Document 139-1 Output Power Chokes – Toroid Styles The DMT power inductors are designed primarily for use as output chokes in switching power supplies. The toroid core design offers the highest inductance values in the smallest part size, while minimizing external magnetic fields. Inductance values range from 7 µH to over 1.4 mH with current ratings as high as 12 Amps. These parts are ideal for any application requiring a high DC current bias. They are well suited for use in switchmode power supplies and can be used as ripple filters and differential mode EMI filters. • Industry standard footprint. • UL1446 Class B (130°C) Insulation System (UL File E83628) • All plastic material UL94V-0. Recommended Board Layout Schematic 4 1 H max Y 1 1 Z 0.052 1,32 2 2 0.120/0.180 3,05/4,57 L max 0.052 1,32 (pin 2) 4 1 Part number DMT1-7-10L DMT1-16-6.7L DMT1-26-5.1L DMT1-43-3.8L DMT1-84-2.4L DMT1-180-1.5L min (µH) 7 16 26 43 84 180 4 2 X Z V W max for mounting stability 0.063 1,6 Weight DMT1 series: 13.0 – 16.4 g DMT2 series: 48.7 – 56.3 g DMT3 series: 90.2 – 100.5 g Terminations: Tin-silver over copper DMT1 Series L 2 Current DCR SRF rating max typ H L W X (A) (Ohms) (MHz) max max max ±0.01/0,25 10.0 0.01 28.8 1.1/27,9 1.3/33,0 0.7/17,8 0.80/20,3 6.7 0.02 16.6 1.1/27,9 1.3/33,0 0.7/17,8 0.80/20,3 5.1 0.04 11.5 1.1/27,9 1.3/33,0 0.7/17,8 0.80/20,3 3.8 0.07 7.28 1.1/27,9 1.3/33,0 0.7/17,8 0.80/20,3 2.4 0.14 4.37 1.1/27,9 1.3/33,0 0.7/17,8 0.80/20,3 1.5 0.29 1.92 1.1/27,9 1.3/33,0 0.7/17,8 0.80/20,3 Y Z ±0.01/0,25 pins 1 & 4 0.40/10,2 0.052/1,32 0.40/10,2 0.041/1,04 0.40/10,2 0.052/1,32 0.40/10,2 0.052/1,32 0.40/10,2 0.052/1,32 0.40/10,2 0.052/1,32 V pins 1 & 4 0.063/1,60 0.052/1,32 0.063/1,60 0.063/1,60 0.063/1,60 0.063/1,60 1. Minimum inductance at rated current. Tested at 15.75 kHz, 10 Gauss level. 2. Operating temperature range –40°C to +85°C. 3. Electrical specifications at 25°C. US +1-847-639-6400 [email protected] UK +44-1236-730595 [email protected] Taiwan +886-2-2264 3646 [email protected] China +86-21-6218 8074 [email protected] Singapore + 65-6484 8412 [email protected] Document 139-1 Revised 08/15/12 © 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. Document 139-2 Output Power Chokes – Toroid Styles Recommended Board Layout Schematic 4 1 H max Y 1 1 Z 0.052 1,32 2 2 0.120/0.180 3,05/4,57 L max 0.052 1,32 (pin 2) 4 1 Part number DMT2-26-11L DMT2-47-8.2L DMT2-79-6L DMT2-149-3.8L DMT2-273-2.4L DMT2-567-1.5L min (µH) 26 47 79 149 273 567 DMT2-20-12L DMT2-49-8L DMT2-80-6.3L DMT2-134-4.8L DMT2-200-3.8L DMT2-380-2.4L DMT2-796-1.5L 20 49 80 134 200 380 796 2 Z W max 0.02 0.04 0.05 0.10 0.19 0.38 0.79 11.4 6.13 4.46 2.82 2.07 1.68 0.64 1.6/40,6 1.6/40,6 1.6/40,6 1.6/40,6 1.6/40,6 1.6/40,6 1.6/40,6 for mounting stability 0.063 1,6 V Weight DMT1 Series: 13.0 – 16.4 g DMT2 Series: 48.7 – 56.3 g DMT3 Series: 90.2 – 100.5 g Current DCR SRF rating max typ H L W X (A) (Ohms) (MHz) max max max ±0.01/0,25 11.0 0.02 9.34 1.4/35,6 1.4/35,6 0.9/22,9 0.90/22,9 8.2 0.04 6.45 1.4/35,6 1.4/35,6 0.9/22,9 0.90/22,9 6.0 0.07 3.58 1.4/35,6 1.4/35,6 0.9/22,9 0.90/22,9 3.8 0.13 4.03 1.4/35,6 1.4/35,6 0.9/22,9 0.90/22,9 2.4 0.26 2.45 1.4/35,6 1.4/35,6 0.9/22,9 0.90/22,9 1.5 0.56 1.12 1.4/35,6 1.4/35,6 0.9/22,9 0.90/22,9 12.0 8.0 6.3 4.8 3.8 2.4 1.5 4 X Terminations: Tin-silver over copper DMT2 Series L 2 1.6/40,6 1.6/40,6 1.6/40,6 1.6/40,6 1.6/40,6 1.6/40,6 1.6/40,6 0.9/22,9 0.9/22,9 0.9/22,9 0.9/22,9 0.9/22,9 0.9/22,9 0.9/22,9 0.90/22,9 0.90/22,9 0.90/22,9 0.90/22,9 0.90/22,9 0.90/22,9 0.90/22,9 Y Z ±0.01/0,25 pins 1 & 4 0.60/15,2 0.052/1,32 0.60/15,2 0.041/1,04 0.60/15,2 0.052/1,32 0.60/15,2 0.052/1,32 0.60/15,2 0.052/1,32 0.60/15,2 0.052/1,32 0.60/15,2 0.60/15,2 0.60/15,2 0.60/15,2 0.60/15,2 0.60/15,2 0.60/15,2 0.058/1,47 0.046/1,17 0.041/1,04 0.052/1,32 0.052/1,32 0.052/1,32 0.052/1,32 V pins 1 & 4 0.063/1,60 0.052/1,32 0.063/1,60 0.063/1,60 0.063/1,60 0.063/1,60 0.069/1,75 0.057/1,45 0.052/1,32 0.063/1,60 0.063/1,60 0.063/1,60 0.063/1,60 1. Minimum inductance at rated current. Tested at 15.75 kHz, 10 Gauss level. 2. Operating temperature range –40°C to +85°C. 3. Electrical specifications at 25°C. DMT3 Series L 1 Part min number (µH) DMT3-35-12L 35 DMT3-77-8L 77 DMT3-138-6L 138 DMT3-257-4.9L 257 DMT3-402-3.7L 402 DMT3-695-2.4L 695 DMT3-1439-1.5L 1439 Current DCR SRF rating max typ H L W X Y Z V (A) (Ohms) (MHz) max max max ±0.01/0,25 ±0.01/0,25 pins 1 & 4 pins 1 & 4 12.0 0.019 7.55 1.9/48,3 1.85/47,0 0.95/24,1 1.20/30,5 0.70/17,8 0.058/1,47 0.069/1,75 8.0 0.040 4.24 1.9/48,3 1.85/47,0 0.95/24,1 1.20/30,5 0.70/17,8 0.046/1,17 0.057/1,45 6.0 0.070 2.77 1.9/48,3 1.85/47,0 0.95/24,1 1.20/30,5 0.70/17,8 0.041/1,04 0.052/1,32 4.9 0.150 1.62 1.9/48,3 1.85/47,0 0.95/24,1 1.20/30,5 0.70/17,8 0.052/1,32 0.063/1,60 3.7 0.279 1.25 1.9/48,3 1.80/45,7 0.95/24,1 1.20/30,5 0.70/17,8 0.052/1,32 0.063/1,60 2.4 0.550 0.92 1.9/48,3 1.80/45,7 0.95/24,1 1.20/30,5 0.70/17,8 0.052/1,32 0.063/1,60 1.5 1.176 0.56 1.9/48,3 1.80/45,7 0.95/24,1 1.20/30,5 0.70/17,8 0.052/1,32 0.063/1,60 1. Minimum inductance at rated current. Tested at 15.75 kHz, 10 Gauss level. 2. Operating temperature range –40°C to +85°C. 3. Electrical specifications at 25°C. US +1-847-639-6400 [email protected] UK +44-1236-730595 [email protected] Taiwan +886-2-2264 3646 [email protected] China +86-21-6218 8074 [email protected] Singapore + 65-6484 8412 [email protected] Document 139-2 Revised 08/15/12 © 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.