# Power Inductor (SMD), AEC-Q200, 1.2 µH, 3 A, Semishielded, 3.6 A, SRN4018TA

![Product image](https://novapart.co/image/farnell:2677198/)

**URL**: https://novapart.co/products/SRN4018TA-1R2M/power-inductor-smd-aec-q200-12-h-3-a-semishielded
**SKU**: SRN4018TA-1R2M
**Manufacturer**: BOURNS
**Category**: Passive Components || Inductors || Power Inductors || SMD Power Inductors
**Price**: €0.1520
**Stock**: 10+

## Specifications

| Parameter | Value |
|---|---|
| Inductance | 1.2µH |
| Product Range | SRN4018TA |
| Product Width | 4mm |
| Product Height | 1.8mm |
| Product Length | 4mm |
| Dc Resistance Max | 0.028ohm |
| Rms Current (Irms) | 3A |
| Power Inductor Case | 4mm x 4mm x 1.8mm |
| Inductance Tolerance | ± 20% |
| Inductor Construction | Semishielded |
| Saturation Current (Isat) | 3.6A |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:2677198/)

## **Features** 

- n Semi-shielded construction n Inductance range: 1 to 150 µH n Rated current up to 3.2 A n AEC-Q200 qualified 

   - n RoHS compliant* and halogen free** 

## **Applications** 

n Automotive n Digital video systems: cameras -  Driver assistant n HDDs -  Infotainment n Smartphones -  Lighting n Televisions, LCD n DC/DC converters displays n Power supplies 

## **SRN4018TA Series - Semi-shielded Power Inductors** BPOURNS --A 

## ~~**Electrical Specifcations @ 25 °C**~~ 

~~**General Specifcations**~~ Operating Temperature ................................. -40 °C to +125 °C (Temperature rise included) Storage Temperature .. -40 °C to +125 °C Temperature Rise .....40 °C at rated Irms Rated Current ............ Inductance drops 30 % at Isat Failure In Time (FIT) ........24.7/10[9] hours Mean Time Between Failures (MTBF) ..................................40.4 x 10[6] hours 

|**Bourns Part No.**<br>~~PoC~~|**Inductance**<br>**@ 100 kHz / 1 V**|**Inductance**<br>**@ 100 kHz / 1 V**|**Q**<br>**(Min.)**<br>**@ 100 kHz**|**SRF**<br>**(MHz)**<br>**Typ.**|**DCR**<br>**(**W**)**<br>**±20 %**|**Irms**<br>**(A)**|**Isat**<br>**(A)**|
|---|---|---|---|---|---|---|---|
||**L(**m**H)**<br>~~PoC~~|**Tol. %**||||||
|SRN4018TA-1R0M<br>~~PoC~~<br>~~Pp~~<br>~~ti(Cid~~|1.0<br>~~PoC~~<br>~~ti(Cid~~|±20|10|145|0.027|3.2|4|
|SRN4018TA-1R2M<br>~~PoC~~<br>~~Pp~~<br>~~ti(Cid~~<br>~~pot~~|1.2<br>~~PoC~~<br>~~ti(Cid~~|±20|10|140|0.028|3|3.6|
|SRN4018TA-1R5M<br>~~Pp~~<br>~~ti(Cid~~<br>~~pot~~<br>~~es~~|1.5<br>~~ti(Cid~~<br>~~rs~~|±20<br>~~rs~~|10<br>~~rs~~|115|0.032|2.7|3.3|
|SRN4018TA-2R2M<br>~~pot~~<br>~~es~~<br>~~es es~~|2.2<br>~~rs~~<br>~~es~~|±20<br>~~rs~~<br>~~rs~~|10<br>~~rs~~<br>~~rs~~|90|0.042|2.2|3|
|SRN4018TA-3R3M<br>~~es ~~<br>~~es es~~<br>~~es~~|3.3<br> ~~rs~~<br>~~es~~<br>~~ss~~|±20<br>~~rs~~<br>~~rs~~<br>~~ss~~|10<br>~~rs~~<br>~~rs~~|72|0.055|2|2.3|
|SRN4018TA-4R7M<br>~~es es~~<br>~~es~~<br>~~PoC~~|4.7<br>~~es ~~<br>~~ss~~<br>~~PoC~~|±20<br> ~~rs~~<br>~~ss~~|10<br>~~rs~~|58|0.07|1.7|2|
|SRN4018TA-6R8M<br>~~es ~~<br>~~PoC~~<br>~~Pp~~<br>~~ti(Cid~~|6.8<br> ~~ss~~<br>~~PoC~~<br>~~ti(Cid~~|±20<br>~~ss~~|10|46|0.098|1.45|1.6|
|SRN4018TA-100M<br>~~PoC~~<br>~~Pp~~<br>~~ti(Cid~~<br>~~pot~~|10<br>~~PoC~~<br>~~ti(Cid~~|±20|10|40|0.15|1.2|1.3|
|SRN4018TA-150M<br>~~Pp~~<br>~~ti(Cid~~<br>~~pot~~<br>~~es~~|15<br>~~ti(Cid~~<br>~~rs~~|±20<br>~~rs~~|10<br>~~rs~~|30|0.23|0.9|1.1|
|SRN4018TA-220M<br>~~pot~~<br>~~es~~<br>~~es es~~|22<br>~~rs~~<br>~~es~~|±20<br>~~rs~~<br>~~rs~~|10<br>~~rs~~<br>~~rs~~|26|0.29|0.75|0.9|
|SRN4018TA-330M<br>~~es ~~<br>~~es es~~<br>~~es~~|33<br> ~~rs~~<br>~~es~~<br>~~ss~~|±20<br>~~rs~~<br>~~rs~~<br>~~ss~~|10<br>~~rs~~<br>~~rs~~|20|0.405|0.65|0.7|
|SRN4018TA-470M<br>~~es es~~<br>~~es~~<br>~~PoC~~|47<br>~~es ~~<br>~~ss~~<br>~~PoC~~|±20<br> ~~rs~~<br>~~ss~~|10<br>~~rs~~|17|0.585|0.58|0.6|
|SRN4018TA-680M<br>~~es ~~<br>~~PoC~~<br>~~Pp~~<br>~~ti(Cid~~|68<br> ~~ss~~<br>~~PoC~~<br>~~ti(Cid~~|±20<br>~~ss~~|10|15|0.89|0.48|0.52|
|SRN4018TA-101M<br>~~PoC~~<br>~~Pp~~<br>~~ti(Cid~~|100<br>~~PoC~~<br>~~ti(Cid~~|±20|10|4|1.38|0.34|0.42|
|SRN4018TA-151M<br>~~Pp~~<br>~~ti(Cid~~|150<br>~~ti(Cid~~|±20|10|4|1.97|0.27|0.31|



## ~~**Materials**~~ 

Core ..............................................Ferrite Wire ............................Enameled copper Terminal Finish ...................................Sn Coating .................Magnetic epoxy resin Packaging ..... 3000 pcs. per 13-inch reel 

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Product Dimensions<br>100 ±20 10 4 1.38 0.34 0.42<br>ti(Cid 4.0 ± 0.3<br>150 ±20 10 4 1.97 0.27 0.31 (.157 ± .012)<br>Soldering Proflele SaaaN<br>Preheating Soldering Natural Cooling | 4.0 ± 0.3<br>| 1.0 (.157 ± .012)<br>TP (260 °C, 10 Sec. Max.)<br>—| N XNR: |<br>tp (245 °C, 20~40 Sec.)<br>NX NQ<br>217 °C<br>a 200 °C — aNW<br>60~150 Sec. 1.65 ± 0.2<br>_ 150°C FS es ee (.065 ± .008)<br>60~180<br>F . SSY<br>Sec.<br>RxIX x<\<br>480 Sec. Max. el | —— 1.8<br>(.071)<br>25 MAX.<br>Time (Seconds) —<br>Temperature (°C)<br>**----- End of picture text -----**<br>


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


## ~~**Electrical Schematic**~~ 

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How to Order<br>SRN4018TA  -  100M<br>Model<br>Value Code (see table)<br>**----- End of picture text -----**<br>


*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011. 

**Bourns considers a product to be “halogen free” if (a) the Bromine (Br) content is 900 ppm or less; (b) the Chlorine (Cl) content is 900 ppm or less; and (c) the total Bromine (Br) and Chlorine (Cl) content is 1500 ppm or less. Specifications are subject to change without notice. 

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 specific applications. 

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Recommended Layout<br>4.3<br>-—_POR —_- (.169) [REF.] O04| ee<br>RSS —-—-BUSHY<br>eetetetetceRRL EE SatetatetceRS —— 4.3<br>Watatetetes areteetes (.169)<br>KRESS RRS REF.<br>eeseceectce EEE Satatoncece<br>RERKSe BEKO<br>eaccectatce ME Caatotetee<br>receseceses fmm eeatateses<br>REF. 0.9 DIMENSIONS: MM<br>(.035) (INCHES)<br>**----- End of picture text -----**<br>


## **SRF0504 Series - Line FilterN4018TA Series - Semi-shielded Power Inductors** 

## ~~**Inductance vs. Current**~~ 

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SRP4018TA-1R0M SRP4018TA-1R2M SRP4018TA-1R5M<br>2.0 15 2.0 20 2.0 17.0<br>1.6 12 1.6 16 1.6 13.6<br>1.2 9 1.2 12 1.2 10.2<br>0.8 6 0.8 8 0.8 6.8<br>0.4 3 0.4 4 0.4 3.4<br>0 0 0 0 0 0<br>0 0.88 1.76 2.64 3.52 4.40 0 0.72 1.44 2.16 2.88 3.60 0 0.7 1.4 2.1 2.8 3.5<br>DC Current (A) DC Current (A) DC Current (A)<br>SRP4018TA-2R2M SRP4018TA-3R3M SRP4018TA-4R7M<br>4.0 13.0 6.0 18.0 8.0 11.0<br>3.2 10.4 4.8 14.4 6.4 8.8<br>2.4 7.8 3.6 10.8 4.8 6.6<br>1.6 5.2 2.4 7.2 3.2 4.4<br>0.8 2.6 1.2 3.6 1.6 2.2<br>0 0 0 0 0 0<br>0 0.64 1.28 1.92 2.56 3.2 0 0.5 1.0 1.5 2.0 2.5 0 0.44 0.88 1.32 1.76 2.20<br>DC Current (A) DC Current (A) DC Current (A)<br>SRP4018TA-6R8M SRP4018TA-100M SRP4018TA-150M<br>12.0 9.0 18.0 12.0 20 28.0<br>9.6 7.2 14.4 9.6 16 22.4<br>7.2 5.4 10.8 7.2 12 16.8<br>4.8 3.6 7.2 4.8 8 11.2<br>2.4 1.8 3.6 2.4 4 5.6<br>0 0 0.36 0.72 1.08 1.44 1.800 0 0 0.3 0.6 0.9 1.2 1.50 0 0 0.22 0.44 0.66 0.88 1.100<br>DC Current (A) DC Current (A) DC Current (A)<br>SRP4018TA-220M SRP4018TA-330M SRP4018TA-470M<br>44.0 8.0 50 20 70 20<br>35.2 6.4 40 16 56 16<br>26.4 4.8 30 12 42 12<br>17.6 3.2 20 8 28 8<br>8.8 1.6 10 4 14 4<br>0 0 0 0 0 0<br>0 0.18 0.36 0.54 0.72 0.90 0 0.16 0.32 0.48 0.64 0.80 0 0.12 0.24 0.36 0.48 0.60<br>DC Current (A) DC Current (A) DC Current (A)<br>H)Inductance (μ H)Inductance (μ H)Inductance (μ<br>Temperature Rise (°C) Temperature Rise (°C) Temperature Rise (°C)<br>H)Inductance (μ H)Inductance (μ H)Inductance (μ<br>Temperature Rise (°C) Temperature Rise (°C) Temperature Rise (°C)<br>H)Inductance (μ H)Inductance (μ H)Inductance (μ<br>Temperature Rise (°C) Temperature Rise (°C) Temperature Rise (°C)<br>H)Inductance (μ H)Inductance (μ H)Inductance (μ<br>Temperature Rise (°C) Temperature Rise (°C) Temperature Rise (°C)<br>**----- End of picture text -----**<br>


Specifications are subject to change without notice. 

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 i ~~n~~ their specific applications. 

## **SRF0504 Series - N4018TA Serie** ~~**sL**~~ **- Semi-shielded Power Indine Filter** ~~**u**~~ **ctors** 

## ~~**Inductance vs. Current**~~ 

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SRP4018TA-680M SRP4018TA-101M SRP4018TA-151M<br>100 20 150 30 200 30<br>80 Pt tf ft f y 16 120 Ft | t | ] 24 160 P t 24<br>60 12 90 a 18 120 SSE 18<br>A | [tf<br>40 8 60 12 80 12<br>20 PF | | vi 4 30 | | |r | 6 40 | | [Trl 6<br>0 0 | 0.11 | 0.22 rl 0.33 [ 0.44 | 0.550 0 0 | 0.084 t+ 0.168 qT | 0.252 | 0.336 | 0.4200 0 0 | [ts] 0.066 0.132 0.198 | 0.264 0.3300<br>DC Current (A) DC Current (A) DC Current (A)<br>Packaging Specifcations<br>330 2.0 ± 0.5<br>(12.99) [DIA.] (.079 ± .020)<br>_ ar THICKNESS<br>13.5 ± 0.5<br>(.531 ± .020)<br>a TS \ DIA. | ey & a SS EMBOSSED<br>100.0 ± 2.0<br>LG) Py,— (3.937 ± .079) A NS CAVITY<br>13.5 ± 0.5 m a t P|} —4 QO<br>(.531 ± .020) _ - [DIA.] a<br>12.5 ± 0.5<br>(.492 ± .020)<br>1.75 ± 0.1 DIA.<br>(.069 ± .004) 4.0 ± 0.1 2.0 ± 0.1 1.5 +0.1/-0.0 0.35 ± 0.05<br>(.157 ± .004) (.079 ± .004) (.059 +.004/-.000) (.014 ± .002)<br>et  et pe<br>4.4 ± 0.1<br>5.5 ± 0.1 (.173 ± .004)<br>(.217 ± .004)<br>| rm? OSS 1.0 1.0 OFS 1.0 1.0 SCH<br>12.0 ± 0.1<br>(.472 ± .004) J oo +<br>| | |<br>8.0 ± 0.1 30 ° 2.0 ± 0.1<br>(.315 ± .004) ee - 3 ° | | (.079 ± .004)<br>P e _<br>USER DIRECTION OF FEED MM<br>_ TE S DIMENSIONS: a<br>QTY: 3000 PCS. PER REEL (INCHES)<br>H)Inductance (μ H)Inductance (μ H)Inductance (μ<br>Temperature Rise (°C) Temperature Rise (°C) Temperature Rise (°C)<br>**----- End of picture text -----**<br>


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Specifications are subject to change without notice. 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 specific applications. 



## Links

- [View this product on Novapart](https://novapart.co/products/SRN4018TA-1R2M/power-inductor-smd-aec-q200-12-h-3-a-semishielded)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/en-ES/bourns/srn4018ta-1r2m/inductor-1-2uh-3a-20-aec-q200/dp/2677198)
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