The Tektronix P6339A 500 MHz Buffered Passive Probe was designed exclusively for the TDS794D and TDS694C instruments that have a fixed 50 Ω input impedance and a TekProbe interface.

Tektronix P6339A
500 MHz passive probe
P6339A probe

Compatible with 50 Ω scope inputs

Produced from (?) to (?)


It is in essence an oscilloscope front-end in a probe package – attenuation, coupling, AC/DC coupling, offset and bandwidth limit are controlled by the oscilloscope. For probe adjustment procedures, attenuation is set by an internal DIP switch.

Key Specifications

Bandwidth DC to 500 MHz (−3 dB), opt. 20  MHz limit
Rise time 1.4 ns at 10 mV/div, 875 ps at 20 mV/div, 700 ps at 50 mV to 5 V/div, 870 ps at 10 V/div
Input Impedance 10 MΩ // 8 pF
Max. input 420 VRMS / 600 V DC + peak AC (derate above 2.5 MHz)