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MSS4020 Series

Shielded Surface Mount Power Inductors

RoHS compliant
We will continue to manufacture and support the MSS4020 indefinitely, however for new designs, we recommend the LPS4018 as an alternative to this series. The LPS4018 is more cost effective, has higher Isat, lower DCR, smaller dimensions and more inductance values.

mss4020_lps4018_ybox-(1).jpg
         MSS4020           LPS4018
Coilcraft MSS4020 Series shielded surface-mount power inductors feature low DC resistance and excellent current handling in a wide range of industry-standard footprints and inductance values, making them a cost-effective option for a variety of general-purpose applications. 
  • Low-loss ferrite drum core for flat inductance vs current
  • Low DC resistance for greater efficiency
  • Excellent current handling
  • Magnetic shielding allows high-density mounting
Buy Now:
Count Unit price
1 $1.81
250 $1.36
500 $0.82
1000 $0.64
2000 $0.55
4000 $0.50

For high volume or non-stock items, request a quote.

. in stock, ready to ship today.
Designer's Kit:
Kit Values Price
C381 18 (3 of each) $55.00

Specifications

Electrical specifications at 25°C.

Part number 1 Inductance (µH) 2
(Tolerance: ±20%)
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
MSS4020-332ML_ 3.3 0.085 109 0.94 1.1 1.2 1.3 1.6
MSS4020-472ML_ 4.7 0.12 93.0 0.73 0.87 0.95 1.1 1.5
MSS4020-562ML_ 5.6 0.13 85.0 0.70 0.82 0.89 1.1 1.4
MSS4020-682ML_ 6.8 0.18 75.0 0.65 0.76 0.83 0.96 1.3
MSS4020-822ML_ 8.2 0.19 70.0 0.61 0.71 0.77 0.89 1.2
MSS4020-103ML_ 10 0.21 63.0 0.50 0.60 0.67 0.86 1.2
MSS4020-123ML_ 12 0.28 55.0 0.47 0.55 0.60 0.75 1.0
MSS4020-153ML_ 15 0.33 50.0 0.45 0.53 0.58 0.71 0.95
MSS4020-183ML_ 18 0.36 42.0 0.40 0.47 0.52 0.67 0.85
MSS4020-223ML_ 22 0.48 38.0 0.39 0.45 0.49 0.60 0.80
MSS4020-273ML_ 27 0.56 35.0 0.30 0.36 0.39 0.54 0.71
MSS4020-333ML_ 33 0.62 31.0 0.29 0.34 0.38 0.50 0.67
MSS4020-393ML_ 39 0.82 28.5 0.28 0.32 0.36 0.44 0.58
MSS4020-473ML_ 47 0.93 28.0 0.25 0.28 0.31 0.42 0.56
MSS4020-563ML_ 56 1.2 22.0 0.23 0.27 0.29 0.35 0.47
MSS4020-683ML_ 68 1.3 18.0 0.20 0.24 0.26 0.32 0.43
MSS4020-823ML_ 82 1.5 17.0 0.18 0.21 0.23 0.30 0.40
MSS4020-104ML_ 100 2.1 15.0 0.15 0.18 0.20 0.27 0.36
Notes
  1. When ordering, please specify termination and packaging codes: e.g. MSS4020-104MLD
  2. Inductance measured at 100 kHz, 0.1 Vrms using a Coilcraft SMD-A fixture in an Agilent/HP 4263B LCR meter or equivalent
  3. DCR measured at 25°C. For other operating temperatures, use this DCR at Temperature calculator
  4. SRF measured using an Agilent/HP 8753D network analyzer and a Coilcraft SMD-D test 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 matte tin over nickel over phos bronze.
  • T = RoHS tin-silver-copper (95.5/4/0.5). (Special order, added cost)
  • S = non-RoHS tin-lead (63/37). (Special order, added cost)

Packaging:

  • 13" reel, machine-ready 
    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 D instead.
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

Inductance vs. Frequency

Physical characteristics

mss4020d.gif
dims_inches_mm.gif

Tape and Reel specification

tapereel_pl.gif

 
Parts per reel Reel dimensions (mm) Tape dimensions (mm) Orientation
13" (330 mm) A B C D E W P Po P1 H T part_or_x.gif
2000 330 100 13 18,4 12,4 12 8 4 2 2,2 0,3

General specification

Core Material:
Ferrite
Weight:
81.0 - 87.8 mg
Packaging:
2000/13″ reel; Plastic tape: 12 mm wide, 0.3 mm thick, 8 mm pocket spacing, 2.2 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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