Document 356-1
SMT Power Inductors SD43 Series
Rugged, cost-effective power inductors
Excellent current handling; low DCR
Values greater than 27 H are 10% tolerance
Core material Ferrite
Terminations RoHS compliant tin-silver over tin over nickel over silver.
Weight 0.17 0.20 mg
Ambient temperature 40C to +85C with Irms current, +85C to
+125C with derated current
Storage temperature Component: 40C to +85C.
Tape and reel packaging: 40C to +80C
Resistance to soldering heat Max three 40 second reflows at
+260C, parts cooled to room temperature between cycles
Moisture Sensitivity Level (MSL) 1 (unlimited floor life at <30C /
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 500/7 reel; 2000/13 reel; Plastic tape: 12 mm wide,
0.35 mm thick, 8 mm pocket spacing, 3.4 mm pocket depth
PCB washing Tested to MIL-STD-202 Method 215 plus an additional
aqueous wash. See Doc787_PCB_Washing.pdf.
4 5
Isat (A) Irms (A)
2 3
Part Inductance DCR max SRF typ
1
number (H) (mOhm) (MHz) 10% drop 20% drop 30% drop 20C rise 40C rise
SD43-102ML_ 1.0 20% 33 100 5.5 6.1 6.5 3.4 5.8
SD43-142ML_ 1.4 20% 38 90 4.8 5.5 5.9 3.1 5.8
SD43-182ML_ 1.8 20% 42 80 4.1 4.6 5.1 2.7 4.6
SD43-222ML_ 2.2 20% 47 65 3.6 4.1 4.4 2.3 3.8
SD43-272ML_ 2.7 20% 52 60 3.4 3.8 4.1 2.2 3.7
SD43-332ML_ 3.3 20% 58 50 2.9 3.3 3.5 2.1 3.3
SD43-392ML_ 3.9 20% 76 47 2.6 3.0 3.2 1.9 3.0
SD43-472ML_ 4.7 20% 94 45 2.4 2.8 3.0 1.9 2.9
SD43-562ML_ 5.6 20% 101 40 2.2 2.5 2.7 1.6 2.8
SD43-682ML_ 6.8 20% 110 35 2.0 2.3 2.5 1.5 2.5
SD43-822ML_ 8.2 20% 132 30 1.83 2.1 2.2 1.4 2.2
SD43-103ML_ 10.0 20% 182 28 1.70 1.95 2.1 1.3 2.2
SD43-123ML_ 12.0 20% 210 24 1.53 1.75 1.90 1.1 1.8
SD43-153ML_ 15.0 20% 235 22 1.33 1.58 1.73 1.0 1.7
SD43-183ML_ 18.0 20% 338 19 1.25 1.43 1.58 0.89 1.5
SD43-223ML_ 22.0 20% 378 17 1.15 1.32 1.43 0.85 1.4
SD43-273ML_ 27.0 20% 522 16 1.00 1.14 1.26 0.73 1.1
SD43-333KL_ 33.0 10% 540 14 0.90 1.05 1.14 0.62 0.90
SD43-393KL_ 39.0 10% 587 13 0.84 0.97 1.07 0.61 0.90
SD43-473KL_ 47.0 10% 844 12 0.77 0.87 0.93 0.53 0.86
SD43-563KL_ 56.0 10% 937 11 0.72 0.80 0.86 0.51 0.70
SD43-683KL_ 68.0 10% 1117 10 0.65 0.72 0.77 0.43 0.60
1. When ordering, please specify packaging code: 2. Inductance measured at 100 kHz, 0.1 Vrms, 0 Adc using an Agilent/
HP 4284A impedance analyzer.
SD43-683KLC
3. SRF measured using Agilent/HP 8753D network analyzer and Coilcraft
Packaging: C = 7 machine-ready reel. EIA-481 embossed plastic SMD- D test fixture.
tape (500 parts per full reel).
4 DC current at which the inductance drops the specified amount from its
B = Less than full reel. In tape, but not machine ready.
value without current.
To have a leader and trailer added ($25 charge),
5. Current the causes the specified temperature rise from25C ambient.
use code letter C instead.
6. Electrical specifications at 25C.
D = 13 machine-ready reel. EIA-481 embossed plastic
Refer to Doc 362 Soldering Surface Mount Components before soldering.
tape. Factory order only, not stocked (2000 parts
per full reel).
Document 356-1 Revised 12/12/14Document 356-2
SMT Power Inductors SD43 Series
Typical L vs Current Typical L vs Frequency
1000 1000
100 100
68 H 68 H
27 H
27 H
8.2 H 8.2 H
10 10
3.3 H
3.3 H
1.0 H
1.0 H
1
1
0.1 0.1
0.01 0.1 1 10 1 10
0.01 0.1
Current (A) Frequency (MHz)
0.185
max
Irms Derating
4,70
120
110
0.165
100 max
4,20
XXX
90
80
70
60
0.136
50
max
3,45
40
30
Recommended
20
Land Pattern
0.063
10
1,60
0.061
0
1,55
-40 -20 020406080 100 120 140
Ambient temperature (C)
0.085 0.102
2,15 2,60
0.129
3,28
0.051
1,30
inches
Dimensions are in
mm
Document 356-2 Revised 12/12/14
Percent of rated Irms Inductance (H)
25C
Inductance (H)