Tektronix P5205 High Voltage Differential Probe

Tektronix P5205 High Voltage Differential Probe
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Tektronix Test Equipment P5205
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The P5205 High Voltage Differential Probe probe shown in Figure 1 provides a safe means of measuring circuits with floating high voltages. The probe outputs a low-voltage, ground-referenced signal for display on instruments with the TEKPROBE interface (or any oscilloscope or other measurement instrument when used with the Tektronix 1103 TEKPROBE power supply).

To protect you from RF and high voltage, the case of the probe is nonconductive, internally shielded, and isolated. The internal shield connects to earth ground through the output lead. The case of the probe and control buttons are isolated and double insulated. This protection extends up to the full input rating of the probe.

The P5205 probe allows clear and accurate measurements of high-speed transitions and provides excellent rejection of commonmode signals. Both inputs have high impedance and low capacitance. Because of these features, the probe can safely measure the fast voltage transients in switching power devices without damaging them. Other applications for the P5205 probe include testing high-voltage motor control circuits and line-connected circuits in switch-mode power supplies.


Bandwidth (-3 dB)

100 MHz

Differential Mode Voltage (RMS or DC)
 (between positive and negative input leads)

1000 V CAT II

Differential Mode Voltage (Peak)*1 
(between positive and negative input leads)

1300 V

Common Mode Voltage (RMS or DC + Pk AC) 
(between positive lead and ground or negative lead and ground)

1000 V CAT II


Attenuation (switchable)


CMRR @ 60 Hz/1 MHz (typical)

80 dB/50 dB

Input R (each input)

4 MΩ

Input C (each input)

7 pF

Power Source

TEKPROBE Power Supply

Safety (all)


Compatible Products

TDS400/500/600/700/ TDS3000B/5000B/6000B*2/7000B*2/ CSA7000B*2 and 11000 Series