Document 540-1
SMT Power Inductors
–
MSS1246T
•ꢀDesignedꢀforꢀhighꢀambientꢀtemperatures
•ꢀMagneticꢀshieldingꢀallowsꢀhighꢀdensityꢀmounting.
Designer’s Kit C417 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 +125°C with Irms current, +125°C to
+165°C with derated current
Storage temperature Component: –40°C to +165°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 /
85ꢀ 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:
MSS1246T-105KLD
Termination:L =RoHS compliant matte tin over
nickel over phos bronze.
SRF
(mOhms)
Inductance2
(µH)
typ4 10% 20% 30% 20°C 40°C
Part number1
typ max (MHz) drop drop drop rise rise
MSS1246T-102ML_
MSS1246T-152ML_
MSS1246T-272ML_
MSS1246T-332ML_
MSS1246T-472ML_
1.0 20ꢀ
1.5 20ꢀ
2.7 20ꢀ
3.3 20ꢀ
4.7 20ꢀ
5.6
8.7
10.3
15.1
19.1
6.3 100
18.14 20.64 22.24 6.00 8.00
85.0 14.06 15.90 17.08 5.80 7.80
70.0 11.66 13.16 14.16 5.00 6.80
9.7
11.5
16.8
21.3
Special order:
T = RoHS tin-silver-copper
(95.5/4/0.5) or S = non-RoHS
tin-lead (63/37).
65.0
42.0
9.74 11.08 11.98 4.50 6.30
8.62 9.70 10.42 4.40 6.00
Packaging: C=7″ machine-ready reel. EIA-481
embossed plastic tape (200 parts
per full reel).
MSS1246T-562ML_
MSS1246T-682ML_
MSS1246T-822ML_
MSS1246T-103ML_ 10 20ꢀ
MSS1246T-123ML_ 12 20ꢀ
MSS1246T-153ML_ 15 20ꢀ
MSS1246T-183ML_ 18 20ꢀ
MSS1246T-223ML_ 22 20ꢀ
MSS1246T-273ML_ 27 20ꢀ
MSS1246T-333ML_ 33 20ꢀ
5.6 20ꢀ
6.8 20ꢀ
8.2 20ꢀ
22.1
24.9
27.4
36.8
38.9
48.6
51.0
60.3
67.5
81.7
24.6
27.7
30.5
40.9
43.3
54.1
56.7
67.0
75.0
90.8
37.0
33.0
31.0
27.0
24.0
22.0
19.0
18.0
16.0
15.0
7.62 8.74 9.44 3.95 5.75
7.38 8.36 9.00 3.70 5.20
6.84 7.70 8.32 3.35 4.67
5.88 6.66 7.18 2.85 3.90
5.34 6.04 6.52 2.69 3.65
4.68 5.36 5.78 2.50 3.40
4.32 4.92 5.32 2.41 3.19
3.84 4.34 4.75 2.30 3.14
3.54 4.02 4.32 2.06 2.86
3.24 3.66 3.96 1.90 2.60
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 (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 the
specified amount 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.
MSS1246T-393ML_ 39 20ꢀ
MSS1246T-473ML_ 47 20ꢀ
MSS1246T-563ML_ 56 20ꢀ
MSS1246T-683ML_ 68 20ꢀ
MSS1246T-823ML_ 82 20ꢀ
MSS1246T-104ML_ 100 20ꢀ
MSS1246T-124KL_ 120 10ꢀ
MSS1246T-154KL_ 150 10ꢀ
MSS1246T-184KL_ 180 10ꢀ
MSS1246T-224KL_ 220 10ꢀ
95.2 105.8
120.6 134.0
133.8 148.7
167.3 185.9
188.5 209.5
216.8 240.9
287.2 319.2
326.7 363.0
379.5 421.7
488.2 542.5
13.3
12.0
10.6
9.7
3.04 3.46 3.72 1.73 2.39
2.70 3.08 3.34 1.50 2.10
2.46 2.80 3.02 1.44 2.01
2.26 2.54 2.74 1.30 1.80
1.98 2.26 2.46 1.24 1.72
1.84 2.08 2.24 1.19 1.65
1.62 1.86 2.04 1.03 1.42
1.48 1.70 1.82 0.95 1.30
1.36 1.56 1.68 0.89 1.21
1.22 1.38 1.50 0.76 1.00
1.12 1.26 1.36 0.72 0.95
1.00 1.10 1.20 0.65 0.87
0.946 1.00 1.10 0.59 0.79
0.864 0.978 1.00 0.56 0.76
0.776 0.884 0.956 0.50 0.67
8.8
8.0
7.2
6.6
5.9
5.3
4.7
4.1
3.8
3.5
3.0
MSS1246T-274KL_ 270 10ꢀ
MSS1246T-334KL_ 330 10ꢀ
MSS1246T-394KL_ 390 10ꢀ
MSS1246T-474KL_ 470 10ꢀ
560.1 622.4
731.4 812.7
813.7 904.2
935.1 1039
MSS1246T-564KL_ 560 10ꢀ 1193 1326
MSS1246T-684KL_ 680 10ꢀ 1370 1523
MSS1246T-824KL_ 820 10ꢀ 1590 1767
MSS1246T-105KL_ 1000 10ꢀ 2090 2323
2.8
2.6
2.4
0.720 0.818 0.882 0.46 0.62
0.634 0.728 0.792 0.43 0.58
0.594 0.676 0.728 0.36 0.50
Document 540-1 Revised 08/18/11
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
© 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.
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