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Tektronix TCPA300

50 MHz, AC/DC Current Probe

Brand: Tektronix
Model Number: TCPA300
Our Model No: TCPA300
Condition: NEW
PDF Document Icon Data Sheet (865 KB)


Product Features:

  • AC/DC Measurement Capabilities
  • DC – 50 MHz
  • 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 Ohm, 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 Tektronix TCPA300 AC/DC Current Probe, DC to 15 MHz is a highly advanced current measurement system for today's current measurement needs. The split-core probes incorporate both transformer and Hall-effect technology to provide broad bandwidth measurement capabilities from DC up to 100 MHz at current levels as low as 1 milliamp to thousands of amps (when used with CT4 current transformer). 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.

Additional measurement power is available with add-on software such as the TDSPWR2 power measurements package. With all this measurement power, current measurements have never been easier.

Meets today's AC/DC current measurement applications

The TCPA300 amplifier, when used with TCP303, TCP305, or TCP312 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 TCPA300 Current Measurement Systems seamlessly integrate with your TDS series oscilloscope and the TDSPWR2 software package to easily make those time-consuming power measurements and calculations for you.

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

* Requires a TDS TEKPROBE Oscilloscope or a TekConnect Oscilloscope with TCA-BNC

  • 1 - AC/DC Current Probe Amplifier
  • 1 - Instruction/Service Manual
  • 1 - TEKPROBE Interface Cable
  • 1 - Male to Male BNC cable (50 Ω)
  • 1 - 50 Ω feed-through termination
  • 1 - Certificate of Traceable Calibration
Model Description Buy Now Price
016192300 Tektronix 016-1923-00 Cover, Small Probe Protective; (for TCP305, TCP312, A6302, A6302XL, A6312, TCP202) Please Call
016192400 Tektronix 016-1924-00 Cover, Large Probe Protective; (for TCP303, TCP404XL, A6303, A6303XL, A6304XL) Please Call
016192200 Tektronix 016-1922-00 Case, Transit; Current Measurement Systems Please Call
011004902 Tektronix 011-0049-02 50 Ω Feed Through Termination Please Call
012011700 Tektronix 012-0117-00 50 Ω BNC To BNC Coaxial Cable Please Call
012160500 Tektronix 012-1605-00 TEKPROBE Interface Cable, TCPA300 or TCPA400 Amplifier to TDS series oscilloscopes Please Call
174476500 Tektronix 174-4765-00 TCPA300/TCPA400 Amplifier Calibration Adapter Please Call
067147800 Tektronix 067147800, Power Deskew Fixture Discontinued Discontinued
TDSPWR2 Tektronix TDSPWR2 - Power Measurement and Analysis Software for TDS5000 and TDS7000 Series Oscilloscopes; To order when purchasing oscilloscope use models: TDS5052PW2, TDS5054PW2, TDS7054PW2,TDS7104PW2. To order as an upgrade use: TDS5UP PW2, TDS7UP PW2 Please Call
Model Description Buy Now Price
SILV400 Tektronix SILV400 +5-Years Warranty Extension for DPO/MSO3K, TDS3K, THS3K, and Others Add to Cart


Calibration & Data Reports
Model Description Buy Now Price
TCPA300C3 Tektronix TCPA300C3 Calibration Service 3 Yrs. Provides Traceable Or Functional Verification Events Whichever Are Applicable To The Product. Cals Are At Tektronix Recommended Interval During The Coverage Period. Cal Coverage Includes The Manufacturers Cal + 2 Years Add to Cart


TCPA300C5 Tektronix TCPA300C5 Calibration Service 5 Yrs. Provides Traceable Or Functional Verification Events Whichever Are Applicable To The Product. Cals Are At Tektronix Recommended Interval During The Coverage Period. Cal Coverage Includes The Manufacturers Cal + 4 Years Add to Cart


TCPA300D1 Tektronix TCPA300D1 Cal Data Report; Add to Cart


TCPA300D3 Tektronix TCPA300D3 Test Data; On Delivery And W/Further Cals; Must Order W/C3 Add to Cart


TCPA300D5 Tektronix TCPA300D5 Test Data; On Delivery And W/Further Cals; Must Order W/C5 Add to Cart


Repair Services
Model Description Buy Now Price
TCPA300R3 Tektronix TCPA300R3 Repair Warranty; Extended To Cover 3 Years (Must be purchased with Unit) Add to Cart


TCPA300-R3DW Tektronix TCPA300-R3DW Repair Service Coverage 3 Years (Includes Product Warranty Period) 3 Year Period Starts At Time Of Customer Instrument Purchase Add to Cart


TCPA300R5 Tektronix TCPA300R5 Repair Warranty; Extended To Cover 5 Years (Must be purchased with Unit) Add to Cart


TCPA300-R5DW Tektronix TCPA300-R5DW Repair Service Coverage 5 Years (Includes Product Warranty Period) 5 Year Period Starts At Time Of Customer Instrument Purchase Add to Cart


Data Sheet: PDF Document Icon (865 KB)
Oscilloscope Accessories Selection Guide: PDF Document Icon (1.3 MB)
ABCs of Probes: PDF Document Icon (1.1 MB)
Oscilloscope Probes Factsheet: PDF Document Icon (180 KB)
Current Probes Factsheet: PDF Document Icon (700 KB)
Silver Care Packages: PDF Document Icon (261 KB)
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