Document 178-1 Shielded Power Inductors – DT1608C The Coilcraft DT1608 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 new designs, consider the LPS4018 as an alternative to this series. The LPS4018 series is more cost effective, features a smaller footprint, lower profile and better current handling. We will continue to manufacture and support the DT1608C indefinitely. Specifications Inductance2 DCR max SRF typ Part number1 ±20% (µH) (Ohms) (MHz) DT1608C-102ML_ 1.0 0.065 180 DT1608C-152ML_ 1.5 0.070 120 DT1608C-222ML_ 2.2 0.075 100 DT1608C-332ML_ 3.3 0.080 70 DT1608C-472ML_ 4.7 0.085 60 DT1608C-682ML_ 6.8 0.090 50 DT1608C-103ML_ 10 0.125 45 DT1608C-153ML_ 15 0.135 35 DT1608C-223ML_ 22 0.160 25 DT1608C-333ML_ 33 0.275 20 DT1608C-473ML_ 47 0.300 17 DT1608C-683ML_ 68 0.575 14 DT1608C-104ML_ 100 1.10 12 DT1608C-154ML_ 150 1.40 7.0 DT1608C-224ML_ 220 2.25 7.0 DT1608C-334ML_ 330 2.90 6.0 DT1608C-474ML_ 470 3.60 4.0 DT1608C-684ML_ 680 4.55 3.5 DT1608C-105ML_ 1000 8.10 2.5 1. When ordering, please specify termination and packaging codes: DT1608C-106MLC Termination: L = RoHS compliant gold over nickel over moly-manganese. Special order: T = RoHS tin-silver-copper (95.5/4/0.5) or S = non-RoHS tin-lead (63/37). Packaging: C = 7″ machine-ready reel. EIA-481 embossed plastic tape (750 parts per full reel). B = Less than full reel. In tape, but not machine ready. To have a leader and trailer added ($25 charge), use code letter C instead. D = 13″ machine-ready reel. EIA-481 embossed plastic tape (2500 parts per full reel). Inductance rating3 (µH) 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 Operating Parameters Current Energy rating4 storage max (A) (µJoules) 2.0 1.8 1.9 1.8 1.5 1.8 1.2 1.4 1.2 1.6 1.0 1.9 0.7 1.2 0.6 1.1 0.5 1.2 0.45 1.5 0.34 1.3 0.29 1.4 0.24 1.5 0.20 1.4 0.17 1.6 0.16 1.4 0.14 1.5 0.12 1.4 0.08 1.4 Switching frequency max 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 2. Inductance tested at 0.1 Vrms, 100 kHz, 0 Adc. 3. Measured at the rated current. Refer to L vs Current curves for details. 4. Average maximum allowable current. DT Series inductors are designed for current spikes as high as twice the current rating. 5. Ambient temperature range: –40°C to +85°C 6. Storage temperature range: Component: –40°C to +85°C Packaging: –55°C to +80°C 7. Resistance to soldering heat: Three reflows at >217°C for 90 seconds (+260°C ±5°C for 20 – 40 seconds), allowing parts to cool to room temperature between. 8. Electrical specifications at 25°C. See Color Coding section for part marking information. Refer to Doc 362 “Soldering Surface Mount Components” before soldering. Document 178-1 Revised 05/20/10 Document 178-2 Shielded Power Inductors – DT1608C Series Typical L vs Current 0.160 dia 4,06 10000 0.115max 2,92 Inductance (µH) 1000 0.260 max 6,60 -105 0.070 1,78 -104 100 0.175max 4,45 -103 10 0.160 4,06 0.055 1,40 0.050 1,27 0.140 3,56 0.090 2,29 0.170min 4,32 0.270 6,86 0.040 1,02 Recommended Land Pattern -102 1 Part Marking 1st significant digit Dash number 0.01 0.1 Current (A) 1 XXX 0.1 10 2nd significant digit Multiplier Part marking since Feb. 2005. Parts manufactured prior to that date may have color dots. Isat Derating Weight: Terminations: 136 – 157 mg Gold over nickel over moly-manganese. Other terminations available at additional cost. Tape and reel: 750/7″ reel; 2500/13″ reel 12 mm tape width For packaging data see Tape and Reel Specifications section. +30 +20 +10 0 -10 25°C Change in rated current (%) Part marking prior to Feb. 2005 Visit www.coilcraft.com/colrpowr.cfm for color dot marking details. -20 -30 -40 -20 0 20 40 60 80 100 120 140 Ambient temperature (°C) Document 178-2 Revised 05/20/10