Chokes Drum Core Inductor CBP1254 The CBP1254 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 1.05 C Hole to clear No. 8/32 screw E See Electrical Specs. table. ELECTRICAL SPECIFICATION ISSUE A CBP1254 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.) CBP1254-33G CBP1254-39G CBP1254-47G CBP1254-56G 3.3 3.9 4.7 5.6 0.003 0.003 0.003 0.004 115.0 95.0 95.0 79.0 27.0 27.0 27.0 27.0 1.11 1.11 1.11 1.11 CBP1254-331 CBP1254-391 CBP1254-471 CBP1254-561 330.0 390.0 470.0 560.0 0.074 0.082 0.114 0.125 11.4 10.9 9.2 8.3 9.0 7.2 7.2 7.2 1.13 1.19 1.13 1.13 CBP1254-68G CBP1254-82G CBP1254-100 CBP1254-120 6.8 8.2 10.0 12.0 0.004 0.004 0.005 0.005 79.0 69.0 61.0 55.0 27.0 27.0 27.0 27.0 1.11 1.11 1.11 1.11 CBP1254-681 680.0 CBP1254-821 820.0 CBP1254-102 1000.0 CBP1254-122 1200.0 0.139 0.154 0.122 0.232 7.6 6.8 6.2 5.7 7.2 7.2 5.5 5.5 1.13 1.19 1.06 1.16 CBP1254-150 CBP1254-180 CBP1254-220 CBP1254-270 15.0 18.0 22.0 27.0 0.006 0.008 0.009 0.010 49.0 41.0 38.0 36.0 27.0 27.0 21.0 21.0 1.11 1.11 1.11 1.15 CBP1254-152 CBP1254-182 CBP1254-222 CBP1254-272 1500.0 1800.0 2200.0 2700.0 0.324 0.360 0.494 0.555 5.1 4.6 4.2 3.8 4.5 4.5 4.0 4.0 1.16 1.16 1.06 1.06 CBP1254-330 CBP1254-390 CBP1254-470 CBP1254-560 33.0 39.0 47.0 56.0 0.011 0.012 0.018 0.019 31.0 20.0 30.2 26.1 21.0 21.0 14.4 14.4 1.15 1.15 1.14 1.14 CBP1254-332 CBP1254-392 CBP1254-472 CBP1254-562 3300.0 3900.0 4700.0 5600.0 0.773 0.845 1.140 1.600 3.4 3.1 2.9 2.5 2.8 2.8 2.0 2.0 1.06 1.13 1.11 1.11 CBP1254-680 CBP1254-820 CBP1254-101 CBP1254-121 68.0 82.0 100.0 120.0 0.021 0.023 0.025 0.028 24.4 22.4 20.0 18.0 14.4 14.4 14.4 14.4 1.14 1.14 1.14 1.19 NOTES CBP1254-151 CBP1254-181 CBP1254-221 CBP1254-271 150.0 180.0 220.0 270.0 0.040 0.045 0.050 0.056 16.4 14.6 13.2 11.8 11.4 11.4 11.4 11.4 1.13 1.13 1.13 1.16 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 31-4