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SD43 Series
Surface Mount Power Inductors

  • Rugged cost-effective power inductors
  • Current rating up to 6.5 Amps
  • Low DC resistance for greater efficiency
  • RoHS-compliant. 260°C compatible. RoHS compliant tin-silver over tin over nickel over silver
  • 10% tolerance for values >27 µH

SPECIFICATIONS


Part number1
Click to get parts
Inductance2
(µH)
DCR max3
(mOhms)
SRF typ4
(MHz)
Isat (A)5 Irms (A)6
10% drop 20% drop 30% drop 20° rise 40° 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: e.g. SD43-104KLC
Packaging: C = 7" machine-ready reel
EIA RS-481 clear plastic tape (500 parts per full reel).
B = Less than full reel
In tape, not machine ready. To have a leader and trailer added ($25 charge), use code letter C instead.
D = 13" reel, machine-ready 
EIA RS-481 clear plastic tape. Factory order only, not stocked (2000 parts per full reel).
2 Inductance measured at 100 kHz, 0.1 Vrms using an Agilent/HP 4284A impedance analyzer or equivalent.
3 DCR measured at 25°C. For other operating temperatures, use this DCR at Temperature calculator.
4 SRF measured using Agilent/HP 8753D network analyzer and Coilcraft SMD-D test fixture. Details
5 Isat: DC current at 25°C that causes the specified inductance drop from its value without current.
Temperature derating curves.
6 Irms: Current that causes the specified temperature rise from 25°C ambient. This information is for reference only and does not represent absolute maximum ratings. Temperature derating curves.
7 Ambient temperature range: −40°C to +85°C with (40°C rise) Irms Derating curves
8 Storage temperature range: Component: −40°C to +125°C
Tape and reel packaging: −40°C to +80°C
9 Maximum part temperature: +125°C (Ambient + temperature rise)
10 Resistance to soldering heat: Three reflows at >217°C for 90 seconds (+260°C ±5°C for 20 – 40 seconds), allowing parts to cool to room temperature between.
11 Electrical specifications at 25°C.
Refer to Soldering Coilcraft Components before soldering.
PCB washing: Tested to MIL-STD-202 Method 215 plus an additional aqueous wash. More info.

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Updated: April 13, 2017