Toroidal Inductors Medium Current CTP4553 CTP4553 is a medium current inductor with the following data and features: Four mounting styles are offered: 1 Flying leads (1.00”), for vertical or horizontal mounting. 2 4-pin header, for vertical mounting. 3 Threaded center hole, flying leads (2.00”). 4 2-pin header, for vertical mounting. • Core type: 0.68” o.d., Moly-Permalloy Powder, perm 60. • Power rating: 0.86 watts for temp. rise 50˚C. • Typical applications: Switching Inductors in Switch Mode Power Supplies. MECHANICAL Style 1 Style 2 0.85 Style 3 0.95 0.33 Style 4 0.85 0.25 0.45 Thread #6-32 0.83 0.75 0.60 0.30 0.95 0.80 0.67 1.00 0.45 2.00 0.50 ELECTRICAL SPECIFICATION CTP4553 Ordering Information: Substitute the style number for the asterisk (*). Example: CTP4553, Style 1, 56uH. Rated Current Amp. RMS I (amp.) @ Lsat. 10% I (amp.) @ Lsat. 25% Part No. Ind. CTP4553 - (uH) DCR Ohms * 01 * 02 * 03 * 04 3.3 3.9 4.7 5.6 0.006 0.007 0.007 0.008 11.7 11.2 10.7 10.3 13.5 12.5 11.3 10.4 22.6 20.8 18.9 17.3 * 05 * 06 * 07 * 08 6.8 8.2 10 12 0.009 0.010 0.011 0.012 9.8 9.4 9.0 8.6 9.4 8.6 7.8 7.1 * 09 * 10 * 11 * 12 15 18 22 27 0.013 0.014 0.016 0.017 8.1 7.8 7.4 7.0 * 13 * 14 * 15 * 16 33 39 47 56 0.019 0.021 0.023 0.025 6.7 6.4 6.1 5.9 I (amp.) @ Lsat. 50% Rated Current Amp. RMS I (amp.) @ Lsat. 10% I (amp.) @ Lsat. 25% 0.027 0.030 0.033 0.046 5.6 5.4 5.1 4.3 3.0 2.7 2.5 2.2 5.0 4.5 4.1 3.7 8.3 7.5 6.8 6.2 150 180 220 270 0.064 0.071 0.098 0.137 3.7 3.5 3.0 2.5 2.0 1.8 1.7 1.5 3.3 3.1 2.8 2.5 5.6 5.1 4.6 4.2 330 390 470 560 0.151 0.164 0.180 0.248 2.4 2.3 2.2 1.9 1.4 1.2 1.1 1.0 2.3 2.1 1.9 1.7 3.8 3.5 3.2 2.9 Part No. Ind. CTP4553 - (uH) DCR Ohms 37.6 34.6 31.5 28.9 * 17 * 18 * 19 * 20 68 82 100 120 15.7 14.3 13.0 11.8 26.2 23.9 21.6 19.7 * 21 * 22 * 23 * 24 6.4 5.8 5.2 4.7 10.6 9.7 8.7 7.9 17.6 16.1 14.6 13.1 * 25 * 26 * 27 * 28 4.3 3.9 3.6 3.3 7.1 6.6 6.0 5.5 11.9 10.9 10.0 9.1 An ISO 9001 Registered Company Order: CTP4553 - 116 229 Colonnade Road, Nepean, Ontario, Canada K2E 7K3 Tel: (613) 226-1626 Fax: (613) 226-7124 www.filtran.com 33-2 I (amp.) @ Lsat. 50%