Chokes Drum Core Inductor CBP1256 The CBP1256 series Inductors are wound on “Drum” style ferrite cores and are ideal for use as Input/Output filter Inductors in Switch Mode Power Supplies. • • • • • High DC levels. Compact size. Low loss Ferrite material. Cost effective. Available with heat shrink vinyl cover. • Other applications include: Line Filters, Speaker Crossover Networks, SCR and Triac Controls etc. MECHANICAL Dimensions, Inches (mm) A 2.00 B 1.50 C Hole to clear No. 8/32 screw E See Electrical Specs. table. ELECTRICAL SPECIFICATION ISSUE A CBP1256 91/04/15 Part No. Ind. (1) Max DCR I DC (2) I Rated (3) E ± 10% (µH) (Ω) (Amp) DC (Amp) RMS (Nom.) Part No. Ind. (1) Max DCR I DC (2) I Rated (3) E ± 10% (µH) (Ω) (Amp) DC (Amp) RMS (Nom.) CBP1256-47G CBP1256-56G CBP1256-68G CBP1256-82G 4.7 5.6 6.8 8.2 0.002 0.002 0.003 0.003 149.0 122.0 103.0 90.0 35.0 35.0 35.0 35.0 1.40 1.40 1.40 1.40 CBP1256-471 CBP1256-561 CBP1256-681 CBP1256-821 470.0 560.0 680.0 820.0 0.061 0.068 0.094 0.104 12.3 11.3 10.3 9.4 13.5 13.5 11.4 11.4 1.31 1.40 1.42 1.42 CBP1256-100 CBP1256-120 CBP1256-150 CBP1256-180 10.0 12.0 15.0 18.0 0.003 0.004 0.004 0.005 79.0 71.0 64.0 58.0 35.0 35.0 35.0 27.0 1.48 1.48 1.48 1.48 CBP1256-102 CBP1256-122 CBP1256-152 CBP1256-182 1000.0 1200.0 1500.0 1800.0 0.143 0.156 0.219 0.241 8.5 7.7 6.8 6.3 9.0 9.0 7.2 7.2 1.36 1.36 1.31 1.31 CBP1256-220 CBP1256-272 CBP1256-330 CBP1256-390 22.0 27.0 33.0 39.0 0.005 0.006 0.006 0.006 54.0 50.0 46.0 43.0 27.0 27.0 27.0 27.0 1.48 1.48 1.48 1.48 CBP1256-222 CBP1256-272 CBP1256-332 CBP1256-392 2200.0 2700.0 3300.0 3900.0 0.270 0.364 0.498 0.548 5.7 5.1 4.6 4.2 7.2 5.5 4.5 4.5 1.40 1.36 1.24 1.32 CBP1256-470 CBP1256-560 CBP1256-680 CBP1256-820 47.0 56.0 68.0 82.0 0.008 0.009 0.009 0.010 41.0 36.0 32.0 30.0 27.0 21.0 21.0 21.0 1.48 1.48 1.48 1.48 CBP1256-472 CBP1256-562 CBP1256-682 CBP1256-822 4700.0 5600.0 6800.0 8200.0 0.608 0.671 0.750 1.030 3.9 3.5 3.2 2.9 4.5 4.5 4.5 4.0 1.32 1.36 1.40 1.45 CBP1256-101 CBP1256-121 CBP1256-151 CBP1256-181 100.0 120.0 150.0 180.0 0.014 0.015 0.023 0.025 26.0 24.0 21.0 19.5 27.0 27.0 21.0 21.0 1.53 1.53 1.49 1.49 NOTES CBP1256-221 CBP1256-271 CBP1256-331 CBP1256-391 220.0 270.0 330.0 390.0 0.028 0.030 0.040 0.055 18.0 16.0 14.8 13.6 21.0 21.0 17.0 13.5 1.49 1.49 1.49 1.31 1) Tolerances on values below 10 µH are ± 20%. 2) I DC is the current for which the Inductance is reduced by appr. %5 of its initial value. 3) I RATED is the current (RMS), limited by the copper loss and the guage of the wire in the winding. An ISO 9001 Registered Company 229 Colonnade Road, Nepean, Ontario, Canada K2E 7K3 Tel: (613) 226-1626 Fax: (613) 226-7124 www.filtran.com 31-6