Drum Cores - Radial Leaded CTDR4F Series From 1.8 µH to 15,000 µH Not shown at actual size. RoHS Compliant CHARACTERISTICS Description: Radial leaded drum core inductor Applications: Used in switching regulators, power amplifiers, power supplies, SCR and Triac controls, speaker crossover networks, RFI suppression and filters Operating Temperature: -25°C to +85°C Inductance Tolerance: ±10%, ±20% Testing: Inductance is tested on an HP4284A at 1.0 kHz Saturated Current: Lowers inductance by 5% Packaging: Bulk pack Sleeving: Coils finished with UL-VW-1 sleeving Mounting: Center hole furnished for mechanical mounting Miscellaneous: RoHS Compliant. Non-standard tolerances and other values available. Additional Information: Additional electrical & physical information available upon request Samples available. See website for ordering information. ctparts.com SPECIFICATIONS Parts numbers indicate available tolerance. K = ±10%, M = ±20% Inductance at 1kHz (µH) DCR Max. Ω) (Ω Saturated Current (A) Wire Dia. Ref. (inch) Dim. D (inch) CTDR4F-1R8M CTDR4F-2R2M CTDR4F-2R7M CTDR4F-3R3M CTDR4F-4R7M CTDR4F-5R6M CTDR4F-6R8M CTDR4F-8R2M 1.8 2.2 2.7 3.3 4.7 5.6 6.8 8.2 0.002 0.002 0.003 0.003 0.003 0.004 0.004 0.004 27.0 27.0 27.0 27.0 27.0 27.0 27.0 27.0 0.081 0.081 0.081 0.081 0.081 0.081 0.081 0.081 1.11 1.11 1.11 1.11 1.11 1.11 1.15 1.15 CTDR4F-100K CTDR4F-120K CTDR4F-150K CTDR4F-180K CTDR4F-220K CTDR4F-270K CTDR4F-330K CTDR4F-390K CTDR4F-470K CTDR4F-560K CTDR4F-680K CTDR4F-820K 10 12 15 18 22 27 33 39 47 56 68 82 0.005 0.005 0.006 0.008 0.009 0.010 0.011 0.012 0.018 0.019 0.021 0.023 27.0 27.0 27.0 27.0 21.0 21.0 21.0 21.0 14.4 14.4 14.4 14.4 0.081 0.081 0.081 0.081 0.081 0.081 0.072 0.072 0.072 0.064 0.064 0.064 1.15 1.15 1.15 1.15 1.15 1.15 1.15 1.15 1.15 1.15 1.15 1.15 CTDR4F-101K CTDR4F-121K CTDR4F-151K CTDR4F-181K CTDR4F-221K CTDR4F-271K CTDR4F-331K CTDR4F-391K CTDR4F-471K CTDR4F-561K CTDR4F-681K CTDR4F-821K 100 120 150 180 220 270 330 390 470 560 680 820 0.025 0.028 0.040 0.045 0.050 0.056 0.074 0.082 0.114 0.125 0.139 0.154 14.4 14.4 11.4 11.4 11.4 11.4 11.4 9.0 7.2 7.2 7.2 7.2 0.064 0.057 0.057 0.057 0.051 0.051 0.051 0.045 0.045 0.040 0.040 0.040 1.15 1.15 1.15 1.15 1.15 1.15 1.15 1.15 1.15 1.15 1.15 1.15 CTDR4F-102K CTDR4F-122K CTDR4F-152K CTDR4F-182K CTDR4F-222K CTDR4F-272K CTDR4F-332K CTDR4F-392K CTDR4F-472K CTDR4F-562K CTDR4F-682K CTDR4F-822K 1000 1200 1500 1800 2200 2700 3300 3900 4700 5600 6800 8200 0.216 0.232 0.324 0.360 0.494 0.555 0.773 0.845 1.140 1.600 1.760 1.950 5.5 5.5 4.5 4.5 4.0 4.0 2.8 2.8 2.0 2.0 1.6 1.6 0.040 0.036 0.036 0.036 0.032 0.032 0.029 0.029 0.029 0.025 0.025 0.023 1.15 1.14 1.14 1.14 1.10 1.12 1.10 1.10 1.12 1.09 1.12 1.09 CTDR4F-103K CTDR4F-123K CTDR4F-153K 10000 12000 15000 2.760 3.040 3.390 1.3 1.3 1.3 0.023 0.020 0.020 1.11 1.08 1.10 Part Number PHYSICAL DIMENSIONS Size mm inches A B C Max. Max. Max. 26.2 38.1 12.7 1.03 1.50 0.50 D A C 02.11.09 CENTRAL TECHNOLOGIES Manufacturer of Passive Components 800-684-5322 Inside US 949-453-1811 Outside US Copyright © 2009 by CT Magnetics, DBA Central Technologies. All rights reserved. CT Magnetics reserves the right to make improvements or change specifications without notice B