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Tektronix TCPA300 Current Probe Amplifier

MSRP: $2,470.00
Price: $2,346.50
You Save: $123.50 (5 %)
Item Number: TCPA300
Manufacturer: Tektronix
Manufacturer Part No: TCPA300

AC/DC Current Measurement Systems

TCPA300 • TCP312 • TCP305 • TCP303 • TCPA400 • TCP404XL

Features & Benefits

  • AC/DC Measurement Capabilities
  • DC – 100 MHz, Current Probe Amplifier (TCPA300) uses:
    • DC – 100 MHz, 30 A DC (TCP312)
    • DC – 50 MHz, 50 A DC (TCP305)
    • DC – 15 MHz, 150 A DC (TCP303)
  • DC – 50 MHz, Current Probe Amplifier (TCPA400) Uses:
    • DC – 2 MHz, 750*1 A DC (TCP404XL) (500 A DC Continuous)
  • Automatic Scaling and Units*2 – Oscilloscope On-screen Readout of Magnitude and Amps reduces Measurement Errors with No More Hand Calculations
  • AC/DC Input Coupling
  • Low Insertion Impedance reduces Device Under Test Loading
  • Split-core Construction allows Easy Circuit Connection
  • Status Indicators provide Visual Operating Status and Notification of Potential Error Conditions – Degauss, Probe Open, Overload, Not Terminated into 50 Ω, Noncompatible Probe Type
  • Lower DC Drift and Noise allows Improved Low-level Current Measurements
  • Certified for use in U.S., Canada, and Europe. Complies with applicable IEC Standards.


  • Development and Analysis Solutions for Designers, Installers, and Service Personnel in Telecomm, Data Comm, Computer, and Semiconductor Power Electronics Environments for:
    • Power Supplies (Switching and Linear)
    • Semiconductor Devices (SCRs, IGBTs, MOSFETs, CMOS, BJTs)
    • Power Inverters/Converters
    • Electronic Ballasts
    • Industrial/Consumer Electronics
    • Mobile Communications (Phone, Satellite, Relay Stations)
    • Motor Drives
    • Transportation Systems (Electronic Vehicles, Electric Trains, Locomotives, Avionics)

Increased Performance and Simplicity

The TCP300 and TCP400 Series AC/DC current measurement family is a highly advanced current measurement system for today's current measurement needs. When connected to Tektronix oscilloscopes with TEKPROBE Level II, TekConnect (w/ TCA-BNC), or TekVPI (w/ TPA-BNC) interfaces, current measurements and calculations are simple and easy.

*1 Derated with duty cycle.

*2 Requires a TDS TEKPROBE oscilloscope or a TekConnect oscilloscope with TCA-BNC.

Meets Today's AC/DC Current Measurement Applications

The TCPA300 amplifier, when used with TCP312, TCP305, or TCP303 probes, provides a wide range of current measurement capability and spans the gap between low-level milliamp measurements to very high current levels. These three probes provide current measurement capabilities of 30 A, 50 A, and 150 A DC continuous. For even higher current levels, the TCPA400 amplifier with the TCP404XL current probe measures 500 A DC continuous and 750 A DC continuous, derated with duty cycle.

Higher frequency performance is available with the TCP312 w/TCPA300 providing ≥100 MHz bandwidth and a maximum current of 30 A DC.

Measurement Errors and Manual Calculations are Now a Thing of the Past

With this new series of current measurement tools, automatic control and on-screen scaling and units is provided for users of Tektronix TDS3000, TDS500, TDS600, TDS700, TDS5000, TDS6000, and TDS7000B Series oscilloscope systems (the DPO3000, DPO4000, and DPO7000 Series oscilloscopes, the TPA-BNC adapter is required).

The TCP300/TCP400 current measurement systems seamlessly integrate with your TDS Series oscilloscope.

Even non-TEKPROBE systems can use the TCPA300/400 Series to make proper current measurements by simply multiplying the measured output voltage on the oscilloscope by the TCPA300/400 Series range setting.

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