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Document 356-1
SMT Power Inductors
–
SD43 Series
• Rugged, cost-effective power inductors
• Excellent current handling; low DCR
• Values greater than 27 µH are 10ꢀ tolerance
Core material Ferrite
Terminations RoHS compliant tin-silver-copper solder over tin over
nickel over silver plating.
Weight 0.17 – 0.20 g
Ambient temperature –40°C to +85°C with (40°C rise) Irms current.
Maximum part temperature +125°C (ambient + temp rise). Derating.
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 /
85ꢀ relative humidity)
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.
Isat (A)4
20% drop 30% drop
Irms (A)5
20°C rise 40°C rise
Part
Inductance2
(µH)
DCR max
(mOhm)
SRF typ3
(MHz)
number1
10% drop
SD43-102ML_
SD43-142ML_
SD43-182ML_
SD43-222ML_
SD43-272ML_
1.0 20ꢀ
1.4 20ꢀ
1.8 20ꢀ
2.2 20ꢀ
2.7 20ꢀ
33
38
42
47
52
100
90
80
65
60
5.5
4.8
4.1
3.6
3.4
6.1
5.5
4.6
4.1
3.8
6.5
5.9
5.1
4.4
4.1
3.4
3.1
2.7
2.3
2.2
5.8
5.8
4.6
3.8
3.7
SD43-332ML_
SD43-392ML_
SD43-472ML_
SD43-562ML_
SD43-682ML_
3.3 20ꢀ
3.9 20ꢀ
4.7 20ꢀ
5.6 20ꢀ
6.8 20ꢀ
58
50
47
45
40
35
2.9
2.6
2.4
2.2
2.0
3.3
3.0
2.8
2.5
2.3
3.5
3.2
3.0
2.7
2.5
2.1
1.9
1.9
1.6
1.5
3.3
3.0
2.9
2.8
2.5
76
94
101
110
SD43-822ML_
SD43-103ML_
SD43-123ML_
SD43-153ML_
SD43-183ML_
8.2 20ꢀ
10.0 20ꢀ
12.0 20ꢀ
15.0 20ꢀ
18.0 20ꢀ
132
182
210
235
338
30
28
24
22
19
1.83
1.70
1.53
1.33
1.25
2.1
2.2
1.4
1.3
1.1
1.0
0.89
2.2
2.2
1.8
1.7
1.5
1.95
1.75
1.58
1.43
2.1
1.90
1.73
1.58
SD43-223ML_
SD43-273ML_
SD43-333KL_
SD43-393KL_
SD43-473KL_
22.0 20ꢀ
27.0 20ꢀ
33.0 10ꢀ
39.0 10ꢀ
47.0 10ꢀ
378
522
540
587
844
17
16
14
13
12
1.15
1.00
0.90
0.84
0.77
1.32
1.14
1.05
0.97
0.87
1.43
1.26
1.14
1.07
0.93
0.85
0.73
0.62
0.61
0.53
1.4
1.1
0.90
0.90
0.86
SD43-563KL_
SD43-683KL_
56.0 10ꢀ
68.0 10ꢀ
937
1117
11
10
0.72
0.65
0.80
0.72
0.86
0.77
0.51
0.43
0.70
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.
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 that causes the specified temperature rise from 25°C ambient.
This information is for reference only and does not represent absolute
maximum ratings. Click for temperature derating information.
SD43-683KLC
Packaging: C = 7″ machine-ready reel. EIA-481 embossed plastic
tape (500 parts per full reel). Quantities less than full
reel available: in tape (not machine ready) or with
leader and trailer ($25 charge).
B = Less than full reel. In an effort to simplify our part
numbering system, Coilcraft is eliminating the need
for multiple packaging codes. When ordering, simply
change the last letter of your part number from B to C.
D = 13″ machine-ready reel. EIA-481 embossed plastic
tape. Factory order only, not stocked (2000 parts
per full reel).
6. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
Document 356-1 Revised 07/05/23
US +1-847-639-6400 sales@coilcraft.com
UK +44-1236-730595 sales@coilcraft-europe.com
Taiwan +886-2-2264 3646 sales@coilcraft.com.tw
China +86-21-6218 8074 sales@coilcraft.com.cn
Singapore + 65-6484 8412 sales@coilcraft.com.sg
© Coilcraft Inc. 2023
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.
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