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MSS1246T Series

High Temperature Power Inductors

RoHS compliant AEC-Q flag
Coilcraft MSS1246T Series shielded surface-mount power inductors feature low DC resistance and excellent current handling in a wide range of industry-standard footprints and inductance values, making them a cost-effective option for a variety of general-purpose applications. 
  • Low-loss ferrite drum core for flat inductance vs current
  • Low DC resistance for greater efficiency
  • Excellent current handling
  • Magnetic shielding allows high-density mounting
  • AEC-Q200 Grade 1 (−40°C to +125°C)​
Need parts for space, military or other critical applications? See Coilcraft CPS 566PNB series.
Buy Now:
Count Unit price
1 $1.96
200 $1.47
600 $0.88
1200 $0.69
2400 $0.61
4800 $0.56

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

. in stock, ready to ship today.
Request a Sample:
Designer's Kit:
Kit Values Price
C417 33 (3 of each) $100.00

Specifications

Electrical specifications at 25°C.

Part number 1 Inductance (µH) 2 Tolerance (%) 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
MSS1246T-102ML_ 1.0 20 5.6 6.3 100 18.1 20.6 22.2 6.0 8.0
MSS1246T-152ML_ 1.5 20 8.7 9.7 85.0 14.1 15.9 17.1 5.8 7.8
MSS1246T-272ML_ 2.7 20 10.3 11.5 70.0 11.7 13.2 14.2 5.0 6.8
MSS1246T-332ML_ 3.3 20 15.1 16.8 65.0 9.7 11.1 12.0 4.5 6.3
MSS1246T-472ML_ 4.7 20 19.1 21.3 42.0 8.6 9.7 10.4 4.4 6.0
MSS1246T-562ML_ 5.6 20 22.1 24.6 37.0 7.6 8.7 9.4 4.0 5.8
MSS1246T-682ML_ 6.8 20 24.9 27.7 33.0 7.4 8.4 9.0 3.7 5.2
MSS1246T-822ML_ 8.2 20 27.4 30.5 31.0 6.8 7.7 8.3 3.4 4.7
MSS1246T-103ML_ 10 20 36.8 40.9 27.0 5.9 6.7 7.2 2.9 3.9
MSS1246T-123ML_ 12 20 38.9 43.3 24.0 5.3 6.0 6.5 2.7 3.7
MSS1246T-153ML_ 15 20 48.6 54.1 22.0 4.7 5.4 5.8 2.5 3.4
MSS1246T-183ML_ 18 20 51.0 56.7 19.0 4.3 4.9 5.3 2.4 3.2
MSS1246T-223ML_ 22 20 60.3 67.0 18.0 3.8 4.3 4.8 2.3 3.1
MSS1246T-273ML_ 27 20 67.5 75.0 16.0 3.5 4.0 4.3 2.1 2.9
MSS1246T-333ML_ 33 20 81.7 90.8 15.0 3.2 3.7 4.0 1.9 2.6
MSS1246T-393ML_ 39 20 95.2 106 13.3 3.0 3.5 3.7 1.7 2.4
MSS1246T-473ML_ 47 20 121 134 12.3 2.7 3.1 3.3 1.5 2.1
MSS1246T-563ML_ 56 20 134 149 10.6 2.5 2.8 3.0 1.4 2.0
MSS1246T-683ML_ 68 20 167 186 9.7 2.3 2.5 2.7 1.3 1.8
MSS1246T-823ML_ 82 20 189 210 8.8 2.0 2.3 2.5 1.2 1.7
MSS1246T-104ML_ 100 20 217 241 8.0 1.8 2.1 2.2 1.2 1.7
MSS1246T-124KL_ 120 10 287 319 7.2 1.6 1.9 2.0 1.0 1.4
MSS1246T-154KL_ 150 10 327 363 6.6 1.5 1.7 1.8 0.95 1.3
MSS1246T-184KL_ 180 10 380 422 5.9 1.4 1.6 1.7 0.89 1.2
MSS1246T-224KL_ 220 10 488 543 5.3 1.2 1.4 1.5 0.76 1.0
MSS1246T-274KL_ 270 10 560 622 4.7 1.1 1.3 1.4 0.72 0.95
MSS1246T-334KL_ 330 10 731 813 4.1 1.0 1.1 1.2 0.65 0.87
MSS1246T-394KL_ 390 10 814 904 3.8 0.95 1.0 1.1 0.59 0.79
MSS1246T-474KL_ 470 10 935 1039 3.5 0.86 0.98 1.0 0.56 0.76
MSS1246T-564KL_ 560 10 1193 1326 3.0 0.78 0.88 0.96 0.50 0.67
MSS1246T-684KL_ 680 10 1370 1523 2.8 0.72 0.82 0.88 0.46 0.62
MSS1246T-824KL_ 820 10 1590 1767 2.6 0.63 0.73 0.79 0.43 0.58
MSS1246T-105KL_ 1000 10 2090 2323 2.4 0.59 0.68 0.73 0.36 0.50
Notes
  1. When ordering, please specify termination and packaging codes: e.g. MSS1246T-105KLC
  2. Inductance measured at 100 kHz, 0.1 Vrms using a Coilcraft SMD-A fixture in an Agilent/HP 4263B LCR meter or equivalent.
  3. DCR measured at 25°C on a micro-ohmmeter and a Coilcraft CCF858 test fixture. For other operating temperatures,use this DCR at Temperature calculator.
  4. SRF measured using an Agilent/HP 8753D network analyzer and a Coilcraft SMD -D test fixture.
  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:

  • L = RoHS compliant matte tin over nickel over phos bronze.
  • 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)

Packaging:

  • 7" reel, machine-ready 
    EIA-481 embossed plastic tape (200 parts per full reel).
  • B = Less than full reel
    In tape, not machine ready. To have a leader and trailer added ($25 charge), use code letter C instead.
  • D13" reel, machine-ready 
    EIA-481 embossed plastic tape. Factory order only, not stocked (800 parts per full reel).
Environmental
Environmental:
RoHS compliant
Ambient temperature range:
–40°C to +125°C with (40°C rise) Irms current
Storage temperature range:
Component: –40°C to +165°C.
Tape and reel packaging: –40°C to +80°C
Maximum part temperature:
+165°C (ambient + temp rise). Derating.
Failures in Time (FIT) / Mean Time Between Failures (MTBF):
38 per billion hours / 26,315,789 hours, calculated per Telcordia SR-332

Performance curves

Inductance vs. Current

Inductance vs. Frequency

Physical characteristics

mss1246td.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_o.gif
200 800* 178/330 60/100 13 30,4 24,4 24 16 4 2 4,7 0,35
* Special order
‡ Part marking does not indicate polarity.

General specification

Core Material:
Ferrite
Weight:
2.3 - 2.5 g
Packaging:
200/7″ reel; 800/13″ reel; Plastic tape: 24 mm wide, 0.35 mm thick, 16 mm pocket spacing, 4.7 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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