Drum Cores - Radial Leaded CTDR3 Series From 1.0 µH to 4,700 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 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 Parts numbers indicate available tolerance. K = ±10%, M = ±20% CTDR3F Please specify “F” for RoHS compliant. Part Number Inductance (µH) L Test Freq. (kHz) DCR Max. Ω) (Ω IDC Max. (A) CTDR3_-1R0M CTDR3_-1R2M CTDR3_-1R5M CTDR3_-2R2M CTDR3_-2R7M CTDR3_-3R3M CTDR3_-3R9M CTDR3_-4R7M CTDR3_-5R6M CTDR3_-6R8M CTDR3_-8R2M 1.0 1.2 1.5 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 .003 .003 .003 .003 .003 .003 .003 .003 .003 .004 .004 21 21 21 21 21 21 21 21 21 21 21 CTDR3_-100M CTDR3_-120K CTDR3_-150K CTDR3_-180K CTDR3_-220K CTDR3_-270K CTDR3_-330K CTDR3_-390K CTDR3_-470K CTDR3_-560K CTDR3_-680K CTDR3_-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 .006 .008 .009 .010 .011 .012 .017 .022 .024 .026 .029 .032 17 13.5 13.5 13.5 13.5 13.5 13.5 11.4 9.0 9.0 9.0 9.0 CTDR3_-101K CTDR3_-121K CTDR3_-151K CTDR3_-181K CTDR3_-221K CTDR3_-271K CTDR3_-331K CTDR3_-391K CTDR3_-471K CTDR3_-561K CTDR3_-681K CTDR3_-821K 100 120 150 180 220 270 330 390 470 560 680 820 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 .034 .046 .064 .072 .080 .110 .122 .169 .187 .205 .256 .288 9.0 7.2 5.5 5.5 5.5 4.5 4.5 4.0 4.0 4.0 2.8 2.8 CTDR3_-102K CTDR3_-122K CTDR3_-152K CTDR3_-182K CTDR3_-222K CTDR3_-272K CTDR3_-332K CTDR3_-392K CTDR3_-472K 1000 1200 1500 1800 2200 2700 3300 3900 4700 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 .426 .462 .518 .705 1.02 1.14 1.27 1.67 1.86 2.0 2.0 2.0 1.6 1.3 1.3 1.3 1.0 1.0 PHYSICAL DIMENSIONS Size mm inches A B Max. Max. C D 22.0 28 15±2 4.0 22.0 0.87 1.1 0.59±0.08 0.16 0.87 D E A C Technologies 08.25.06 CENTRAL E Typ. Manufacturer of Inductors, Chokes, Coils, Beads, Transformers & Toroids 800-684-5322 Inside US 949-453-1811 Outside US Copyright © 2006 by CT Magnetics, DBA Central Technologies. All rights reserved. CT Magnetics reserves the right to make improvements or change specifications without notice B