© Coilcraft, Inc. 2009
Specifications subject to change without notice.
Please check our website for latest information.
SMT Power Inductor–ME3220 Series
Document 380-1
Document 380-1
Revised 11/14/08
1. Please specify termination and packaging codes:
ME3220-104K
LC
Termination: L = RoHS matte tin over nickel over silver.
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 (2000 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 (7000 parts
per full reel).
2. Inductance measured at 100 kHz, 0.1 Vrms, 0 Adc
using Coilcraft SMD-A fixture in Agilent/HP 4284A
impedance analyzer.
3. DCR measured on a micro-ohmmeter and Coilcraft
CCF858 test fixture.
4. SRF measured using Agilent/HP 8753D network
analyzer and 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.
DCR
SRF
Isat (A)5
Irms (A)6
Inductance2
max3
typ4
10%
20% 30%
20°C 40°C
Part number1
(µH)
(Ohms) (MHz) drop drop drop
rise
rise
ME3220-102ML_
1.0 ±20%
0.058
170.7
2.7
3.0
3.2
2.0
2.6
ME3220-152ML_
1.5 ±20%
0.068
138.0
2.2
2.5
2.7
1.6
2.2
ME3220-222ML_
2.2 ±20%
0.104
92.6
1.8
2.1
2.2
1.5
2.0
ME3220-332ML_
3.3 ±20%
0.138
75.6
1.5
1.6
1.7
1.4
1.6
ME3220-472ML_
4.7 ±20%
0.190
58.2
1.2
1.4
1.5
1.0
1.3
ME3220-562ML_
5.6 ±20%
0.200
52.5
1.1
1.3
1.4
1.0
1.3
ME3220-682ML_
6.8 ±20%
0.270
46.2
1.0
1.1
1.2
0.88
1.1
ME3220-822ML_
8.2 ±20%
0.290
45.2
0.98
1.0
1.1
0.80
1.0
ME3220-103KL_
10 ±10%
0.434
39.9
0.78
1.0
1.1
0.63
0.87
ME3220-123KL_
12 ±10%
0.470
37.5
0.76
0.88
0.98
0.61
0.84
ME3220-153KL_
15 ±10%
0.520
32.5
0.70
0.80
0.90
0.58
0.83
ME3220-183KL_
18 ±10%
0.696
31.7
0.66
0.75
0.80
0.49
0.70
ME3220-223KL_
22 ±10%
0.787
29.4
0.59
0.67
0.71
0.47
0.64
ME3220-273KL_
27 ±10%
1.19
26.1
0.56
0.63
0.67
0.40
0.54
ME3220-333KL_
33 ±10%
1.27
23.0
0.50
0.57
0.60
0.39
0.53
ME3220-393KL_
39 ±10%
1.38
22.6
0.45
0.51
0.54
0.34
0.47
ME3220-473KL_
47 ±10%
1.80
20.7
0.40
0.46
0.49
0.30
0.45
ME3220-563KL_
56 ±10%
2.10
20.3
0.37
0.42
0.45
0.27
0.43
ME3220-683KL_
68 ±10%
2.30
16.3
0.34
0.38
0.41
0.26
0.38
ME3220-823KL_
82 ±10%
3.00
13.7
0.30
0.34
0.36
0.25
0.34
ME3220-104KL_
100 ±10%
3.50
13.3
0.28
0.32
0.34
0.24
0.32
Designer’s Kit C386 contains samples of all values
Core material Ferrite
Core and winding loss See www.coilcraft.com/coreloss
Terminations RoHS matte tin over nickel over silver. Other
terminations available at additional cost.
Weight 56 – 65 mg
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 2000/7
″reel; 7000/13″ reel Plastic tape: 12 mm wide,
0.25 mm thick, 4 mm pocket spacing, 2.25 mm pocket depth
PCB washing Only pure water or alcohol recommended
• Miniature power inductor: 2.5 × 3.2 base × 2.0 mm tall
• Specified by NSC for their LM2830 Buck Converter
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