© Coilcraft, Inc. 2009
Specifications subject to change without notice.
Please check our website for latest information.
SMT Power Inductors
–
MLC Series
Document 327-1
Document 327-1 Revised 07/23/09
L2DCR Isat (A)4Irms (A)5Height
±20% (mOhm) SRF310% 20% 20°C 40°C max
Part number1(µH) typ max (MHz) drop drop rise rise (mm)
10.5 mm × 11.4 mm body size
MLC1265-361ML_ 0.36 0.93 1.03 234 26.9 42.6 16.5 22.7 6.5
MLC1260-401ML_ 0.40 0.93 1.03 228 21.0 35.2 16.3 21.9 6.1
MLC1255-421ML_ 0.42 0.93 1.03 219 21.1 34.5 16.8 24.1 5.6
MLC1240-451ML_ 0.45 1.73 1.91 198 16.5 24.9 12.8 19.8 4.1
MLC1265-701ML_ 0.70 1.24 1.37 134 16.4 27.5 15.2 21.0 6.5
MLC1250-801ML_ 0.80 2.35 2.59 151 13.3 21.7 12.4 17.3 5.1
MLC1240-901ML_ 0.90 2.57 2.83 108 13.9 22.8 11.9 16.3 4.1
MLC1260-122ML_ 1.20 2.38 2.62 93 14.0 23.3 12.3 17.6 6.1
MLC1255-122ML_ 1.20 2.38 2.62 85 14.1 22.4 12.4 17.5 5.6
MLC1250-132ML_ 1.30 2.38 2.62 76 10.8 17.7 11.7 16.5 5.3
MLC1245-152ML_ 1.50 4.08 4.49 79 10.7 17.3 10.3 14.2 4.6
MLC1260-172ML_ 1.75 2.84 3.13 72 12.1 19.2 10.9 15.3 6.1
MLC1245-402ML_ 4.00 8.18 9.00 46 7.42 11.8 6.9 9.8 4.8
13.2 mm × 14.0 mm body size
MLC1565-451ML_ 0.45 0.864 0.951 158 32.8 54.0 18.0 25.6 6.5
MLC1565-501ML_ 0.50 0.864 0.951 132 21.3 38.1 18.6 26.9 6.5
MLC1555-551ML_ 0.55 1.34 1.48 165 20.8 35.7 16.1 22.3 5.6
MLC1565-801ML_ 0.80 1.20 1.32 93 27.4 47.4 17.4 24.6 6.5
MLC1560-901ML_ 0.90 1.72 1.90 101 17.8 28.7 14.6 20.6 6.0
MLC1538-102ML_ 1.00 3.46 3.81 81 13.6 21.2 11.5 16.7 3.9
MLC1550-102ML_ 1.00 1.72 1.90 76 16.1 27.3 13.9 19.7 5.2
MLC1565-142ML_ 1.40 2.20 2.42 77 18.9 30.1 13.7 19.9 6.5
MLC1538-152ML_ 1.50 4.36 4.80 50 13.4 21.0 10.6 14.6 3.9
MLC1565-202ML_ 2.00 3.56 3.82 64 15.2 24.2 11.6 16.3 6.5
MLC1550-252ML_ 2.50 3.43 3.74 45 10.9 17.7 11.5 15.8 5.2
MLC1565-282ML_ 2.80 4.10 4.51 44 13.7 22.3 10.7 15.2 6.5
MLC1555-302ML_ 3.00 4.06 4.47 42 11.1 18.1 10.9 15.6 5.6
MLC1550-452ML_ 4.50 7.13 7.85 36 7.12 11.8 8.43 11.7 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.
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
• Soft saturation makes them ideal for VRD/VRM applications
• Special materials eliminate all thermal aging issues.
© Coilcraft, Inc. 2009
SMT Power Inductors - MLC Series
Specifications subject to change without notice.
Please check our website for latest information.
Document 327-2
Document 327-2 Revised 07/23/09
Typical L vs Frequency
0.01 0.1 110
0.1
1
10
Inductance (µH)
0.01 0.1 110
Frequency (MHz)
MLC1538-152
MLC1550-452
MLC1555-551
MLC1265-361
MLC1538-102
MLC1565-282
0.1 1
0.1
1
10
Inductance (µH)
10 100
Current (A)
MLC1538-152
MLC1550-452
MLC1555-551
MLC1265-361
MLC1538-102
MLC1565-282
Typical L vs Current
A
B
D
C
EF
F
G
H
Recommended
Land Pattern
MLCxxxx
- MLCxxx
Dimensions Temperature Rise vs Current
70
60
50
40
30
20
0
10
Temperature rise (from 25°C)
Current (A rms)
5015252010
MLC1550-452
MLC1265-361
MLC1555-551
MLC1538-102
MLC1538-152
MLC1565-282
Tape and Reel
MLC1240 250/7″ reel; 900/13″ reel 24 mm tape width
MLC1245 200/7″ reel; 800/13″ reel 24 mm tape width
MLC1250 200/7″ reel; 700/13″ reel 24 mm tape width
MLC1255 200/7″ reel; 700/13″ reel 24 mm tape width
MLC1260 175/7″ reel; 600/13″ reel 24 mm tape width
MLC1265 150/7″ reel; 600/13″ reel 24 mm tape width
MLC1538 200/7″ reel; 800/13″ reel 24 mm tape width
MLC1550 150/7″ reel; 600/13″ reel 24 mm tape width
MLC1555 150/7″ reel; 500/13″ reel 24 mm tape width
MLC1560 150/7″ reel; 500/13″ reel 24 mm tape width
MLC1565 125/7″ reel; 500/13″ reel 24 mm tape width
7″ reels are stocked; 13″ reels are factory orders only.
For packaging data see Tape and Reel Specifications section.
Inductance vs current is unaffected by part temperature up to 135°C.
Weight: MLC12XX 1.91 – 3.03 g; MLC15XX 2.73 – 4.72 g
Body A B C
Size max max max D E F G H
1240 11.2 10.5 4.1 1.8 2.3 4.0 4.0 2.7
1245 11.2 10.5 4.6 1.8 2.3 4.0 4.0 2.7
1250 11.2 10.5 5.1 1.8 2.3 4.0 4.0 2.7
1255 11.4 10.5 5.6 1.8 2.3 4.0 4.0 2.7
1260 11.4 10.5 6.1 1.8 2.3 4.0 4.0 2.7
1265 11.4 10.5 6.5 1.8 2.3 4.0 4.0 2.7
1538 13.8 13.2 3.9 2.4 3.0 5.0 5.4 3.4
1550 13.8 13.2 5.2 2.4 3.0 5.0 5.4 3.4
1555 13.8 13.2 5.6 2.4 3.0 5.0 5.4 3.4
1560 13.8 13.2 6.0 2.4 3.0 5.0 5.4 3.4
1565 14.0 13.2 6.5 2.4 3.0 5.0 5.4 3.4
All dimensions are in mm.
