SD43

Document 356-1
SMT Power Inductors – SD43 Series
• Rugged, cost-effective power inductors
• Excellent current handling; low DCR
• Values greater than 27 µH 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 –40°C to +85°C with Irms current, +85°C to
+125°C with derated current
Storage temperature Component: –40°C to +85°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 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.
Part number1
SD43-102ML_
SD43-142ML_
SD43-182ML_
SD43-222ML_
SD43-272ML_
SD43-332ML_
SD43-392ML_
SD43-472ML_
SD43-562ML_
SD43-682ML_
SD43-822ML_
SD43-103ML_
SD43-123ML_
SD43-153ML_
SD43-183ML_
SD43-223ML_
SD43-273ML_
SD43-333KL_
SD43-393KL_
SD43-473KL_
SD43-563KL_
SD43-683KL_
Inductance2
(µH)
DCR max
(mOhm) 1.0 ±20%
1.4 ±20%
1.8 ±20%
2.2 ±20%
2.7 ±20%
3.3 ±20%
3.9 ±20%
4.7 ±20%
5.6 ±20%
6.8 ±20%
8.2 ±20%
10.0 ±20%
12.0 ±20%
15.0 ±20%
18.0 ±20%
22.0 ±20%
27.0 ±20%
33.0 ±10%
39.0 ±10%
47.0 ±10%
56.0 ±10%
68.0 ±10%
33
38
42
47
52
58
76
94
101
110
132
182
210
235
338
378
522
540
587
844
937
1117
SRF
typ3
(MHz)
100
90
80
65
60
50
47
45
40
35
30
28
24
22
19
17
16
14
13
12
11
10
1. When ordering, please specify packaging code:
SD43-683KLC
Packaging:C
=7″ machine-ready reel. EIA-481 embossed plastic
tape (500 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 C instead.
D
=13″ machine-ready reel. EIA-481 embossed plastic
tape. Factory order only, not stocked (2000 parts
per full reel).
10% drop
5.5
4.8
4.1
3.6
3.4
2.9
2.6
2.4
2.2
2.0
1.83
1.70
1.53
1.33
1.25
1.15
1.00
0.90
0.84
0.77
0.72
0.65
Isat
(A)4 Irms (A)5
20% drop 30% drop 20°C rise 40°C rise
6.1
5.5
4.6
4.1
3.8
3.3
3.0
2.8
2.5
2.3
2.1
1.95
1.75
1.58
1.43
1.32
1.14
1.05
0.97
0.87
0.80
0.72
6.5
5.9
5.1
4.4
4.1
3.5
3.2
3.0
2.7
2.5
2.2
2.1
1.90
1.73
1.58
1.43
1.26
1.14
1.07
0.93
0.86
0.77
3.4
3.1
2.7
2.3
2.2
2.1
1.9
1.9
1.6
1.5
1.4
1.3
1.1
1.0
0.89
0.85
0.73
0.62
0.61
0.53
0.51
0.43
5.8
5.8
4.6
3.8
3.7
3.3
3.0
2.9
2.8
2.5
2.2
2.2
1.8
1.7
1.5
1.4
1.1
0.90
0.90
0.86
0.70
0.60
2. Inductance measured at 100 kHz, 0.1 Vrms, 0 Adc using an Agilent/
HP 4284A impedance analyzer.
3. SRF measured using Agilent/HP 8753D network analyzer and Coilcraft
SMD­‑D test fixture.
4 DC current at which the inductance drops the specified amount from its
value without current.
5. Current the causes the specified temperature rise from25°C ambient.
6. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
Document 356-1 Revised 12/12/14
Document 356-2
SMT Power Inductors – SD43 Series
Typical L vs Current
Typical L vs Frequency
1000
1000
100
68 µH
Inductance (µH)
Inductance (µH)
100
27 µH
8.2 µH
10
3.3 µH
1.0 µH
1
0.1
0.01
68 µH
27 µH
8.2 µH
10
3.3 µH
1.0 µH
1
1
0.1
10
0.1
0.01
1
0.1
10
Frequency (MHz)
Current (A)
Irms Derating
0.185 max
4,70
120
XXX
110
90
0.165 max
4,20
80
70
60
0.136 max
3,45
50
40
25°C
Percent of rated Irms
100
30
20
Recommended
Land Pattern
0.063
1,60
10
0.061
1,55
0
-40
-20
0
20
40
60
80
100
120 140
Ambient temperature (°C)
0.085
2,15
0.129
3,28
0.051
1,30
Dimensions are in
0.102
2,60
inches
mm
Document 356-2 Revised 12/12/14