RF Current Probe BCP-620

  • High Frequency Current Probe High Frequency Current Probe


Split Type Clamp-on monitoring current probe for measuring high-frequency common-mode currents with a usable frequency range of 10 KHz to 500 MHz.


  • 10 KHz to 500 MHz
  • Ideal for BCI testing; ISO 11452-4, MIL-STD-461 CS114
  • High Current Capability
  • Individually Calibrated

CAGE Code: 54656
Schedule B: 8529.10.9000

Product Details

The BCP-620 RF current probe is a toroidal transformer used to measure RF current without directly connecting to the electrical conductor or cable under test. The conductor passing through the aperture of the current probe acts as a single turn primary of the transformer. The secondary is designed for a 50 ohm system such as an EMI meter or spectrum analyzer.

This current probe can handle 60 amperes of pulse currents and 40 amperes of CW between the usable frequency range of 10 KHz to 500 MHz.

Transfer impedance is defined as the ratio of the voltage developed across 50 ohms divided by the current flowing in the primary winding. Since EMI meters are selective, RF volt meters reading directly in RF volts, current conversion is simplified using Ohms law. The transfer impedance of the current probe is divided into the voltage measured at the output of the probe to obtain current in the conductor or cable under test. In dB, the current (dBuA) is equal to the reciever reading (in dBuV) - the transfer impedance (dBΩ).

Current Probe Specifications

BCP-620 Current Probe
Frequency Range 10 KHz - 500 MHz
Transfer Impedance (dBohm) -29 to 17
Max Primary Current
(DC - 60 Hz)
200 Amps
Max Primary Current
(400 Hz)
200 Amps
Max Primary Current CW 40 Amps
Peak Pulse Current 60 Amps
Connector N-Type, Female
Physical Dimensions
Aperture: 1.25" (32 mm)
Weight: 1.2 lb.'s (550 grams)

Typical Current Probe Data

BCP-620 Current Probe

Additional Resources

BCP-620 Current Probe

Product Datasheet

Operation Manual

Current Probe Comparisons

A Basic Bulk Current Injection Test Method

Shipping Information:
Carton size: 13" x 10" x 5"
Shipping Weight: 3 lbs.
* These are approximate dimensions and will vary depending on other items ordered.

Recommended Accessories

BCP-620 Current Probe
Current Probe Fixture

CPF-630 - Current Probe Fixture

Injection Probe calibration fixtures are a part of the test equipment required by most of the Bulk current Injection Test Procedure Specifications. The Calibration Fixture allows the user to quickly and easily calibrate the injection probe prior to performing the compliance testing. It exceeds DO-160, Section 20 VSWR fixture requirements for stand-alone injection probe calibration fixture.


3 Meter N/N Cable

SAC-213 - 3 Meter N/N Cable

3 Meter RF cable with N(m) to N(m) connectors. Custom lengths can be made to suit your specifications.


Carrying case

TSC-BCP-1 - Carrying case

Rugged polyethylene case that includes a custom foam cutout for the current probes.