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Common Mode Chokes
MSD1278 Series

  • Common- and differential-mode filtering in a single device
  • Ideal for use in both power line and signal line applications
  • Up to 110 MHz differential mode cutoff frequency
  • 500 Vrms, one minute winding-to-winding isolation
  • Refer to Designing Common Mode Filters for design guidance.
  • RoHS-compliant, halogen free. 260°C compatible. Matte tin over nickel over silver terminations
  • COTS Plus tin-silver-copper and tin-lead terminations available

SPECIFICATIONS


Part number1
Click to get parts
Common mode
peak impedance
(kOhms)      
Cutoff
frequency2
(MHz)
Inductance (µH)3 DCR
max4
(Ohms)
Isolation5
(Vrms)
Irms6
(A)
min nom
MSD1278-472ML_ 7.74 @ 32 MHz 110 3.76 4.7 0.038 500 3.16
MSD1278-562ML_ 7.70 @ 25 MHz 81 4.48 5.6 0.046 500 2.87
MSD1278-682ML_ 9.71 @ 22 MHz 63 5.44 6.8 0.048 500 2.81
MSD1278-822ML_ 10.77 @ 21 MHz 87 6.56 8.2 0.050 500 2.76
MSD1278-103ML_ 11.29 @ 19 MHz 58 8.00 10 0.058 500 2.56
MSD1278-123ML_ 13.41 @ 17 MHz 57 9.60 12 0.062 500 2.48
MSD1278-153ML_ 17.44 @ 16 MHz 53 12.0 15 0.072 500 2.30
MSD1278-183ML_ 16.96 @ 15 MHz 43 14.4 18 0.080 500 2.18
MSD1278-223ML_ 19.54 @ 12 MHz 35 17.6 22 0.096 500 1.99
MSD1278-273ML_ 22.40 @ 11 MHz 39 21.6 27 0.12 500 1.78
MSD1278-333ML_ 39.00 @ 9.8 MHz 37 26.4 33 0.15 500 1.59
MSD1278-393ML_ 47.17 @ 9.0 MHz 42 31.2 39 0.16 500 1.54
MSD1278-473ML_ 48.28 @ 8.6 MHz 28 37.6 47 0.18 500 1.45
MSD1278-563ML_ 55.35 @ 7.7 MHz 26 44.8 56 0.19 500 1.41
MSD1278-683ML_ 63.59 @ 6.8 MHz 22 54.4 68 0.21 500 1.35
MSD1278-823ML_ 76.76 @ 6.1 MHz 22 65.6 82 0.28 500 1.16
MSD1278-104ML_ 79.30 @ 5.8 MHz 22 80.0 100 0.30 500 1.13
MSD1278-124KL_ 95.79 @ 4.9 MHz 18 108 120 0.41 500 0.96
MSD1278-154KL_ 80.01 @ 4.3 MHz 23 135 150 0.46 500 0.91
MSD1278-184KL_ 82.56 @ 3.9 MHz 13 162 180 0.51 500 0.86
MSD1278-224KL_ 114.9 @ 3.7 MHz 13 198 220 0.69 500 0.74
MSD1278-274KL_ 140.0 @ 2.9 MHz 12 243 270 0.90 500 0.65
MSD1278-334KL_ 101.7 @ 2.8 MHz 9.4 297 330 1.02 500 0.61
MSD1278-394KL_ 87.12 @ 2.6 MHz 9.4 351 390 1.12 500 0.58
MSD1278-474KL_ 159.6 @ 2.3 MHz 11 423 470 1.43 500 0.50
MSD1278-564KL_ 142.6 @ 2.2 MHz 8.7 504 560 1.69 500 0.47
MSD1278-684KL_ 165.0 @ 1.9 MHz 7.4 612 680 2.29 500 0.41
MSD1278-824KL_ 138.0 @ 1.8 MHz 6.9 738 820 2.55 500 0.39
MSD1278-105KL_ 154.0 @ 1.7 MHz 6.0 900 1000 2.83 500 0.37
1 When ordering, please specify termination and packaging codes: e.g. MSD1278-105KLC
  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 (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 Frequency at which the differential mode attenuation equals 3 dB
3 Inductance shown for each winding, measured at 100 kHz, 0.1 Vrms, 0 Adc on an Agilent/HP 4284A LCR meter or equivalent.
4 DCR is for each winding, measured at 25°C. For other operating temperatures, use this DCR at Temperature calculator.
5 Interwinding isolation (hipot) tested for one minute.
6 Irms: Current that causes a 40°C temperature rise from 25°C ambient. This information is for reference only and does not represent absolute maximum ratings.
7 Ambient temperature range: −40°C to +85°C with Irms current.
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.

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Updated: December 05, 2017