MLC1770

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
Part number1
Inductance2
±20% (µH)
MLC1770-801ME_
MLC1770-142ME_
MLC1770-202ME_
MLC1770-282ME_
0.80
1.40
2.00
2.80
DCR (mOhm)
typ max
4
Irms (A)5
typ3 Isat (A) (MHz)
10% drop 20% drop 30% drop 20°C rise 40°C rise
SRF
1.151.30
1.802.00
2.703.00
3.604.00
1. When ordering, please specify termination and packaging codes:
MLC1770-282MEC
Termination:E=RoHS compliant tin-silver over copper
Special order, added cost: T = RoHS tin-silvercopper (95.5/4/0.5) or
S = non-RoHS tin-lead (63/37).
Packaging:D
=13″ machine-ready reel. EIA‑481 embossed plastic
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.
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.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
72
59
49
41
28.40
20.52
14.20
13.00
49.9264.8820.36
28.92
35.6451.4416.10
24.06
24.8037.0012.98
19.12
22.8033.8011.56
15.80
Core material Iron
Core and winding loss Go to core loss calculator
Environmental RoHS compliant, halogen free
Weight 7.8 – 8.0 g
Terminations RoHS compliant tin-silver (96.5/3.5) over copper. Other
terminations available at additional cost.
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.
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
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 to MIL-STD-202 Method 215 plus an additional
aqueous wash. See Doc787_PCB_Washing.pdf.
Document 961-1 Revised 06/03/15
Document 961-2
Shielded Power Inductors – MLC1770
L vs Current
L vs Frequency
10
2.8 µH
2.0 µH
Inductance (µH)
Inductance (µH)
10
1.4 µH
1
0.1
0.80 µH
0.1
10
1
100
Part
number
MLC1770
–xxxME
Internal
code
XXXX Y
0.661
16,8 max
XXXX Y
1.4 µH
1
0.1
0.80 µH
0.01
1
0.1
10
Frequency (MHz)
Current (A)
MLC1770
–xxxME
2.8 µH
2.0 µH
Part Marking
0.642
16,3 max
0.276
7,0 max
0.165
4,2
0.116
2,95
0.248
6,3
0.165
4,2
0.232
5,9
0.248
6,3
Recommended
Land Pattern
Dimensions are in
inches
mm
Document 961-2 Revised 06/03/15