TBCP3 17mm Fixed Aperture RF Current Monitoring Probes

The TBCP3-1000 is a fixed aperture RF current monitoring probe. It has a very flat response with a 3dB bandwidth of 1 GHz and is characterized and usable over the frequency range from 1 kHz to 1 GHz.

The aperture of the RF current monitoring probe is 17 mm. Its transfer impedance is close to 20 dB Ohm in the flat region and has a 3 dB bandwidth from 3 MHz to 1 GHz.

Tekbox supplies a calibration fixture corresponding with the TBCP3 series of fixed aperture current probes.


  • Characterized frequency range: 1 kHz to 1 GHz
  • Aperture diameter: 17 mm
  • Outside diameter: 52 mm
  • Height: 14 mm
  • Weight: 55 g
  • Connector type: SMA female
  • Transfer impedance: 20 dBΩ in the flat region, typ.
  • 3dB bandwidth: 3 MHz – 1 GHz, typ.
  • Max. primary current (DC – 400 Hz): 30 A
  • Max. primary current (RF): 4 A
  • Max. core temperature: 125 °C