Chokes Drum Core Inductor CBP1255 The CBP1255 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 1.60 B 1.45 C Hole to clear No. 8/32 screw E See Electrical Specs. table. ELECTRICAL SPECIFICATION ISSUE A CBP1255 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.) CBP1255-33G CBP1255-39G CBP1255-47G CBP1255-56G 3.3 3.9 4.7 5.6 0.002 0.003 0.003 0.003 125.0 102.0 87.0 87.0 35.0 35.0 35.0 35.0 1.11 1.11 1.11 1.11 CBP1255-331 CBP1255-391 CBP1255-471 CBP1255-561 330.0 390.0 470.0 560.0 0.049 0.070 0.078 0.105 10.0 9.7 8.8 8.1 13.5 11.4 11.4 9.0 1.11 1.15 1.07 1.07 CBP1255-68G CBP1255-82G CBP1255-100 CBP1255-120 6.8 8.2 10.0 12.0 0.003 0.003 0.004 0.004 87.0 76.0 67.0 60.0 35.0 35.0 35.0 35.0 1.11 1.11 1.11 1.16 CBP1255-681 680.0 CBP1255-821 820.0 CBP1255-102 1000.0 CBP1255-122 1200.0 0.115 0.127 0.176 0.195 7.4 6.7 6.1 5.5 9.0 9.0 7.2 7.2 1.07 1.12 1.12 1.12 CBP1255-150 CBP1255-180 CBP1255-220 CBP1255-272 15.0 18.0 22.0 27.0 0.005 0.007 0.007 0.008 49.0 45.0 42.0 35.0 35.0 27.0 27.0 27.0 1.16 1.16 1.16 1.16 CBP1255-152 CBP1255-182 CBP1255-222 CBP1255-272 1500.0 1800.0 2200.0 2700.0 0.274 0.302 0.338 0.459 5.0 4.5 4.1 3.7 5.5 5.5 5.5 4.5 1.12 1.13 1.16 1.02 CBP1255-330 CBP1255-390 CBP1255-470 CBP1255-560 33.0 39.0 47.0 56.0 0.009 0.010 0.011 0.013 34.0 30.0 28.0 26.0 27.0 27.0 27.0 21.0 1.16 1.16 1.16 1.16 CBP1255-332 CBP1255-392 CBP1255-472 CBP1255-562 3300.0 3900.0 4700.0 5600.0 0.642 0.699 0.775 0.843 3.4 3.0 2.8 2.6 4.0 4.0 4.0 4.0 1.02 1.14 1.14 1.14 CBP1255-680 CBP1255-820 CBP1255-101 CBP1255-121 68.0 82.0 100.0 120.0 0.015 0.017 0.018 0.022 23.0 20.0 19.0 18.0 21.0 21.0 21.0 17.0 1.25 1.28 1.25 1.16 NOTES CBP1255-151 CBP1255-181 CBP1255-221 CBP1255-271 150.0 180.0 220.0 270.0 0.025 0.035 0.040 0.044 16.0 14.0 13.0 11.0 17.0 13.5 13.5 13.5 1.16 1.10 1.10 1.10 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 31-5