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Document 380-1
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SMT Power Inductor ME3220
Miniature power inductor: 2.5 3.2 base 2.0 mm tall
Specified by NSC for their LM2830 Buck Converter
Designers Kit C386 contains samples of all values
Core material Ferrite
Core and winding loss See www.coilcraft.com/coreloss
Terminations RoHS tin-silver over tin over nickel over silver. Other
terminations available at additional cost.
Weight 56 65 mg
Ambient temperature 40C to +85C with (40C rise) Irms current.
Maximum part temperature +125C (ambient + temp rise). Derating.
Storage temperature Component: 40C to +125C.
Tape and reel packaging: 40C to +80C
Resistance to soldering heat Max three 40 second reflows at
+260C, parts cooled to room temperature between cycles
Moisture Sensitivity Level (MSL) 1 (unlimited floor life at <30C /
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 2000/7reel; 7000/13 reel Plastic tape: 12 mm wide,
0.25 mm thick, 4 mm pocket spacing, 2.25 mm pocket depth
PCB washing Tested to MIL-STD-202 Method 215 plus an additional
aqueous wash. See Doc787_PCB_Washing.pdf.
5 6
1. Please specify termination and packaging codes:
Isat (A) Irms (A)
DCR SRF
2 3 4
Inductance max typ 10% 20% 30% 20C 40C
ME3220-104KLC
1
Part number (H) (Ohms) (MHz) drop drop drop rise rise
Termination: L = RoHS tin-silver over tin over nickel
ME3220-102ML_ 1.0 20% 0.058 170.7 2.7 3.0 3.2 2.0 2.6
over silver.
ME3220-152ML_ 1.5 20% 0.068 138.0 2.2 2.5 2.7 1.6 2.2
Special order:
T = RoHS tin-silver-copper (95.5/4/0.5)
ME3220-222ML_ 2.2 20% 0.104 92.6 1.8 2.1 2.2 1.5 2.0
or S = non-RoHS tin-lead (63/37).
ME3220-332ML_ 3.3 20% 0.138 75.6 1.5 1.6 1.7 1.4 1.6
Packaging: C = 7 machine-ready reel. EIA-481
ME3220-472ML_ 4.7 20% 0.190 58.2 1.2 1.4 1.5 1.0 1.3
embossed plastic tape (2000 parts
ME3220-562ML_ 5.6 20% 0.200 52.5 1.1 1.3 1.4 1.0 1.3
per full reel).
ME3220-682ML_ 6.8 20% 0.270 46.2 1.0 1.1 1.2 0.88 1.1
B = Less than full reel. In tape, but not
ME3220-822ML_ 8.2 20% 0.290 45.2 0.98 1.0 1.1 0.80 1.0 machine ready. To have a leader and
trailer added ($25 charge), use code
ME3220-103KL_ 10 10% 0.434 39.9 0.78 1.0 1.1 0.63 0.87
letter C instead.
ME3220-123KL_ 12 10% 0.470 37.5 0.76 0.88 0.98 0.61 0.84
D = 13 machine-ready reel. EIA-481
ME3220-153KL_ 15 10% 0.520 32.5 0.70 0.80 0.90 0.58 0.83
embossed plastic tape (7000 parts
ME3220-183KL_ 18 10% 0.696 31.7 0.66 0.75 0.80 0.49 0.70
per full reel).
ME3220-223KL_ 22 10% 0.787 29.4 0.59 0.67 0.71 0.47 0.64
2. Inductance measured at 100 kHz, 0.1 Vrms, 0 Adc using
ME3220-273KL_ 27 10% 1.19 26.1 0.56 0.63 0.67 0.40 0.54 Coilcraft SMD-A fixture in Agilent/HP 4284A impedance
analyzer.
ME3220-333KL_ 33 10% 1.27 23.0 0.50 0.57 0.60 0.39 0.53
3. DCR measured on a micro-ohmmeter and Coilcraft
ME3220-393KL_ 39 10% 1.38 22.6 0.45 0.51 0.54 0.34 0.47
CCF858 test fixture.
ME3220-473KL_ 47 10% 1.80 20.7 0.40 0.46 0.49 0.30 0.45
4. SRF measured using Agilent/HP 8753D network
ME3220-563KL_ 56 10% 2.10 20.3 0.37 0.42 0.45 0.27 0.43
analyzer and Coilcraft SMD- D test fixture.
ME3220-683KL_ 68 10% 2.30 16.3 0.34 0.38 0.41 0.26 0.38
5. DC current at 25C that causes the specified inductance
ME3220-823KL_ 82 10% 3.00 13.7 0.30 0.34 0.36 0.25 0.34
drop from its value without current.
Click for temperature derating information.
ME3220-104KL_ 100 10% 3.50 13.3 0.28 0.32 0.34 0.24 0.32
6. Current that causes the specified temperature rise from
25C ambient. This information is for reference only and
does not represent absolute maximum ratings.
Click for temperature derating information.
7. Electrical specifications at 25C.
Refer to Doc 362 Soldering Surface Mount Components
before soldering.
Document 380-1 Revised 02/17/12
US +1-847-639-6400 sales@coilcraft.com
UK +44-1236-730595 sales@coilcraft-europe.com Coilcraft Inc. 2017
This product may not be used in medical or high
Taiwan +886-2-2264 3646 sales@coilcraft.com.tw
risk applications without prior Coilcraft approval.
China +86-21-6218 8074 sales@coilcraft.com.cn
Specification subject to change without notice.
Singapore + 65-6484 8412 sales@coilcraft.com.sg Please check web site for latest information.Document 380-2
SMT Power Inductor ME3220 Series
Typical L vs Frequency Typical L vs Current
1000
1000
100 H
100 H
100
100
33 H
33 H
10 H
10 H
10
10
3.3 H 3.3 H
1 H
1 H
1
1
0.1
0.1
0.01 0.1 1 10
0.01 0.1 1 10
Frequency (MHz)
Current (A)
Typical Temperature Rise vs Current
0.126 0.012
50
3,2 0,3
40
0.110
max
2,8
30
0.098 0.008
20
2,5 0.2
10
0.079 0.016
2,0 0,4
Recommended
0
0 0.5 1.0 1.5 2.0 2.5 3.0
Land Pattern
0.060
Current (Arms)
0.043
1,52
1,10
0.098 0.120
2,5 3,05
0.090
inches
Dimensions are in 2,29
mm
Document 380-2 Revised 02/17/12
US +1-847-639-6400 sales@coilcraft.com
UK +44-1236-730595 sales@coilcraft-europe.com Coilcraft Inc. 2017
This product may not be used in medical or high
Taiwan +886-2-2264 3646 sales@coilcraft.com.tw
risk applications without prior Coilcraft approval.
China +86-21-6218 8074 sales@coilcraft.com.cn
Specification subject to change without notice.
Singapore + 65-6484 8412 sales@coilcraft.com.sg Please check web site for latest information.
1.0 H
3.3 H
10 H
33 H
100 H
Temperature rise (from 25C) Inductance (H)
Inductance (H)