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ME3220 Series
Surface Mount Power Inductors

New RoHS part numbers are shown. Lead was removed from internal connections. The last three characters indicate tolerance, RoHS compliance, and packaging. (View old data sheet.)
  • Very small footprint, just 2.5 mm x 3.2 mm
  • Saturation current rating up to 2.7 Amps; Low DC resistance for greater efficiency
  • Specified by National Semiconductor for their LM2830 Buck Converter
  • 21 inductance values from 1.0 to 100 µH
  • RoHS-compliant. 260°C compatible. Matte tin over nickel over silver terminations
  • COTS Plus tin-silver-copper and tin-lead terminations available
  • Samples of all values are available in Coilcraft Designer's Kit C386

Photo    Pricing    Materials declaration    PDF data sheet

SPECIFICATIONS

L vs Frequency     L vs Current     Current Derating     Core loss

 Temperature Rise vs Current     Dimensions     Qualification standards

 Tape and reel specifications     SPICE models
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
1 When ordering, please specify termination and packaging codes: e.g. ME3220-104KLC
  Termination: L = RoHS compliant matte tin over nickel over silver
Special order, added cost: 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, not machine ready. To have a leader and trailer added ($25 charge), use code letter C instead.
D = 13" reel, machine-ready 
EIA-481 embossed plastic tape. Factory order only, not stocked (7000 parts per full reel).
2 Inductance measured at 100 kHz, 0.1 Vrms, 0 Adc using Coilcraft SMD-A fixture in Agilent/HP 4263B impedance analyzer.
3 DCR measured on a micro-ohmmeter and Coilcraft CCF858 test fixture.
4 SRF measured using Agilent/HP 8753D network analyzer and a Coilcraft SMD-D fixture. Details
5 Isat: DC current at which the inductance drops 30% max from its value without current. Details
6 Irms: Current that causes a 40°C temperature rise from 25°C ambient. Details
7 Ambient temperature range: –40°C to +85°C with Irms current.
+85°C to +125°C with derated current Derating curve
8 Storage temperature range: Component: –40°C to +125°C
Packaging: –55°C to +80°C
9 Resistance to soldering heat: Three reflows at >217°C for 90 seconds (+260°C ±5°C for 20 – 40 seconds), allowing parts to cool to room temperature between.
10 Electrical specifications at 25°C.
See Qualification Standards for complete environmental and test data.
Refer to Soldering Coilcraft Components before soldering.
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Updated: May 13, 2008