Tektronix TCP202 AC/DC Current Probe

The Tektronix TCP202 is an AC/DC current probe that measures both alternating and direct currents across a DC to 50 MHz bandwidth. Its split-core design clamps around conductors without circuit interruption, enabling non-invasive current measurement in live systems. Hall Effect sensing delivers DC accuracy to ±3% (improvable to ±1% with compatible TDS oscilloscopes and optional calibrator), while handling peak pulse currents to 50 A and continuous AC+DC currents to 15 A. The probe connects directly to Tektronix oscilloscopes via the TEKPROBE™ BNC interface, which supplies power and communicates probe characteristics automatically. Low insertion impedance—0.002 Ω at 1 kHz and 0.1 Ω at 5 MHz—minimizes circuit loading. A 2.2 meter cable and compact form factor suit confined measurement points with conductors up to 3.8 mm diameter.

– Technical Specifications

• Bandwidth: DC to 50 MHz
• Maximum DC + Peak AC Current: 15 A
• Maximum Peak Pulse Current: 50 A
• DC Accuracy: ±3% typical; ±1% with TDS500/600/700 and calibrator (P/N 015-0672-50)
• Insertion Impedance: 0.002 Ω @ 1 kHz; 0.1 Ω @ 5 MHz
• Minimum Sensitivity: 10 mA/division
• Propagation Delay: 17 ns
• Maximum Conductor Diameter: 3.8 mm
• Cable Length: 2.2 meters
• Coupling: DC coupled
• Weight: 0.19 kg

– Key Features

• Split-core design for non-invasive circuit connection
• Hall Effect sensing element
• TEKPROBE™ BNC interface with automatic power and data handshake
• Optional 1103 TEKPROBE Power Supply for legacy oscilloscope models

– Typical Applications

• Motor drives and inverters
• Switching power supplies
• Disk drive electronics
• Electronic ballasts
• Avionics systems
• Power supply design and verification

– Compatibility & Integration

Recommended with all TDS3000C and TDS5000B Series oscilloscopes. Compatible with TDS400, TDS500, TDS600, and TDS700 Series; best accuracy on TDS500/600/700 models with the optional calibrator. When paired with non-Tektronix instruments or legacy models, oscilloscope bandwidth must be at least 200 MHz. The measurement instrument input requires a ground reference for proper operation.