The Teledyne LeCroy T3RC0300-UM is a Rogowski coil AC current probe engineered for non-invasive current measurement up to 300 A across a broad bandwidth of 9.2 Hz to 30 MHz. The flexible coil design enables placement around conductors in confined spaces without circuit modification, making it ideal for power electronics characterization, motor drive analysis, and inverter testing. With 20 mV/A sensitivity, ±0.05% linearity, and near-zero insertion impedance, the probe delivers accurate waveform capture while imposing minimal loading on the circuit under test.
Technical Specifications
Electrical Performance
• Maximum current measurement: 300 A peak
• Minimum resolvable current: 20 mA
• Frequency response: 9.2 Hz to 30 MHz
• Sensitivity: 20 mV/A
• Linearity: ±0.05% of reading
• Calibration accuracy: ±0.2% (conductor centered in loop)
• Positional accuracy variation: ±2% with conductor position shift
• Maximum output noise: 2.5 mV rms
• Voltage insulation rating: 1.2 kV peak
• Output load requirement: ≥100 kΩ for rated accuracy; 1 MΩ recommended on oscilloscopes
• 50 Ω load operation: Sensitivity halved, peak output ±2 V
• Insertion impedance: Near zero
• Insertion load: Few pH
Physical Characteristics
• Coil circumference: 80 mm
• Coil thickness: 1.7 mm
• Coil-to-electronics cable: 1 m
• Output cable: 0.5 m BNC-to-BNC, 50 Ω
• Coil operating temperature: −40 °C to +125 °C
• Electronics operating temperature: 0 °C to +40 °C
– Key Features
• Flexible coil construction for placement in congested board layouts and around component leads
• Low circuit loading through minimal insertion impedance and load
• Non-invasive measurement without circuit modification
• Dual power operation: AC adapter or battery powered for benchtop and field deployment
• BNC output compatible with standard oscilloscope inputs (1 MΩ impedance)
– Typical Applications
• Power electronics and converter testing
• Motor drive and inverter characterization
• Embedded power component analysis (inductors, capacitors)
• High-frequency AC current waveform capture
– Compatibility & Integration
The probe connects via BNC plug to oscilloscopes and test equipment with 1 MΩ input impedance. Supplied with batteries, AC power adapter, BNC cable, and storage box.
