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MSS4020 Series

Shielded Surface Mount Power Inductors

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 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

Need parts for space, military or other critical applications?
See Coilcraft ST432PNA Series

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Part number

Find my part

Count	Unit price
1	$2.36
250	$1.57
500	$0.95
1000	$0.74
2000	$0.63
5000	$0.59

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

Tolerance

M = 20%

Termination

L = Matte tin over nickel

Packaging

D = 13" machine-ready reel

. 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
Part number 1	Inductance (µH) 2 (Tolerance: ±20%)	DCR max (Ω) 3	SRF typ (MHz) 4	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

When ordering, please specify termination and packaging codes: e.g. MSS4020-104MLD
Inductance measured at 100 kHz, 0.1 Vrms using a Coilcraft SMD-A fixture in an Agilent/HP 4263B LCR meter or equivalent
DCR measured at 25°C. For other operating temperatures, use this DCR at Temperature calculator
SRF measured using an Agilent/HP 8753D network analyzer and a Coilcraft SMD-D test fixture. Details
Isat: DC current at 25°C that causes the specified inductance drop from its value without current. Temperature derating curves.
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:

D = 13″ machine-ready reel. EIA-481 embossed plastic tape (2000 parts per full reel). Quantities less than full reel available: in tape (not machine ready) or with leader and trailer ($25 charge).
B = Less than full reel. In an effort to simplify our part numbering system, Coilcraft is eliminating the need for multiple packaging codes. When ordering, simply change the last letter of your part number from B to D.

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):

See FIT/MTBF Calculations

Performance curves

Inductance vs. Current

Inductance vs. Frequency

Physical characteristics

Tape and Reel specification

Parts per reel	Reel dimensions (mm)					Tape dimensions (mm)						Orientation
13" (330 mm)	A	B	C	D	E	W	P	Po	P1	H	T
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.

Warehouses

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MSS4020 Series

Shielded Surface Mount Power Inductors

Selected configuration not available

Specifications

Termination:

Packaging:

Performance curves

Inductance vs. Current

Inductance vs. Frequency

Physical characteristics

Tape and Reel specification

General specification

Soldering/Washing

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Warning