Document 383-1
SMT Power Inductors – MSS7341
• 6.6 × 6.6 mm footprint; 4.1 mm high shielded inductors
• Low DCR and excellent current handling
Designer’s Kit C385
contains 3 each of all values.
Core material
Ferrite
Core and winding loss
See www.coilcraft.com/coreloss
Terminations
RoHS compliant gold over nickel over phos bronze.
Other terminations available at additional cost.
Weight:
0.61 – 0.67 g
Ambient temperature
–40°C to +85°C with
Irms
current, +85°C to
+125°C with derated current
Storage temperature
Component: –40°C to +125°C.
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
1200/13″ reel; Plastic tape: 16 mm wide, 0.35 mm thick,
12 mm pocket spacing, 4.5 mm pocket depth
PCB washing
Only pure water or alcohol recommended
Part number
1
MSS7341-332NL_
MSS7341-502NL_
MSS7341-622NL_
MSS7341-742NL_
MSS7341-872NL_
MSS7341-103ML_
MSS7341-123ML_
MSS7341-153ML_
MSS7341-183ML_
MSS7341-223ML_
MSS7341-273ML_
MSS7341-333ML_
MSS7341-393ML_
MSS7341-473ML_
MSS7341-563ML_
MSS7341-683ML_
MSS7341-823ML_
MSS7341-104ML_
MSS7341-224ML_
MSS7341-474ML_
DCR
Inductance
2
max
(µH)
(Ohms)
3.3 ±30% 0.020
5.0 ±30% 0.024
6.2 ±30% 0.027
7.4 ±30% 0.031
8.7 ±30% 0.034
10 ±20%
0.038
12 ±20%
0.053
15 ±20%
0.057
18 ±20%
0.078
22 ±20%
0.082
27 ±20%
0.109
33 ±20%
0.124
39 ±20%
0.138
47 ±20%
0.155
56 ±20%
0.202
68 ±20%
0.276
82 ±20%
0.324
100 ±20%
0.358
220 ±20%
0.780
470 ±20%
1.45
SRF
typ
3
(MHz)
58.0
46.0
42.0
40.0
35.0
32.0
26.2
24.0
22.5
21.5
19.0
18.0
17.0
14.2
13.4
12.0
11.0
10.5
5.0
3.0
Isat
(A)
4
10% 20% 30%
drop drop drop
2.74 3.28 3.72
2.30 2.82 3.16
2.18 2.66 2.98
1.92 2.32 2.56
1.78 2.12 2.36
1.64 1.92 2.10
1.48 1.76 1.92
1.36 1.60 1.78
1.20 1.46 1.62
1.02 1.26 1.42
1.00 1.14 1.22
0.91 1.04 1.16
0.85 1.01 1.12
0.74 0.92 1.00
0.68 0.80 0.87
0.62 0.73 0.80
0.57 0.66 0.72
0.54 0.64 0.71
0.35 0.41 0.47
0.24 0.28 0.32
Irms
(A)
5
20°C 40°C
rise rise
3.95 5.00
3.40 4.70
3.05 4.30
2.80 4.10
2.80 3.90
2.80 3.80
2.45 3.30
2.05 3.00
1.85 2.65
1.70 2.35
1.50 2.10
1.50 1.95
1.50 1.90
1.50 1.85
1.25 1.60
1.00 1.35
1.00 1.25
0.90 1.15
0.57 0.78
0.43 0.57
1. Please specify
termination
and
packaging
codes:
MSS7341-474MLD
Termination: L
= RoHS compliant gold over nickel
over phos bronze
Special order:
T
= RoHS tin-silver-copper (95.5/4/0.5)
or
S
= non-RoHS tin-lead (63/37).
Packaging: D
= 13″ machine-ready reel. EIA-481
embossed plastic tape (1200 parts
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 D
instead.
2. Inductance measured at 100 kHz, 0.1 Vrms, 0 Adc using
a Coilcraft SMD-A fixture in an Agilent/HP 4263B LCR
meter.
3. SRF measured using an Agilent/HP 8753D network
analyzer and a Coilcraft SMD-D test fixture.
4. DC current at which the inductance drops the specified
amount from its value without current.
5. Current that causes the specified temperature rise from
25°C ambient.
6. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components”
before soldering.
Specifications subject to change without notice.
Please check our website for latest information.
Document 383-1
Revised 10/20/09
© Coilcraft, Inc. 2009
Document 383-2
SMT Power Inductors – MSS7341
Typical L vs Current
1000
Typical L vs Frequency
1000
Inductance (µH)
100
Inductance (µH)
100 µH
33 µH
100
100 µH
33 µH
10
10 µH
10
10 µH
3.3 µH
3.3 µH
1.0
0.01
0.1
1.0
10.0
1.0
0.01
0.1
1.0
10.0
Current (A)
Frequency (MHz)
0.287
*
7,3
Temperature Rise vs Current
50
Temperature rise (from 25°C)
100 µH
33 µ
H
40
3.3 µ
H
0.287
*
7,3
10
µH
123
X
Dash number
Internal code
Parts manufactured prior
to Sept. 2007 were marked
with only the dash number.
*
Dimensions are of the case not
including the termination. For
maximum overall dimensions
including the termination, add
0.02 in / 0,51 mm.
30
20
0.161 max
4,1
10
0.260
typ
6,6
0
0
1.0
2.0
3.0
4.0
5.0
6.0
0.083 typ
2,1
0.280
7,1
0.099
2,5
0.260
typ
6,6
Current (A rms)
0.181
4,6
Irms Derating
120
110
100
inches
Dimensions are in
mm
Recommended
Land Pattern
Percent of rated
I
rms
90
80
70
60
50
40
30
20
10
0
-40
-20
0
20
40
60
80
100
120 140
Ambient temperature (°C)
Specifications subject to change without notice.
Please check our website for latest information.
Document 383-2
Revised 10/20/09
© Coilcraft, Inc. 2009
25°C
51mcu
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