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 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
Irms
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
Tested with pure water or alcohol only. For other solvents,
see Doc787_PCB_Washing.pdf.
DCR SRF
Inductance
2
max
typ
3
Part number
1
±20% (µH) (Ohms) (MHz)
MSS5121-222ML_
2.2
0.050 120.0
MSS5121-332ML_
3.3
0.070 90.0
MSS5121-472ML_
4.7
0.095 80.0
MSS5121-562ML_
5.6
0.100 73.0
MSS5121-682ML_
6.8
0.110 65.0
MSS5121-822ML_
8.2
0.135 55.0
MSS5121-103ML_
10
0.160 47.0
MSS5121-123ML_
12
0.190 41.0
MSS5121-153ML_
15
0.280 37.0
MSS5121-183ML_
18
0.300 35.0
MSS5121-223ML_
22
0.330 32.0
MSS5121-273ML_
27
0.420 27.0
MSS5121-333ML_
33
0.480 25.0
MSS5121-393ML_
39
0.530 23.0
MSS5121-473ML_
47
0.750 22.0
MSS5121-563ML_
56
0.860 19.0
MSS5121-683ML_
68
1.00
18.0
MSS5121-823ML_
82
1.20
15.0
MSS5121-104ML_ 100
1.40
13.5
MSS5121-124ML_ 120
1.60
12.0
MSS5121-154ML_ 150
2.10
9.0
MSS5121-184ML_ 180
2.31
8.5
MSS5121-224ML_ 220
3.10
7.5
MSS5121-274ML_ 270
3.50
7.0
MSS5121-334ML_ 330
4.00
6.5
MSS5121-394ML_ 390
5.00
5.8
Isat
(A)
4
10% 20% 30%
drop drop drop
1.86 2.10 2.30
1.62 1.84 2.00
1.38 1.54 1.66
1.28 1.42 1.54
1.10 1.28 1.38
1.06 1.22 1.32
0.98 1.08 1.18
0.87 0.99 1.05
0.76 0.85 0.90
0.71 0.81 0.87
0.68 0.77 0.82
0.61 0.69 0.74
0.58 0.64 0.67
0.48 0.54 0.58
0.44 0.51 0.54
0.40 0.46 0.49
0.37 0.42 0.46
0.35 0.40 0.42
0.28 0.32 0.35
0.26 0.30 0.32
0.26 0.29 0.31
0.21 0.25 0.27
0.21 0.24 0.25
0.18 0.20 0.22
0.17 0.19 0.20
0.15 0.17 0.19
Irms
(A)
5
20°C 40°C
rise rise
2.1
2.9
1.7
2.3
1.4
1.9
1.3
1.8
1.2
1.6
1.1
1.5
0.99 1.3
0.91 1.2
0.82 1.1
0.75 1.0
0.71 0.97
0.63 0.85
0.56 0.76
0.55 0.73
0.46 0.63
0.44 0.60
0.41 0.56
0.35 0.47
0.33 0.44
0.31 0.42
0.29 0.38
0.25 0.34
0.22 0.29
0.20 0.27
0.19 0.26
0.15 0.21
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 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.
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 03/01/12
© Coilcraft Inc. 2013
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
Typical L vs Current
1000
390 µH
120 µH
Typical L vs Frequency
1000
390 µH
Inductance (µH)
Inductance (µH)
100
120 µH
47 µH
100
47 µH
18 µH
10
18 µH
6.8 µH
2.2 µH
10
6.8 µH
2.2 µH
1
1
0.1
0.01
0.1
1
10
0.1
0.1
1
10
100
Current (A)
Frequency (MHz)
Current Derating
120
110
0.200
*
5,1
*
Dimensions are of the case not
Percent of rated current
100
90
80
70
60
50
40
123
0.200
*
5,1
including the termination. For
maximum overall dimensions
including the termination, add
0.035 in / 0,9 mm.
0.083
max
2,2
25°C
30
20
10
0
Isat
Irms
-40
-20
0
20
0.181
4,6
0.069
1,74
0.200
5,08
40
60
80
100
120 140
Ambient temperature (°C)
0.063 0.181
1,6
4,6
0.159
∅
4,05
0.200
5,08
Dimensions are in
inches
mm
Recommended
Land Pattern
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
Revised 03/01/12
© Coilcraft Inc. 2013
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.
