Coilcraft MSS4020-123ML Smt power inductor Datasheet

Document 329 -1
SMT Power Inductors – MSS4020
• 4 × 4 mm footprint; 2 mm high shielded inductors
• Low DCR and excellent current handling
Designer’s Kit C381 contains 3 each of all values.
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: 81.0 – 87.8 mg
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 2000/13″ reel; Plastic tape: 12 mm wide, 0.3 mm thick,
8 mm pocket spacing, 2.2 mm pocket depth
PCB washing Only pure water or alcohol recommended
Part number1
MSS4020-332ML_
MSS4020-472ML_
MSS4020-562ML_
MSS4020-682ML_
MSS4020-822ML_
MSS4020-103ML_
MSS4020-123ML_
MSS4020-153ML_
MSS4020-183ML_
MSS4020-223ML_
MSS4020-273ML_
MSS4020-333ML_
MSS4020-393ML_
MSS4020-473ML_
MSS4020-563ML_
MSS4020-683ML_
MSS4020-823ML_
MSS4020-104ML_
Inductance2
±20% (µH)
3.3
4.7
5.6
6.8
8.2
10
12
15
18
22
27
33
39
47
56
68
82
100
DCR max
(Ohms)
0.085
0.115
0.130
0.175
0.190
0.210
0.280
0.330
0.360
0.480
0.560
0.620
0.820
0.930
1.200
1.330
1.500
2.100
SRF typ3
(MHz)
109.0
93.0
85.0
75.0
70.0
63.0
55.0
50.0
42.0
38.0
35.0
28.0
30.0
28.0
22.0
18.0
17.0
15.0
1. When ordering, please specify termination and packaging codes:
MSS4020-104MLD
Termination: L = RoHS compliant matte tin 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 (2000 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.
10% drop
0.94
0.73
0.70
0.65
0.61
0.50
0.47
0.45
0.40
0.39
0.30
0.29
0.28
0.25
0.23
0.20
0.18
0.15
2 Isat (A)4
20% drop
1.10
0.87
0.82
0.76
0.71
0.60
0.55
0.53
0.47
0.45
0.36
0.34
0.32
0.28
0.27
0.24
0.21
0.18
Irms (A)5
20°C rise 40°C rise
1.25
1.60
1.10
1.50
1.05
1.40
0.96
1.30
0.89
1.20
0.86
1.15
0.75
1.00
0.71
0.95
0.67
0.85
0.60
0.80
0.54
0.71
0.50
0.67
0.44
0.58
0.42
0.56
0.35
0.47
0.32
0.43
0.30
0.40
0.27
0.36
2. Inductance measured at 100 kHz, 0.1 Vrms, 0 Adc using a Coilcraft
SMD-A fixture in an Agilent/HP 4263B LCR meter or equivalent.
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.
© Coilcraft, Inc. 2009
30% drop
1.20
0.95
0.89
0.83
0.77
0.67
0.60
0.58
0.52
0.49
0.39
0.38
0.36
0.31
0.29
0.26
0.23
0.20
Document 329-1
Revised 10/20/08
Document 329-2
SMT Power Inductors – MSS4020
Typical L vs Current
Typical L vs Frequency
1000
100
Inductance (µH)
Inductance (µH)
1000
100 µH
22 µH
10
100 µH
100
22 µH
10
3.3 µH
3.3 µH
1
0.1
10
1
1
0.01
1
0.1
Current (A)
10
Frequency (MHz)
Current Derating
120
110
90
80
70
60
50
40
25°C
Percent of rated Irms
100
30
20
10
0
-40
-20
0
20
40
60
80
100
120 140
Ambient temperature (°C)
0.059
1,5
0.031
typ
0,8
0.158 ±0.012
4,0 ±0,3
Dimensions are in
0.055
1,4
0.079
max
2,0
0.158 ±0.012
4,0 ±0,3
0.173
typ
4,4
Recommended
Land Pattern
inches
mm
Specifications subject to change without notice.
Please check our website for latest information.
© Coilcraft, Inc. 2009
0.150
3,8
Document 329-2
Revised 10/20/08
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