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Current Probes

Current probes usually serve as a transducer by converting current to voltage. They measure common mode antenna currents that flow on cables or wires. When selecting a current probe, it is important to consider the required frequency range for the test, the size of the harness to be measured, and the probe's sensitivity to measuring signals at the limit level. 

Current probes work by placing a conductor that carries the current to the sensing window of the probe and then testing the probe's output voltage with the RF detector. The calibration factor of the current probe is called a transfer impedance curve and is given in W or dB(W). Each probe has a frequency range that is found in the impedance curve. 

Current probes are convenient for establishing EMC compliance before beginning a test or while preparing for testing because a defective filter or bonded cable could cause radiated emissions failure, wasting time and money.

Avalon Test Equipment carries a variety of current probes from top manufacturers (Keysight, LeCroy, and more) to meet testing requirements.

Rent or purchase from Avalon and Test With Confidence®.

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Teledyne LeCroy ADP305 High-Voltage Differential Probe

1400V, 100MHz is a high-voltage active differential probe that is safe and easy-to-use ideally suited for measuring power electronics. The ADP305 is designed for measuring the high-speed floating voltages found in high-speed power electronics.

Teledyne LeCroy AP015 Current Probe

30A, 50MHz current probe can measure continuous current of 30Arms and peak pulses of up to 50A for durations up to 10 seconds.

Teledyne LeCroy CP030A High Sensitivity Current Probe

The Teledyne LeCroy CP030A Current Probe was designed with a small form factor for crowded boards. The small jaw can probe currents in tight spaces and still clamp onto conductors up to 5mm in diameter. Continuous currents of 30Arms and peak currents of 50A can be measured by the CP030, which also features a 50MHz bandwidth.

Teledyne LeCroy PPE2KV High-Voltage Probe

The PPE series of probes are suitable for a wide range of applications where high-voltage measurements must be made safely and accurately. There are five fixed-attenuation probes covering a range from 2 kV to 20 kV, and one switchable probe providing ÷10/÷100 attenuation for voltage inputs up to 1.2 kV. New technology which utilizes hybrid circuitry (and switch reading for probes with switchable gain/attenuation) minimizes ringing and overshoot to provide a precise response.

Teledyne LeCroy TPA10 ProBus Probe Adapter - QUADPAK

The TPA10 Tektronix TekProbe Probe Adapter permits connection of select Tektronix TekProbe interface level II probes to any ProBus-equipped Teledyne LeCroy oscilloscope.

Teledyne LeCroy TPA10 ProBus Probe Adapter

The TPA10 Tektronix TekProbe Probe Adapter permits connection of select Tektronix TekProbe interface level II probes to any ProBus-equipped Teledyne LeCroy oscilloscope.

Teledyne LeCroy ZD1000 Active Differential Oscilloscope Probe

The ZD1000 Active Differential Oscilloscope Probe; 1GHz, 1.0pF, 1MΩ

Teledyne LeCroy ZD500 Active Differential Oscilloscope Probe

Teledyne LeCroy ZD500 Active Differential Oscilloscope Probe; 500MHz, 1.0pF, 1MΩ

Teledyne LeCroy ZS2500 Active Differential Oscilloscope Probe

Teledyne LeCroy ZS2500 Active Differential Oscilloscope Probe; 2.5GHz, 0.9pF, 1MΩ

Teledyne Lecroy ZS4000 Active Differential Oscilloscope Probe

Teledyne LeCroy ZS4000 Active Differential Oscilloscope Probe; 4GHz, 0.6pF, 1MΩ

Tektronix TCPA300A Current Probe

DC - 100 MHz, Current Probe Amplifier

Tektronix AM503S Current Probe

Consists of an AM 503/A Current Probe Amplifier, an A6302 Current Probe, and a TM 502A Power Module.

Keysight N2781B Current Probe

10 MHz/150 Arms AC/DC

Keysight/Agilent/HP 10017A Scope Probe

Divider Probe, 9-14pF Compensates Oscilloscope Input

Tektronix TekVPI Interface Adapter

Adapts Existing TekProbe® Probe Types for Application with TekVPI™ Oscilloscopes

Tektronix TDP0500 High Voltage Differential Probe

1 GHz and 500 MHz probe bandwidth

Keysight E2697A High Impedance Adapter

Includes 500 MHz passive probe

Tektronix P6249 Active Probe

5X Small geometry active probe, 4GHz