Document 471-1
Shielded Power Inductors – MSS1246
• 12 × 12 mm footprint; 4.6 mm high shielded inductors
• Very low DCR and excellent current handling
Designer’s Kit C410
contains 3 each of all values.
Core material
Ferrite
Terminations
RoHS compliant matte tin over nickel over phos bronze.
Other terminations available at additional cost.
Weight:
2.3 g – 2.5 g
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
200/7″ reel; 800/13″ reel; Plastic tape: 24 mm wide,
0.35 mm thick, 16 mm pocket spacing, 4.7 mm pocket depth
PCB washing
Tested with pure water or alcohol only. For other
solvents, see Doc787_PCB_Washing.pdf.
DCR
3
(mOhms)
typ
max
Isat
(A)
5
Irms
(A)
6
SRF
typ
4
10% 20% 30% 20°C 40°C
(MHz) drop drop drop rise rise
18.4 19.4
8.52 9.42
7.64 8.66
6.52 7.34
5.98 6.80
5.72 6.44
5.02 5.76
4.58 5.24
4.28 4.78
3.76 4.24
3.46 3.92
3.14 3.54
2.72 3.14
2.66 3.06
2.34 2.64
2.10 2.40
1.80 2.06
1.64 1.86
1.62 1.82
1.36 1.58
1.34 1.48
1.18 1.30
1.04 1.18
1.00 1.10
0.91 1.00
0.81 0.92
0.76 0.85
0.68 0.77
0.61 0.70
0.56 0.63
19.9
9.86
9.28
7.82
7.34
6.84
6.22
5.54
5.14
4.50
4.18
3.78
3.38
3.24
2.80
2.56
2.24
2.04
1.92
1.70
1.60
1.40
1.24
1.20
1.08
0.98
0.90
0.82
0.75
0.68
6.00
4.50
4.19
3.80
3.55
3.30
3.00
2.85
2.71
2.50
2.16
1.90
1.73
1.50
1.44
1.30
1.24
1.20
1.03
0.95
0.89
0.76
0.72
0.65
0.59
0.56
0.50
0.46
0.43
0.36
8.00
6.00
5.75
5.20
4.87
4.20
3.95
3.80
3.52
3.40
2.96
2.60
2.39
2.10
2.01
1.80
1.72
1.60
1.42
1.30
1.21
1.00
0.95
0.87
0.79
0.76
0.67
0.62
0.58
0.50
1. Please specify
termination
and
packaging
codes:
MSS1246-105KLC
Termination:L
=RoHS compliant matte tin 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 (200 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. Fac-
tory order only, not stocked
(800 parts per full reel).
2. Inductance measured at 100 kHz, 0.1 Vrms,
0 Adc using a Coilcraft SMD-A fixture in an
Agilent/HP 4263B LCR meter or equivalent.
3. DCR measured on a micro-ohmmeter and a
Coilcraft CCF858 test fixture.
4. SRF measured using an Agilent/HP 8753D
network analyzer and a Coilcraft SMD-D test
fixture.
5. DC current at which the inductance drops 10%
(max) from its value without current.
6. Current that causes the specified temperature rise
from 25°C ambient.
7. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount
Components” before soldering.
Part number
1
MSS1246-102ML_
MSS1246-472ML_
MSS1246-562ML_
MSS1246-682ML_
MSS1246-822ML_
MSS1246-103ML_
MSS1246-123ML_
MSS1246-153ML_
MSS1246-183ML_
MSS1246-223ML_
MSS1246-273ML_
MSS1246-333ML_
MSS1246-393ML_
MSS1246-473ML_
MSS1246-563ML_
MSS1246-683ML_
MSS1246-823ML_
MSS1246-104ML_
MSS1246-124KL_
MSS1246-154KL_
MSS1246-184KL_
MSS1246-224KL_
MSS1246-274KL_
MSS1246-334KL_
MSS1246-394KL_
MSS1246-474KL_
MSS1246-564KL_
MSS1246-684KL_
MSS1246-824KL_
MSS1246-105KL_
Inductance
2
(µH)
1.0 ±20%
5.84
6.60 100
4.7 ±20% 19.1
21.3
42
5.6 ±20% 22.1
24.6
37
6.8 ±20% 24.9
27.7
33
8.2 ±20% 27.4
30.5
31
10 ±20%
36.8
40.9
27
12 ±20%
38.9
43.3
24
15 ±20%
48.6
54.1
22
18 ±20%
51.0
56.7
19.0
22 ±20%
60.3
67.0
18.0
27 ±20%
67.5
75.0
16.0
33 ±20%
81.7
90.8
15.0
39 ±20%
95.2 105.8
13.3
47 ±20%
120.6 134.0
12.0
56 ±20%
133.8 148.7
10.6
68 ±20%
167.3 185.9
9.7
82 ±20%
188.5 209.5
8.8
100 ±20% 216.8 240.9
8.0
120 ±10% 287.2 319.2
7.2
150 ±10% 326.7 363.0
6.6
180 ±10% 379.5 421.7
5.9
220 ±10% 488.2 542.5
5.3
270 ±10% 560.1 622.4
4.7
330 ±10% 731.4 812.7
4.1
390 ±10% 813.7 904.2
3.8
470 ±10% 935.1 1039
3.5
560 ±10% 1193 1326
3.0
680 ±10% 1370 1523
2.8
820 ±10% 1590 1767
2.6
1000 ±10% 2090 2323
2.4
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 471-1
Revised 08/18/11
© 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 471-2
Shielded Power Inductors – MSS1246
Typical L vs Current
10000
Typical L vs Frequency
10000
1000 µH
470 µH
180 µH
100
68 µH
27 µH
10
10 µH
4.7 µH
Inductance (µH)
470 µH
100
180 µH
68 µH
27 µH
10
10 µH
4.7 µH
1
0.1
1
10
100
Inductance (µH)
1000
1000 µH
1000
1
0.01
0.1
1
10
Current (A)
Frequency (MHz)
0.472 ±0.012
12,0 ±0,30
Current Derating
120
110
Percent of rated current
100
90
80
70
60
50
40
0.472 ±0.012
12,0 ±0,30
123
X
Dash
number
Internal
code
Parts manufactured prior
to August 2011 may have
a different part marking.
0.181 ±0.008
*
4,6 ±0,20
25°C
30
20
10
0
Isat
Irms
-40
-20
0
20
Recommended
Land Pattern
0.217
5,5
0.138 ±0.016
3,5 ±0,40
0.157
4,0
0.335
8,5
0.197 ±0.008
5,0 ±0,20
40
60
80
100
120 140
Ambient temperature (°C)
0.197 ±0.016
5,0 ±0,40
*
For optional tin-lead and tin-silver-copper terminations,
Dimensions are in
inches
mm
dimensions are for the mounted part. Dimensions before
mounting can be an additional 0.012 inch (0,3 mm).
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 471-2
Revised 08/18/11
© 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.
