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+1-847-639-6400 sales@coilcraft.com +44-1236-730595 sales@coilcraft-europe.com +886-2-2264 3646 sales@coilcraft.com.tw +86-21-6218 8074 sales@coilcraft.com.cn + 65-6484 8412 sales@coilcraft.com.sg © Coilcraft Inc. 2013 This product may not be used in medical or high risk applications without prior Coilcraft approval. Specification subject to change without notice. Please check web site for latest information. Common Mode Line Chokes – CMT Document 326-1 Document 326-1 Revised 05/21/12 CMT-1 Series Leakage Lead PC board Part L min 1 Irms inductance 2 DCR max3 H L W X Y diameter hole number (mH) (A) max (µH) (Ohms) max max max ±0.01/0,25 ±0.01/0,25 nom diameter 1. Inductance is per winding, tested at 15.75 kHz, 0 Adc. 2. Leakage inductance is measured from pin 1 to pin 4 with pins 2 and 3 shorted. 3. DCR is per winding. 4. Operating temperature range –40°C to +85°C. 5. Electrical specifications at 25°C. 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. Common mode chokes are most effective in filtering sup- ply and return conductors with in-phase signals of 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, one minute isolation between windings
- Industry standard footprint.
- Creepage and clearance = 3.2 mm
- UL1446 Class B (130°C) Insulation System (UL File E83628) W max Schematic 2 3 Recommended PC Board Layout 2 3 X Y L max 0.120/0.180 3,05/4,57 0.118 3,00 H max Parts manufactured prior to September 2011 may be marked differently. Part number Internal codes CMTX-X.X-XL CC-3 Y XXXX Weights: CMT1: 13.3 – 25.5 g; CMT3: 42.5 – 77.2 g; CMT4: 115 – 117 g Terminations: Tin-silver over copper
+1-847-639-6400 sales@coilcraft.com +44-1236-730595 sales@coilcraft-europe.com +886-2-2264 3646 sales@coilcraft.com.tw +86-21-6218 8074 sales@coilcraft.com.cn + 65-6484 8412 sales@coilcraft.com.sg © Coilcraft Inc. 2013 This product may not be used in medical or high risk applications without prior Coilcraft approval. Specification subject to change without notice. Please check web site for latest information. Common Mode Line Chokes – CMT Series Document 326-2 Revised 05/21/12 Document 326-2 CMT-2 Series Leakage Lead PC board Part L min 1 Irms inductance2 DCR max3 H L W X Y diameter hole number (mH) (A) max (µH) (Ohms) max max max ±0.01/0,25 ±0.01/0,25 nom diameter 1. Inductance is per winding, tested at 15.75 kHz, 0 Adc. 2. Leakage inductance is measured from pin 1 to pin 4 with pins 2 and 3 shorted. 3. DCR is per winding. 4. Operating temperature range –40°C to +85°C. 5. Electrical specifications at 25°C. CMT-3 Series Leakage Lead PC board Part L min 1 Irms inductance2 DCR max3 H L W X Y diameter hole number (mH) (A) max (µH) (Ohms) max max max ±0.01/0,25 ±0.01/0,25 nom diameter 1. Inductance is per winding, tested at 15.75 kHz, 0 Adc. 2. Leakage inductance is measured from pin 1 to pin 4 with pins 2 and 3 shorted. 3. DCR is per winding. 4. Operating temperature range –40°C to +85°C. 5. Electrical specifications at 25°C. W max Schematic 2 3 Recommended PC Board Layout 2 3 X Y L max 0.120/0.180 3,05/4,57 0.118 3,00 H max Parts manufactured prior to September 2011 may be marked differently. Part number Internal codes CMTX-X.X-XL CC-3 Y XXXX Weights: CMT1: 13.3 – 25.5 g; CMT3: 42.5 – 77.2 g; CMT4: 115 – 117 g Terminations: Tin-silver over copper
+1-847-639-6400 sales@coilcraft.com +44-1236-730595 sales@coilcraft-europe.com +886-2-2264 3646 sales@coilcraft.com.tw +86-21-6218 8074 sales@coilcraft.com.cn + 65-6484 8412 sales@coilcraft.com.sg © Coilcraft Inc. 2013 This product may not be used in medical or high risk applications without prior Coilcraft approval. Specification subject to change without notice. Please check web site for latest information. Common Mode Line Chokes – CMT Series Document 326-3 Revised 05/21/12 Document 326-3 CMT-4 Series Leakage Lead PC board Part L min 1 Irms inductance2 DCR max3 H L W X Y diameter hole number (mH) (A) max (µH) (Ohms) max max max ±0.01/0,25 ±0.01/0,25 nom diameter 1. Inductance is per winding, tested at 15.75 kHz, 0 Adc. 2. Leakage inductance is measured from pin 1 to pin 4 with pins 2 and 3 shorted. 3. DCR is per winding. 4. Operating temperature range –40°C to +85°C. 5. Electrical specifications at 25°C. W max Schematic 2 3 Recommended PC Board Layout 2 3 X Y L max 0.120/0.180 3,05/4,57 0.118 3,00 H max Parts manufactured prior to September 2011 may be marked differently. Part number Internal codes CMTX-X.X-XL CC-3 Y XXXX Weights: CMT1: 13.3 – 25.5 g; CMT3: 42.5 – 77.2 g; CMT4: 115 – 117 g Terminations: Tin-silver over copper
+1-847-639-6400 sales@coilcraft.com +44-1236-730595 sales@coilcraft-europe.com +886-2-2264 3646 sales@coilcraft.com.tw +86-21-6218 8074 sales@coilcraft.com.cn + 65-6484 8412 sales@coilcraft.com.sg © Coilcraft Inc. 2013 This product may not be used in medical or high risk applications without prior Coilcraft approval. Specification subject to change without notice. Please check web site for latest information. Common Mode Line Chokes – CMT Series Document 326-4 Revised 05/21/12 Document 326-4 Typical Common Mode Attenuation (Ref: 50 Ohms) CMT1 and CMT2 CMT3 and CMT4
+1-847-639-6400 sales@coilcraft.com +44-1236-730595 sales@coilcraft-europe.com +886-2-2264 3646 sales@coilcraft.com.tw +86-21-6218 8074 sales@coilcraft.com.cn + 65-6484 8412 sales@coilcraft.com.sg © Coilcraft Inc. 2013 This product may not be used in medical or high risk applications without prior Coilcraft approval. Specification subject to change without notice. Please check web site for latest information. Common Mode Line Chokes – CMT Series Document 326-5 Revised 05/21/12 Document 326-5 Typical Impedance CMT1 and CMT2 CMT3 and CMT4