Inductor Finders Power  |   RF
Power Magnetics Tools
RF Inductor Tools
New! CM Choke Finder
New! LC Filter Designer
IC / Inductor Match Tool
Application Notes
Other Resources
Designer's Kits

MSS1278 Series Shielded
Surface Mount Power Inductors

  • Magnetically shielded
  • Saturation current rating up to 30.6 Amps!
  • Low DC resistance for greater efficiency
  • 10% tolerance for parts >100 µH
  • Very high reliability and low cost
  • AEC-Q200 Grade 3 (−40°C to +85°C) qualified. For AEC-Q200 Grade 1 (−40°C to+125°C), see the MSS1278T series.
  • 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 C380

SPECIFICATIONS


Part number1
Click to get parts
Inductance2
(µH)
DCR (mOhms)3 SRF
typ4
(MHz)
Isat (A)5 Irms (A)6
typ max 10% drop 20% drop 30% drop 20°C rise 40°C rise
MSS1278-142ML_ 1.4±20% 8.8 9.8 80.0 25.2 28.6 30.6 7.00 10.00
MSS1278-472ML_ 4.7±20% 13.9 15.5 30.0 13.7 15.2 15.9 4.30 6.20
MSS1278-562ML_ 5.6±20% 15.7 17.5 24.0 12.2 13.7 14.5 4.30 6.20
MSS1278-682ML_ 6.8±20% 19.1 21.3 21.0 12.1 13.6 14.6 4.20 6.00
MSS1278-822ML_ 8.2±20% 20.3 22.6 20.0 10.1 11.5 12.3 4.10 5.90
MSS1278-103ML_ 10 ±20% 21.8 24.3 17.0 9.36 10.6 11.2 4.00 5.70
MSS1278-123ML_ 12 ±20% 23.2 25.8 15.0 8.84 10.0 10.7 3.70 5.20
MSS1278-153ML_ 15 ±20% 27.9 31.0 13.0 7.30 8.36 9.00 3.50 4.90
MSS1278-183ML_ 18 ±20% 30.8 34.3 12.0 6.10 7.10 7.74 3.00 4.50
MSS1278-223ML_ 22 ±20% 35.5 39.5 11.0 6.04 6.78 7.24 2.90 4.00
MSS1278-273ML_ 27 ±20% 45.0 50.0 10.0 5.8 6.56 7.02 2.60 3.60
MSS1278-333ML_ 33 ±20% 61.9 68.8 9.5 5.22 5.90 6.30 2.30 3.10
MSS1278-393ML_ 39 ±20% 69.1 76.8 8.5 4.68 5.42 5.80 2.10 3.00
MSS1278-473ML_ 47 ±20% 72.3 80.4 7.5 4.40 5.02 5.32 2.00 2.90
MSS1278-563ML_ 56 ±20% 80.2 89.2 7.0 4.02 4.60 4.90 1.90 2.70
MSS1278-683ML_ 68 ±20% 91.3 101.5 6.5 3.40 3.86 4.26 1.80 2.60
MSS1278-823ML_ 82 ±20% 125.9 139.9 5.0 3.12 3.58 3.80 1.60 2.30
MSS1278-104ML_ 100±20% 135.1 150.2 4.5 2.70 3.10 3.38 1.50 2.20
MSS1278-124KL_ 120±10% 182.3 202.6 4.3 2.74 3.08 3.30 1.40 1.90
MSS1278-154KL_ 150±10% 216.5 240.6 4.1 2.48 2.86 3.02 1.30 1.80
MSS1278-184KL_ 180±10% 229.0 254.5 4.0 2.26 2.58 2.74 1.20 1.70
MSS1278-224KL_ 220±10% 323.6 359.6 3.4 1.96 2.22 2.36 1.00 1.60
MSS1278-274KL_ 270±10% 415.6 461.8 3.1 1.74 2.04 2.18 0.90 1.20
MSS1278-334KL_ 330±10% 487.3 541.5 2.9 1.66 1.86 2.00 0.80 1.00
MSS1278-394KL_ 390±10% 533.6 592.9 2.7 1.52 1.72 1.88 0.75 1.00
MSS1278-474KL_ 470±10% 707.5 786.2 2.2 1.34 1.54 1.64 0.66 0.90
MSS1278-564KL_ 560±10% 777.4 863.8 2.0 1.24 1.42 1.50 0.60 0.80
MSS1278-684KL_ 680±10% 1045 1162 1.7 1.16 1.28 1.38 0.55 0.75
MSS1278-824KL_ 820±10% 1166 1296 1.4 1.04 1.16 1.26 0.50 0.70
MSS1278-105KL_ 1000±10% 1334 1483 1.3 0.97 1.10 1.14 0.48 0.68
1 When ordering, please specify termination and packaging codes: e.g. MSS1278-105KLD
  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 (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 tested at 100 kHz, 0.1 Vrms, 0 Adc 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 4191D network analyzer or eqivalent. Details
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.
7 Ambient temperature range: −40°C to +85°C with (40°C rise) Irms Derating curves
8 Storage temperature range: Component: −40°C to +125°C
Tape and reel packaging: −40°C to +80°C
9 Maximum part temperature: +125°C (Ambient + temperature rise)
10 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.
11 Electrical specifications at 25°C.
Refer to Soldering Coilcraft Components before soldering.
PCB washing: Tested to MIL-STD-202 Method 215 plus an additional aqueous wash. More info.

Home | Design Tools | Samples | Kits | Price + Stock | Sales | Support | Jobs | Index | Site Map
Your comments and suggestions are welcome. Contact webmaster@coilcraft.com
Copyright © 2017, Coilcraft, Inc.   Privacy policy
Updated: October 30, 2017