Drum Cores - Radial Leaded CTDR1 Series From 1.0 µH to 560 µH Not shown at actual size. RoHS Compliant Available 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 Temperature Rise: 50°C Max. at IDC IDC: Current at which inductance drops 10% Max. Inductance Tolerance: ±10%, 20% Testing: Inductance is tested on an HP4284A at 1.0 kHz, 1V Packaging: Bulk pack Sleeving: Coils finished with UL-VW-1 sleeving Mounting: Center hole furnished for mechanical mounting Miscellaneous: RoHS Compliant available. 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 Part numbers indicate available tolerance. K = ±10%, M = ±20% CTDR1F Please specify “F” for RoHS compliant. Part Number Inductance (µH) L Test Freq. (kHz) DCR Max. Ω) (Ω IDC Max. (A) CTDR1_-1R0M CTDR1_-1R2M CTDR1_-1R5M CTDR1_-1R8M CTDR1_-2R2M CTDR1_-2R7M CTDR1_-3R3M CTDR1_-3R9M CTDR1_-4R7M CTDR1_-5R6M CTDR1_-6R8M CTDR1_-8R2M 1.0 1.2 1.5 1.8 2.2 2.7 3.3 3.9 4.7 5.6 6.8 8.2 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 .003 .003 .004 .004 .005 .005 .005 .006 .007 .007 .008 .009 9.0 9.0 9.0 9.0 9.0 9.0 9.0 9.0 9.0 9.0 9.0 9.0 CTDR1_-100M CTDR1_-120K CTDR1_-150K CTDR1_-180K CTDR1_-220K CTDR1_-270K CTDR1_-330K CTDR1_-390K CTDR1_-470K CTDR1_-560K CTDR1_-680K CTDR1_-820K 10 12 15 18 22 27 33 39 47 56 68 82 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 .010 .011 .015 .016 .025 .030 .040 .046 .062 .069 .077 .083 9.0 9.0 7.2 7.2 5.5 4.5 4.0 4.0 2.8 2.8 2.8 2.8 CTDR1_-101K CTDR1_-121K CTDR1_-151K CTDR1_-181K CTDR1_-221K CTDR1_-271K CTDR1_-331K CTDR1_-391K CTDR1_-471K CTDR1_-561K 100 120 150 180 220 270 330 390 470 560 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 .095 .127 .181 .217 .240 .300 .336 .460 .636 .696 2.8 2.0 1.6 1.6 1.6 1.6 1.3 1.0 0.8 0.8 PHYSICAL DIMENSIONS Size mm inches A B Max. Max. C D E Typ. Typ. 22.0 17.0 15±2 3.0 12 0.87 0.67 0.59±0.08 0.12 0.47 E A CENTRAL Technologies 04.20.05 Manufacturer of Inductors, Chokes, Coils, Beads, Transformers & Toroids 800-684-5322 Inside US 949-453-1811 Outside US Copyright © 2005 by CT Magnetics, DBA Central Technologies. All rights reserved. CT Magnetics reserves the right to make improvements or change specifications without notice C D B