Document 327-1
SMT Power Inductors
–
MLC Series
• SoftsaturationmakesthemidealforVRD/VRMapplications
• Special materials eliminate all thermal aging issues.
Designer’s Kit C387 contains samples of all values
Core material Iron
Core and winding loss See www.coilcraft.com/coreloss
Terminations RoHS tin-silver over copper. Other terminations
available at additional cost.
Weight MLC12XX 1.91 – 3.03 g; MLC15XX 2.73 – 4.72 g
Ambient temperature –40°C to +85°C with Irms current
Maximum part temperature: The part may be operated without
damage as long its temperature (ambient + self-heating) does not
exceed +125°C.
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
PCB washing Only pure water or alcohol recommended
Irms (A)5
1. Please specify termination and packaging codes:
DCR
Isat (A)4
L2
±20%
(µH)
Height
(mOhm)
SRF3 10% 20%
20°C 40°C max
MLC1550-452MLC
Partnumber1
typ max (MHz) drop drop
rise
rise (mm)
Termination: L= RoHS compliant tin-silver over copper.
Special order:
T = RoHS tin-silver-copper (95.5/4/0.5)
or S = non-RoHS tin-lead (63/37).
Packaging: C= 7″ machine-ready reel. EIA-481
10.5 mm × 11.4 mm body size
MLC1265-361ML_
MLC1260-401ML_
MLC1255-421ML_
MLC1240-451ML_
0.36
0.40
0.42
0.45
0.93 1.03 234 26.9 42.6
0.93 1.03 228 21.0 35.2
0.93 1.03 219 21.1 34.5
1.73 1.91 198 16.5 24.9
16.5 22.7
16.3 21.9
16.8 24.1
12.8 19.8
6.5
6.1
5.6
4.1
embossed plastic tape.
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. EIA-481
embossed plastic tape. Factory order
only, not stocked.
MLC1265-701ML_
MLC1250-801ML_
MLC1240-901ML_
MLC1260-122ML_
MLC1255-122ML_
0.70
0.80
0.90
1.20
1.20
1.24 1.37 134 16.4 27.5
2.35 2.59 151 13.3 21.7
2.57 2.83 108 13.9 22.8
15.2 21.0
12.4 17.3
11.9 16.3
12.3 17.6
12.4 17.5
6.5
5.1
4.1
6.1
5.6
2.38 2.62
2.38 2.62
93 14.0 23.3
85 14.1 22.4
MLC1250-132ML_
MLC1245-152ML_
MLC1260-172ML_
MLC1245-402ML_
1.30
1.50
1.75
4.00
2.38 2.62
4.08 4.49
2.84 3.13
8.18 9.00
76 10.8 17.7
79 10.7 17.3
72 12.1 19.2
11.7 16.5
10.3 14.2
10.9 15.3
5.3
4.6
6.1
4.8
2. Inductance measured at 100 kHz, 0.1 Vrms, 0 Adc
using a Coilcraft SMD-A fixture in an Agilent/HP 4284A
LCR meter.
3. SRF measured using an Agilent/HP4291A impedance
analyzer and a Coilcraft 16193 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.
46
7.42 11.8
6.9
9.8
13.2 mm × 14.0 mm body size
MLC1565-451ML_
MLC1565-501ML_
MLC1555-551ML_
MLC1565-801ML_
0.45
0.50
0.55
0.80
0.864 0.951 158 32.8 54.0
0.864 0.951 132 21.3 38.1
1.34 1.48 165 20.8 35.7
18.0 25.6
18.6 26.9
16.1 22.3
17.4 24.6
6.5
6.5
5.6
6.5
1.20 1.32
93 27.4 47.4
6. Electrical specifications at 25°C.
MLC1560-901ML_
MLC1538-102ML_
MLC1550-102ML_
MLC1565-142ML_
MLC1538-152ML_
0.90
1.00
1.00
1.40
1.50
1.72 1.90 101 17.8 28.7
14.6 20.6
11.5 16.7
13.9 19.7
13.7 19.9
10.6 14.6
6.0
3.9
5.2
6.5
3.9
Refer to Doc 362 “Soldering Surface Mount Components”
before soldering.
3.46 3.81
1.72 1.90
2.20 2.42
4.36 4.80
81 13.6 21.2
76 16.1 27.3
77 18.9 30.1
50 13.4 21.0
MLC1565-202ML_
MLC1550-252ML_
MLC1565-282ML_
MLC1555-302ML_
MLC1550-452ML_
2.00
2.50
2.80
3.00
4.50
3.56 3.82
3.43 3.74
4.10 4.51
4.06 4.47
7.13 7.85
64 15.2 24.2
45 10.9 17.7
44 13.7 22.3
42 11.1 18.1
11.6 16.3
11.5 15.8
10.7 15.2
10.9 15.6
8.43 11.7
6.5
5.2
6.5
5.6
5.2
36
7.12 11.8
Specifications subject to change without notice.
Please check our website for latest information.
Document327-1 Revised07/23/09
© Coilcraft, Inc. 2009