Tektronix P6139B Passive Probe

500 MHz Bandwidth

Passive voltage probe that ships standard with most oscilloscopes and provides a low-cost, general-purpose probing solution. Tektronix has released a new class of passive probes that redefine performance.

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Tektronix P6139B Passive Probe Product Description

The P6139B and P5050B probes are high bandwidth, high impedance 10X passive voltage probes with 10 MΩ input resistance. These probes feature a small probe head and sharp tip that makes it easier to probe dense circuitry.

Key performance specifications

  • 500 MHz probe bandwidth
  • Large input impedance at the probe tip (10 MΩ, 8pF)
  • 10X attenuation factor
  • 300 v CAT II input voltage

Ease-of-use features

  • Compact probe head for probing small geometry circuit elements
  • Small probe body for enhanced visibility to the Device-Under-Test
  • Replaceable probe tip cartridges
  • Large accessory set for versatile connectivity


  • P6139B and P5050B feature the TekProbe interface for direct BNC connection for oscilloscopes with 1 MΩ inputs.
  • Integrated oscilloscope and probe measurement systems feature intelligent communication that automatically scales and adjusts units on the oscilloscope display.


  • Low power devices
  • Service
  • Manufacturing engineering
  • Test research and development

Tektronix P6139B Passive Probe Specifications

Model Attenuation Bandwidth Input Impedance Maximum Voltage
P6139B 10x 500 MHz 10 MΩ || 8 pF 300 Vrms CAT II

Tektronix P6139B Passive Probe Resources

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