Drum Cores CTDR3 Series Not shown at actual size. 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: -20C to +100C Inductance Tolerance: 10%, 20% Testing: Inductance is tested on an HP4284A at 1.0 kHz Packaging: Bulk pack Leads: Tinned for PC mounting to within 1/16" of the parts body Sleeving: Coils finished with UL-VW-1 sleeving Mounting: Center hole furnished for mechanical mounting Rated DC Current: Measured at 20C Saturation Current: Lowers inductance by 5% Miscellaneous: Non-standard tolerances and other values available Additional Information: Additional electrical & physical information available upon request Samples available. See website for ordering information. SPECIFICATIONS Parts are marked to indicate tolerance available. K = 10%, M = 20% Part Number Inductance (H) L Test Freq. (kHz) DCR Max. ) ( Saturation DC (A) Rated DC (A) Dimension E Approx. Inches CTDR3-1R5M CTDR3-2R2M CTDR3-3R3M CTDR3-4R7M CTDR3-6R8M CTDR3-8R2M 1.5 2.2 3.3 4.7 6.8 8.2 1.0 1.0 1.0 1.0 1.0 1.0 .003 .003 .003 .003 .004 .004 116 90 74 54 47 42 21 21 21 21 21 21 .80 .80 .80 .80 .80 .80 CTDR3-100K 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 .01 .01 .01 .03 .02 .02 .03 .03 .03 38 35 32 29 25 23 20 19 19 17 15 14 17 13 13 13 13 13 13 11 9.0 9.0 9.0 9.0 .70 .69 .69 .69 .69 .79 .79 .79 .75 .75 .75 .75 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 .03 .05 .06 .07 .08 .11 .12 .17 .19 .21 .26 .29 13 12 11 9.7 8.7 7.9 7.1 67 6.0 5.5 5.0 4.5 9.0 7.2 5.5 5.5 5.5 4.5 4.5 4.0 4.0 4.0 2.8 2.8 .78 .75 .78 .78 .78 .75 .81 .75 .75 .75 .72 .84 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 .43 .46 .52 .71 1.0 1.1 1.3 1.7 1.9 4.1 3.7 3.4 2.8 2.5 2.3 2.0 1.8 1.7 2.0 2.0 2.0 1.6 1.3 1.3 1.3 1.0 1.0 .75 .75 .75 .77 .77 .77 .75 .75 .75 PHYSICAL DIMENSIONS Size mm inches A Max. B C D Max. Nom. Nom. 21.3 28 12.7 4.95 0.84 1.1 0.5 0.2 Volume Manufacturer of Inductive Components 800-684-5322 Inside US 949-453-1811 Outside US 7.12.14.01 Copyright (c) 2002 by CT Magnetics. All rights reserved. CT Magnetics reserves the right to make improvements or change specifications without notice. 87 CENTRAL Technologies From 1.5 H to 4,700 H ctparts.com