MSS5121-223MLC

Power Inductor (SMD), 22 µH, 970 mA, Shielded, 680 mA, MSS5121 Series

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Manufacturer: COILCRAFT
Product type: SMD Power Inductors
Inductance:22µH; RMS Current (Irms):970mA; Inductor Construction:Shielded; Saturation Current (Isat):680mA; Product Range:MSS5121 Series; Power Inductor Case:5.1mm x 5.1mm x 2.2mm;
SVHC: No SVHC (25-Jun-2025)
Inductance: 22µH
Product Range: MSS5121 Series
Product Width: 5.1mm
Product Height: 2.2mm
Product Length: 5.1mm
DC Resistance Max: 0.33ohm
RMS Current (Irms): 970mA
Power Inductor Case: 5.1mm x 5.1mm x 2.2mm
Inductance Tolerance: ± 20%
Inductor Construction: Shielded
Saturation Current (Isat): 680mA

Delivery and price
Units per pack	600
Price	0.834 €
Current stock	10+
Lead time	30 days

Datasheet

Web Sample Tools & Support page & buy software & FAQ 

Document 495-1 

AEC Q200 +85°C 

## **– 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 

**Core and winding loss** See www.coilcraft.com/coreloss **Terminations** RoHS compliant matte tin over nickel over phos bronze (current production) or gold over nickel over phos bronze (prior production). Other terminations available at additional cost. **Weight** 141 – 147 mg 

**Ambient temperature** –40°C to +85°C with (40°C rise) I rms current. **Maximum part temperature** +125°C (ambient + temp rise). Derating. **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) 

**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** Tested to MIL-STD-202 Method 215 plus an additional aqueous wash. See Doc787_PCB_Washing.pdf. 

|**DCR**<br> **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|**DCR**<br> **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|**DCR**<br> **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|**SRF**<br> **typ**3**10% 20% 30%**<br> **(MHz) dro**<br>0.050 120.0 1.86 2.10 2.30|**Isat(A)**4**Irms(A)**5<br>**10% 20% 30%**<br>**20°C 40°C**<br>**drop drop drop**<br>**rise**<br>**rise**<br>0.050 120.0 1.86 2.10 2.30<br>2.1<br>2.9<br>~~a~~|**Isat(A)**4**Irms(A)**5<br>**10% 20% 30%**<br>**20°C 40°C**<br>**drop drop drop**<br>**rise**<br>**rise**<br>0.050 120.0 1.86 2.10 2.30<br>2.1<br>2.9<br>~~a~~|**Isat(A)**4**Irms(A)**5<br>**10% 20% 30%**<br>**20°C 40°C**<br>**drop drop drop**<br>**rise**<br>**rise**<br>0.050 120.0 1.86 2.10 2.30<br>2.1<br>2.9<br>~~a~~|1. Please specify**termination**and**packaging**codes:<br>**MSS5121-394MLC**<br>**Termination: L**= RoHS compliant matte tin over nickel<br>over phos bronze or gold over nickel<br>~~——!~~|1. Please specify**termination**and**packaging**codes:<br>**MSS5121-394MLC**<br>**Termination: L**= RoHS compliant matte tin over nickel<br>over phos bronze or gold over nickel<br>~~——!~~|1. Please specify**termination**and**packaging**codes:<br>**MSS5121-394MLC**<br>**Termination: L**= RoHS compliant matte tin over nickel<br>over phos bronze or gold over nickel<br>~~——!~~|1. Please specify**termination**and**packaging**codes:<br>**MSS5121-394MLC**<br>**Termination: L**= RoHS compliant matte tin over nickel<br>over phos bronze or gold over nickel<br>~~——!~~|
|---|---|---|---|---|---|---|---|---|---|---|
|MSS5121-332ML_|MSS5121-332ML_<br>3.3|0.070|90.0 1.62 1.84 2.00|90.0 1.62 1.84 2.00|1.7|2.3|over phos bronze.||||
|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|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|**Special order:**<br>**T**= RoHS tin-silver-copper (95.5/4/0.5)<br>or**S**= non-RoHS tin-lead (63/37).<br>**Packaging: C**= 7″ machine-ready reel. EIA-481<br>embossed plastic tape (600 parts||||
|MSS5121-103ML_|MSS5121-103ML_<br>10|0.160|47.0 0.98 1.08 1.18|47.0 0.98 1.08 1.18|0.99 1.3|0.99 1.3|per full reel). Quantities less than full||per full reel). Quantities less than full||
|MSS5121-123ML_<br>MSS5121-153ML_<br>MSS5121-183ML_|MSS5121-123ML_<br>12<br>MSS5121-153ML_<br>15<br>18|0.190<br>0.280<br>0.300|41.0 0.87 0.99 1.05<br>37.0 0.76 0.85 0.90<br>35.0 0.71 0.81 0.87|41.0 0.87 0.99 1.05<br>37.0 0.76 0.85 0.90<br>35.0 0.71 0.81 0.87|0.91 1.2<br>0.82 1.1<br>0.75 1.0|0.91 1.2<br>0.82 1.1<br>0.75 1.0|reel available: in tape (not machine<br>ready) or with leader and trailer ($25<br>charge).<br>**B**= Less than full reel. In an effort to||||
|MSS5121-223ML_|MSS5121-223ML_<br>22|0.330|32.0 0.68 0.77 0.82|32.0 0.68 0.77 0.82|0.71 0.97|0.71 0.97|simplify our part numbering system,||||
|MSS5121-273ML_|MSS5121-273ML_<br>27|0.420|27.0 0.61 0.69 0.74|27.0 0.61 0.69 0.74|0.63 0.85|0.63 0.85|Coilcraft is eliminating the need for||||
|MSS5121-333ML_<br>MSS5121-393ML_<br>MSS5121-473ML_<br>MSS5121-563ML_|MSS5121-333ML_<br>33<br>MSS5121-393ML_<br>39<br>47<br>MSS5121-563ML_<br>56|0.480<br>0.530<br>0.750<br>0.860|25.0 0.58 0.64 0.67<br>23.0 0.48 0.54 0.58<br>22.0 0.44 0.51 0.54<br>19.0 0.40 0.46 0.49|25.0 0.58 0.64 0.67<br>23.0 0.48 0.54 0.58<br>22.0 0.44 0.51 0.54<br>19.0 0.40 0.46 0.49|0.56 0.76<br>0.55 0.73<br>0.46 0.63<br>0.44 0.60|0.56 0.76<br>0.55 0.73<br>0.46 0.63<br>0.44 0.60|multiple packaging codes. When<br>ordering, simply change the last letter<br>of your part number from B to C.<br>**D**= 13″ machine-ready reel. EIA-481 em-<br>bossed plastic tape. Factory order only,||||
|MSS5121-683ML_|MSS5121-683ML_<br>68|1.00|18.0 0.37 0.42 0.46|18.0 0.37 0.42 0.46|0.41 0.56|0.41 0.56|not stocked (2500 parts per full reel).|not stocked (2500 parts per full reel).|||
|MSS5121-823ML_|MSS5121-823ML_<br>82|1.20|15.0 0.35 0.40 0.42|15.0 0.35 0.40 0.42|0.35 0.47|0.35 0.47|2. Inductance measured at 100 kHz, 0.1 Vrms, 0 Adc|2. Inductance measured at 100 kHz, 0.1 Vrms, 0 Adc||2. Inductance measured at 100 kHz, 0.1 Vrms, 0 Adc|
|MSS5121-104ML_<br>MSS5121-124ML_<br>MSS5121-154ML_<br>MSS5121-184ML_<br>MSS5121-224ML_|MSS5121-104ML_<br>100<br>120<br>MSS5121-154ML_<br>150<br>MSS5121-184ML_<br>180<br>MSS5121-224ML_<br>220|1.40<br>1.60<br>2.10<br>2.31<br>3.10|13.5 0.28 0.32 0.35<br>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|13.5 0.28 0.32 0.35<br>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|0.33 0.44<br>0.31 0.42<br>0.29 0.38<br>0.25 0.34<br>0.22 0.29|0.33 0.44<br>0.31 0.42<br>0.29 0.38<br>0.25 0.34<br>0.22 0.29|using Coilcraft SMD -A fixture in an Agilent/HP 4284A<br>impedance analyzer.<br>3. SRF measured using an Agilent/HP 8753D network<br>analyzer and a Coilcraft SMD -D test fixture.<br>4. DC current at 25°C that causes the specified induc-<br>tance drop from its value without current.||||
|MSS5121-274ML_|MSS5121-274ML_<br>270|3.50|7.0 0.18 0.20 0.22|7.0 0.18 0.20 0.22|0.20 0.27|0.20 0.27|Click for temperature derating information.||||
|MSS5121-334ML_|330|4.00|6.5 0.17 0.19 0.20|6.5 0.17 0.19 0.20|0.19 0.26|0.19 0.26|5. Current that causes the specified temperature rise from||||
|MSS5121-394ML_|MSS5121-394ML_<br>390|5.00|5.8 0.15 0.17 0.19|5.8 0.15 0.17 0.19|0.15 0.21|0.15 0.21|25°C ambient. This information is for reference only and<br>does not represent absolute maximum ratings.||||



**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). Quantities less than full reel available: in tape (not machine ready) or with leader and trailer ($25 charge). 

   - **B** = Less than full reel. In an effort to simplify our part numbering system, Coilcraft is eliminating the need for multiple packaging codes. When ordering, simply change the last letter of your part number from B to C. 

5. Current that causes the specified temperature rise from 25°C ambient. This information is for reference only and does not represent absolute maximum ratings. Click for temperature derating information. 

6. Electrical specifications at 25°C. Refer to Doc 362 “Soldering Surface Mount Components” before soldering. 

**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 495-1 Revised 01/16/22 

© Coilcraft Inc. 2022 

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

Document 495-2 

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

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**----- Start of picture text -----**<br>
AEC<br>Q200 +85°C<br>**----- End of picture text -----**<br>


## **Typical L vs Current** 

## **Typical L vs Frequency** 

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**----- Start of picture text -----**<br>
1000 1000<br>= —_ =] SS = Se<br>LSSSTS A A OE GS A A GS SS GS A OS SS SS S| 390 µH TS AS ASSSGR A<br>—— LS 390 µH ttt —| | | ttt SSS SSS SSSaSaass<br>— ooo Ge po ee ee<br>120 µH<br>100 _-——[eeSSSS— SS TS SS MS 120 µH |eee 47 µH —————_————ooLS eeSSee A === 100 |_—S=======__—= E eePH e SS | 47 µH ==.EeaeEA _---—_—_——=====AEEa<br>po rr ee ee ee a — a<br>a a 18 µH<br>10 n e 18 µH 10 | TTT ne<br>SSE SSS _——— 6.8 µH I+} ff<br>pr eeeeeeeeeeeeeeeeeeE eee EE eee 6.8 µH a pe eee eeeeeeeeeE— |<br>poSS SD ON ON ND A GO a OS OO DGGO<br>eS ee a OO | 2.2 µH ee ee<br>2.2 µH LT ee<br>1 FtSSS [TT] EE eeeTU 1 | E E eeE<br>ee cee eee ee ee ee ee ee ee ee ee oe ee ee eee<br>SSA A OS OS SS ES GO SG GG OO eS SS A EG GG OCS CC OO<br>Poe Poee<br>0.1 0.1<br>0.01 0.1 1 10 0.1 1 10 100<br>Current (A) Frequency (MHz)<br>Inductance (µH) Inductance (µH)<br>**----- End of picture text -----**<br>


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0.200*<br>5,1<br>a — >| * [Dimensions are of the case not]<br>including the termination. For<br>* maximum overall dimensions<br>0.200<br>5,1 including the termination, add<br>123 0.035 in / 0,9 mm.<br>Dash<br>number<br>———_<br>0.083<br>max<br>2,2<br>0.181 0.200<br>4,6 5,08<br>0.069<br>Seeetetey Neeseseeoy y —_ 1,74 0.200<br>0.063 0.181<br>5,08<br>1,6 4,6<br>Ba a 0.159<br>∅<br>4,05<br>Recommended<br>Land Pattern<br>Dimensions are in [inches ]<br>mm<br>**----- End of picture text -----**<br>


Document 495-2 Revised 01/16/22 

**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. 2022 This product may not be used in medical or high risk applications without prior Coilcraft approval. Specification subject to change without notice. Please check 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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