# COMMON MODE CHOKE, 250UH, 1.2A, 50%

![Product image](https://novapart.co/image/farnell:1791508/)

**URL**: https://novapart.co/products/SRF0905-251Y/common-mode-choke-250uh-12a-50
**SKU**: SRF0905-251Y
**Manufacturer**: BOURNS
**Category**: Passive Components || EMC / RFI Suppression || Common Mode Chokes / Filters || SMD Common Mode Chokes / Filters
**Price**: €0.6240
**Stock**: 10+
**Lead Time**: 47 days (indicative)

## Description

DC Current Rating:1.2A; Inductance:250µH; Product Range:SRF0905 Series; Impedance:600ohm; Inductor Case / Package:SMD; Product Length:9.2mm; Product Width:6mm; Produ

## Specifications

| Parameter | Value |
|---|---|
| Svhc | No SVHC (04-Feb-2026) |
| Impedance | 600ohm |
| Product Range | SRF0905 Series |
| Product Width | 6mm |
| Qualification | - |
| Product Height | 5mm |
| Product Length | 9.2mm |
| Common Mode Filter Case | 9.2mm x 6mm x 5mm |
| Inductor Case / Package | SMD |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:1791508/)

**Applications** 

■ Current rating up to 1.6 A 

■ EMI suppression 

## **Features** 

■ Inductance range: 10 to 6500 μH 

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■  Frequency range to 300 MHz 

■ RoHS compliant* 

## **SRF0905 Series - Line Filter** 

~~**Electrical Specif cations @ 25 °C**~~ 

|**Part Number**<br>~~|~~|**L**<br>**(**μ**H) ****<br>~~Ly~~|**Leakage**<br>**Ind.**<br>**(**μ**H)**<br>**Max.**<br>~~Ly~~|**DCR**<br>**(**Ω**) max.**<br>**(each**<br>**winding)**<br>~~Ly~~<br>~~|~~|**Rated**<br>**Voltage**<br>**(Vdc)**<br>~~|~~<br>~~|~~|**Rated**<br>**Current**<br>**(A)**<br>~~|ee~~|**Impedance(Z)**<br>~~ee~~|**Impedance(Z)**<br>~~ee~~|
|---|---|---|---|---|---|---|---|
|||||||**Freq.**<br>**Range**<br>**(MHz)**<br>~~ee~~|**Min.**<br>**Value**<br>**(**Ω**)**<br>~~ee~~|
|SRF0905-100Y<br>~~|~~|10 ± 30 %<br>~~Ly~~|8<br>~~Ly~~|0.08<br>~~Ly~~<br>~~|~~|80<br>~~|~~<br>~~|~~|1.6<br>~~| ee~~|20 - 300<br>~~ee~~|200<br>~~ee~~|
|SRF0905-250Y<br>~~———~~|25 ± 30 %<br>~~———~~|16<br>~~———~~|0.16<br>~~———~~|80<br>~~———~~|1.0<br>~~———~~|20 - 150<br>~~———~~|600<br>~~———~~|
|SRF0905-400Y<br>~~———~~|40 ± 30 %<br>~~———~~|18<br>~~———~~|0.25<br>~~———~~|80<br>~~———~~|0.9<br>~~———~~|20 - 100<br>~~———~~|800<br>~~———~~|
|SRF0905-500Y<br>~~———~~<br>~~ee Rs~~|50 ± 30 %<br>~~———~~<br>~~Rs~~|22<br>~~———~~<br>~~ns~~|0.32<br>~~———~~<br>~~UD~~|80<br>~~———~~<br>~~I~~|0.8<br>~~———~~<br>~~I~~|20 - 100<br>~~———~~<br>~~I~~|1500<br>~~———~~|
|SRF0905-251Y<br>~~ee Rs~~|250 ± 50 %<br>~~Rs~~|0.11<br>~~ns~~<br>~~DD~~|0.13<br>~~UD~~<br>~~ID~~|80<br>~~I~~<br>~~I~~|1.2<br>~~I~~<br>~~I~~|3 - 20<br>~~I~~<br>~~I~~|600|
|SRF0905-471Y<br>~~ee Rs~~<br>~~ss~~|470 ± 50 %<br>~~Rs~~<br>~~ss~~|0.12<br>~~ns ~~<br>~~ss~~<br>~~DD~~|0.14<br> ~~UD ~~<br>~~ss~~<br>~~ID~~|80<br> ~~I~~<br>~~ss~~<br>~~I~~|1.1<br>~~I~~<br>~~ss~~<br>~~I~~|2 - 20<br>~~I~~<br>~~ss~~<br>~~I~~|1000<br>~~ss~~|
|SRF0905-501Y<br>~~ee~~|500 ± 50 %<br>~~ee~~|0.12<br>~~DD ~~<br>~~ee~~|0.15<br> ~~ID ~~<br>~~ee~~|80<br> ~~I ~~<br>~~ee~~|1.0<br> ~~I ~~<br>~~ee~~|1 - 20<br> ~~I~~<br>~~ee~~|1000<br>~~ee~~|
|SRF0905-102Y<br>~~ee~~|1000 ± 50 %<br>~~ee~~|0.17<br>~~ee~~|0.31<br>~~ee~~|80<br>~~ee~~|0.8<br>~~ee~~|1 - 15<br>~~ee~~|1500<br>~~ee~~|
|SRF0905-202Y<br>~~————~~|2000 ± 50 %<br>~~————~~|0.25<br>~~————~~|0.42<br>~~————~~|80<br>~~————~~|0.6<br>~~————~~|1 - 5<br>~~————~~|3000<br>~~————~~|
|SRF0905-472Y<br>~~————~~|4700 ± 50 %<br>~~————~~|0.36<br>~~————~~|0.90<br>~~————~~|80<br>~~————~~|0.4<br>~~————~~|0.3 - 3<br>~~————~~|4000<br>~~————~~|
|SRF0905-652Y<br>~~————~~|6500 ± 50 %<br>~~————~~|0.39<br>~~————~~|1.05<br>~~————~~|80<br>~~————~~|0.3<br>~~————~~|0.3 - 2<br>~~————~~|5000<br>~~————~~|



## ~~**General Specif cations**~~ 

Temperature Rise .. 45 °C at rated current Hi-Pot ............................ 500 VAC, 60 Hz, 3 mA max. for 3 seconds Operating Temperature ................................. -40 °C to +105 °C (Temperature rise included) Storage Temperature .. -40 °C to +105 °C Solderability .................260 °C for 5 sec. (JEDEC J-STD-020D) 

## ~~**Materials**~~ 

Core Material ................................Ferrite Base ................................................LCP Wire ............................Enameled copper Terminal coating .................................Sn Packaging ..... 1000 pcs. per 13-inch reel 

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Product Dimensions<br>** Test condition: 10 - 50 μH, 0.1 V, 1 KHz; 250 - 6500 μH, 5 mV, 100 KHz<br>Schematic Typical Part Marking<br>N2 100Y (.236 ± .012)6.00 ± 0.30<br>2 3<br>o f<br>100Y<br>9.20 ± 0.30<br>1 4 (.362 ± .012)<br>O-* 0000 N1 —o ——<br>= POLARITY 0.8 ± 0.2 5.00 ± 0.30<br>(.031 ± .008) (.197 ± .012)<br>How to Order Recommended Layout<br>SRF0905  -  102  Y 1.4<br>: —<br>(.055)  [MAX.]<br>Model 1.2 1.8<br>(.071)<br>Value Code (see table) 2.54 (.047) MAX.<br>Tolerance Code (see table) — (.100) tf (.047)1.2 2 _ 3<br>| a a 4S T e<br>2.0<br>9.5 (.079) 1 4<br>aE (.374) lols:<br>5.70<br>REF.<br>(.224)<br>PS 2.54 ± 0.20 1.00 ± 0.10<br>(.100 ± .008) (.039 ± .004)<br>MM<br>DIMENSIONS:<br>(INCHES)<br>*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.<br>Specifi cations are subject to change without notice.<br>The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.<br>Users should verify actual device performance in their specifi c applications.<br>**----- End of picture text -----**<br>


## **SRF0905 Series - Line Filter** 

## ~~**Impedance Graphs**~~ 

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MEASURING CIRCUIT<br>Oe QQQ0Q0 7-0<br>eee<br>7<br>7 202Y<br>5 102Y<br>3 SS] 500Y 400Y 5 PASS 501Y RF IMPEDANCEANALYZER<br>3<br>250Y 652Y<br>v, f 471Y AN, 20<br>472Y<br>1 nHAX 1 J) iew| 251Y 10 PRS<br>100Y<br>0.7 8<br>0.7<br>0.5 we A A 0.5 2 /AE Ee 5 S/o<br>Lf ff SA ff > oN 7 A<br>0.3 0.3 2<br>Uf) PN 1 FO<br>V ‘Al<br>0.1 ABE<br>1 3 10 30 100 300 0.1 0.3 1 3 10 30 100 0.1 0.3 1 3 10 30 100<br>Frequency (MHz) Frequency (MHz) Frequency (MHz)<br>Packaging Specif cations<br>330 2.0 ± 0.5 22.4<br>(12.99)  — [DIA.] tT (.079 ± .020) —" (.882) r<br>THICKNESS<br>13.0<br>21.0 ± 0.8<br>(.827 ± .031) (.512)DIA.<br>=| \ _ —T & {00A<br>50.0 -0<br>(1.97 -0)<br>akYP = -_ A NS) CAVITY<br>a (.512)13.0 [DIA.] g,<br>16.0<br>18 +0<br>(.630)<br>(.709 +0)<br>12.0 4.0<br>END (.472) =the (.157) START .<br>OOM OOOOOOWOE<br>NO COMPONENT COMPONENTS NO COMPONENT<br>200 400<br>aa<br>(7.87) (15.75)<br>USER DIRECTION OF FEED DIMENSIONS: a MM<br>(INCHES)<br>QTY: 1000 PCS. PER REEL<br>REV. 05/14<br>Specifi cations are subject to change without notice.<br>)Ω<br>)Ω<br>)Ω<br>Impedance (K<br>Impedance (K<br>Impedance (K<br>100Y 100Y 100Y 100Y 100Y 100Y<br>**----- End of picture text -----**<br>


The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time. Users should verify actual device performance in their specifi c applications. 

REV. 05/14 



## Links

- [View this product on Novapart](https://novapart.co/products/SRF0905-251Y/common-mode-choke-250uh-12a-50)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/bourns/srf0905-251y/common-mode-choke-250uh-1-2a-50/dp/1791508)
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