Power Inductors HCTR SERIES HCT High Current Toroidal Inductors Physical Parameters: Actual Size Package A B C D E F Max. Max. Max. (HCT-44X) HCT-44X 0.665 0.665 0.400 0.560 0.490 0.560 HCT-50X 0.740 0.740 0.400 0.630 0.560 0.630 HCT-68X 0.945 0.940 0.400 0.820 0.700 0.820 Above dimensions in inches and unless otherwise stated all tolerances are 0.010 Mechanical Conguration Units are surface mount, low prole, self-leaded devices Frequency Range 1kHz up to 1 MHz Operating Temperature Range 30C to +130C Leads Solder tinned Materials Meet UL94V-0 Optional Tolerances As low as 10% available on some values. Consult factory for details. Maximum Power Dissipation at 25C Ambient HCT-44x, 1.0 W HCT-50x, 1.1 W HCT-68x, 1.2 W Marking API part number. Example: HCT-504 API HCT-504 Packaging Bulk contact factory for tape & reel options. ELECTRICAL SPECIFICATIONS 25C DC AMPS TO PRODUCE A MAXIMUM TEMPERATURE RISE FROM 25C AMBIENT -441 2.8 33 100 110 3.6 3.2 5.13 8.73 11.00 12.80 14.30 15.60 -442 4.2 29 100 85 5.4 4.7 4.23 7.20 9.14 10.60 11.80 12.80 -443 5.7 29 100 65 7.5 6.4 3.60 6.13 7.78 9.05 10.00 10.90 -444 9.0 26 100 55 11.4 9.8 2.91 4.95 6.28 7.31 8.15 8.87 -501 6.5 25 100 55 6.6 5.8 3.97 6.75 8.56 9.96 11.10 12.00 -502 8.4 23 100 45 8.3 7.2 3.55 6.04 7.66 8.91 9.94 10.80 -503 12.5 23 100 35 11.4 9.8 3.04 5.17 6.56 7.63 8.50 9.25 -504 17.0 22 100 29 17.0 14.6 2.49 4.23 5.37 6.25 6.97 7.58 -681 10.5 35 100 30 6.2 5.3 4.35 7.40 9.39 10.90 12.10 13.20 -682 17.6 35 100 24 12.3 10.7 3.06 5.21 6.60 7.68 8.57 9.32 -683 22.0 30 100 21 17.5 15.0 2.58 4.40 5.58 6.49 7.24 7.87 -684 29.0 30 100 16 25.0 21.5 2.16 3.67 4.66 5.42 6.04 6.57 *Complete part must include series PLUS the dash . 270 Quaker Rd., East Aurora NY 14052 Phone 716-652-3600 Fax 716-652-4814 E-mail: apisales delevan com www.delevan.com 8/2021 DASH NUMBER* INDUCTANCE (H) 25% Q TYPICAL L & Q TEST FREQUENCY (kHz) SRF (MHz, TYPICAL) DC RESISTANCE MAXIMUM (m ) DC RESISTANCE TYPICAL (m ) 5C 15C 25C 35C 45C 55CPower Inductors HCTR SERIES HCT High Current Toroidal Inductors This information is intended to be used in assisting the designer in part selection. Each application may contain other variables which must be considered in part selection, such as temperature effects, waveform distortion, etc. API Delevan Sales/Engineering is available to provide information as needed to t each application. Data is representative of a DC current with less than 1% ripple and an AC waveform less than: 25 gauss on the HCT- For frequencies 10 kHz 44X, 15 gauss on the 3 (mW/cm ) Hz Gauss HCT-50X and 10 gauss 8 0.971 2.11 Core loss = 1.47 x 10 f B on the HCT-68X.The effect of AC or ripple ux For frequencies 10 kHz can be signicant in 3 (mW/cm ) Hz Gauss many DC inductor 10 1.26 2.11 Core loss = 9.07 x 10 f B applications. When 8 Erms 10 signicantly greater AC Bpk = 4.44 Anf ux density is present, it becomes necessary to A: consider its effect on both 2 2 T37 = 0.064 cm T44 = 0.099 cm core loss and 2 2 T50 = 0.112 cm T68 = 0.179 cm permeability (inductance). All data points, on the above graphs, that exceed the rated DC current specied for a 55C rise from a 25C ambient are for design reference only and are not intended to imply continuous use at those DC current levels 270 Quaker Rd., East Aurora NY 14052 Phone 716-652-3600 Fax 716-652-4814 E-mail: apisales delevan com www.delevan.com 8/2021