3D Model Datasheet

MSS7331 Series

Shielded Surface Mount Power Inductors

Coilcraft MSS7331 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
AEC-Q200 Grade 3 (–40°C to +85°C)

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Count	Unit price
1	$1.66
350	$1.10
700	$0.67
1400	$0.52
2800	$0.44
5000	$0.41

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

Termination

L = Matte tin over nickel

Packaging

C = 7" machine-ready reel

Tolerance

N = 30%

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Specifications

Electrical specifications at 25°C.

Part number 1	Inductance (µH) 2	Tolerance (%)	DCR (Ω) 3		SRF typ (MHz) 4	Isat (A) 5			Irms (A) 6
Part number 1	Inductance (µH) 2	Tolerance (%)	typ	max	SRF typ (MHz) 4	10% drop	20% drop	30% drop	20°C rise	40°C rise
MSS7331-152NL_	1.5	30	0.0090	0.012	80.0	3.5	4.4	5.1	4.8	6.9
MSS7331-302NL_	3.0	30	0.014	0.020	55.0	2.3	3.0	3.5	4.2	6.0
MSS7331-392NL_	3.9	30	0.017	0.023	45.0	2.2	2.8	3.2	4.1	5.7
MSS7331-502ML_	5.0	20	0.022	0.030	40.0	2.0	2.4	2.8	3.3	4.5
MSS7331-602ML_	6.0	20	0.025	0.033	38.0	1.8	2.2	2.6	3.4	4.6
MSS7331-732ML_	7.3	20	0.035	0.045	35.0	1.8	2.2	2.5	2.8	3.8
MSS7331-862ML_	8.6	20	0.038	0.048	33.5	1.6	2.0	2.2	2.5	3.4
MSS7331-103ML_	10	20	0.046	0.052	30.0	1.4	1.7	1.9	2.4	3.2
MSS7331-123ML_	12	20	0.058	0.066	26.0	1.3	1.6	1.7	2.1	2.8
MSS7331-153ML_	15	20	0.067	0.075	24.0	1.2	1.4	1.6	2.0	2.7
MSS7331-183ML_	18	20	0.071	0.088	22.0	1.1	1.3	1.4	1.9	2.6
MSS7331-223ML_	22	20	0.095	0.11	21.0	0.98	1.2	1.3	1.6	2.2
MSS7331-273ML_	27	20	0.11	0.13	17.0	0.89	1.1	1.2	1.5	2.0
MSS7331-333ML_	33	20	0.12	0.15	16.0	0.80	0.97	1.1	1.4	1.9
MSS7331-393ML_	39	20	0.16	0.18	14.5	0.70	0.86	0.96	1.2	1.6
MSS7331-473ML_	47	20	0.18	0.22	12.5	0.67	0.80	0.89	1.2	1.6
MSS7331-563ML_	56	20	0.24	0.27	11.5	0.61	0.72	0.80	1.0	1.4
MSS7331-683ML_	68	20	0.27	0.30	10.5	0.55	0.66	0.74	0.92	1.2
MSS7331-823ML_	82	20	0.30	0.37	9.5	0.52	0.60	0.67	0.84	1.2
MSS7331-104ML_	100	20	0.42	0.50	8.5	0.45	0.54	0.61	0.79	1.1

Notes

When ordering, please specify termination and packaging codes: e.g. MSS7331-104MLC
Inductance measured at 100 kHz, 0.1 Vrms using an Agilent/HP 4284A LCR meter or equivalent.
DCR measured at 25°C. For other operating temperatures, use this DCR at Temperature calculator
For SRF >13 MHz, SRF measured using an Agilent/HP 8753D network Analyzer or equivalent. For SRF <13 MHz, SRF measured using an Agilent/HP 4192A or equilvalent. 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 (current production) or gold over nickel over phos bronze (prior production).
T = RoHS tin-silver-copper (95.5/4/0.5) over gold over nickel over phos bronze. (Special order, added cost)
S = non-RoHS tin-lead (63/37) over gold over nickel over phos bronze. (Special order, added cost)

Packaging:

C = 7″ machine-ready reel. EIA-481 embossed plastic tape (350 parts per full reel). Quantities less than full reel available: in tape (not machine ready) or with leader and trailer ($25 charge).
D = 13″ machine-ready reel. EIA-481 embossed plastic tape. Factory order only, not stocked (1500 parts per full reel).
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 C.

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 ‡
7" (178 mm)	13" (330 mm)	A	B	C	D	E	W	P	Po	P1	H	T
350	1500*	178/330	60/100	13	18,4	12,4	16	12	4	2	3,7	0,4

* Special order
‡ Part marking does not indicate polarity

General specification

Core Material:

Ferrite

Weight:

0.48 - 0.51g

Packaging:

350/7″ reel, 1500/13″ reel; Plastic tape: 16 mm wide, 0.40 mm thick, 12 mm pocket spacing, 3.7 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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MSS7331 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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