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XAL7050 High-inductance Shielded Power Inductors
XGL4020 Ultra-low DCR Power Inductors


High Current Shielded Power Inductor

RoHS compliant
Coilcraft's CU8838-AL power inductor is mechanically rugged and magnetically shielded for use in high-density circuits. Flat-wire construction provides excellent current handling and exceptionally low DCR, and soft saturation makes them perfect for VRM/VRD applications. 
  • Exceptionally low DC resistance
  • Soft saturation for high peak current handling
  • Magnetic shielding for high-density packaging
  • Ideal for low-voltage, high-current DC-DC converters and VRD/VRM controllers
  • No thermal aging
Buy Now:
Count Unit price
1 $1.49
800 $1.19
1600 $0.93
2400 $0.79
5600 $0.73

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

. in stock, ready to ship today.
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Electrical specifications at 25°C.

Part number 1 Inductance (µH) 2
(Tolerance: ±20%)
DCR (mΩ) 3 SRF typ (MHz) 4 Isat (A) 5 Irms (A) 6
typ max 10% drop 20% drop 30% drop 20°C rise 40°C rise
CU8838-AL_ 1.0 1.75 2 100 27.0 45.0 63.0 18.5 26.0
  1. When ordering, please specify packaging code: e.g. CU8838-ALD
  2. Inductance tested at 100 kHz, 0.1 Vrms using a Coilcraft SMD-A fixture and an Agilent/HP 4284A LCR meter.
  3. DCR measured at 25°C. For other operating temperatures, use this DCR at Temperature calculator
  4. SRF measured using an Agilent/HP4291A impedance analyzer or equivalent and a Coilcraft16193 fixture.
  5. Isat: DC current at which the inductance drops the specified amount from its value without current. Details
  6. Irms: Current that causes specified temperature rise from 25°C ambient. Details


  • RoHS tin-silver over copper.


  • D = 13" machine-ready reel
    EIA-481 embossed plastic tape (500 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.
RoHS compliant
Ambient temperature range:
−40°C to +85°C with (40°C) Irms current.
Storage temperature range:
Component: −40°C to +125°C
Tape and reel packaging: −40°C to +80°C
Maximum part temperature:
The part may be operated without damage as long its temperature (ambient + self-heating) does not exceed +125°C
Failures in Time (FIT) / Mean Time Between Failures (MTBF):

Performance curves

Inductance vs. Current

Inductance vs. Frequency

Physical characteristics


Tape and Reel specification


Parts per reel Reel dimensions (mm) Tape dimensions (mm) Orientation
13" (330 mm) A B C D E W P Po P1 H T part_or_aa.gif
500 330 100 13 30,4 24,4 24 20 4 2 6,5 0,4

General specification

Core Material:
4.9 g
500/13″ reel Plastic tape: 24 mm wide, 0.4 mm thick, 20 mm pocket spacing, 6.5 mm pocket depth


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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