Toroidal Chokes for Class D Amplifiers
www.ctparts.com
CTCDTF Series
From 4.7 µH to 56 µH
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 4.7 6.8 10.0 12.0 15.0 18.0 22.0 Nominal Initial Inductance (0 ADC) µHy (±7%) 4.84 6.59 10.3 12.1 14.8 17.8 21.8 DC Resistance (ref., 20°C) W 0.011 0.015 0.029 0.036 0.040 0.064 0.072 Long-Term r.m.s. current guideline Amperes r.m.s. 8.6 6.8 4.3 3.4 3.4 2.1 2.1 Peak Current for 5% Inductance Drop Amperes peak 35.8 30.7 24.6 22.6 20.5 18.7 16.9 Peak Current for 10% Inductance Drop Amperes Peak 75.6 64.8 51.9 47.8 43.2 39.5 35.6 41 mW 26 mW Core Loss (typ.) at 100 kHz, 140 Gauss Core Loss (typ.) at 500 kHz, 50 Gauss
CTCDTF-09401 CTCDTF-09402 CTCDTF-09403 CTCDTF-09404 CTCDTF-09405 CTCDTF-09406 CTCDTF-09407
CTCDTF-10601 CTCDTF-10602 CTCDTF-10603 CTCDTF-10604 CTCDTF-10605 CTCDTF-10606 CTCDTF-10607
4.7 6.8 10.0 12.0 15.0 18.0 22.0
4.87 6.53 9.84 12.2 14.7 18.5 21.6
0.009 0.012 0.018 0.025 0.028 0.039 0.050
10.9 8.6 6.8 5.4 5.4 4.3 3.4
49.2 42.5 34.6 31.2 28.3 25.3 23.4
103.8 89.7 73.1 65.8 59.8 53.3 49.3 57 mW 36 mW
CTCDTF-13001 CTCDTF-13002 CTCDTF-13003 CTCDTF-13004 CTCDTF-13005 CTCDTF-13006 CTCDTF-13007
4.7 6.8 10.0 12.0 15.0 18.0 22.0
4.85 6.88 9.9 12.0 15.1 17.6 22.3
0.008 0.009 0.011 0.015 0.022 0.027 0.036
13.7 13.7 13.7 10.9 8.6 6.8 5.4
56.8 47.7 39.7 36.1 32.2 29.8 26.5
119.9 100.7 83.9 76.3 68.0 62.9 55.9 110 mW 70 mW
CTCDTF-15401 CTCDTF-15402 CTCDTF-15403 CTCDTF-15404 CTCDTF-15405 CTCDTF-15406 CTCDTF-15407
18.0 22.0 27.0 33.0 39.0 47.0 56.0
18.1 22.4 27.1 33.6 39.3 47.1 55.6
0.020 0.022 0.030 0.040 0.045 0.062 0.085
10.9 10.9 8.6 6.8 6.8 5.4 4.3
40.4 36.4 33.1 29.7 27.4 25.1 23.1
85.3 76.8 69.8 62.7 57.9 52.9 48.7 204 mW 129 mW
Copyright © 2009 by CT Magnetics, DBA Central Technologies. All rights reserved. CT Magnetics reserves the right to make improvements or change specifications without notice
Manufacturer of Passive Components 800-684-5322 Inside US 949-453-1811 Outside US
REV 05.07.09
Toroidal Chokes for Class D Amplifiers
PHySICAl dImENSIONS
Part Number Outside Diameter (maximum) Inches 1.125 1.125 1.1 1.07 1.07 1.05 1.05 Width (maximum) Inches 0.47 0.46 0.45 0.43 0.43 0.4 0.4 Lead Space Dimension Inches 0.41 0.4 0.38 0.38 0.38 0.37 0.37 Lead Diameter Inches 0.052 0.047 0.037 0.033 0.033 0.026 0.026
www.ctparts.com
CTCDTF-09401 CTCDTF-09402 CTCDTF-09403 CTCDTF-09404 CTCDTF-09405 CTCDTF-09406 CTCDTF-09407
CTCDTF-10601 CTCDTF-10602 CTCDTF-10603 CTCDTF-10604 CTCDTF-10605 CTCDTF-10606 CTCDTF-10607
1.25 1.25 1.25 1.22 1.22 1.21 1.21
0.62 0.62 0.62 0.6 0.6 0.59 0.58
0.54 0.54 0.52 0.52 0.52 0.52 0.52
0.058 0.052 0.047 0.042 0.042 0.037 0.033
CTCDTF-13001 CTCDTF-13002 CTCDTF-13003 CTCDTF-13004 CTCDTF-13005 CTCDTF-13006 CTCDTF-13007
1.52 1.52 1.52 1.5 1.5 1.49 1.48
0.66 0.66 0.66 0.63 0.63 0.62 0.62
0.59 0.59 0.59 0.59 0.57 0.56 0.56
0.066 0.066 0.066 0.058 0.052 0.047 0.042
CTCDTF-15401 CTCDTF-15402 CTCDTF-15403 CTCDTF-15404 CTCDTF-15405 CTCDTF-15406 CTCDTF-15407
1.79 1.79 1.78 1.77 1.77 1.75 1.73
0.79 0.79 0.78 0.75 0.75 0.74 0.73
0.69 0.69 0.69 0.67 0.67 0.67 0.66
0.058 0.058 0.052 0.047 0.047 0.042 0.037
Outside Dia.
Width
0.375" from mounting plane
Lead Dia.
Lead Space
Copyright © 2009 by CT Magnetics, DBA Central Technologies. All rights reserved. CT Magnetics reserves the right to make improvements or change specifications without notice
Manufacturer of Passive Components 800-684-5322 Inside US 949-453-1811 Outside US
REV 05.07.09
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