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China
Singapore
+1-847-639-6400 sales@coilcraft.com
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+86-21-6218 8074 sales@coilcraft.com.cn
+ 65-6484 8412 sales@coilcraft.com.sg
© Coilcraft Inc. 2017
This product may not be used in medical or high
risk applications without prior Coilcraft appr
oval.
Specification subject to change without notice.
Please check web site for latest infor
mation.
Shielded Power Inductors
MSS5121
Document 495-1
Document 495-1 Revised 09/02/15
DCR SRF Isat (A)4 Irms (A)5
Inductance2 max typ3 10% 20% 30% 20°C 40°C
Part number1 ±20% (µH) (Ohms) (MHz) drop drop drop rise rise
MSS5121-222ML_ 2.2 0.050 120.0 1.86 2.10 2.30 2.1 2.9
MSS5121-332ML_ 3.3 0.070 90.0 1.62 1.84 2.00 1.7 2.3
MSS5121-472ML_ 4.7 0.095 80.0 1.38 1.54 1.66 1.4 1.9
MSS5121-562ML_ 5.6 0.100 73.0 1.28 1.42 1.54 1.3 1.8
MSS5121-682ML_ 6.8 0.110 65.0 1.10 1.28 1.38 1.2 1.6
MSS5121-822ML_ 8.2 0.135 55.0 1.06 1.22 1.32 1.1 1.5
MSS5121-103ML_ 10 0.160 47.0 0.98 1.08 1.18 0.99 1.3
MSS5121-123ML_ 12 0.190 41.0 0.87 0.99 1.05 0.91 1.2
MSS5121-153ML_ 15 0.280 37.0 0.76 0.85 0.90 0.82 1.1
MSS5121-183ML_ 18 0.300 35.0 0.71 0.81 0.87 0.75 1.0
MSS5121-223ML_ 22 0.330 32.0 0.68 0.77 0.82 0.71 0.97
MSS5121-273ML_ 27 0.420 27.0 0.61 0.69 0.74 0.63 0.85
MSS5121-333ML_ 33 0.480 25.0 0.58 0.64 0.67 0.56 0.76
MSS5121-393ML_ 39 0.530 23.0 0.48 0.54 0.58 0.55 0.73
MSS5121-473ML_ 47 0.750 22.0 0.44 0.51 0.54 0.46 0.63
MSS5121-563ML_ 56 0.860 19.0 0.40 0.46 0.49 0.44 0.60
MSS5121-683ML_ 68 1.00 18.0 0.37 0.42 0.46 0.41 0.56
MSS5121-823ML_ 82 1.20 15.0 0.35 0.40 0.42 0.35 0.47
MSS5121-104ML_ 100 1.40 13.5 0.28 0.32 0.35 0.33 0.44
MSS5121-124ML_ 120 1.60 12.0 0.26 0.30 0.32 0.31 0.42
MSS5121-154ML_ 150 2.10 9.0 0.26 0.29 0.31 0.29 0.38
MSS5121-184ML_ 180 2.31 8.5 0.21 0.25 0.27 0.25 0.34
MSS5121-224ML_ 220 3.10 7.5 0.21 0.24 0.25 0.22 0.29
MSS5121-274ML_ 270 3.50 7.0 0.18 0.20 0.22 0.20 0.27
MSS5121-334ML_ 330 4.00 6.5 0.17 0.19 0.20 0.19 0.26
MSS5121-394ML_ 390 5.00 5.8 0.15 0.17 0.19 0.15 0.21
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) Irms 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)
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 Tested to MIL-STD-202 Method 215 plus an additional
aqueous wash. See Doc787_PCB_Washing.pdf.
1. Please specify termination and packaging codes:
MSS5121-394MLC
Termination: L = RoHS compliant matte tin over nickel
over phos bronze or 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 25°C that causes the specified induc-
tance drop from its value without current.
Click for temperature derating information.
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.
Low profile shielded power inductors
Low DCR, excellent current handling and low cost
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US
UK
Taiwan
China
Singapore
+1-847-639-6400 sales@coilcraft.com
+44-1236-730595 sales@coilcraft-europe.com
+886-2-2264 3646 sales@coilcraft.com.tw
+86-21-6218 8074 sales@coilcraft.com.cn
+ 65-6484 8412 sales@coilcraft.com.sg
© Coilcraft Inc. 2017
This product may not be used in medical or high
risk applications without prior Coilcraft appr
oval.
Specification subject to change without notice.
Please check web site for latest infor
mation.
Shielded Power Inductors – MSS5121 Series
Document 495-2
Typical L vs Current Typical L vs Frequency
0.1
1
10
100
1000
0.01 0.1 101
Current (A)
Inductance (µH)
390 µH
47 µH
2.2 µH
6.8 µH
120 µH
18 µH
0.1
1
10
100
1000
0.1 110010
Frequency (MHz)
Inductance (µH)
390 µH
47 µH
2.2 µH
6.8 µH
120 µH
18 µH
Dimensions are in inches
mm
123
0.083
2,2
0.063
1,6
max
0.181
4,6
0.181
4,6
0.200
5,1
0.200
5,1
*Dimensions are of the case not
including the termination. For
maximum overall dimensions
including the termination, add
0.035 in / 0,9 mm.
*
*
Recommended
Land Pattern
0.069
1,74
0.200
5,08
0.200
5,08
0.159
4,05
Dash
number
Document 495-2 Revised 09/02/15
Mouser Electronics
Authorized Distributor
Click to View Pricing, Inventory, Delivery & Lifecycle Information:
Coilcraft:
MSS5121-332MLB MSS5121-563MLB MSS5121-682MLB MSS5121-822MLC MSS5121-183MLB MSS5121-
562MLC MSS5121-154MLB MSS5121-184MLB MSS5121-184MLC MSS5121-472MLC MSS5121-682MLC
MSS5121-123MLC MSS5121-563MLC MSS5121-274MLB MSS5121-153MLB MSS5121-393MLB MSS5121-
222MLC MSS5121-223MLC MSS5121-273MLC MSS5121-394MLB MSS5121-183MLC MSS5121-274MLC
MSS5121-103MLB MSS5121-473MLB MSS5121-683MLB MSS5121-823MLB MSS5121-124MLB MSS5121-
562MLB MSS5121-273MLB MSS5121-334MLC MSS5121-333MLB MSS5121-104MLB MSS5121-123MLB
MSS5121-393MLC MSS5121-103MLC MSS5121-683MLC MSS5121-124MLC MSS5121-222MLB MSS5121-
472MLB MSS5121-223MLB MSS5121-224MLB MSS5121-334MLB MSS5121-822MLB MSS5121-823MLC
MSS5121-333MLC MSS5121-104MLC MSS5121-332MLC MSS5121-154MLC MSS5121-394MLC MSS5121-
224MLC MSS5121-153MLC MSS5121-473MLC