RoHS WFB Wound Ferrite Beads 0.093±0.005 (2.36±0.13) 0.130±0.005 (3.30±0.13) 0.093±0.005 (2.36±0.13) 1.5 NOMINAL 0.393±0.02 (9.98±0.51) Dimensions: 0.236±0.02 (5.99±0.51) 0.590±0.02 (14.99±0.51) Inches (mm) 1.5 NOMINAL 24AWG 1 2 Figure # 3 4 5 1.5 Turn 2.0 Turn 2.5 Turn 3.0 Turn 1.5 Turn Twice The WFB Series Wide Band Chokes are 6 Allied Part Number Core Material Number of Turns Impedance Ohms Min. Frequency (MHz) Fig # hole, ferrite beads with 1.5, 2.0, 2.5, 2 x 1.5 or WFB-1.5-281-1-RC 1 1 1/2 280 120 1 3.0 turns of tinned copper wire. They are ideal WFB-1.5-301-2-RC 2 1 1/2 300 180 1 for interference suppression in a variety of WFB-1.5-361-3-RC 3 1 1/2 360 250 1 WFB-2.0-401-1-RC 1 2.0 400 50 2 WFB-2.0-481-2-RC 2 2.0 480 100 2 WFB-2.0-601-3-RC 3 2.0 600 180 2 WFB-2.5-601-1-RC 1 2 1/2 600 50 3 WFB-2.5-601-2-RC 2 2 1/2 600 100 3 WFB-2.5-681-3-RC 3 2 1/2 680 180 3 WFB-3.0-681-1-RC 1 3.0 680 50 4 capacitors, self resonance provides additional WFB-3.0-681-2-RC 2 3.0 680 100 4 attenuation. WFB-3.0-601-3-RC 3 3.0 600 180 4 WFB-3.0-801-Y7-RC Y7 3.0 800 100 4 WFB-3.0-801-N-RC N 3.0 800 100 4 WFB-2 x 1.5-601-1-RC 1 2 x 1 1/2 600* 50 5 WFB-2 x 1.5-601-2-RC 2 2 x 1 1/2 600* 100 5 WFB-2 x 1.5-561-3-RC 3 2 x 1 1/2 560* 180 5 applications where broad band characteristics are required. Wide Band Chokes are essentially resistive with flat impedance matching characteristics above 60 MHz. When used with small ceramic Physical Packaging: 500 pieces per bag. 8000 pieces per box. *Measured with the two 1 1/2 turn windings in series. All specifications subject to change without notice. 714-665-1140 ALLIED COMPONENTS INTERNATIONAL REVISED 10/07/10 www.alliedcomponents.com