MSS7331

Document 1097-1
Shielded Power Inductors – MSS7331
• 7.0 × 7.0 mm footprint; 3.1 mm high shielded inductors
• Low DCR and excellent current handling
Core material Ferrite
Core and winding loss See www.coilcraft.com/coreloss
Terminations RoHS compliant matte tin over nickel over phos bronze.
Other terminations available at additional cost.
Weight 0.48 – 0.51 g
Ambient temperature –40°C to +85°C with (40°C rise) Irms current.
Maximum part temperature +125°C (ambient + temp rise). Derating.
Storage temperature Component: –40°C to +125°C.
Tape and reel packaging: –40°C to +80°C
Resistance to soldering heat Max three 40 second reflows at
+260°C, parts cooled to room temperature between cycles
Moisture Sensitivity Level (MSL) 1 (unlimited floor life at <30°C /
85% relative humidity)
Failures in Time (FIT) / Mean Time Between Failures (MTBF)
38 per billion hours / 26,315,789 hours, calculated per Telcordia SR-332
Packaging 350/7″ reel, 1500/13″ reel; Plastic tape: 16 mm wide,
0.35 mm thick, 12 mm pocket spacing, 3.7 mm pocket depth
PCB washing Tested to MIL-STD-202 Method 215 plus an additional
aqueous wash. See Doc787_PCB_Washing.pdf.
Part number1
Inductance2
(µH)
Isat (A)4 Irms (A)5
DCR SRF
(Ohms)
typ3 10% 20%30% 20°C40°C
typ max (MHz) drop dropdrop rise rise
MSS7331-152NL_  1.5 ±30%0.009 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
0.05230.01.41.71.9 2.43.2
MSS7331-123ML_ 
12 ±20%0.058
0.06626.01.31.61.7 2.12.8
MSS7331-153ML_ 
15 ±20%0.067
0.07524.01.21.41.6 2.02.7
MSS7331-183ML_ 
18 ±20%0.071
0.08822.01.11.31.4 1.92.6
MSS7331-223ML_  22 ±20% 0.095 0.113 21.0 0.98 1.2 1.3 1.6 2.2
MSS7331-273ML_  27 ±20% 0.105 0.132 17.0 0.89 1.1 1.2 1.5 2.0
MSS7331-333ML_  33 ±20% 0.123 0.150 16.0 0.80 0.97 1.1 1.4 1.9
MSS7331-393ML_  39 ±20% 0.161 0.180 14.5 0.70 0.86 0.96 1.2 1.6
MSS7331-473ML_  47 ±20% 0.180 0.215 12.5 0.67 0.80 0.89 1.2 1.6
MSS7331-563ML_  56 ±20% 0.240 0.270 11.5 0.61 0.72 0.80 1.0 1.4
MSS7331-683ML_ 68 ±20% 0.2730.300 10.5 0.550.660.74 0.921.2
MSS7331-823ML_ 82 ±20% 0.3040.370 9.5 0.520.600.67 0.841.2
MSS7331-104ML_100 ±20% 0.4190.495 8.5 0.450.540.61 0.791.1
1. Please specify termination and packaging codes:
MSS7331-104MLC
Termination:L=RoHS compliant gold over
nickel over phos bronze
Special order:
T = RoHS tin-silver-copper
(95.5/4/0.5) over tin over nickel
over phos bronze or
S = non-RoHS tin-lead (63/37)
over tin over nickel over phos
bronze.
Packaging:C
=7″ machine-ready reel EIA481 embossed plastic tape (350
per full reel).
B
=Less than full reel In tape,
but not machine-ready. To have
a leader and trailer added
($25 charge), use code letter C
instead.
D
=13″ machine-ready reel EIA481 embossed plastic tape.
Factory order only, not stocked
(1500 per reel per full reel).
2. Inductance tested at 100 kHz, 0.1 Vrms, 0 Adc using
an Agilent/HP 4284A LCR meter or equivalent.
3. 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 equivalent.
4. DC current at 25°C that causes the specified
inductance drop from its value without current.
Click for temperature derating information.
5. Current that causes the specified temperature rise
from 25°C ambient. This information is for reference
only and does not represent absolute maximum
ratings. Click for temperature derating information.
6. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components”
before soldering.
Document 1097-1 Revised 09/02/15
Document 1097-2
Shielded Power Inductors – MSS7331
Typical L vs Current
Typical L vs Frequency
1000
100 µH
100
Inductance (µH)
Inductance (µH)
1000
39 µH
10 µH
10
100 µH
100
39 µH
10 µH
10
3.9 µH
3.9 µH
1.5 µH
1
0.01
1.5 µH
1.0
0.1
10
Current (A)
1
0.1
1
10
100
Frequency (MHz)
0.287 *
7,3
0.287*
7,3
123
X
Dash number
Internal code
* Dimensions are of the case not
including the termination. For
maximum overall dimensions
including the termination, add
0.02 in / 0,51 mm.
0.122 max
3,1
0.083 typ
2,1
0.260 typ
6,6
0.280
7,1
0.099
2,5
0.280
7,1
0.260 typ
6,6
0.222
∅
5,65
Recommended
Land Pattern
Dimensions are in
inches
mm
Document 1097-2 Revised 09/02/15