Document 327-1
SMT Power Inductors – MLC Series
• Soft saturation makes them ideal for VRD/VRM applications
• 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
L
2
±20%
(µH)
DCR
Isat
(A)
4
(mOhm)
3
10%
SRF
20%
typ max (MHz) drop drop
1.03
1.03
1.03
1.91
1.37
2.59
2.83
2.62
2.62
2.62
4.49
3.13
9.00
234
228
219
198
134
151
108
93
85
76
79
72
46
26.9
21.0
21.1
16.5
16.4
13.3
13.9
14.0
14.1
10.8
10.7
12.1
7.42
32.8
21.3
20.8
27.4
17.8
13.6
16.1
18.9
13.4
15.2
10.9
13.7
11.1
7.12
42.6
35.2
34.5
24.9
27.5
21.7
22.8
23.3
22.4
17.7
17.3
19.2
11.8
54.0
38.1
35.7
47.4
28.7
21.2
27.3
30.1
21.0
24.2
17.7
22.3
18.1
11.8
Irms
(A)
5
Height
20°C 40°C max
rise
rise (mm)
16.5
16.3
16.8
12.8
15.2
12.4
11.9
12.3
12.4
11.7
10.3
10.9
6.9
18.0
18.6
16.1
17.4
14.6
11.5
13.9
13.7
10.6
11.6
11.5
10.7
10.9
8.43
22.7
21.9
24.1
19.8
21.0
17.3
16.3
17.6
17.5
16.5
14.2
15.3
9.8
25.6
26.9
22.3
24.6
20.6
16.7
19.7
19.9
14.6
16.3
15.8
15.2
15.6
11.7
6.5
6.1
5.6
4.1
6.5
5.1
4.1
6.1
5.6
5.3
4.6
6.1
4.8
6.5
6.5
5.6
6.5
6.0
3.9
5.2
6.5
3.9
6.5
5.2
6.5
5.6
5.2
1. Please specify
termination
and
packaging
codes:
MLC1550-452MLC
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
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.
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.
6. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components”
before soldering.
Part number
1
10.5 mm × 11.4 mm body size
MLC1265-361ML_
0.36
0.93
MLC1260-401ML_
0.40
0.93
MLC1255-421ML_
0.42
0.93
MLC1240-451ML_
0.45
1.73
MLC1265-701ML_
MLC1250-801ML_
MLC1240-901ML_
MLC1260-122ML_
MLC1255-122ML_
MLC1250-132ML_
MLC1245-152ML_
MLC1260-172ML_
MLC1245-402ML_
0.70
0.80
0.90
1.20
1.20
1.30
1.50
1.75
4.00
1.24
2.35
2.57
2.38
2.38
2.38
4.08
2.84
8.18
13.2 mm × 14.0 mm body size
MLC1565-451ML_
0.45
0.864
MLC1565-501ML_
0.50
0.864
MLC1555-551ML_
0.55
1.34
MLC1565-801ML_
0.80
1.20
MLC1560-901ML_
MLC1538-102ML_
MLC1550-102ML_
MLC1565-142ML_
MLC1538-152ML_
MLC1565-202ML_
MLC1550-252ML_
MLC1565-282ML_
MLC1555-302ML_
MLC1550-452ML_
0.90
1.00
1.00
1.40
1.50
2.00
2.50
2.80
3.00
4.50
1.72
3.46
1.72
2.20
4.36
3.56
3.43
4.10
4.06
7.13
0.951 158
0.951 132
1.48 165
1.32
93
1.90
3.81
1.90
2.42
4.80
3.82
3.74
4.51
4.47
7.85
101
81
76
77
50
64
45
44
42
36
Specifications subject to change without notice.
Please check our website for latest information.
Document 327-1
Revised 07/23/09
© Coilcraft, Inc. 2009
Document 327-2
SMT Power Inductors - MLC Series
Typical L vs Frequency
10
MLC1550-452
Typical L vs Current
10
MLC1550-452
MLC1565-282
Inductance (µH)
Inductance (µH)
MLC1565-282
MLC1538-152
MLC1538-152
1
MLC1538-102
MLC1555-551
MLC1265-361
1
MLC1538-102
MLC1555-551
MLC1265-361
0.1
0.01
0.1
1
10
0.1
0.1
1
10
100
Frequency (MHz)
Current (A)
Inductance vs current is unaffected by part temperature up to 135°C.
Dimensions
MLCxxxx
-xxxMLC
B
Temperature Rise vs Current
MLC
155
0-45
2
ML
ML
C1538
ML
C156
-152
C1
5-2
53
82
8-1
02
0
5
10
15
70
Temperature rise (from 25°C)
60
50
40
30
20
10
0
A
C
Recommended
Land Pattern
D
E
H
F
G
F
ML
C
ML
155
C1
5-5
26
51
5-
36
1
20
25
Current (A rms)
Weight:
MLC12XX 1.91 – 3.03 g; MLC15XX 2.73 – 4.72 g
Body
A
B
Size
max
max
1240
11.2
10.5
1245
11.2
10.5
1250
11.2
10.5
1255
11.4
10.5
1260
11.4
10.5
1265
11.4
10.5
1538
13.8
13.2
1550
13.8
13.2
1555
13.8
13.2
1560
13.8
13.2
1565
14.0
13.2
All dimensions are in mm.
C
max
4.1
4.6
5.1
5.6
6.1
6.5
3.9
5.2
5.6
6.0
6.5
D
1.8
1.8
1.8
1.8
1.8
1.8
2.4
2.4
2.4
2.4
2.4
E
2.3
2.3
2.3
2.3
2.3
2.3
3.0
3.0
3.0
3.0
3.0
F
4.0
4.0
4.0
4.0
4.0
4.0
5.0
5.0
5.0
5.0
5.0
G
4.0
4.0
4.0
4.0
4.0
4.0
5.4
5.4
5.4
5.4
5.4
H
2.7
2.7
2.7
2.7
2.7
2.7
3.4
3.4
3.4
3.4
3.4
Tape and Reel
MLC1240
MLC1245
MLC1250
MLC1255
MLC1260
MLC1265
MLC1538
MLC1550
MLC1555
MLC1560
MLC1565
250/7″ reel;
200/7″ reel;
200/7″ reel;
200/7″ reel;
175/7″ reel;
150/7″ reel;
200/7″ reel;
150/7″ reel;
150/7″ reel;
150/7″ reel;
125/7″ reel;
900/13″ reel
800/13″ reel
700/13″ reel
700/13″ reel
600/13″ reel
600/13″ reel
800/13″ reel
600/13″ reel
500/13″ reel
500/13″ reel
500/13″ reel
24 mm tape width
24 mm tape width
24 mm tape width
24 mm tape width
24 mm tape width
24 mm tape width
24 mm tape width
24 mm tape width
24 mm tape width
24 mm tape width
24 mm tape width
7″ reels are stocked; 13″ reels are factory orders only.
For packaging data see Tape and Reel Specifications section.
Specifications subject to change without notice.
Please check our website for latest information.
Document 327-2
Revised 07/23/09
© Coilcraft, Inc. 2009
Microcontroller MCU
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