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Coilcraft CPS
3D Model Datasheet Spice Model SPICE

MSS1246 Series

Shielded Surface Mount Power Inductors

RoHS compliant AEC-Q flag
Coilcraft MSS1246 Series shielded surface-mount power inductors feature low DC resistance and excellent current handling in a wide range of 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 3 (-40°C to +85°C)​

Buy Now:
Find my part
Count Unit price
1 $2.17
200 $1.44
600 $0.87
1000 $0.68
2400 $0.58
5000 $0.53

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

. in stock, ready to ship today.
Request a Sample:
Find my part
Designer's Kit:
Kit Values Price
C410 31 (3 of each) $85.00

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
MSS1246-102ML_ 1.0 20 5.8 6.6 100 18.4 19.4 19.9 6.0 8.0
MSS1246-332ML_ 3.3 20 12.1 13.6 51.0 10.2 11.2 11.8 4.8 6.3
MSS1246-472ML_ 4.7 20 19.1 21.3 42.0 8.5 9.4 9.9 4.5 6.0
MSS1246-562ML_ 5.6 20 22.1 24.6 37.0 7.6 8.7 9.3 4.2 5.8
MSS1246-682ML_ 6.8 20 24.9 27.7 33.0 6.5 7.3 7.8 3.8 5.2
MSS1246-822ML_ 8.2 20 27.4 30.5 31.0 6.0 6.8 7.3 3.6 4.9
MSS1246-103ML_ 10 20 36.8 40.9 27.0 5.7 6.4 6.8 3.3 4.2
MSS1246-123ML_ 12 20 38.9 43.3 24.0 5.0 5.8 6.2 3.0 4.0
MSS1246-153ML_ 15 20 48.6 54.1 22.0 4.6 5.2 5.5 2.9 3.8
MSS1246-183ML_ 18 20 51.0 56.7 19.0 4.3 4.8 5.1 2.7 3.5
MSS1246-223ML_ 22 20 60.3 67.0 18.0 3.8 4.2 4.5 2.5 3.4
MSS1246-273ML_ 27 20 67.5 75.0 16.0 3.5 3.9 4.2 4.8 3.0
MSS1246-333ML_ 33 20 81.7 90.8 15.0 3.1 3.5 3.8 1.9 2.6
MSS1246-393ML_ 39 20 95.2 106 13.3 2.7 3.1 3.4 1.7 2.4
MSS1246-473ML_ 47 20 121 134 12.3 2.7 3.1 3.2 1.5 2.1
MSS1246-563ML_ 56 20 134 149 10.6 2.3 2.6 2.8 1.4 2.0
MSS1246-683ML_ 68 20 167 186 9.7 2.1 2.4 2.6 1.3 1.8
MSS1246-823ML_ 82 20 189 210 8.8 1.8 2.1 2.2 1.2 1.7
MSS1246-104ML_ 100 20 217 241 8.0 1.6 1.9 2.0 1.2 1.6
MSS1246-124KL_ 120 10 287 319 7.2 1.6 1.8 1.9 1.0 1.4
MSS1246-154KL_ 150 10 327 363 6.6 1.4 1.6 1.7 0.95 1.3
MSS1246-184KL_ 180 10 380 422 5.9 1.3 1.5 1.6 0.89 1.2
MSS1246-224KL_ 220 10 488 543 5.3 1.2 1.3 1.4 0.76 1.0
MSS1246-274KL_ 270 10 560 622 4.7 1.0 1.2 1.2 0.72 0.95
MSS1246-334KL_ 330 10 731 813 4.1 1.0 1.1 1.2 0.65 0.87
MSS1246-394KL_ 390 10 814 904 3.8 0.91 1.0 1.1 0.59 0.79
MSS1246-474KL_ 470 10 935 1039 3.5 0.81 0.92 0.98 0.56 0.76
MSS1246-564KL_ 560 10 1193 1326 3.0 0.76 0.85 0.90 0.50 0.67
MSS1246-684KL_ 680 10 1370 1523 2.8 0.68 0.77 0.82 0.46 0.62
MSS1246-824KL_ 820 10 1590 1767 2.6 0.61 0.70 0.75 0.43 0.58
MSS1246-105KL_ 1000 10 2090 2323 2.4 0.56 0.63 0.68 0.36 0.50
Notes
  1. When ordering, please specify termination and packaging codes: e.g. MSS1246-105KLC
  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 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:

  • C = 7″ machine-ready reel. EIA-481 embossed plastic tape (200 parts per full reel). Quantities less than full reel available: in tape (not machine ready) or with leader and trailer ($25 charge).
  • D = 13″ machine-ready reel. EIA-481 embossed plastic tape. Factory order only, not stocked (800 parts per full reel).
  • B = Less than full reel. 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.
Environmental
Environmental:
RoHS compliant
Ambient temperature range:
–40°C to +85°C with (40°C rise) Irms current
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):
See FIT/MTBF Calculations

Performance curves

Inductance vs. Current

Inductance vs. Current

Inductance vs. Frequency

Inductance vs. Frequency

Physical characteristics

mss1246d.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 0,4
* 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, 0.40 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.

Related product series

MOS6020 Series

MSS1038 Series

MSS1038T Series

MSS1048 Series

MSS1048T Series

MSS1210 Series

MSS1210H Series

MSS1246H Series

MSS1246T Series

MSS1260 Series

MSS1260H Series

MSS1260T Series

MSS1278 Series

MSS1278H Series

MSS1278T Series

MSS1514V Series

MSS1812T Series

MSS1583 Series

MSS5121 Series

MSS5131 Series

MSS5131H Series

MSS6122 Series

MSS6132 Series

MSS6132T Series

MSS7331 Series

MSS7341 Series

MSS7341T Series

MSS7348 Series

Related product families

LPS

  • High performance in a low profile
  • High energy storage and low DC resistance

LPZ

  • Higher inductance values than LPS series
  • Rugged construction  -Some AEC-Q200