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 Tools
Designer's Kits

CMT Series
Common Mode Line Chokes

  • Highest common mode impedance over the widest frequency range.
  • 1250 Vrms, one minute isolation between windings.
  • Inductance values up to 125 mH; current ratings as high as 15 Amps.
  • UL1446 Class B (130°C) Insulation System (UL File E83628)
  • Creepage and clearance = 3.2 mm
  • Refer to Designing Common Mode Filters for design guidance.
  • RoHS-compliant. Tin-silver over copper terminations.

SPECIFICATIONS


 CMT-1 Series
Part number
Click to get parts
Common mode
peak impedance
(kOhms)
Inductance1
min (mH)
DCR
max2
(Ohms)
Leakage
inductance3
max (µH)
Isolation4
(Vrms)
Irms
(A)
CMT1-5.0-1L 36.28 @ 100 MHz 5.0 0.207 80 1250 1
CMT1-8.0-1L 27.98 @ 100 MHz 8.0 0.270 125 1250 1
CMT1-15.0-1L 35.27 @ 51 MHz 15 0.430 233 1250 1
CMT1-2.5-2L 50.80 @ 59 MHz 2.5 0.090 42 1250 2
CMT1-4.0-2L 17.53 @ 100 MHz 4.0 0.095 70 1250 2
CMT1-7.5-2L 2.29 @ 1.6 MHz 7.5 0.108 74 1250 2
CMT1-1.3-4L 31.76 @ 48 MHz 1.3 0.029 20 1250 4
CMT1-2.1-4L 13.05 @ 100 MHz 2.1 0.040 36 1250 4
CMT1-3.7-4L 47.42 @ 46 MHz 3.7 0.036 40 1250 4
CMT1-1.0-6L 12.64 @ 0.63 MHz 1.0 0.022 19 1250 6
CMT1-1.7-6L 43.05 @ 100 MHz 1.7 0.032 34 1250 6
CMT1-3.0-6L 160.40 @ 0.16 MHz 3.0 0.027 35 1250 6
CMT1-.6-9L 22.06 @ 0.49 MHz 0.6 0.012 11 1250 9
CMT1-1.1-9L 28.44 @ 0.92 MHz 1.1 0.013 12 1250 9
CMT1-1.9-9L 9.53 @ 12 MHz 1.9 0.017 20 1250 9
CMT1-.5-12L 9.53 @ 12 MHz 0.5 0.008 9.0 1250 12
CMT1-.8-12L 8.27 @ 12 MHz 0.8 0.008 9.0 1250 12
CMT1-1.4-12L 46.14 @ 0.38 MHz 1.4 0.011 16 1250 12
CMT1-.3-15L 35.27 @ 100 MHz 0.3 0.005 6.0 1250 15
CMT1-.6-15L 17.74 @ 0.27 MHz 0.6 0.006 6.5 1250 15
CMT1-1.1-15L 81.12 @ 0.25 MHz 1.1 0.008 13.7 1250 15
 CMT-2 Series
Part number
Click to get parts
Common mode
peak impedance
(kOhms)
Inductance1
min (mH)
DCR
max2
(Ohms)
Leakage
inductance3
max (µH)
Isolation4
(Vrms)
Irms
(A)
CMT2-7.5-1L 4.25 @ 1.1 MHz 7.5 0.270 90 1250 1
CMT2-13-1L 26.46 @ 110 MHz 13 0.415 190 1250 1
CMT2-3.8-2L 2.15 @ 1.5 MHz 3.8 0.106 48 1250 2
CMT2-6.5-2L 33.27 @ 35 MHz 6.5 0.145 98 1250 2
CMT2-1.9-4L 2.98 @ 1.2 MHz 1.9 0.038 26 1250 4
CMT2-3.3-4L 27.29 @ 100 MHz 3.3 0.055 45 1250 4
CMT2-1.5-6L 35.92 @ 39 MHz 1.5 0.029 21 1250 6
CMT2-2.6-6L 16.92 @ 1.1 MHz 2.6 0.040 41 1250 6
CMT2-.9-9L 161.50 @ 0.27 MHz 0.9 0.014 17 1250 9
CMT2-1.5-9L 27.13 @ 20 MHz 1.5 0.013 15 1250 9
CMT2-.7-12L 29.70 @ 0.61 MHz 0.7 0.011 14 1250 12
CMT2-1.2-12L 32.73 @ 0.78 MHz 1.2 0.011 14 1250 12
CMT2-.5-15L 56.35 @ 0.41 MHz 0.5 0.007 8.7 1250 15
CMT2-.8-15L 110.44 @ 13 MHz 0.8 0.007 10 1250 15
 CMT-3 Series
Part number
Click to get parts
Common mode
peak impedance
(kOhms)
Inductance1
min (mH)
DCR
max2
(Ohms)
Leakage
inductance3
max (µH)
Isolation4
(Vrms)
Irms
(A)
CMT3-32-1L 215.01 @ 0.18 MHz 32 0.650 485 1250 1
CMT3-56-1L 149.83 @ 0.12 MHz 56 0.900 780 1250 1
CMT3-16-2L 215.13 @ 0.12 MHz 16 0.240 210 1250 2
CMT3-28-2L 22.33 @ 100 MHz 28 0.330 410 1250 2
CMT3-8-4L 29.82 @ 0.1 MHz 8.0 0.061 57.5 1250 4
CMT3-14-4L 28.53 @ 0.46 MHz 14 0.120 180 1250 4
CMT3-6.6-6L 41.91 @ 0.1 MHz 6.6 0.048 49 1250 6
CMT3-11.5-6L 13.83 @ 0.43 MHz 11.5 0.088 140 1250 6
CMT3-4-9L 14.47 @ 100 MHz 4.0 0.026 37 1250 9
CMT3-7-9L 26.76 @ 0.38 MHz 7.0 0.045 104 1250 9
CMT3-3-12L 25.59 @ 0.95 MHz 3.0 0.022 40 1250 12
CMT3-5.2-12L 20.13 @ 0.32 MHz 5.2 0.025 47 1250 12
CMT3-2.5-15L 79.68 @ 0.16 MHz 2.5 0.019 42 1250 15
CMT3-4.4-15L 19.83 @ 0.27 MHz 4.4 0.017 48 1250 15
 CMT-4 Series
Part number
Click to get parts
Common mode
peak impedance
(kOhms)
Inductance1
min (mH)
DCR
max2
(Ohms)
Leakage
inductance3
max (µH)
Isolation4
(Vrms)
Irms
(A)
CMT4-72-1L 19.27 @ 0.18 MHz 72 1.15 1400 1250 1
CMT4-125-1L 157.53 @ 0.18 MHz 125 1.15 1400 1250 1
CMT4-36-2L 30.29 @ 0.1 MHz 36 0.415 680 1250 2
CMT4-62-2L 26.48 @ 0.12 MHz 62 0.415 750 1250 2
CMT4-19-4L 186.61 @ 0.12 MHz 19 0.15 350 1250 4
CMT4-32-4L 39.44 @ 0.12 MHz 32 0.158 370 1250 4
CMT4-15-6L 247.34 @ 0.17 MHz 15 0.114 275 1250 6
CMT4-26-6L 91.87 @ 0.16 MHz 26 0.115 320 1250 6
CMT4-10-9L 28.15 @ 0.1 MHz 10 0.057 190 1250 9
CMT4-17-9L 433.33 @ 0.11 MHz 17 0.062 220 1250 9
CMT4-7.5-12L 56.92 @ 0.34 MHz 7.5 0.042 140 1250 12
CMT4-13-12L 25.54 @ 0.98 MHz 13 0.043 155 1250 12
CMT4-6-15L 80.52 @ 0.31 MHz 6.0 0.03 111 1250 15
CMT4-10-15L 66.10 @ 0.1 MHz 10 0.029 122 1250 15
1 Inductance is per winding, tested at 15.75 kHz, 0 Adc.
2 DCR is per winding, measured at 25°C. For other operating temperatures, use this DCR at Temperature calculator.
3 Leakage inductance is measured from pin 1 to pin 4 with pins 2 and 3 shorted.
4 Interwinding isolation (hipot) tested for one minute.
5 Ambient temperature range: −40°C to +85°C
6 Storage temperature range: Component: −40°C to +85°C
Packaging trays: −40°C to +80°C
7 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
Your comments and suggestions are welcome. Contact webmaster@coilcraft.com
Copyright © 2017, Coilcraft, Inc.   Privacy policy
Updated: April 21, 2017