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DO5040H Series High Current
Surface Mount Power Inductors

  • Designed for high-current, low-voltage DC-DC converters
  • Saturation current ratings as high as 33.4 A
  • Inductance values 2.8 µH to 1.4 mH
  • Exceptionally low DCR
  • AEC-Q200 Grade 3 (−40°C to +85°C)
  • RoHS-compliant. 260°C compatible. Tin-silver over copper terminations.
  • COTS Plus tin-silver-copper and tin-lead terminations available

SPECIFICATIONS


Part number1
Click to get parts
Inductance2
(µH)
DCR max3
(mOhms)
SRF typ4
(MHz)
Isat5
(A)
Irms6
(A)
DO5040H-282ML_ 2.8 ±20% 5.2 65 33.4 12.1
DO5040H-392ML_ 3.9 ±20% 6.0 40 26.8 11.2
DO5040H-682ML_ 6.8 ±20% 9.0 30 22.5 9.6
DO5040H-103ML_ 10 ±20% 11 22 17.8 8.6
DO5040H-123ML_ 12 ±20% 13 21 15.9 7.4
DO5040H-153ML_ 15 ±20% 20 18 13.8 6.5
DO5040H-183ML_ 18 ±20% 22 14 13.2 6.0
DO5040H-223ML_ 22 ±20% 24 13 11.8 5.7
DO5040H-333ML_ 33 ±20% 37 10 9.6 4.5
DO5040H-473ML_ 47 ±20% 52 8.0 7.8 3.7
DO5040H-683ML_ 68 ±20% 67 7.0 6.7 3.4
DO5040H-104ML_ 100 ±20% 115 6.0 5.6 2.8
DO5040H-334KL_ 330 ±10% 325 3.0 3.0 1.5
DO5040H-684KL_ 680 ±10% 780 1.6 2.0 1.1
DO5040H-145KL_ 1400 ±10% 1300 1.0 1.5 0.7
1 When ordering, please specify termination and packaging codes: e.g. DO5040H-104MLD
  Termination: L = RoHS compliant tin-silver (96.5/3.5) over copper.
Special order, added cost: T = RoHS tin-silver-copper (95.5/4/0.5) over copper or
S
= non-RoHS tin-lead (63/37) over copper.
  Packaging: D = 13" machine-ready reel
EIA 481 embossed plastic tape (175 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 D instead.
2 Inductance measured at 100 kHz, 0.1 Vrms, 0 Adc using Coilcraft SMD-A fixture in Agilent/HP 4263B impedance analyzer.
3 DCR measured at 25°C on a micro-ohmmeter. 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 a 10% (typ) inductance drop from its value without current.
Temperature derating curves.
6 Irms: Current that causes a 40°C 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: October 30, 2017