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MSS1278T Series
High Temperature Power Inductors

  • Designed for high ambient temperatures – up to 125°C with Irms current
  • Magnetically shielded
  • Saturation current rating over 36 Amps and very low DCR
  • Inductance ratings from 1.0 to 1000 µH
  • RoHS-compliant. 260°C compatible. Matte tin over nickel over phos bronze terminations
  • COTS Plus tin-silver-copper and tin-lead terminations available.
  • Samples of all values are available in Coilcraft Designer's Kit C419

Photo    Pricing    Materials declaration    PDF data sheet

SPECIFICATIONS

 L vs Frequency    L vs Current     Current Derating     Core loss   

Dimensions    Tape and reel specifications    Qualification standards    
MSS1278T-102NL_ 1.0 ±30% 6.3 7.0 115 31.84 35.04 36.84 7.1 10.1
MSS1278T-142NL_ 1.4 ±30% 8.8 9.8 85 25.04 27.76 29.52 6.8 9.8
MSS1278T-222NL_ 2.2 ±30% 9.4 10.5 60 22.56 24.80 25.96 6.3 9.2
MSS1278T-272NL_ 2.7 ±30% 10.1 11.3 40 18.76 20.72 22.04 6.1 8.6
MSS1278T-392NL_ 3.9 ±30% 11.7 13.0 35 16.52 18.24 19.20 5.7 7.7
MSS1278T-472ML_ 4.7 ±20% 13.9 15.5 33 15.30 16.90 17.76 4.3 6.2
MSS1278T-562ML_ 5.6 ±20% 15.7 17.5 30 13.38 14.86 15.74 4.3 6.2
MSS1278T-682ML_ 6.8 ±20% 19.1 21.3 23 12.10 13.56 14.20 4.2 6.0
MSS1278T-822ML_ 8.2 ±20% 20.3 22.6 20 11.38 12.60 13.28 4.1 5.9
MSS1278T-103ML_ 10 ±20% 21.8 24.3 17 10.62 11.82 12.48 4.0 5.7
MSS1278T-123ML_ 12 ±20% 23.2 25.8 15 8.90 9.88 10.44 3.7 5.2
MSS1278T-153ML_ 15 ±20% 27.9 31.0 13 8.36 9.32 9.94 3.5 4.9
MSS1278T-183ML_ 18 ±20% 30.8 34.3 12 8.00 8.88 9.36 3.0 4.5
MSS1278T-223ML_ 22 ±20% 35.5 39.5 11 7.08 7.88 8.34 2.9 4.0
MSS1278T-273ML_ 27 ±20% 45.0 50.0 10 6.32 7.08 7.54 2.6 3.6
MSS1278T-333ML_ 33 ±20% 61.9 68.8 9.5 5.96 6.56 6.98 2.3 3.1
MSS1278T-393ML_ 39 ±20% 69.1 76.8 8.5 5.38 5.94 6.28 2.1 3.0
MSS1278T-473ML_ 47 ±20% 72.3 80.4 7.5 4.76 5.40 5.66 2.0 2.9
MSS1278T-563ML_ 56 ±20% 80.2 89.2 7.0 4.40 4.98 5.30 1.9 2.7
MSS1278T-683ML_ 68 ±20% 91.3 101.5 6.5 3.92 4.46 4.74 1.8 2.6
MSS1278T-823ML_ 82 ±20% 125.9 139.9 5.0 3.66 4.08 4.38 1.6 2.3
MSS1278T-104ML_ 100 ±20% 135.1 150.2 4.5 3.12 3.56 3.78 1.5 2.2
MSS1278T-124KL_ 120 ±10% 182.3 202.6 4.3 3.02 3.36 3.58 1.4 1.9
MSS1278T-154KL_ 150 ±10% 216.5 240.6 4.1 2.60 2.94 3.10 1.3 1.8
MSS1278T-184KL_ 180 ±10% 229.0 254.5 4.0 2.36 2.68 2.84 1.2 1.7
MSS1278T-224KL_ 220 ±10% 323.6 359.6 3.4 2.24 2.50 2.62 1.0 1.6
MSS1278T-274KL_ 270 ±10% 415.6 461.8 3.1 1.94 2.18 2.34 0.90 1.2
MSS1278T-334KL_ 330 ±10% 487.3 541.5 2.9 1.72 1.92 2.06 0.80 1.0
MSS1278T-394KL_ 390 ±10% 533.6 592.9 2.7 1.62 1.82 1.92 0.75 1.0
MSS1278T-474KL_ 470 ±10% 707.5 786.2 2.2 1.44 1.64 1.74 0.66 0.90
MSS1278T-564KL_ 560 ±10% 777.4 863.8 2.0 1.40 1.54 1.66 0.60 0.80
MSS1278T-684KL_ 680 ±10% 1045 1162 1.7 1.24 1.32 1.46 0.55 0.75
MSS1278T-824KL_ 820 ±10% 1166 1296 1.4 1.14 1.28 1.42 0.50 0.70
MSS1278T-105KL_ 1000 ±10% 1334 1483 1.3 0.982 1.08 1.18 0.48 0.68
1 When ordering, please specify termination and packaging codes: e.g. MSS1278T-105KLC
  Termination: L = RoHS compliant matte tin over nickel over phos bronze
Special order, added cost: T = RoHS tin-silver-copper (95.5/4/0.5) or
S = non-RoHS tin-lead (63/37).
Packaging: D = 13" reel, machine-ready 
EIA-481 embossed plastic tape. Factory order only, not stocked (500 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 D instead.
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 on a micro-ohmmeter and a Coilcraft CCF858 test fixture.
4 SRF measured using an Agilent/HP 8573D network analyzer or equivalent. Details
5 Isat: DC current at which the inductance drops the specified amount from its value without current.
6 Irms: Current that causes the specified temperature rise from 25°C ambient. Details
7 Ambient temperature range: –40°C to +125°C with Irms current.
+125°C to +165°C with derated current Derating curve
8 Storage temperature range: Component: –40°C to +165°C
Packaging: –55°C to +80°C
9 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.
10 Electrical specifications at 25°C.
See Qualification Standards for complete environmental and test data.
Refer to Soldering Coilcraft Components before soldering.
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Updated: May 15, 2008