MSS5121-224MLB

Power Inductor (SMD), 220 µH, 290 mA, Shielded, 210 mA, MSS5121 Series

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Manufacturer: COILCRAFT
Product type: SMD Power Inductors
Inductance:220µH; RMS Current (Irms):290mA; Inductor Construction:Shielded; Saturation Current (Isat):210mA; Product Range:-; Power Inductor Case:5.1mm x 5.1mm x 2.2mm; DC Resist
Inductance: 220µH
Product Range: MSS5121 Series
Product Width: 5.1mm
Product Height: 2.2mm
Product Length: 5.1mm
DC Resistance Max: 3.1ohm
RMS Current (Irms): 290mA
Inductance Tolerance: ± 20%
Inductor Construction: Shielded
Saturation Current (Isat): 210mA

Delivery and price
Units per pack	1000
Price	0.482 €
Current stock	10+
Lead time	30 days

Datasheet

Document 495-1 

## **– Shielded Power Inductors MSS5121** 

- Low profile shielded power inductors 

- Low DCR, excellent current handling and low cost 

## **Designer’s Kit C411** contains 3 of each value **Core material** Ferrite 

**Terminations** RoHS compliant gold over nickel over phos bronze. Other terminations available at additional cost. 

**Weight** 141 – 147 mg 

**Ambient temperature** –40°C to +85°C with I rms current, +85°C to +125°C with derated current 

**Storage temperature** Component: –40°C to +125°C. Tape and reel packaging: –40°C to +80°C 

**Resistance to soldering heat** Max three 40 second reflows at +260°C, parts cooled to room temperature between cycles **Moisture Sensitivity Level (MSL)** 1 (unlimited floor life at <30°C / 85% relative humidity) 

**Failures in Time (FIT) / Mean Time Between Failures (MTBF)** 38 per billion hours / 26,315,789 hours, calculated per Telcordia SR-332 **Packaging** 600/7″ reel, 2500/13″ reel; Plastic tape: 12 mm wide, 0.35 mm thick, 8 mm pocket spacing, 3.25 mm pocket depth **PCB washing** Only pure water or alcohol recommended 

|||**DCR**|**SRF**<br>  **Isat(A)**4**Irms(A)**5|**SRF**<br>  **Isat(A)**4**Irms(A)**5|**SRF**<br>  **Isat(A)**4**Irms(A)**5|
|---|---|---|---|---|---|
|**Inductance**2**max**<br>  **Part number**1<br>**±20%(µH) (Ohms) **<br>MSS5121-222ML_<br>2.2<br>0.050 120.0 1.86 2.10 2.30|||**typ**3**10% 20% 30%**<br> **(MHz) drop drop drop**<br>0.050 120.0 1.86 2.10 2.30|**20°C 40°C**<br>**rise**<br>2.1|**20°C 40°C**<br>**rise**<br>2.9|
|MSS5121-332ML_|MSS5121-332ML_<br>3.3|0.070|90.0 1.62 1.84 2.00|1.7|2.3|
|MSS5121-472ML_<br>MSS5121-562ML_<br>MSS5121-682ML_<br>MSS5121-822ML_|MSS5121-472ML_<br>4.7<br>MSS5121-562ML_<br>5.6<br>6.8<br>MSS5121-822ML_<br>8.2|0.095<br>0.100<br>0.110<br>0.135|80.0 1.38 1.54 1.66<br>73.0 1.28 1.42 1.54<br>65.0 1.10 1.28 1.38<br>55.0 1.06 1.22 1.32|1.4<br>1.3<br>1.2<br>1.1|1.9<br>1.8<br>1.6<br>1.5|
|MSS5121-103ML_|MSS5121-103ML_<br>10|0.160|47.0 0.98 1.08 1.18|0.99 1.3|0.99 1.3|
|MSS5121-123ML_|MSS5121-123ML_<br>12|0.190|41.0 0.87 0.99 1.05|0.91 1.2|0.91 1.2|
|MSS5121-153ML_<br>MSS5121-183ML_|MSS5121-153ML_<br>15<br>18|0.280<br>0.300|37.0 0.76 0.85 0.90<br>35.0 0.71 0.81 0.87|0.82 1.1<br>0.75 1.0|0.82 1.1<br>0.75 1.0|
|MSS5121-223ML_<br>MSS5121-273ML_|MSS5121-223ML_<br>22<br>MSS5121-273ML_<br>27|0.330<br>0.420|32.0 0.68 0.77 0.82<br>27.0 0.61 0.69 0.74|0.71 0.97<br>0.63 0.85|0.71 0.97<br>0.63 0.85|
|MSS5121-333ML_|MSS5121-333ML_<br>33|0.480|25.0 0.58 0.64 0.67|0.56 0.76|0.56 0.76|
|MSS5121-393ML_|MSS5121-393ML_<br>39|0.530|23.0 0.48 0.54 0.58|0.55 0.73|0.55 0.73|
|MSS5121-473ML_<br>MSS5121-563ML_<br>MSS5121-683ML_<br>MSS5121-823ML_|47<br>MSS5121-563ML_<br>56<br>MSS5121-683ML_<br>68<br>MSS5121-823ML_<br>82|0.750<br>0.860<br>1.00<br>1.20|22.0 0.44 0.51 0.54<br>19.0 0.40 0.46 0.49<br>18.0 0.37 0.42 0.46<br>15.0 0.35 0.40 0.42|0.46 0.63<br>0.44 0.60<br>0.41 0.56<br>0.35 0.47|0.46 0.63<br>0.44 0.60<br>0.41 0.56<br>0.35 0.47|
|MSS5121-104ML_|MSS5121-104ML_<br>100|1.40|13.5 0.28 0.32 0.35|0.33 0.44|0.33 0.44|
|MSS5121-124ML_<br>MSS5121-154ML_<br>MSS5121-184ML_<br>MSS5121-224ML_<br>MSS5121-274ML_<br>MSS5121-334ML_|120<br>MSS5121-154ML_<br>150<br>MSS5121-184ML_<br>180<br>MSS5121-224ML_<br>220<br>MSS5121-274ML_<br>270<br>330|1.60<br>2.10<br>2.31<br>3.10<br>3.50<br>4.00|12.0 0.26 0.30 0.32<br>9.0 0.26 0.29 0.31<br>8.5 0.21 0.25 0.27<br>7.5 0.21 0.24 0.25<br>7.0 0.18 0.20 0.22<br>6.5 0.17 0.19 0.20|0.31 0.42<br>0.29 0.38<br>0.25 0.34<br>0.22 0.29<br>0.20 0.27<br>0.19 0.26|0.31 0.42<br>0.29 0.38<br>0.25 0.34<br>0.22 0.29<br>0.20 0.27<br>0.19 0.26|
|MSS5121-394ML_|MSS5121-394ML_<br>390|5.00|5.8 0.15 0.17 0.19|0.15 0.21|0.15 0.21|



## 1. Please specify **termination** and **packaging** codes: 

**MSS5121-394MLC** 

**Termination: L** = RoHS compliant gold over nickel over phos bronze **Special order:** 

- **T** = RoHS tin-silver-copper (95.5/4/0.5) or **S** = non-RoHS tin-lead (63/37). 

**Packaging: C** = 7″ machine-ready reel. EIA-481 embossed plastic tape (600 parts per full reel). 

   - **B** = Less than full reel. In tape, but not machine ready. To have a leader and trailer added ($25 charge), use code letter C instead. 

   - **D** = 13″ machine-ready reel. EIA-481 embossed plastic tape. Factory order only, not stocked (2500 parts per full reel). 

2. Inductance measured at 100 kHz, 0.1 Vrms, 0 Adc using Coilcraft SMD -A fixture in an Agilent/HP 4284A impedance analyzer. 

3. SRF measured using an Agilent/HP 8753D network analyzer and a Coilcraft SMD -D test fixture. 

4. DC current at which the inductance drops the specified amount from its value without current. 

5. Current that causes the specified temperature rise for 25°C ambient. 

6. Electrical specifications at 25°C. 

- Refer to Doc 362 “Soldering Surface Mount Components” before soldering. 

## Document 495-1 Revised 12/09/11 

© Coilcraft Inc. 2012 This product may not be used in medical of high risk applications without prior Coilcraft approval. Specification subject to change without notice. Please check out web site for latest information. 

**US** +1-847-639-6400   sales@coilcraft.com **UK** +44-1236-730595   sales@coilcraft-europe.com **Taiwan** +886-2-2264 3646   sales@coilcraft.com.tw **China** +86-21-6218 8074   sales@coilcraft.com.cn **Singapore** + 65-6484 8412   sales@coilcraft.com.sg 

Document 495-2 

**==> picture [50 x 114] intentionally omitted <==**

## **Shielded Power Inductors – MSS5121 Series** 

## **Typical L vs Current** 

## **Typical L vs Frequency** 

**==> picture [500 x 459] intentionally omitted <==**

**----- Start of picture text -----**<br>
1000 1000<br>390 µH<br>390 µH<br>120 µH<br>100 120 µH 100<br>47 µH 47 µH<br>18 µH<br>18 µH<br>10 10<br>6.8 µH<br>6.8 µH<br>2.2 µH<br>2.2 µH<br>1 1<br>0.1 0.1<br>0.01 0.1 1 10 0.1 1 10<br>Current (A) Frequency (MHz)<br>0.200*<br>Current Derating 5,1<br>120 * [Dimensions are of the case not]<br>including the termination. For<br>110 * maximum overall dimensions<br>0.200<br>100 5,1 including the termination, add<br>123 0.035 in / 0,9 mm.<br>90<br>80<br>70<br>60<br>0.083<br>50 2,2 max<br>40<br>30 0.181 0.200<br>20 4,6 5,08<br>Isat<br>10 0.069<br>0 Irms 1,74<br>-40 -20 0 20 40 60 80 100 120 140 0.200<br>0.063 0.181<br>5,08<br>Ambient temperature (°C) 1,6 4,6<br>0.159<br>∅<br>4,05<br>Recommended<br>Land Pattern<br>Dimensions are in [inches ]<br>mm<br>25°C<br>Inductance (µH) Inductance (µH)<br>Percent of rated current<br>**----- End of picture text -----**<br>


**==> picture [243 x 174] intentionally omitted <==**

**----- Start of picture text -----**<br>
1000<br>390 µH<br>120 µH<br>100<br>47 µH<br>18 µH<br>10<br>6.8 µH<br>2.2 µH<br>1<br>0.1<br>0.1 1 10 100<br>Frequency (MHz)<br>Inductance (µH)<br>**----- End of picture text -----**<br>


Document 495-2 Revised 12/09/11 

**==> picture [117 x 44] intentionally omitted <==**

**US** +1-847-639-6400   sales@coilcraft.com **UK** +44-1236-730595   sales@coilcraft-europe.com **Taiwan** +886-2-2264 3646   sales@coilcraft.com.tw **China** +86-21-6218 8074   sales@coilcraft.com.cn **Singapore** + 65-6484 8412   sales@coilcraft.com.sg 

© Coilcraft Inc. 2012 This product may not be used in medical of high risk applications without prior Coilcraft approval. Specification subject to change without notice. Please check out web site for latest information.

Updated at March 10, 2026

Coilcraft is a globally recognized leader in the design and manufacture of high-performance magnetic components. Renowned for its engineering excellence, reliable delivery, and stringent quality standards, the company provides essential solutions for a wide array of demanding applications, including signal processing, RF, power management, and timing circuits. Our comprehensive portfolio of Coilcraft components is centered on their industry-leading inductor technologies. This encompasses a vast selection of high-efficiency power inductors designed to optimize modern power supply architectures, alongside precision RF inductors engineered to deliver exceptional stability and performance in high-frequency communications and wireless applications. To support complete electromagnetic compatibility and comprehensive circuit design, we also offer a variety of Coilcraft's specialized magnetic solutions. This includes robust common mode chokes and filters for effective EMC and RFI suppression, current sensing transformers, and a selection of inductor kits and assortments that provide design engineers with versatile options for rapid prototyping and development.

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