WCL3225-2R2-R

Technical Data **10931** 

Effective July 2019 

## WCL3225 Wire wound chip inductor 

## **Applications** 

- Industrial connectivity (IoT) 

- Computing/gaming consoles 

- Smart meters 

- Industrial equipment 

- Machine-to-machine (M2M) 

- Mobile phones 

- Wearable devices 

- Wireless LAN 

- Wireless communiations 

## **Product features** 

- 1210 (3225 metric) package 

- High Q value 

- Tight inductance tolerance 

      - Bluetooth 

      - WiFi 

      - Antenna 

   - RF transciever modules 

- Inductance range from 0.12 uH to 560 uH 

- Moisture sensitivity level (MSL): 1 

## **Environmental data** 

- Operating temperature range: -40 °C to +85 °C 

- Solder reflow temperature: J-STD-020 (latest revision) compliant 

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HALOGEN<br>Pb HF<br>FREE<br>**----- End of picture text -----**<br>


WCL3225 Wire wound chip inductor 

Technical Data 10931 Effective July 2019 

## **Product specifications** 

|**Part number**||**OCL**<br>**(uH) ±5%**|**I Rated**<br>**(mA)**<br>**maximum**||**OCL**<br>**Test frequency**<br>**(MHz)**||**Test**<br>**voltage**<br>**(mV)**||**DCR (Ω)**<br>**maximum**<br>**@ +25°C**||**SRF**<br>**(MHz)**<br>**minimum**||**Q**<br>**minimum**||**Q**<br>**Test frequency**<br>**(MHz)**|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|WCL3225-R12-R||0.12|450||25.2||500||0.20||850||20||25.2|
|WCL3225-R27-R||0.27|450||25.2||500||0.20||700||20||25.2|
|WCL3225-R33-R||0.33|450||25.2||500||0.30||520||20||25.2|
|WCL3225-R47-R||0.47|450||25.2||500||0.30||480||20||25.2|
|WCL3225-R82-R||0.82|450||25.2||500||0.30||350||20||25.2|
|WCL3225-1R0-R||1.0|450||7.96||500||0.30||320||12||7.96|
|WCL3225-1R2-R||1.2|450||7.96||500||0.30||210||12||7.96|
|WCL3225-1R5-R||1.5|450||7.96||500||0.40||200||12||7.96|
|WCL3225-1R8-R||1.8|450||7.96||500||0.50||195||12||7.96|
|WCL3225-2R2-R||2.2|450||7.96||500||0.60||175||12||7.96|
|WCL3225-2R7-R||2.7|420||7.96||500||0.70||120||12||7.96|
|WCL3225-3R3-R||3.3|380||7.96||500||1.10||80||12||7.96|
|WCL3225-3R9-R||3.9|360||7.96||500||1.20||75||12||7.96|
|WCL3225-4R7-R||4.7|350||7.96||500||1.30||60||12||7.96|
|WCL3225-5R6-R||5.6|320||7.96||500||2.00||50||12||7.96|
|WCL3225-6R8-R||6.8|310||7.96||500||1.50||35||12||7.96|
|WCL3225-8R2-R||8.2|305||7.96||500||1.60||35||12||7.96|
|WCL3225-100-R||10|300||2.52||500||1.00||30||10||2.52|
|WCL3225-120-R||12|265||2.52||500||1.20||25||10||2.52|
|WCL3225-150-R||15|225||2.52||500||2.00||22||10||2.52|
|WCL3225-180-R||18|210||2.52||500||2.10||22||10||2.52|
|WCL3225-220-R||22|200||2.52||500||2.40||20||10||2.52|
|WCL3225-270-R||27|180||2.52||500||2.70||18||10||2.52|
|WCL3225-330-R||33|160||2.52||500||2.90||15||10||2.52|
|WCL3225-390-R||39|150||2.52||500||4.70||16||10||2.52|
|WCL3225-470-R||47|140||2.52||500||5.20||10||10||2.52|
|WCL3225-560-R||56|125||2.52||500||5.60||8.0||10||2.52|
|WCL3225-680-R||68|110||2.52||500||4.70||5.0||10||2.52|
|WCL3225-820-R||82|100||2.52||500||5.60||5.0||10||2.52|
|WCL3225-101-R||100|95||0.796||500||6.80||5.0||8||0.796|
|WCL3225-121-R||120|85||0.796||500||7.90||4.0||8||0.796|
|WCL3225-151-R||150|80||0.796||500||9.00||4.0||8||0.796|
|WCL3225-181-R||180|70||0.796||500||14.5||3.0||8||0.796|
|WCL3225-221-R||220|65||0.796||500||16.5||2.6||8||0.796|
|WCL3225-271-R||270|60||0.796||500||18.0||2.5||8||0.796|
|WCL3225-331-R||330|55||0.796||500||19.0||2.3||8||0.796|
|WCL3225-391-R||390|45||0.796||500||21.5||2.2||8||0.796|
|WCL3225-471-R||470|40||0.796||500||22.5||2.0||8||0.796|
|WCL3225-561-R||560|30||0.796||500||28.0||1.5||8||0.796|



1. Test frequency and voltage at +25 °C. Test voltage is for both OCL and Q. 

2. Resistance to soldering heat: +260 ±5 °C for 10 ± 1 second 

3. At low temperature resistance (-40 ±2°C) the inductance change is within ±5% and the Q within ±10% 

4. At high temperature resistance  (+85 ±5°C) the inductance change is within ±5% and the Q within ±10% 

5. At high temperature load  (+85 ±2°C) the inductance change is within ±5% and the Q within ±10% 

6. Insulation Resistance: ≥ 500 MΩ with an input voltage of 100 V ±15 Vdc 

- 7 Temperature Characteristics:  From -40 °C to +85 °C the inductance is within ±5% 

8. Rated I: When rated I is applied to the product, self-temperature rise will be 20 °C or less. 

9. Part Number Definition: WCL2520-xxx-R 

- WCL2520 = Product code and size 

- xxx= inductance value in uH, R= decimal point, If no R is present then last character equals number of zeros 

- -R suffix = RoHS compliant 

2 

www.eaton.com/electronics 

Technical Data 10931 Effective July 2019 

WCL3225 Wire wound chip inductor 

## **Dimensions (mm)** 

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||||||||||
|---|---|---|---|---|---|---|---|---|
|Recommended pad layout|
|F|G|
|H|H|
|FLL|
|C|
|=|
|_——|A|
|D|
|E|
||_||
|Part Number|A|B|C|D|E|F|G|H|
|WCL3225-xxx-R|3.5 max|2.9 max|2.25 max|0.50 ref|2.1 ref|2.54|1.78|1.02|
|a|

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## Schematic 

Part marking: xxx= =Inductance value in uH, R=decimal point. If no R is present then last character equals number of zeros All soldering surfaces to be coplanar within 0.1 millimeters Tolerances are ±0.2 millimeters unless stated otherwise Pad layout tolerances are ±0.1 millimeters unless stated otherwise 

Do not route traces or vias underneath the inductor 

## **Packaging information (mm)** 

## Drawing not to scale 

Supplied in tape and reel packaging, 2000 parts per 7” diameter reel 

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a<br>—<br>TT<br>ne<br>W ±0.30 8.00<br>F±0.05 3.50<br>E1±0.10 1.75<br>E2 Min 6.25<br>P0±0.10 4.00<br>P1±0.10 4.00<br>P2±0.05 2.00<br>D0+0.10/-0 1.50<br>D1+0.10/-0 0.65<br>A0 2.96±0.05<br>B0 3.60±0.10<br>K0 2.4 ±0.10<br>T Max 0.23<br>**----- End of picture text -----**<br>


3 

www.eaton.com/electronics 

WCL3225 Wire wound chip inductor 

Technical Data 10931 Effective July 2019 

## **Inductance vs frequency** 

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15<br>12<br>WCL3225-100-R<br>9<br>6<br>WCL3225-4R7-R<br>3<br>WCL3225-1R5-R<br>0<br>1 10 100 1000 10000<br>Frequency [MHz]<br>�<br>uH<br>�<br>Inductance<br>**----- End of picture text -----**<br>


## **Q vs frequency** 

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40<br>30<br>WCL3225-4R7-R<br>20 WCL3225-1R5-R<br>WCL3225-100-R<br>10<br>0<br>1 10 100 1000<br>Frequency [MHz]<br>Q<br>**----- End of picture text -----**<br>


4 

www.eaton.com/electronics 

Technical Data 10931 Effective July 2019 

WCL3225 Wire wound chip inductor 

## **Solder reflow profile** 

## **Table 1 - Standard SnPb solder (Tc)** 

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|---|---|---|---|---|
|TP|
|TC -5 °C|Volume|Volume|
|Max. ramp up rate = 3° C/s|tP|Package|mm3|mm3|
|Max. ramp down rate = 6 °C/s|Thickness|<350|≥350|
|<2.5 mm)|235 °C|220 °C|
|TL|
|Preheat|t|≥2.5 mm|220 °C|220 °C|
|a|A|eee|eee|
|Tsmax|Table 2 - Lead (Pb) free solder (Tc)|
|Volume|Volume|
|Package|mm|[[3]]|mm|[[3]]|
|Tsmin|thickness|<350|350 - 2000|
|ts|<1.6 mm|260 °C|260 °C|
|1.6 – 2.5 mm|260 °C|250 °C|
|>2.5 mm|250 °C|245 °C|
|25°C|
|Time 25 °C to peak|Time|

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|---|---|---|---|---|---|---|
|Volume|Volume|Volume|
|Package|mm|[[3]]|mm|[[3]]|mm|[3]|
|thickness|<350|350 - 2000|>2000|
|<1.6 mm|260 °C|260 °C|260 °C|
|1.6 – 2.5 mm|260 °C|250 °C|245 °C|
|>2.5 mm|250 °C|245 °C|245 °C|

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## **Reference J-STD-020** 

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|---|---|---|
|Profile feature|Standard SnPb solder|Lead (Pb) free solder|
|Preheat and soak     • Temperature min. (Tsmin)|100 °C|150 °C|
|• Temperature max. (Tsmax)|150 °C|200 °C|
|• Time (Tsmin to Tsmax) (ts)|60-120 seconds|60-120 seconds|
|Average ramp up rate Tsmax to Tp|3 °C/ second max.|3 °C/ second max.|
|Liquidous temperature (Tl)|183 °C|217 °C|
|Time at liquidous (tL)|60-150 seconds|60-150 seconds|
|Peak package body temperature (TP)*|Table 1|Table 2|
|Time (tp)** within 5 °C of the specified classification temperature (Tc)|10 seconds**|10 seconds**|
|Average ramp-down rate (Tp to Tsmax)|6 °C/ second max.|6 °C/ second max.|
|Time 25 °C to peak temperature|6 minutes max.|8 minutes max.|

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* Tolerance for peak profile temperature (Tp) is defined as a supplier minimum and a user maximum. 

** Tolerance for time at peak profile temperature (tp) is defined as a supplier minimum and a user maximum. 

Life Support Policy: Eaton does not authorize the use of any of its products for use in life support devices or systems without the express written approval of an officer of the Company. Life support systems are devices which support or sustain life, and whose failure to perform, when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in significant injury to the user. 

Eaton reserves the right, without notice, to change design or construction of any products and to discontinue or limit distribution of any products. Eaton also reserves the right to change or update, without notice, any technical information contained in this bulletin. 

**Eaton Electronics Division** 1000 Eaton Boulevard Cleveland, OH 44122 United States www.eaton.com/electronics © 2019 Eaton All Rights Reserved Printed in USA Publication No. 10931 BU-MC19063 July 2019 

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