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
DCR3
Isat (A)5
Irms (A)6
1. Please specify termination and packaging codes:
SRF
(mOhms)
typ
Inductance2
(µH)
typ4 10% 20% 30% 20°C 40°C
(MHz) drop drop drop rise rise
MSS1246-105MLC
Partnumber1
max
Termination: L =RoHS compliant matte tin over
nickel over phos bronze.
MSS1246-472ML_
MSS1246-562ML_
MSS1246-682ML_
MSS1246-822ML_
MSS1246-103ML_
4.7±20%
5.6±20%
6.8±20%
8.2±20%
10±20%
19.1
22.1
24.9
27.4
36.8
21.3
42
37
33
31
27
8.52 9.42 9.86 4.50 6.00
7.64 8.66 9.28 4.19 5.75
6.52 7.34 7.82 3.80 5.20
5.98 6.80 7.34 3.55 4.87
5.72 6.44 6.84 3.30 4.20
24.6
27.7
30.5
40.9
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
MSS1246-123ML_
MSS1246-153ML_
MSS1246-183ML_
MSS1246-223ML_
MSS1246-273ML_
12±20%
15±20%
18±20%
22±20%
27±20%
38.9
48.6
51.0
60.3
67.5
43.3
54.1
56.7
67.0
75.0
24
22
19.0
18.0
16.0
5.02 5.76 6.22 3.00 3.95
4.58 5.24 5.54 2.85 3.80
4.28 4.78 5.14 2.71 3.52
3.76 4.24 4.50 2.50 3.40
3.46 3.92 4.18 2.16 2.96
(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
MSS1246-333ML_
MSS1246-393ML_
MSS1246-473ML_
MSS1246-563ML_
MSS1246-683ML_
33±20%
39±20%
47±20%
56±20%
68±20%
81.7
90.8
15.0
13.3
12.0
10.6
9.7
3.14 3.54 3.78 1.90 2.60
2.72 3.14 3.38 1.73 2.39
2.66 3.06 3.24 1.50 2.10
2.34 2.64 2.80 1.44 2.01
2.10 2.40 2.56 1.30 1.80
95.2 105.8
120.6 134.0
133.8 148.7
167.3 185.9
(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.
MSS1246-823ML_
82±20%
188.5 209.5
216.8 240.9
287.2 319.2
326.7 363.0
379.5 421.7
8.8
8.0
7.2
6.6
5.9
1.80 2.06 2.24 1.24 1.72
1.64 1.86 2.04 1.20 1.60
1.62 1.82 1.92 1.03 1.42
1.36 1.58 1.70 0.95 1.30
1.34 1.48 1.60 0.89 1.21
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%
488.2 542.5
560.1 622.4
731.4 812.7
813.7 904.2
935.1 1039
5.3
4.7
4.1
3.8
3.5
1.18 1.30 1.40 0.76 1.00
1.04 1.18 1.24 0.72 0.95
1.00 1.10 1.20 0.65 0.87
0.91 1.00 1.08 0.59 0.79
0.81 0.92 0.98 0.56 0.76
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.
MSS1246-564KL_ 560±10% 1193 1326
MSS1246-684KL_ 680±10% 1370 1523
MSS1246-824KL_ 820±10% 1590 1767
MSS1246-105KL_ 1000±10% 2090 2323
3.0
2.8
2.6
2.4
0.76 0.85 0.90 0.50 0.67
0.68 0.77 0.82 0.46 0.62
0.61 0.70 0.75 0.43 0.58
0.56 0.63 0.68 0.36 0.50
Specifications subject to change without notice.
Please check our website for latest information.
Document 471-1 Revised 10/15/08
© Coilcraft, Inc. 2009