Document 961-1
Shielded Power Inductors
–
MLC1770
• Soft saturation makes them ideal for VRD/VRM applications
• Special materials eliminate all thermal aging issues.
• Saturation current up to 64 Amps
DCR (mOhm)
Isat (A)4
±20 drop
Irms (A)5
±2°C rise 42°C rise
Inductance2
±±20 (ꢀµ)
SRF typ3
(Mµz)
Part number1
typ
max
120 drop
320 drop
MLC1770-801ME_
MLC1770-142ME_
MLC1770-202ME_
MLC1770-282ME_
0.80
1.40
2.00
2.80
1.15
1.80
2.70
3.60
1.30
2.00
3.00
4.00
76
60
46
41
28.40
20.52
14.20
13.00
49.92
35.64
24.80
22.80
64.88
51.44
37.00
33.80
20.36
16.10
12.98
11.56
28.92
24.06
19.12
15.80
1. When ordering, please specify termination and packaging codes:
MLC1772-±8±MEC
Core material Iron
Core and winding loss Go to core loss calculator
Environmental RoHS compliant, halogen free
Weight 7.8 – 8.0 g
Termination: E = RoHS compliant tin-silver over copper
Special order, added cost: T = RoHS tin-silver-
copper (95.5/4/0.5) or
Terminations RoHS compliant tin-silver (96.5/3.5) over copper. Other
terminations available at additional cost.
S = non-RoHS tin-lead (63/37).
Packaging: D = 13″ machine-ready reel. EIA-481 embossed plastic
Ambient temperature –40°C to +85°C with Irms current
tape (400 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.
Maximum part temperature: The part may be operated without
damage as long its temperature (ambient + self-heating) does not
exceed +125°C.
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/HP4291A impedance analyzer and an
Agilent/HP 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.
Storage temperature Component: –40°C to +125°C.
Tape and reel 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
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
Packaging 400 per 13″ reel Plastic tape: 24 mm wide, 0.4 mm thick,
24 mm pocket spacing, 7.0 mm pocket depth
PCB washing Tested with pure water or alcohol only. For other solvents,
see Doc787_PCB_Washing.pdf.
Document 961-1 Revised 01/31/14
US +1-847-639-6400 sales@coilcraft.com
UK +44-1236-730595 sales@coilcraft-europe.com
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China +86-21-6218 8074 sales@coilcraft.com.cn
Singapore + 65-6484 8412 sales@coilcraft.com.sg
© Coilcraft Inc. 2014
This product may not be used in medical or high
risk applications without prior Coilcraft approval.
Specification subject to change without notice.
Please check web site for latest information.