Chokes Drum Core Inductor CBP1252 The CBP1252 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 0.83 B 0.84 C Hole to clear No. 4/40 screw E See Electrical Specs. table. ELECTRICAL SPECIFICATION ISSUE A CBP1252 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.) CBP1252-22G CBP1252-27G CBP1252-33G CBP1252-39G 2.2 2.7 3.3 3.9 0.004 0.005 0.005 0.005 68.0 58.0 58.0 50.0 11.4 11.4 11.4 11.4 0.62 0.62 0.62 0.62 CBP1252-101 CBP1252-121 CBP1252-151 CBP1252-181 100.0 120.0 150.0 180.0 0.080 0.090 0.098 0.110 10.4 9.4 8.6 7.8 4.0 4.0 4.0 4.0 0.59 0.59 0.59 0.67 CBP1252-47G CBP1252-56G CBP1252-68G CBP1252-82G 4.7 5.6 6.8 8.2 0.005 0.006 0.007 0.007 50.0 44.0 39.0 36.0 11.4 11.4 11.4 11.4 0.62 0.62 0.62 0.62 CBP1252-221 CBP1252-271 CBP1252-331 CBP1252-391 220.0 270.0 330.0 390.0 0.150 0.213 0.305 0.320 7.0 6.3 5.2 4.9 2.8 2.0 1.6 1.6 0.59 0.56 0.59 0.59 CBP1252-100 CBP1252-120 CBP1252-150 CBP1252-180 10.0 12.0 15.0 18.0 0.009 0.009 0.013 0.018 30.0 27.0 25.0 22.0 11.4 11.4 9.0 7.2 0.62 0.62 0.63 0.63 CBP1252-471 CBP1252-561 CBP1252-681 CBP1252-821 470.0 560.0 680.0 820.0 0.355 0.388 0.430 0.590 4.5 4.1 3.7 3.4 1.6 1.6 1.6 1.3 0.59 0.59 0.59 0.59 CBP1252-220 CBP1252-270 CBP1252-330 CBP1252-390 22.0 27.0 33.0 39.0 0.019 0.026 0.029 0.030 21.0 20.0 18.6 17.0 7.2 5.5 5.6 5.5 0.63 0.55 0.55 0.59 CBP1252-102 CBP1252-122 CBP1252-152 CBP1252-182 CBP1252-222 1000.0 1200.0 1500.0 1800.0 2200.0 0.818 1.140 1.260 1.390 1.540 3.1 2.7 2.4 2.2 2.0 1.0 0.8 0.8 0.8 0.8 0.59 0.59 0.59 0.59 0.59 CBP1252-470 CBP1252-560 CBP1252-680 CBP1252-820 47.0 56.0 68.0 82.0 0.035 0.039 0.053 0.060 15.1 13.6 12.7 11.3 5.5 5.5 4.8 4.8 0.63 0.63 0.66 0.66 NOTES 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 31-2