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SD43 Series

Surface Mount Power Inductors

RoHS compliant
Coilcraft SD43 Series unshielded surface-mount power inductors are mechanically rugged and affordably priced. They offer high current ratings and low DC resistance for  greater efficiency.
  • Open magnetic path design
  • Cost-effective solution
  • Ferrite core construction
  • High saturation current ratings and low DCR

Buy Now:
Count Unit price
1 $1.03
250 $0.83
500 $0.51
1000 $0.40
2500 $0.34
5000 $0.31

For high volume or non-stock items, request a quote.

. in stock, ready to ship today.
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Specifications

Electrical specifications at 25°C.

Part number 1 Inductance (µH) 2 Tolerance (%) DCR max (mΩ) 3 SRF typ (MHz) 4 Isat (A) 5 Irms (A) 6
10% drop 20% drop 30% drop 20°C rise 40°C rise
SD43-102ML_ 1.0 20 33.0 100 5.5 6.1 6.5 3.4 5.8
SD43-142ML_ 1.4 20 38.0 90.0 4.8 5.5 5.9 3.1 5.8
SD43-182ML_ 1.8 20 42.0 80.0 4.1 4.6 5.1 2.7 4.6
SD43-222ML_ 2.2 20 47.0 65.0 3.6 4.1 4.4 2.3 3.8
SD43-272ML_ 2.7 20 52.0 60.0 3.4 3.8 4.1 2.2 3.7
SD43-332ML_ 3.3 20 58.0 50.0 2.9 3.3 3.5 2.1 3.3
SD43-392ML_ 3.9 20 76.0 47.0 2.6 3.0 3.2 1.9 3.0
SD43-472ML_ 4.7 20 94.0 45.0 2.4 2.8 3.0 1.9 2.9
SD43-562ML_ 5.6 20 101 40.0 2.2 2.5 2.7 1.6 2.8
SD43-682ML_ 6.8 20 110 35.0 2.0 2.3 2.5 1.5 2.5
SD43-822ML_ 8.2 20 132 30.0 1.8 2.1 2.2 1.4 2.2
SD43-103ML_ 10 20 182 28.0 1.7 2.0 2.1 1.3 2.2
SD43-123ML_ 12 20 210 24.0 1.5 1.8 1.9 1.1 1.8
SD43-153ML_ 15 20 235 22.0 1.3 1.6 1.7 1.0 1.7
SD43-183ML_ 18 20 338 19.0 1.3 1.4 1.6 0.89 1.5
SD43-223ML_ 22 20 378 17.0 1.2 1.3 1.4 0.85 1.4
SD43-273ML_ 27 20 522 16.0 1.0 1.1 1.3 0.73 1.1
SD43-333KL_ 33 10 540 14.0 0.90 1.1 1.1 0.62 0.90
SD43-393KL_ 39 10 587 13.0 0.84 0.97 1.1 0.61 0.90
SD43-473KL_ 47 10 844 12.0 0.77 0.87 0.93 0.53 0.86
SD43-563KL_ 56 10 937 11.0 0.72 0.80 0.86 0.51 0.70
SD43-683KL_ 68 10 1117 10.0 0.65 0.72 0.77 0.43 0.60
Notes
  1. When ordering, please specify packaging code: e.g. SD43-683KLC
  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.

Termination:

  • RoHS compliant tin-silver-copper solder over tin over nickel over silver plating.

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).
Environmental
Environmental:
RoHS compliant
Ambient temperature range:
−40°C to +85°C with (40°C rise) Irms
Storage temperature range:
Component: –40°C to +125°C.
Tape and reel packaging: –40°C to +80°C
Maximum part temperature:
+125°C (Ambient + temperature rise)
Failures in Time (FIT) / Mean Time Between Failures (MTBF):

Performance curves

Inductance vs. Current

Inductance vs. Frequency

Physical characteristics

sd43d.gif

dims_inches_mm.gif

Tape and Reel specification

tapereel_pl.gif


 
Parts per reel Reel dimensions (mm) Tape dimensions (mm) Orientation
7" (178 mm) 13" (330 mm) A B C D E W P Po P1 H T part_or_q.gif
500 2000* 178/330 60/100 13 18,4 12,4 12 8 4 2 3,4 0,35
* Special order
 

General specification

Core Material:
Ferrite
Weight:
0.17 – 0.20 g
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

Soldering/Washing

Moisture Sensitivity Level (MSL):
1 (unlimited floor life at <30°C / 85% relative humidity)
Resistance to soldering heat:
Max three 40 second reflows at +260°C, parts cooled to room temperature between cycles
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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