API_newlayouts_single:APIcatalog_newlayouts 8/26/10 9:43 AM Page 81 er w Po HCTR HCT s or ct du In SERIES High Current Toroidal Inductors Physical Parameters: Package A B C D E F Max. Max. Max. HCT-37X 0.615 0.600 0.370 0.500 0.440 0.500 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 Actual Size (HCT-44X) Mechanical Configuration Units are surface mount, low profile, self-leaded devices Frequency Range 1kHz up to 1 MHz Operating Temperature Range –30°C to +130°C 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 25°C Ambient HCT-37x, 0.9 W 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. DC AMPS TO PRODUCE A MAXIMUM TEMPERATURE RISE FROM 25°C AMBIENT -371 -372 -373 -374 -441 -442 -443 -444 -501 -502 -503 -504 -681 -682 -683 -684 1.25 2.1 2.8 4.2 2.8 4.2 5.7 9.0 6.5 8.4 12.5 17.0 10.5 17.6 22.0 29.0 32 27 27 24 33 29 29 26 25 23 23 22 35 35 30 30 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 260 160 110 100 110 85 65 55 55 45 35 29 30 24 21 16 2.5 4.0 6.3 7.9 3.6 5.4 7.5 11.4 6.6 8.3 11.4 17.0 6.2 12.3 17.5 25.0 2.2 3.4 5.4 6.8 3.2 4.7 6.4 9.8 5.8 7.2 9.8 14.6 5.3 10.7 15.0 21.5 5.73 4.58 3.62 3.23 5.13 4.23 3.60 2.91 3.97 3.55 3.04 2.49 4.35 3.06 2.58 2.16 9.75 7.78 6.17 5.49 8.73 7.20 6.13 4.95 6.75 6.04 5.17 4.23 7.40 5.21 4.40 3.67 12.30 9.87 7.82 6.97 11.00 9.14 7.78 6.28 8.56 7.66 6.56 5.37 9.39 6.60 5.58 4.66 14.30 11.40 9.10 8.10 12.80 10.60 9.05 7.31 9.96 8.91 7.63 6.25 10.90 7.68 6.49 5.42 16.00 12.80 10.10 9.04 14.30 11.80 10.00 8.15 11.10 9.94 8.50 6.97 12.10 8.57 7.24 6.04 55 °C 45 °C 35 °C 25 °C 15 °C DA SH NU MB ER IN * DU (µ CT H) A ± 2 NC 5% E Q TY PI CA L L & Q FR T EQ ES T SR UEN F C TY (M Y ( PI Hz kH CA , z) DC L) R MA ES XI IST M A DC UM NC (m E Ω TY RES PI IS ) CA TA L NC (m E Ω) 5° C ELECTRICAL SPECIFICATIONS @ 25°C 17.40 13.90 11.00 9.83 15.60 12.80 10.90 8.87 12.00 10.80 9.25 7.58 13.20 9.32 7.87 6.57 *Complete part # must include series # PLUS the dash # For surface finish information, refer to www.delevanfinishes.com 270 Quaker Rd., East Aurora NY 14052 • Phone 716-652-3600 • Fax 716-652-4814 • E-mail: [email protected] • www.delevan.com 1/2009 API_newlayouts_single:APIcatalog_newlayouts 8/26/10 9:44 AM Page 82 er w Po HCTR HCT s or ct du In SERIES 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 fit each application. For frequencies ≤ 10 kHz (mW/cm3) Hz Core loss = 1.47 x 10–8 Gauss f 0.971 B 2.11 For frequencies ≥ 10 kHz (mW/cm3) Hz Core loss = 9.07 x 10–10 Gauss f 1.26 B 2.11 Bpk = Erms 108 4.44 Anf A: T37 = 0.064 cm2; T44 = 0.099 cm2; T50 = 0.112 cm2; T68 = 0.179 cm2 Data is representative of a DC current with less than 1% ripple and an AC waveform less than: 50 gauss on the HCT-37X, 25 gauss on the HCT-44X, 15 gauss on the HCT-50X and 10 gauss on the HCT-68X.The effect of AC or ripple flux can be significant in many DC inductor applications. When significantly greater AC flux density is present, it becomes necessary to consider its effect on both core loss and permeability (inductance). All data points, on the above graphs, that exceed the rated DC current specified for a 55°C rise from a 25°C 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: [email protected] • www.delevan.com 1/2009