PEM Rogowski coil 1.2 mm ultra-fine ultra-mini CWTUM-S high-frequency current probe 30 A-30KA double-pulse semiconductor device GaN/SiC test

CWTUM-S is a thinner version of PEM's original CWT UltraMini probe. The Rogowski coil has a cross-sectional diameter of only 1.2mm, without compromising operating temperature, high-frequency performance, or insulation voltage. This thin coil offers another solution for measuring current in tight spaces without disturbing the tested circuit.

The wideband AC current probe with BNC output connects to most types of oscilloscopes or data acquisition devices.

Main Features

• Wide operating temperature: -40°C to 125°C.

• High frequency (-3dB): 30MHz.

• Only loads the tested circuit by a few pH.

• Standard coil length (circumference) is 80mm.

• Coil insulation 1.2KV PK, 1.2mm cross-sectional diameter.

• Peak DI/DT capability up to 100KA/μs.

• Current rating from 30A PK to 30KA PK.

Applications

• Switching current waveforms in circuits: MOSFETs or IGBTs devices as small as TO-220, D2PAK, and other SMT power devices.

• Measuring power loss in semiconductor switch lines in power devices.

• Monitoring current in small inductors, capacitors, snubber circuits, etc.

• Measuring small AC currents in the presence of large DC currents (e.g., monitoring capacitor ripple).

• Development and diagnostics of power converters.

• Measuring high-frequency sine, pulse, or transient currents from power frequency to RF applications.