] intentionally omitted <==**

**----- Start of picture text -----**<br>
2.00 [50.8]<br>0.475 [12.06] NOTE:Pin Size is ø0.04 inch (ø1.02 mm)<br>All Dimensions in inches (mm)<br>0.15 [3.8] 1.225 [31.12] Tolerances: Inches: X.XX= ±0.02, X.XXX= ±0.010<br>0.12 [3.2] Millimeters: X.X= ±0.5 , X.XX=±0.25<br>2 5 4<br>0.750 [19.05]<br>1 BOTTOM VIEW 3 1.00 [25.4] PIN CONNECTION<br>Pin Function<br>0.040 [1.02] 1 +V Input<br>2 -V Input<br>0.22 [5.6] min. 3 +V Output<br>4 -V Output<br>SIDE VIEW 0.46 [11.7] 5 GND<br>**----- End of picture text -----**<br>


## **DRAWING (VFM-20A)** 

**==> picture [189 x 163] intentionally omitted <==**

**----- Start of picture text -----**<br>
2.00 [50.8]<br>0.700 [17.78] 0.15 [3.8]<br>0.15 [3.8] 1.000 [25.40]<br>4<br>3 9 8<br>7<br>2<br>6<br>1<br>5<br>BOTTOM VIEW<br>0.040 [1.02]<br>0.22 [5.6] min.<br>SIDE VIEW 0.50 [12.7]<br>1.60 [40.6] 0.150 [3.81] 0.25 [6.3]<br>0.200 [5.08]<br>0.200 [5.08]<br>0.200 [5.08]<br>0.200 [5.08] 0.200 [5.08]<br>0.200 [5.08]<br>**----- End of picture text -----**<br>


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**----- Start of picture text -----**<br>
DIMENSIONS:<br>NOTE:Pin Size is ø0.04 inch (ø1.02 mm)<br>All Dimensions in inches (mm)<br>Tolerances  Inches: X.XX= ±0.02 , X.XXX= ±0.010<br>Millimeters: X.X= ±0.5 , X.XX=±0.25<br>PIN CONNECTION<br>Pin Function<br>1,2 +V Input<br>3,4 -V Input<br>5,6 +V Output<br>7,8 -V Output<br>9 GND<br>**----- End of picture text -----**<br>


20050 SW 112[th] Ave. Tualatin, Oregon 97062 phone 503.612.2300 fax 503.612.2383   www.cui.com 

Additional Resources:    Product Page 

**date** 01/2017 **page** 3 of 7 

**==> picture [131 x 32] intentionally omitted <==**

## **SERIES: VFM-XX** 

## **DESCRIPTION    DC EMI FILTER** : 

## **DRAWING (VFM-15C/25C)** 

**==> picture [542 x 351] intentionally omitted <==**

**----- Start of picture text -----**<br>
          POWER 2.92 [74.2]      CONVERTER<br>     +Vin   -Vin   GND        -Vin         +Vin<br>3.70 [94.2] 2.16 [55.0]<br>3.15 [80.0]<br>4-R0.088 [R<br>2.25]<br>.0] .0]<br>71 79<br>.0]<br>12<br>2.79 [ 3.11 [<br>4-0.47 [<br>]<br>.0]<br>22.7 1<br>0.89 [ 0.03 [<br>]38.5<br>1.51 [<br>**----- End of picture text -----**<br>


20050 SW 112[th] Ave. Tualatin, Oregon 97062 phone 503.612.2300 fax 503.612.2383   www.cui.com 

Additional Resources:    Product Page 

**date** 01/2017 **page** 4 of 7 

## **SERIES: VFM-XX DESCRIPTION    DC EMI FILTER** : 

## **VFM-10A INTERNAL SCHEMATIC** 

## **VFM-20A INTERNAL SCHEMATIC** 

## **VFM-15C/25C INTERNAL SCHEMATIC** 

20050 SW 112[th] Ave. Tualatin, Oregon 97062 phone 503.612.2300 fax 503.612.2383   www.cui.com 

Additional Resources:    Product Page 

**date** 01/2017 **page** 5 of 7 

## **SERIES: VFM-XX DESCRIPTION   DC EMI FILTER** : 

## INSERTION LOSS **INSERTION LOSS** (VFM-10A **(VFM-10A** ) **)** 

## **COMMON MODE** 

## **DIFFERENTIAL MODE** 

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


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


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**----- Start of picture text -----**<br>
50<br>-60 >ann<br>-10 N\ a<br>-80 \J<br>-90<br>100 1000 KHz<br>dB<br>**----- End of picture text -----**<br>


## **INSERTION LOSS (VFM-15C)** 

## **COMMON MODE** 

## **DIFFERENTIAL MODE** 

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


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


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


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


## **INSERTION LOSS (VFM-20A)** 

## **COMMON MODE** 

## **DIFFERENTIAL MODE** 

**==> picture [508 x 114] intentionally omitted <==**

**----- Start of picture text -----**<br>
0 H 0<br>-10 LT LTTE SE ETE ET -10 LT TT<br>-20 a a el -20 ee<br>-30 | oT TP PP PTET -30 LT ETE<br>-40 Gain -40 Gain<br>LT ETE ee TTE a ET TTT ET[- _]<br>-50 -50<br>-60 SHS -60<br>-70 LT HE C -70 i<br>-80 LT ETE ET -80 ee<br>-90 Lt ETELETTE EETET)ET -90 LLeeETT EEE<br>100 1000 10000 100000 ' 100 1000 10000 100000<br>KHz H KHz<br>dB dB<br>**----- End of picture text -----**<br>


20050 SW 112[th] Ave. Tualatin, Oregon 97062 phone 503.612.2300 fax 503.612.2383   www.cui.com 

Additional Resources:    Product Page 

**date** 01/2017 **page** 6 of 7 

**==> picture [131 x 32] intentionally omitted <==**

## **SERIES: VFM-XX DESCRIPTION    DC EMI FILTER** : 

## **INSERTION LOSS (VFM-25C)** 

## **COMMON MODE** 

## **DIFFERENTIAL MODE** 

**==> picture [535 x 145] intentionally omitted <==**

**----- Start of picture text -----**<br>
0 0<br>-10<br>-5<br>-20<br>-10 -30<br>-40<br>-15 Gain -50 Gain<br>-20 -60<br>-70<br>-25 -80<br>-30 -90<br>-100<br>-35 -110<br>100 1000 10000 100000 100 1000 10000 100000<br>KHz KHz<br>dB dB<br>**----- End of picture text -----**<br>


## **APPLICATION NOTES** 

**The following application note shows EN55022 class B conducted emissions tests for the VFM-XX series EMI filters in series with a VHK or VHB series DC/DC converter and a purely resistive load. This information is for example only.  Actual results may vary.** 

**1) EMI Filtering - Connection Diagram** 

|**Filter Model**<br>**(VFM-XX)**|**DC-DC Converter**<br>**Model (VHXXXW)**|**C1**|**C1**|**C1**|**C1**|**C2**|**C2**|**C2**|**C2**|**C2**|**CY1**|**CY1**|**CY2**|**CY3**|**CY4**|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|**VFM-10A**|VHB50W-Q24-S5|47 µF/100 V KY||||•••|||||•••||•••|•••|•••|
||VHB50W-Q48-S5|47 µF/100 V KY||||•••|||||•••||•••|•••|•••|
|**VFM-15C**|VHK200W|•••||||•••|||||•••||•••|•••|•••|
|**VFM-20A**|VHB150W-Q24-S5|47 µF/100 V KY||||220 µF/100 V KY|||||1000 pF / 2 KV||•••|1000 pF / 2<br>KV|560 pF/2 KV|
||VHB150W-Q48-S5|••||•||220 µF/100 V KY|||||1000 pF / 2 KV||•••|1000 pF / 2<br>KV|560 pF/2 KV|
|**VFM-25C**|VHK200W|••||•||||•••|||•••||•••|•••|•••|
||CY4<br>DC-D<br>POW<br>SUPP|||||||||CY2<br>CY1<br>SPECTRUM<br>ANALYZER||||||
||||DC-D<br>POW<br>SUPP|C<br>ER<br>LY||LIS||N||||SPECTRUM<br>ANALYZER||||
|||||||||||||||||
|||||||||||||||||
||||CY4||LO<br>VHBX<br>3<br>VFM|||C1||CY2<br>CY1||||||
|||||||||||||||||
|||||||VFM||-XX<br>|GND|||||||
|||||||||C2||||||||
|||||CY||||||||||||
|||||||VHBX||XW||||||||
|||||||||||||||||
|||||||||||||||||
|||||||LO||AD||||||||



20050 SW 112[th] Ave. Tualatin, Oregon 97062 phone 503.612.2300 fax 503.612.2383   www.cui.com 

Additional Resources:    Product Page 

**date** 01/2017 **page** 7 of 7 

## **SERIES: VFM-XX** 

## **DESCRIPTION    DC EMI FILTER** : 

## **2) Conducted Emission Measurement** 

## **Filter Model: VFM-10A** 

**DC-DC Converter Model: VHB50W-Q24-S5 Input Voltage: 12 Vdc** 

**Filter Model: VFM-15C DC-DC Converter Model: VHK200W-Q48-S12** In **put Voltage: 48 Vdc** 

**Filter Model: VFM-20A DC-DC Converter Model: VHB150W-Q24-S5 Input Voltage: 12 Vdc** 

**Filter Model: VFM-25C DC-DC Converter Model: VHK200W-Q24-S12 Input Voltage: 24 Vdc** 

20050 SW 112[th] Ave. Tualatin, Oregon 97062 phone 503.612.2300 fax 503.612.2383   www.cui.com 



## Links

- [View this product on Novapart](https://novapart.co/products/VFM-25C/power-line-filter-general-purpose-1-stage-25-a-36)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/cui/vfm-25c/dc-emi-filter-25a-36v-terminal/dp/3594589)
---

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