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PEM Rogowski coil 1.2 mm ultra-fine ultr PEM Catalog
PEM Rogowski coil 1.2 mm ultra-fine ultra-mini CWTUM-S/150 high-frequency current probe 30KA/30M
  • PEM Rogowski coil 1.2 mm ultra-fine ultra-mini CWTUM-S/150 high-frequency current probe 30KA/30M

PEM Rogowski coil 1.2 mm ultra-fine ultra-mini CWTUM-S/150 high-frequency current probe 30KA/30M

Brand: PEM

Origin: UK

Isolated Current Probe. Detailed specifications are available in the product datasheet.
Overview

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 can be connected to most types of oscilloscopes or data acquisition devices.




Main Features

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

  • High frequency (-3dB): 30MHz.

  • Loads the tested circuit with only a few pH.

  • Standard coil length (circumference): 80mm.

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

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

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




Applications

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

  • Measuring power loss in semiconductor switching of power devices.

  • Monitoring current in small inductors, capacitors, resonant 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 at power frequencies up to RF applications.


Specifications
Parameter Value
Peak Current 30000 A
High Frequency Bandwidth 30 MHz
Low Frequency Cut-off 1 Hz
Frequency Bandwidth 30 MHz
Peak di/dt 100 kA/µs
Droop Rate 1 %/ms
Sensitivity 0.2 mV/A
Noise 5 mV (p-p, peak-to-peak)
Coil Withstand Voltage 1.2 kV
Operating Temperature -40~+125 °C
Zero Adjustment No
Coil Diameter 1.2 mm
Coil Length 80 mm (up to 150 mm)
Cable Length 1.0 m
Expand PEM Rogowski coil 1.2 mm ultra-fine ultr

* Specifications are subject to change without notice.