Coilcraft D1803-AL Surface Mount Power Inductor
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D1803-AL Shielded Power Inductor
for Marvell DSP Switchers

  • Developed for Marvell for use with their 88MD830 and 88MD832 DSP Switchers
  • Small footprint – requires only 32 sq mm board space
  • RoHS compliant. 260°C compatible. Matte tin over copper terminations.


Part number1
Click to get parts
±30% (nH)
DCR typ3
Impedance typ (Ohms) SRF typ4
Isat (A)5
1 MHz 10 MHz 10% drop 20% drop 30% drop
D1803-AL_ 1000 0.55 1.98 19.2 227.4 0.38 0.44 0.42
1 When ordering, please specify termination and packaging codes: e.g. D1803-ALC
  Termination: L = RoHS compliant matte tin over copper
Special order, added cost: T = RoHS tin-silver-copper (95.5/4/0.5) or
S = non-RoHS tin-lead (63/37).


C = 7" reel, machine-ready 
EIA-481 embossed plastic tape (750 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" reel, machine-ready 
EIA-481 embossed plastic tape. Factory order only, not stocked (2500 parts per full reel).
2 Inductance measured at 100 kHz, 0.1 Vrms, using an Agilent/HP 4284 impedance analyzer or equivalent.
3 DCR measured on a Keithley Instruments micro-ohmmeter or equivalent at 25°C. For other operating temperatures, use this DCR at Temperature calculator.
4 SRF measured using an Agilent/HP 8753ES network analyzer.  Details
5 Isat: DC current at which inductance drops the specified amount from its value without current. Details
6 Ambient temperature range: –40°C to +125°C
7 Storage temperature range: Component: −40°C to +85°C
Tape and reel packaging: −40°C to +80°C
8 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.
9 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 16, 2018