1. Summary

As the development of modern electronics, more and more people have applied SiC / GaN power component in different specific field. Engineers will always need to measure the power circuit with above hundreds kHz of frequency and tens ampere of current. The traditional high frequency current probe (such as the HCP8000 series) containing iron core and shielding layer will suffer large damage and heating under high frequency current (Please refer to the current frequency derating curve from the HCP8000 series instruction manual.) The loss of expensive probe had become common result of testing these circuits. Coaxial Shunt is pure resistor structure and can remain low loss even under high frequency current (DC-120MHz), making it a very good choice for your high frequency current testing.