Document 326-1 Common Mode Line Chokes - CMT Series Coilcraft’s CMT toroid style common mode chokes are designed to provide the highest common mode impedance over the widest frequency range. These parts are ideal for any application requiring a high DC current bias and are well suited for use in switch-mode power supplies. equal amplitude. Differential mode inductors are available for filtering out-of-phase or uneven amplitude signals. CMTs feature inductance values up to 125 mH and Irms ratings as high as 15 Amps. • 1250 Vrms isolation between windings • Industry standard footprint. • IEC, UL, and VDE compliant. Common mode chokes are most effective in filtering supply and return conductors with in-phase signals of 0.118 3,00 Recommended Board Layout Schematic 1 4 2 3 1 H max X CMT-X-X.X-XL CCI XXXX CC–3X 2 2 L max 3 2 Weights: 1 4 0.120/0.180 3,05/4,57 CMT1: 13.3 – 25.5 g; CMT2: 20.7– 41.7 g; CMT3: 42.5 – 74.9 g; CMT4: 115 – 117 g Terminations: Tin-silver over copper 3 W max Y CMT-1 Series Part number CMT1-5.0-1L CMT1-8.0-1L CMT1-15.0-1L CMT1-2.5-2L CMT1-4.0-2L CMT1-7.5-2L CMT1-1.3-4L CMT1-2.1-4L CMT1-3.7-4L CMT1-1.0-6L CMT1-1.7-6L CMT1-3.0-6L CMT1-.6-9L CMT1-1.1-9L CMT1-1.9-9L CMT1-.5-12L CMT1-.8-12L CMT1-1.4-12L CMT1-.3-15L CMT1-.6-15L CMT1-1.1-15L 1. 2. 3. 4. L min1 (mH) 5.0 8.0 15.0 2.5 4.0 7.5 1.3 2.1 3.7 1.0 1.7 3.0 0.6 1.1 1.9 0.5 0.8 1.4 0.3 0.6 1.1 Irms (A) 1.0 1.0 1.0 2.0 2.0 2.0 4.0 4.0 4.0 6.0 6.0 6.0 9.0 9.0 9.0 12.0 12.0 12.0 15.0 15.0 15.0 Leakage inductance2 DCR max max (µH) (Ohms) 80 0.207 125 0.270 233 0.430 42 0.090 70 0.095 74 0.108 20 0.029 36 0.040 40 0.036 19 0.022 34 0.032 35 0.027 11 0.012 12 0.013 20 0.017 9 0.008 9 0.008 16 0.011 6 0.005 6.5 0.006 13.7 0.008 H max 1.100/27,9 1.100/27,9 1.155/29,4 1.100/27,9 1.050/26,7 1.155/29,4 1.100/27,9 1.100/27,9 1.125/28.6 1.100/27,9 1.155/29,4 1.200/30,5 1.200/30,5 1.300/33.0 1.300/33.0 1.200/30,5 1.200/30,5 1.300/33.0 1.300/33.0 1.250/31.8 1.250/31.8 L max 1.210/30,7 1.210/30,7 1.300/33,0 1.210/30,7 1.210/30,7 1.300/33,0 1.210/30,7 1.210/30,7 1.300/33,0 1.210/30,7 1.300/33,0 1.210/30,7 1.210/30,7 1.210/30,7 1.400/35,6 1.210/30,7 1.210/30,7 1.210/30,7 1.210/30,7 1.210/30,7 1.210/30,7 Lead W X Y diameter max ±0.01/0,25 ±0.01/0,25 nom 0.625/15,9 0.80/20,3 0.40/10,2 0.054/1,37 0.625/15,9 0.80/20,3 0.40/10,2 0.054/1,37 0.625/15,9 0.80/20,3 0.40/10,2 0.054/1,37 0.625/15,9 0.80/20,3 0.40/10,2 0.054/1,37 0.625/15,9 0.80/20,3 0.40/10,2 0.054/1,37 0.625/15,9 0.80/20,3 0.40/10,2 0.054/1,37 0.625/15,9 0.80/20,3 0.40/10,2 0.054/1,37 0.625/15,9 0.80/20,3 0.40/10,2 0.054/1,37 0.625/15,9 0.80/20,3 0.40/10,2 0.054/1,37 0.625/15,9 0.80/20,3 0.40/10,2 0.054/1,37 0.625/15,9 0.80/20,3 0.40/10,2 0.054/1,37 0.625/15,9 0.80/20,3 0.40/10,2 0.054/1,37 0.625/15,9 0.80/20,3 0.40/10,2 0.042/1,07 0.625/15,9 0.80/20,3 0.40/10,2 0.042/1,07 0.625/15,9 0.80/20,3 0.40/10,2 0.042/1,07 0.650/16,5 0.80/20,3 0.40/10,2 0.048/1,22 0.650/16,5 0.80/20,3 0.40/10,2 0.048/1,22 0.650/16,5 0.80/20,3 0.40/10,2 0.048/1,22 0.625/15,9 0.80/20,3 0.40/10,2 0.054/1,37 0.650/16,5 0.80/20,3 0.40/10,2 0.054/1,37 0.700/17,8 0.80/20,3 0.40/10,2 0.054/1,37 PC board hole diameter 0.091/2,32 0.091/2,32 0.091/2,32 0.091/2,32 0.091/2,32 0.091/2,32 0.091/2,32 0.091/2,32 0.091/2,32 0.091/2,32 0.091/2,32 0.091/2,32 0.071/1,80 0.071/1,80 0.071/1,80 0.081/2,06 0.081/2,06 0.081/2,06 0.091/2,32 0.091/2,32 0.091/2,32 Inductance is per winding, tested at 15.75 kHz, 0 Adc. Leakage inductance is measured from pin 1 to pin 4 with pins 2 and 3 shorted. Operating temperature range –40°C to +85°C. Electrical specifications at 25°C. Specifications subject to change without notice. Please check our website for latest information. © Coilcraft, Inc. 2009 Document 326-1 Revised 08/20/08 Document 326-2 Common Mode Line Chokes – CMT Series 0.118 3,00 Recommended Board Layout Schematic 1 4 2 3 1 H max X CMT-X-X.X-XL CCI XXXX CC–3X 3 2 Weights: 1 4 2 2 L max 0.120/0.180 3,05/4,57 CMT1: 13.3 – 25.5 g; CMT2: 20.7– 41.7 g; CMT3: 42.5 – 74.9 g; CMT4: 115 – 117 g Terminations: Tin-silver over copper 3 W max Y CMT-2 Series Part number CMT2-7.5-1L CMT2-13-1L CMT2-3.8-2L CMT2-6.5-2L CMT2-1.9-4L CMT2-3.3-4L CMT2-1.5-6L CMT2-2.6-6L CMT2-.9-9L CMT2-1.5-9L CMT2-.7-12L CMT2-1.2-12L CMT2-.5-15L CMT2-.8-15L 1. 2. 3. 4. L min1 (mH) 7.5 13.0 3.8 6.5 1.9 3.3 1.5 2.6 0.9 1.5 0.7 1.2 0.5 0.8 Irms (A) 1.0 1.0 2.0 2.0 4.0 4.0 6.0 6.0 9.0 9.0 12.0 12.0 15.0 15.0 Leakage inductance2 DCR max max (µH) (Ohms) 90 0.270 190 0.415 48 0.106 98 0.145 26 0.038 45 0.055 21 0.029 41 0.040 17 0.014 15 0.013 14 0.011 14 0.011 8.7 0.007 10 0.007 H max 1.100/27,9 1.300/33,0 1.100/27,9 1.300/33,0 1.100/27,9 1.300/33,0 1.100/27,9 1.400/35,6 1.200/30,5 1.250/31,8 1.200/30,5 1.200/30,5 1.300/33.0 1.200/30,5 L max 1.310/33,3 1.310/33,3 1.310/33,3 1.310/33,3 1.310/33,3 1.310/33,3 1.310/33,3 1.400/35,6 1.310/33,3 1.250/31,8 1.250/31,8 1.250/31,8 1.300/33,0 1.250/31,8 Lead W X Y diameter max ±0.01/0,25 ±0.01/0,25 nom 0.825/21,0 0.90/22,9 0.60/15,2 0.054/1,37 0.825/21,0 0.90/22,9 0.60/15,2 0.054/1,37 0.825/21,0 0.90/22,9 0.60/15,2 0.054/1,37 0.825/21,0 0.90/22,9 0.60/15,2 0.054/1,37 0.825/21,0 0.90/22,9 0.60/15,2 0.054/1,37 0.825/21,0 0.90/22,9 0.60/15,2 0.054/1,37 0.825/21,0 0.90/22,9 0.60/15,2 0.054/1,37 0.900/22,9 0.90/22,9 0.60/15,2 0.054/1,37 0.825/21,0 0.90/22,9 0.60/15,2 0.042/1,07 0.825/21,0 0.90/22,9 0.60/15,2 0.042/1,07 0.825/21,0 0.90/22,9 0.60/15,2 0.048/1,22 0.825/21,0 0.90/22,9 0.60/15,2 0.048/1,22 0.825/21,0 0.90/22,9 0.60/15,2 0.054/1,37 0.825/21,0 0.90/22,9 0.60/15,2 0.054/1,37 PC board hole diameter 0.091/2,32 0.091/2,32 0.091/2,32 0.091/2,32 0.091/2,32 0.091/2,32 0.091/2,32 0.091/2,32 0.071/1,80 0.071/1,80 0.081/2,06 0.081/2,06 0.091/2,32 0.091/2,32 Inductance is per winding, tested at 15.75 kHz, 0 Adc. Leakage inductance is measured from pin 1 to pin 4 with pins 2 and 3 shorted. Operating temperature range –40°C to +85°C. Electrical specifications at 25°C.. CMT-3 Series Part number CMT3-32-1L CMT3-56-1L CMT3-16-2L CMT3-28-2L CMT3-8-4L CMT3-14-4L CMT3-6.6-6L CMT3-11.5-6L CMT3-4-9L CMT3-7-9L CMT3-3-12L CMT3-5.2-12L CMT3-2.5-15L CMT3-4.4-15L 1. 2. 3. 4. L min1 (mH) 32.0 56.0 16.0 28.0 8.0 14.0 6.6 11.5 4.0 7.0 3.0 5.2 2.5 4.4 Irms (A) 1.0 1.0 2.0 2.0 4.0 4.0 6.0 6.0 9.0 9.0 12.0 12.0 15.0 15.0 Leakage inductance2 DCR max max (µH) (Ohms) 485 0.650 780 0.900 210 0.240 410 0.330 57.5 0.061 180 0.120 49 0.048 140 0.088 37 0.026 104 0.045 40 0.022 47 0.025 42 0.019 48 0.017 H max 1.400/35,6 1.650/41,9 1.400/35,6 1.650/41,9 1.350/34,3 1.700/43,2 1.400/35,6 1.700/43,2 1.400/35,6 1.760/44,7 1.700/43,2 1.700/43,2 1.750/44,5 1.700/43,2 L max 1.650/41,9 1.650/41,9 1.650/41,9 1.650/41,9 1.650/41,9 1.650/41,9 1.600/40,6 1.650/41,9 1.450/36,8 1.760/44,7 1.700/43,2 1.700/43,2 1.750/44,5 1.700/43,2 Lead PC board W X Y diameter hole max ±0.01/0,25 ±0.01/0,25 nom diameter 0.925/23,5 1.20/30,5 0.70/17,8 0.054/1,37 0.091/2,32 0.925/23,5 1.20/30,5 0.70/17,8 0.054/1,37 0.091/2,32 0.925/23,5 1.20/30,5 0.70/17,8 0.054/1,37 0.091/2,32 0.925/23,5 1.20/30,5 0.70/17,8 0.054/1,37 0.091/2,32 0.925/23,5 1.20/30,5 0.70/17,8 0.054/1,37 0.091/2,32 0.950/24,1 1.20/30,5 0.70/17,8 0.054/1,37 0.091/2,32 0.925/23,5 1.20/30,5 0.70/17,8 0.054/1,37 0.091/2,32 0.925/23,5 1.20/30,5 0.70/17,8 0.054/1,37 0.091/2,32 0.925/23,5 1.20/30,5 0.70/17,8 0.042/1,07 0.071/1,80 0.975/24,8 1.20/30,5 0.70/17,8 0.042/1,07 0.071/1,80 0.950/24,1 1.20/30,5 0.70/17,8 0.048/1,22 0.081/2,06 1.000/25,4 1.20/30,5 0.70/17,8 0.048/1,22 0.081/2,06 1.000/25,4 1.20/30,5 0.70/17,8 0.054/1,37 0.091/2,32 1.000/25,4 1.20/30,5 0.70/17,8 0.054/1,37 0.091/2,32 Inductance is per winding, tested at 15.75 kHz, 0 Adc. Leakage inductance is measured from pin 1 to pin 4 with pins 2 and 3 shorted. Operating temperature range –40°C to +85°C. Electrical specifications at 25°C. Specifications subject to change without notice. Please check our website for latest information. © Coilcraft, Inc. 2009 Document 326-2 Revised 08/20/08 Document 326-3 Common Mode Line Chokes – CMT Series 0.118 3,00 Recommended Board Layout Schematic 1 4 2 3 1 H max X CMT-X-X.X-XL CCI XXXX CC–3X Weights: 1 2 2 L max 0.120/0.180 3,05/4,57 CMT1: 13.3 – 25.5 g; CMT2: 20.7– 41.7 g; CMT3: 42.5 – 74.9 g; CMT4: 115 – 117 g Terminations: Tin-silver over copper 3 W max 4 3 2 Y CMT-4 Series Part L min1 number (mH) CMT4-72-1L 72.0 CMT4-125-1L 125.0 CMT4-36-2L 36.0 CMT4-62-2L 62.0 CMT4-19-4L 19.0 CMT4-32-4L 32.0 CMT4-15-6L 15.0 CMT4-26-6L 26.0 CMT4-10-9L 10.0 CMT4-17-9L 17.0 CMT4-7.5-12L 7.5 CMT4-13-12L 13.0 CMT4-6-15L 6.0 CMT4-10-15L 10.0 1. 2. 3. 4. Irms (A) 1.0 1.0 2.0 2.0 4.0 4.0 6.0 6.0 9.0 9.0 12.0 12.0 15.0 15.0 Leakage inductance2 DCR max max (µH) (Ohms) 1400 1.150 1400 1.150 680 0.415 750 0.415 350 0.150 370 0.158 275 0.114 320 0.115 190 0.057 220 0.062 140 0.042 155 0.043 111 0.030 122 0.029 H max 2.100/53,3 2.200/55,9 2.215/56,3 2.200/55,9 2.200/55,9 2.200/55,9 2.200/55,9 2.225/56,5 2.200/55,9 2.280/47,9 2.200/55,9 2.250/57,2 2.250/57,2 2.280/57,9 L max 2.100/53,3 2.150/54,6 2.150/54,6 2.150/54,6 2.180/55,4 2.180/55,4 2.180/55,4 2.180/55,4 2.180/55,4 2.250/57,2 2.250/57,2 2.300/58,4 2.250/57,2 2.300/58,4 Lead W X Y diameter max ±0.01/0,25 ±0.01/0,25 nom 1.130/28,7 1.50/38,1 0.90/22,9 0.054/1,37 1.130/28,7 1.50/38,1 0.90/22,9 0.054/1,37 1.130/28,7 1.50/38,1 0.90/22,9 0.054/1,37 1.130/28,7 1.50/38,1 0.90/22,9 0.054/1,37 1.130/28,7 1.50/38,1 0.90/22,9 0.054/1,37 1.130/28,7 1.50/38,1 0.90/22,9 0.054/1,37 1.130/28,7 1.50/38,1 0.90/22,9 0.054/1,37 1.130/28,7 1.50/38,1 0.90/22,9 0.054/1,37 1.130/28,7 1.50/38,1 0.90/22,9 0.042/1,07 1.150/29,2 1.50/38,1 0.90/22,9 0.042/1,07 1.130/28,7 1.50/38,1 0.90/22,9 0.048/1,22 1.130/28,7 1.50/38,1 0.90/22,9 0.048/1,22 1.150/29,2 1.50/38,1 0.90/22,9 0.054/1,37 1.130/28,7 1.50/38,1 0.90/22,9 0.054/1,37 PC board hole diameter 0.091/2,32 0.091/2,32 0.091/2,32 0.091/2,32 0.091/2,32 0.091/2,32 0.091/2,32 0.091/2,32 0.071/1,80 0.071/1,80 0.081/2,06 0.081/2,06 0.091/2,32 0.091/2,32 Inductance is per winding, tested at 15.75 kHz, 0 Adc. Leakage inductance is measured from pin 1 to pin 4 with pins 2 and 3 shorted. Operating temperature range –40°C to +85°C. Electrical specifications at 25°C. Specifications subject to change without notice. Please check our website for latest information. © Coilcraft, Inc. 2009 Document 326-3 Revised 08/20/08