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Common mode choke with tube, UL/CE approved


Key Specifications/Special Features:

  • Description:

    • PFC chokes are made from the iron powder core with either one or two coils

    • As small magnetic leakage, low wastage and low profile, high power factor correction, they are widely applied in electronic ballast or other switch power supply

    • Active PFC offers better THD and is significantly smaller and lighter than a passive PFC circuit

    • To reduce the size and cost of passive filter elements, an active PFC operates at a higher switching frequency than the 50/60Hz line frequency

  • Active PFC functions includes:

    • Active wave shaping of the input current

    • Filtering of the high frequency switching

    • Feedback sensing of the source current for waveform control

    • Feedback control to regulate output voltage

    • Buck, boost, flyback and other converter topologies are used in active PFC circuits

  • Key specifications/special features:

    • Selection of materials: amorphous magnetic, nano crystalline ring, kool toroid

    • High current, horizontal or vertical mount

    • High saturation flux density

    • High power factor correction

    • Low profile and low weight

    • Less flux leakage and beat

    • Low radiation and core loss

  • Precise inductance:

    • Operating temperature: -55 to 105°C

    • Power: 200, 250, 300 and 500W

    • Voltage: 100V/230 50Hz

    • Inductance range: 1 to 1000uH

    • PF value: greater than 98%

    • Tested at 100kHz, 0.1Vrms inductance of uH 10%

    • DC current at which the inductance drops 10% (type) from its value without current



  • Excellent utilization of electricity and good for environment protection

  • Customized specifications are accepted

  • Applications:

    • Frequency power

    • UPS

    • EMI/RFI filters

    • Switching power output and smoothing circuits

    • Used as choke coil for high frequency SMPs

    • Countermeasure against spike ripples

    • DC/DC converters

    • IP and OP devices

    • Notebook computer

    • Air conditioning

    • Digital TV

    • Battery power equipment

    • Power supply of all types of household appliances

    • Switching power supplies


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