Chokes Drum Core Inductor CBP1253 The CBP1253 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 1.10 B 0.84 C Hole to clear No. 4/40 screw E See Electrical Specs. table. ELECTRICAL SPECIFICATION ISSUE A CBP1253 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.) CBP1253-22G CBP1253-27G CBP1253-33G CBP1253-39G 2.2 2.7 3.3 3.9 0.003 0.003 0.003 0.003 90.0 74.0 74.0 62.0 21.0 21.0 21.0 21.0 0.80 0.80 0.80 0.80 CBP1253-221 CBP1253-271 CBP1253-331 CBP1253-391 220.0 270.0 330.0 390.0 0.080 0.110 0.122 0.169 8.7 7.9 7.1 6.7 5.5 4.5 4.5 4.0 0.78 0.75 0.71 0.75 CBP1253-47G CBP1253-56G CBP1253-68G CBP1253-82G 4.7 5.6 6.8 8.2 0.003 0.003 0.004 0.004 54.0 54.0 47.0 42.0 21.0 21.0 21.0 21.0 0.80 0.80 0.80 0.80 CBP1253-471 CBP1253-561 CBP1253-681 CBP1253-821 470.0 560.0 680.0 820.0 0.187 0.205 0.256 0.288 6.0 5.5 5.0 4.5 4.0 4.0 2.8 2.8 0.75 0.75 0.72 0.84 CBP1253-100 CBP1253-120 CBP1253-150 CBP1253-180 10.0 12.0 15.0 18.0 0.006 0.008 0.009 0.010 38.0 35.0 32.0 29.0 17.0 13.5 13.5 13.5 0.70 0.69 0.69 0.69 CBP1253-102 CBP1253-122 CBP1253-152 CBP1253-182 1000.0 1200.0 1500.0 1800.0 0.426 1.462 1.518 1.705 4.1 3.7 3.4 2.8 2.0 2.0 2.0 1.6 0.75 0.75 0.75 0.77 CBP1253-220 CBP1253-270 CBP1253-330 CBP1253-390 22.0 27.0 33.0 39.0 0.011 0.012 0.017 0.022 25.0 23.0 20.0 19.0 13.5 13.5 13.5 11.4 0.79 0.79 0.79 0.79 CBP1253-222 CBP1253-272 CBP1253-332 CBP1253-332 2200.0 2700.0 3300.0 3900.0 1.020 1.140 1.270 1.670 2.5 2.3 2.0 1.8 1.3 1.3 1.3 1.0 0.77 0.77 0.75 0.75 CBP1253-470 CBP1253-560 CBP1253-680 CBP1253-820 47.0 56.0 68.0 82.0 0.024 0.026 0.029 0.032 19.0 17.5 15.6 14.0 9.0 9.0 9.0 9.0 0.75 0.75 0.75 0.75 NOTES CBP1253-101 CBP1253-121 CBP1253-151 CBP1253-181 100.0 120.0 150.0 180.0 0.034 0.046 0.064 0.072 13.2 12.1 10.8 9.7 9.0 7.2 5.5 5.5 0.78 0.75 0.78 0.78 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 31-3