Document 471-1
SMT 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.
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
Only pure water or alcohol recommended
DCR
3
(mOhms)
typ
max
19.1
22.1
24.9
27.4
36.8
38.9
48.6
51.0
60.3
67.5
81.7
95.2
120.6
133.8
167.3
188.5
216.8
287.2
326.7
379.5
488.2
560.1
731.4
813.7
935.1
1193
1370
1590
2090
21.3
24.6
27.7
30.5
40.9
43.3
54.1
56.7
67.0
75.0
90.8
105.8
134.0
148.7
185.9
209.5
240.9
319.2
363.0
421.7
542.5
622.4
812.7
904.2
1039
1326
1523
1767
2323
Isat
(A)
5
Irms
(A)
6
SRF
typ
4
10% 20% 30% 20°C 40°C
(MHz) drop drop drop rise rise
42
37
33
31
27
24
22
19.0
18.0
16.0
15.0
13.3
12.0
10.6
9.7
8.8
8.0
7.2
6.6
5.9
5.3
4.7
4.1
3.8
3.5
3.0
2.8
2.6
2.4
8.52
7.64
6.52
5.98
5.72
5.02
4.58
4.28
3.76
3.46
3.14
2.72
2.66
2.34
2.10
1.80
1.64
1.62
1.36
1.34
1.18
1.04
1.00
0.91
0.81
0.76
0.68
0.61
0.56
9.42
8.66
7.34
6.80
6.44
5.76
5.24
4.78
4.24
3.92
3.54
3.14
3.06
2.64
2.40
2.06
1.86
1.82
1.58
1.48
1.30
1.18
1.10
1.00
0.92
0.85
0.77
0.70
0.63
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
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
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:
MSS1246-105MLC
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. Factory
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 Compo-
nents” before soldering.
Inductance
2
Part number
1
(µH)
MSS1246-472ML_
4.7 ±20%
MSS1246-562ML_
5.6 ±20%
MSS1246-682ML_
6.8 ±20%
MSS1246-822ML_
8.2 ±20%
MSS1246-103ML_
10 ±20%
MSS1246-123ML_
12 ±20%
MSS1246-153ML_
15 ±20%
MSS1246-183ML_
18 ±20%
MSS1246-223ML_
22 ±20%
MSS1246-273ML_
27 ±20%
MSS1246-333ML_
33 ±20%
MSS1246-393ML_
39 ±20%
MSS1246-473ML_
47 ±20%
MSS1246-563ML_
56 ±20%
MSS1246-683ML_
68 ±20%
MSS1246-823ML_
82 ±20%
MSS1246-104ML_ 100 ±20%
MSS1246-124KL_ 120 ±10%
MSS1246-154KL_ 150 ±10%
MSS1246-184KL_ 180 ±10%
MSS1246-224KL_ 220 ±10%
MSS1246-274KL_ 270 ±10%
MSS1246-334KL_ 330 ±10%
MSS1246-394KL_ 390 ±10%
MSS1246-474KL_ 470 ±10%
MSS1246-564KL_ 560 ±10%
MSS1246-684KL_ 680 ±10%
MSS1246-824KL_ 820 ±10%
MSS1246-105KL_ 1000 ±10%
Specifications subject to change without notice.
Please check our website for latest information.
Document 471-1 Revised 10/15/08
© Coilcraft, Inc. 2009
Automotive Electronics
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