MSS1278T-473MLD Datasheet, PDF (1/2 Pages) Coilcraft lnc. – SMT Power Inductors - MSS1278T

Document 642-1
Shielded Power Inductors – MSS5131
• 5.1 × 5.1 mm footprint; 3.1mm high shielded inductors
• Low DCR and excellent current handling
Designer’s Kit C362 contains 3 of each value
Core material Ferrite
Core and winding loss  See www.coilcraft.com/coreloss
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  0.20 – 0.24 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  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
  _{Isat (A)}4 _{    Irms (A)}5
^  Inductance² max ^  typ³ 10% 20% 30% 20°C 40°C
  _{Part number}1 _{±20% (µH) (Ohms) (MHz) drop drop drop rise rise}
MSS5131-222ML_
MSS5131-332ML_
MSS5131-472ML_
MSS5131-562ML_
MSS5131-682ML_
2.2 0.020 65.0 1.76 2.08 2.30 2.00 3.30
3.3 0.028 60.0 1.33 1.58 1.73 1.60 2.90
4.7 0.038 48.0 1.08 1.32 1.42 1.40 2.50
5.6 0.042 44.0 1.00 1.20 1.30 1.30 2.30
6.8 0.050 42.0 0.98 1.14 1.24 1.20 2.16
MSS5131-822ML_ 8.2
MSS5131-103ML_ 10
MSS5131-123ML_ 12
MSS5131-153ML_ 15
MSS5131-183ML_ 18
0.058
0.070
0.080
0.100
0.120
40.0 0.90 1.04 1.18
38.0 0.85 0.98 1.13
35.0 0.72 0.85 0.94
32.0 0.67 0.78 0.86
26.0 0.61 0.72 0.79
1.10 2.00
1.00 1.90
0.97 1.60
0.94 1.50
0.89 1.40
MSS5131-223ML_ 22
MSS5131-273ML_ 27
MSS5131-333ML_ 33
MSS5131-393ML_ 39
MSS5131-473ML_ 47
0.145
0.161
0.200
0.215
0.270
22.0 0.54 0.64 0.70
19.0 0.48 0.56 0.62
18.0 0.44 0.52 0.58
17.0 0.42 0.50 0.55
16.0 0.38 0.46 0.51
0.87 1.30
0.85 1.20
0.80 1.10
0.74 1.00
0.71 0.95
MSS5131-563ML_ 56
MSS5131-683ML_ 68
MSS5131-823ML_ 82
MSS5131-104ML_ 100
MSS5131-124ML_ 120
0.280
0.368
0.420
0.580
0.610
15.0 0.34 0.42 0.47
12.5 0.31 0.38 0.42
12.0 0.27 0.32 0.35
11.5 0.26 0.30 0.33
11.0 0.23 0.27 0.30
0.70 0.90
0.66 0.85
0.62 0.80
0.55 0.69
0.51 0.62
MSS5131-154ML_ 150
MSS5131-184ML_ 180
MSS5131-224ML_ 220
MSS5131-274ML_ 270
MSS5131-334ML_ 330
0.820
1.00
1.10
1.43
1.58
10.0 0.21 0.26 0.28
9.0 0.19 0.23 0.25
8.0 0.18 0.21 0.23
7.5 0.15 0.18 0.20
6.8 0.13 0.17 0.19
0.47 0.58
0.43 0.54
0.39 0.50
0.35 0.45
0.32 0.42
MSS5131-394ML_ 390
1.80 5.4 0.12 0.15 0.16 0.30 0.38
1. Please specify termination and packaging codes:
MSS5131-394MLC
Termination:L = RoHS compliant matte tin over nickel
over phos bronze (current production)
or gold over nickel over phos bronze
(prior production).
Special order:
T = RoHS tin-silver-copper (95.5/4/0.5)
over gold over nickel over phos bronze
or S = non-RoHS tin-lead (63/37) over
gold over nickel over phos bronze.
Packaging: C= 7″ machine-ready reel  EIA-481 em-
bossed plastic tape (600 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 per reel per
full reel).
2. Inductance tested at 100 kHz, 0.1 Vrms, 0 Adc using an
Agilent/HP 4263B LCR meter or equivalent.
3. SRF measured using Agilent/HP 4191A or equilvalent.
4. DC current at which the inductance drops the specified
amount from its value without current.
5. Current that causes the specified temperature rise from
25°C ambient.
6. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components”
before soldering.
US [phone] [e-mail]
UK [phone] [e-mail]
Taiwan [phone] [e-mail]
China [phone] [e-mail]
Singapore + 65-6484 8412 [e-mail]
Document 642-1  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.