OWCT20AS series

THT 20A Current Sense

Our Current Sense transformer is well-suited for use in power electronics, energy management systems, and industrial applications where precise current measurement, high-frequency operation, and reliable insulation are critical factors for optimal performance and safety.


  • Ferrite core
  • Current range: 20A
  • Turns optional: 50ts, 100ts, 200ts
  • Accuracy class: Defined in IEC61869-2, part 2, class optional 1.0
  • Frequency: 20kHz to 200kHz
  • Operation temp: -40°C to 130°C
  • Hi-pot 4000Vrms for 60” and dielectric resistance over 1Gohms at 500Vdc
  • Impulse voltage 1.2/5us 5000V optional


  • Epoxy encapsulated
  • PBT resin UL flame retardant rate 94-V0
  • RoHS & REACH compliant
  • Excellent quality competitive price


  • Designed for switching power supply applications
  • Supervising the current in circuit