Wide Band Chokes - Axial ctparts.com SPECIFICATIONS CTWB Series The "-S" suffix denotes the "secondary bead" material available. CTWBF Please specify “F” for RoHS compliant From 1.5T’s to 2x1.5T’s Impedance @ 100 MHz Min. Ω) (Ω Lead Wire Size (AWG) Wire Length (inches) Number of Turns CTWB_-1.5 CTWB_-1.5-S 375 400 24 24 1.5 1.5 1.5 1.5 1 1 CTWB_-2x1.5 CTWB_-2x1.5-S 375 400 24 24 1.5 1.5 2x1.5 2x1.5 5 5 CTWB_-2.0 CTWB_-2.0-S 480 600 24 24 1.5 1.5 2 2 2 2 CTWB_-2.5 CTWB_-2.5-S 580 675 24 24 1.5 1.5 2.5 2.5 3 3 CTWB_-3.0 CTWB_-3.0-S 550 1140 24 24 1.5 1.5 3 3 4 4 Part Number Not shown at actual size. Refer to Figure # Ω) MINIMUM IMPEDANCE (Ω RoHS Compliant Available Bead Material 50 MHz 100 MHz 10 MHz 1 170 320 375 250 400 325 2 240 520 480 425 600 300 3 320 680 580 550 675 275 4 400 800 550 1000 1140 800 5 170 320 375 250 400 325 WINDING PATTERNS CHARACTERISTICS Description: Wide-band wire-wound beads Applications: Used for EMI and RA filtering applications. Also used in RF circuits to subdue “parasitic oscillation” at VHF and UHF Testing: Impedance is tested on an HP4287A at 100 MHz Miscellaneous: RoHS Compliant available. Additional Information: Additional electrical & physical information available upon request Samples available. See website for ordering information. Fig. 1 CTWB-1.5 CTWB-1.5-S Fig. 2 CTWB-2.0 CTWB-2.0-S WIDE BAND CHOKE CORE Size mm inches A B C D Fig. 3 6.0±0.25 0.75±0.15 10±0.25 3.5 Ref. CTWB-2.5 CTWB-2.5-S 0.236 0.032 0.394 0.138 Fig. 4 CTWB-3.0 CTWB-3.0-S Fig. 5 CTWB-2x1.5 CTWB-2x1.5-S Technologies 01.10.07 CENTRAL “Secondary Bead” Material 50 MHZ 100 MHz 200 MHz Figure # Manufacturer of Passive and Discrete Semiconductor Components 800-684-5322 Inside US 949-453-1811 Outside US Copyright © 2007 by CT Magnetics, DBA Central Technologies. All rights reserved. CT Magnetics reserves the right to make improvements or change specifications without notice