Toroidal Chokes for Class D Amplifiers CTCDTF Series From 4.7 µH to 56 µH www.ctparts.com CHARACTERISTICS Description: Toroidal Chokes for Class D amplifiers. Applications: Powered Loudspeakers, electronic motor drives, portable amps, PA systems & car amps. Testing: Inductance is tested at 10kHz, 10 gauss, 0Adc. Winding: Single layer wound for high self-resonant frequency. Core: 10 permeability Carbonyl Micrometals© Core. Packaging: Bulk Packaged. Additional Information: • DL of less than 10% a currents greater than 100A • Class-D Operation 250kHz - 500kHz • High Linearity Under Peak Bias Conditions • Extremely Low Loss Under Typical Class-D ripple Current conditions • Reduced THD Due to Highest Linearity • Custom values & horizontal mounted configurations available upon request. Note: Application should limit long term absolute temperature of component to be 75°C Max. Miscellaneous: RoHS Compliant. Samples available. See website for ordering information. Not Shown at Actual Size SPECIFICATIONS Part Number Closest Standard value µHy Nominal Initial Inductance (0 ADC) µHy (±7%) DC Resistance (ref., 20°C) W Long-Term r.m.s. current guideline Amperes r.m.s. Peak Current for 5% Inductance Drop Amperes peak Peak Current for 10% Inductance Drop Amperes Peak CTCDTF-09401 4.7 4.84 0.011 8.6 35.8 75.6 CTCDTF-09402 6.8 6.59 0.015 6.8 30.7 64.8 CTCDTF-09403 10.0 10.3 0.029 4.3 24.6 51.9 CTCDTF-09404 12.0 12.1 0.036 3.4 22.6 47.8 CTCDTF-09405 15.0 14.8 0.040 3.4 20.5 43.2 CTCDTF-09406 18.0 17.8 0.064 2.1 18.7 39.5 CTCDTF-09407 22.0 21.8 0.072 2.1 16.9 35.6 CTCDTF-10601 4.7 4.87 0.009 10.9 49.2 103.8 CTCDTF-10602 6.8 6.53 0.012 8.6 42.5 89.7 CTCDTF-10603 10.0 9.84 0.018 6.8 34.6 73.1 CTCDTF-10604 12.0 12.2 0.025 5.4 31.2 65.8 CTCDTF-10605 15.0 14.7 0.028 5.4 28.3 59.8 CTCDTF-10606 18.0 18.5 0.039 4.3 25.3 53.3 CTCDTF-10607 22.0 21.6 0.050 3.4 23.4 49.3 CTCDTF-13001 4.7 4.85 0.008 13.7 56.8 119.9 CTCDTF-13002 6.8 6.88 0.009 13.7 47.7 100.7 CTCDTF-13003 10.0 9.9 0.011 13.7 39.7 83.9 CTCDTF-13004 12.0 12.0 0.015 10.9 36.1 76.3 CTCDTF-13005 15.0 15.1 0.022 8.6 32.2 68.0 CTCDTF-13006 18.0 17.6 0.027 6.8 29.8 62.9 CTCDTF-13007 22.0 22.3 0.036 5.4 26.5 55.9 CTCDTF-15401 18.0 18.1 0.020 10.9 40.4 85.3 CTCDTF-15402 22.0 22.4 0.022 10.9 36.4 76.8 CTCDTF-15403 27.0 27.1 0.030 8.6 33.1 69.8 CTCDTF-15404 33.0 33.6 0.040 6.8 29.7 62.7 CTCDTF-15405 39.0 39.3 0.045 6.8 27.4 57.9 CTCDTF-15406 47.0 47.1 0.062 5.4 25.1 52.9 CTCDTF-15407 56.0 55.6 0.085 4.3 23.1 48.7 Manufacturer of Passive Components 800-684-5322 Inside US 949-453-1811 Outside US Copyright © 2009 by CT Magnetics, DBA Central Technologies. All rights reserved. CT Magnetics reserves the right to make improvements or change specifications without notice Core Loss (typ.) at 100 kHz, 140 Gauss Core Loss (typ.) at 500 kHz, 50 Gauss 41 mW 26 mW 57 mW 36 mW 110 mW 70 mW 204 mW 129 mW REV 05.07.09 Toroidal Chokes for Class D Amplifiers www.ctparts.com Physical dimensions Part Number Outside Diameter (maximum) Inches Width (maximum) Inches Lead Space Dimension Inches Lead Diameter Inches CTCDTF-09401 1.125 0.47 0.41 0.052 CTCDTF-09402 1.125 0.46 0.4 0.047 CTCDTF-09403 1.1 0.45 0.38 0.037 CTCDTF-09404 1.07 0.43 0.38 0.033 CTCDTF-09405 1.07 0.43 0.38 0.033 CTCDTF-09406 1.05 0.4 0.37 0.026 CTCDTF-09407 1.05 0.4 0.37 0.026 CTCDTF-10601 1.25 0.62 0.54 0.058 CTCDTF-10602 1.25 0.62 0.54 0.052 CTCDTF-10603 1.25 0.62 0.52 0.047 CTCDTF-10604 1.22 0.6 0.52 0.042 CTCDTF-10605 1.22 0.6 0.52 0.042 CTCDTF-10606 1.21 0.59 0.52 0.037 CTCDTF-10607 1.21 0.58 0.52 0.033 CTCDTF-13001 1.52 0.66 0.59 0.066 CTCDTF-13002 1.52 0.66 0.59 0.066 CTCDTF-13003 1.52 0.66 0.59 0.066 CTCDTF-13004 1.5 0.63 0.59 0.058 CTCDTF-13005 1.5 0.63 0.57 0.052 CTCDTF-13006 1.49 0.62 0.56 0.047 CTCDTF-13007 1.48 0.62 0.56 0.042 CTCDTF-15401 1.79 0.79 0.69 0.058 CTCDTF-15402 1.79 0.79 0.69 0.058 CTCDTF-15403 1.78 0.78 0.69 0.052 CTCDTF-15404 1.77 0.75 0.67 0.047 CTCDTF-15405 1.77 0.75 0.67 0.047 CTCDTF-15406 1.75 0.74 0.67 0.042 CTCDTF-15407 1.73 0.73 0.66 0.037 Width Outside Dia. 0.375" from mounting plane Lead Dia. Lead Space Manufacturer of Passive Components 800-684-5322 Inside US 949-453-1811 Outside US Copyright © 2009 by CT Magnetics, DBA Central Technologies. All rights reserved. CT Magnetics reserves the right to make improvements or change specifications without notice REV 05.07.09