Document 178-1 SMT Power Inductors – DT1608 Series The Coilcraft DT1608 Series represents the ultimate in cost-effective, miniature power inductors. The DT Series is magnetically shielded and the materials used provide natural heat sinking. This allows these parts to be used at relatively high currents. Even at 150% of rated current, the temperature rise is less than 15°C. Because of their “swinging” inductance vs current characteristics, the DT1608 Series can be used as ultra high L inductors at zero or low current. For free evaluation samples or to order, contact Coilcraft or visit www.coilcraft.com. Specifications Operating Parameters Part number1 Inductance ±20%2 (µH) DCR max (Ohms) SRF typ (MHz) Inductance rating3 (µH) Current rating4 (A) DT1608C-102 DT1608C-152 DT1608C-222 DT1608C-332 DT1608C-472 DT1608C-682 DT1608C-103 DT1608C-153 DT1608C-223 DT1608C-333 DT1608C-473 DT1608C-683 DT1608C-104 DT1608C-154 DT1608C-224 DT1608C-334 DT1608C-474 DT1608C-684 DT1608C-105 1.0 1.5 2.2 3.3 4.7 6.8 10 15 22 33 47 68 100 150 220 330 470 680 1000 0.065 0.070 0.075 0.080 0.085 0.090 0.125 0.135 0.160 0.275 0.300 0.575 1.10 1.40 2.25 2.90 3.60 4.55 8.10 180 120 100 70 60 50 45 35 25 20 17 14 2 7 7 6 4 3.5 2.5 0.60 0.80 0.90 1.5 2.0 3.0 5.0 6.0 10 12 20 30 40 60 90 100 150 200 400 2.0 1.9 1.5 1.2 1.2 1.0 0.7 0.6 0.5 0.45 0.34 0.29 0.24 0.20 0.17 0.16 0.14 0.12 0.08 Energy Switching storage max frequency (µJoules) max 1.8 1.8 1.8 1.4 1.6 1.9 1.2 1.1 1.2 1.5 1.3 1.4 1.5 1.4 1.6 1.4 1.5 1.4 1.4 1 MHz 1 MHz 1 MHz 1 MHz 1 MHz 1 MHz 1 MHz 1 MHz 1 MHz 1 MHz 1 MHz 1 MHz 1 MHz 500 kHz 500 kHz 500 kHz 500 kHz 500 kHz 500 kHz 1. Part number on reel label will have a suffix to indicate packaging: C = machine ready 7″ reel, B = partial reel, D = machine-ready 13″ reel. 2. Inductance tested at 0.1 Vrms, 100 kHz, 0 Adc. 3. Measured at the rated current. Refer to L vs Current curves for more detail. 4. Average maximum allowable current. DT Series inductors are designed for current spikes as high as 2 × the current rating. 5. Operating temperature range –40°C to +85°C. 6. Electrical specifications at 25°C. See Qualification Standards section for environmental and test data. See Color Coding section for part marking information. Specifications subject to change without notice. Please check our website for latest information. Document 178-1 Revised 10/31/03 Document 178-2 SMT Power Inductors – DT1608 Series Typical L vs Current 1st significant digit 10000 0.160 dia 4,06 2nd significant digit 1000 Inductance (µH) 0.115 max 2,92 Multiplier 0.260 max 6,60 100 10 0.175 max 4,45 0.140 3,56 0.090 2,29 0.170 min 4,32 1 0.160 4,06 0.055 1,40 0.050 1,27 0.270 6,86 0.040 1,02 Recommended Land Pattern 0.1 0.01 1 0.1 Current (A) 10 Weight: 136 – 157 mg Terminations: Nickel/gold over moly-manganese Tape and reel: 750/7″ reel; 2500/13″ reel 12 mm tape width For packaging data see Tape and Reel Specifications section. Specifications subject to change without notice. Please check our website for latest information. Document 178-2 Revised 12/10/04