The Tektronix A6312 is a 100 MHz AC/DC current probe engineered for simultaneous measurement of AC and DC currents in demanding test environments. Its split-core design enables non-invasive connection to live conductors without circuit interruption, making it ideal for power supply characterization, motor control analysis, and inverter testing. The probe connects to AM503-series current probe amplifiers, delivering bandwidth to 100 MHz (80 MHz with AM503A) and supporting continuous currents to 20 A with peak pulse ratings of 50 A. A bucking current circuit eliminates core saturation, ensuring measurement integrity across the full bandwidth.
Technical Specifications
• Bandwidth: DC to 100 MHz (80 MHz with AM503A amplifier)
• Maximum DC + Peak AC Current: 20 A continuous
• Maximum Peak Pulse Current: 50 A
• Ampere-Second Product: 100 × 10⁻⁶ A·s (defines maximum pulse width before core saturation)
• Sensitivity: Minimum 1 mA/div; range 10 mA/div to 20 A/div (amplifier-dependent)
• DC Accuracy: ±3% (±1.5% typical)
• Maximum Conductor Diameter: 5 mm
• Maximum Barewire Voltage: 300 V (Category I)
• Insertion Impedance: 0.1 Ω @ 1 MHz, 0.2 Ω @ 50 MHz, 1.0 Ω @ 100 MHz
• Propagation Delay: 17 ns
• Risetime: ≤3.5 ns
• Cable Length: 2 m
• Weight: 0.25 kg
• Output Connector: BNC
– Key Features
• Split-core construction for non-invasive current path measurement
• Simultaneous AC and DC current acquisition
• Bucking current compensation eliminates core saturation effects
• Low insertion impedance maintains circuit integrity
• Fast risetime (≤3.5 ns) captures transient current events
– Typical Applications
• Power supply design and characterization
• Motor control circuit analysis
• Inverter and converter testing
• Transient current profiling
– Compatibility & Integration
The A6312 integrates with AM503, AM503A, AM503B, and AM5030 current probe amplifiers. Not compatible with the 11A16 2-CH Current Probe Amplifier. Measurement instrument bandwidth must not exceed 500 MHz. UL, CSA, and CE certified.
