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Cx Family Common Mode Chokes
0402CT Low Profile Chip Inductors
XAL7050 High-inductance Shielded Power Inductors
XGL4020 Ultra-low DCR Power Inductors

SLC1049 Series

High Current Power Inductors

RoHS compliant
Coilcraft’s SLC1049 Series of high-current shielded power inductors feature sub-milliohm DC resistance and very high current handling.  Magnetic shielding and tight DCR tolerances make them ideal for low voltage multi-phase VRM/VRD/EVRD regulators and current sensing circuits.
  • Sub-milliohm DC resistance and tight DCR tolerance
  • Ferrite construction for flat L vs I with high current
  • Magnetic shielding allows high-density packaging
  • Ideal for multi-phase VRM/VRD/EVRD regulators
Buy Now:
Count Unit price
1 $1.34
250 $1.20
500 $1.01
1000 $0.85
2500 $0.74
5000 $0.64

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 ± 7% (mΩ) 3 SRF typ (MHz) 4 Isat (A) 5 Irms (A) 6
SLC1049-750ML_ 0.075 0.230 200 61.0 66.0
SLC1049-101ML_ 0.10 0.230 145 50.0 66.0
SLC1049-121ML_ 0.13 0.230 140 37.0 66.0
SLC1049-151ML_ 0.15 0.230 133 30.0 66.0
SLC1049-231ML_ 0.23 0.230 70.0 25.5 66.0
  1. When ordering, please specify termination and packaging codes: e.g. SLC1049-151MLC
  2. Inductance measured at 100 kHz, 0.1 Vrms, using an Agilent/HP 4263B LCR meter or equivalent.
  3. DCR measured at 25°C on a micro-ohmmeter at the points indicated in this diagram.
  4. SRF measured with coils connected in series using an Agilent/HP 8753ES network analyzer or equivalent.
  5. Isat: DC current at 25°C that causes a 20% (typ) inductance drop from its value without current. Temperature derating curves.
  6. Irms: Current that causes 40°C temperature rise from 25°C ambient. This information is for reference only and does not represent absolute maximum ratings. Temperature derating curves.



  • L = RoHS compliant matte tin over nickel over copper.
  • T = RoHS tin-silver-copper (95.5/4/0.5). (Special order, added cost)
  • S = non-RoHS tin-lead (63/37). (Special order, added cost)


  • C = 7″ machine-ready reel. EIA-481 embossed plastic tape (250 per full reel). Quantities less than full reel available: in tape (not machine ready) or with leader and trailer ($25 charge).
  • B = 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 (1000 per full reel). Factory order only, not stocked.
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 + temp rise)
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
7" (178 mm) 13" (330 mm) A B C D E W P Po P1 H T part_or_aa-(1).gif
250 1000* 178/330 60/100 13 30,4 24,4 24 12 4 2 5,0 0,35
* Special order
‡ Part marking does not indicate polarity

General specification

Core Material:
1.25 – 1.30 g
250/7″ reel; 1000/13″ reel Plastic tape: 24 mm wide, 0.35 mm thick, 12 mm pocket spacing, 5.08 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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