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ME3220 Series

Surface Power Inductors

RoHS compliant
Coilcraft ME3220 Series unshielded surface-mount power inductors combine current ratings up to 2.8 Amps with low DC resistance on an industry-standard 3225 footprint (3.2 x 2.5 mm).
  • Cost-effective design
  • Industry-standard footprint
  • Open magnetic path 
  • Low height - 2.0 mm
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Designer's Kit:
Kit Values Price
C386 21 (3 of each) $65.00

Specifications

Electrical specifications at 25°C.

Part number 1 Inductance (µH) 2 Tolerance (%) DCR max (Ω) 3 SRF typ (MHz) 4 Isat (A) 5 Irms (A) 6
10% drop 20% drop 30% drop 20°C rise 40°C rise
ME3220-102ML_ 1.0 20 0.058 171 2.7 3.0 3.2 2.0 2.6
ME3220-152ML_ 1.5 20 0.068 138 2.2 2.5 2.7 1.6 2.2
ME3220-222ML_ 2.2 20 0.10 92.6 1.8 2.1 2.2 1.5 2.0
ME3220-332ML_ 3.3 20 0.14 75.6 1.5 1.6 1.7 1.4 1.6
ME3220-472ML_ 4.7 20 0.19 58.2 1.2 1.4 1.5 1.0 1.3
ME3220-562ML_ 5.6 20 0.20 52.5 1.1 1.3 1.4 1.0 1.3
ME3220-682ML_ 6.8 20 0.27 46.2 1.0 1.1 1.2 0.88 1.1
ME3220-822ML_ 8.2 20 0.29 45.2 0.98 1.0 1.1 0.80 1.0
ME3220-103KL_ 10 10 0.43 39.9 0.78 1.0 1.1 0.63 0.87
ME3220-123KL_ 12 10 0.47 32.5 0.76 0.88 0.98 0.61 0.84
ME3220-153KL_ 15 10 0.52 32.5 0.70 0.80 0.90 0.58 0.83
ME3220-183KL_ 18 10 0.70 31.7 0.66 0.75 0.80 0.49 0.70
ME3220-223KL_ 22 10 0.79 29.4 0.59 0.67 0.71 0.47 0.64
ME3220-273KL_ 27 10 1.2 26.1 0.56 0.63 0.67 0.40 0.54
ME3220-333KL_ 33 10 1.3 28.0 0.50 0.57 0.60 0.39 0.53
ME3220-393KL_ 39 10 1.4 22.6 0.45 0.51 0.54 0.34 0.47
ME3220-473KL_ 47 10 1.8 20.7 0.40 0.46 0.49 0.30 0.45
ME3220-563KL_ 56 10 2.1 20.3 0.37 0.42 0.45 0.27 0.43
ME3220-683KL_ 68 10 2.3 16.3 0.34 0.38 0.41 0.26 0.38
ME3220-823KL_ 82 10 3.0 13.7 0.30 0.34 0.36 0.25 0.34
ME3220-104KL_ 100 10 3.5 13.3 0.28 0.32 0.34 0.24 0.32
Notes
  1. When ordering, please specify termination and packaging codes: e.g. ME3220-104KLC
  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 at 25°C on a micro-ohmmeter and Coilcraft CCF858 test fixture. For other operating temperatures, use this DCR at Temperature calculator.
  4. SRF measured using Agilent/HP 8753D network analyzer and a Coilcraft SMD-D fixture.  Details
  5. Isat: DC current at 25°C that causes the specified inductance drop from its value without current. Temperature derating curves.
  6. Irms: Current that causes the specified temperature rise from 25°C ambient. This information is for reference only and does not represent absolute maximum ratings. Temperature derating curves.

 

Termination:

  • L = RoHS compliant tin-silver-copper over tin over nickel over silver.
  • S = non-RoHS tin-lead (63/37). (Special order, added cost)

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.
  • 13" reel, machine-ready 
    EIA-481 embossed plastic tape. Factory order only, not stocked (7000 parts per full reel).
Environmental
Environmental:
RoHS compliant
Ambient temperature range:
–40°C to +85°C with (40°C rise) Irms current.
Storage temperature range:
Component: –40°C to +125°C.
Tape and reel packaging: –40°C to +80°C
Maximum part temperature:
+125°C (ambient + temp rise).
Failures in Time (FIT) / Mean Time Between Failures (MTBF):
38 per billion hours / 26,315,789 hours, calculated per Telcordia SR-332

Performance curves

Inductance vs. Current

Temperature Rise versus Current

Inductance vs. Frequency

Physical characteristics

me3220d.gif
dims_inches_mm.gif

Tape and Reel specification

tapereel_pl.gif
Parts per reel Reel dimensions (mm) Tape dimensions (mm) Orientation
7" (178 mm) 13" (330 mm) A B C D E W P Po P1 H T part_or_k.gif
2000 7000* 178/330 60/100 13 18,4 12,4 12 4 4 2 2,25 0,25
* Special order

General specification

Core Material:
Ferrite
Weight:
56 - 65 mg
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

Soldering/Washing

Moisture Sensitivity Level (MSL):
1 (unlimited floor life at <30°C / 85% relative humidity)
Resistance to soldering heat:
Max three 40 second reflows at +260°C, parts cooled to room temperature between cycles
Refer to Soldering Coilcraft Components before soldering.
PCB Washing:
Tested to MIL-STD-202 Method 215 plus an additional aqueous wash. More info.

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