The Tektronix P5100, P5120, P5122, and P6015A form a family of passive high-voltage probes for oscilloscope-based voltage measurement. A passive high-voltage probe attenuates a large input signal by a fixed factor so it falls within the input range of a scope channel, letting an engineer observe high-voltage waveforms safely on the instrument display. Within this family the P5100 is a low-input-capacitance high-voltage probe rated to 2.5 kV and designed for higher-frequency applications, the P5120 and P5122 are IsolatedChannel probes intended for use with the TPS2000 Series digital storage oscilloscopes, and the P6015A is a heavy-duty 20 kV probe for high-performance measurements of voltages above 2.5 kV.

These probes are aimed at high-voltage work in power electronics. The listed applications include power supply design, motor drive design, electronic ballast, power semiconductors, switch mode control, UPS systems, and power converters. The P5120 and P5122 specifically address applications where it is important to isolate the measurement from earth ground and to isolate the common voltage between channels; coupled with the TPS2000 Series digital storage oscilloscopes, they deliver both isolation of the measurement from earth ground and full isolation between channels.

ValueTronics stocks test and measurement equipment directly from its own 20,000 sq ft secure warehouse at 1675 Cambridge Drive in Elgin, Illinois. Every pre-owned unit is inspected and functionally verified in-house before it ships, while new units leave the facility factory-sealed exactly as received from the manufacturer.

Compare Other Models in This Series

The P5100, P5120, P5122, and P6015A are grouped on a single specification sheet as Tektronix passive high-voltage probes, sharing a common purpose — attenuating high-voltage signals for safe display on an oscilloscope — while differing in attenuation factor, bandwidth, voltage rating, and isolation capability.

Two of the models, the P5120 and P5122, carry the IsolatedChannel designation and are presented for use with the TPS2000 Series digital storage oscilloscopes, where they isolate the measurement from earth ground and isolate the common voltage between channels.

Each pre-owned probe in this family is listed on its own product page with condition-matched pricing, so the model number and price you see correspond to the exact unit and pre-owned condition you are ordering.

The P5100 is singled out as a low-input-capacitance high-voltage probe rated to 2.5 kV and designed for higher-frequency applications; it can be compensated to match plug-ins and oscilloscopes with nominal input capacitances of 7 to 30 pF, and a variety of screw-on accessories provide connection to the device under test.

The models differ across several axes shown in the comparison table. Attenuation is 100x on the P5100 and P5122, 20x on the P5120, and 1000x on the P6015A. Bandwidth is 250 MHz for the P5100, 200 MHz for both the P5120 and P5122, and 75 MHz for the P6015A. Maximum input voltage ranges from 2.5 kV (DC + Peak AC) on the P5100 to 20 kV on the P6015A, with the P5120 and P5122 rated 1000 VRMS CAT II.

Compensation ranges and float capability also vary: 7 to 30 pF on the P5100, 15 to 25 pF on the P5120, 10 to 22 pF on the P5122, and 7 to 49 pF on the P6015A. The P5120 is floatable up to 600 VRMS CAT II or 300 VRMS CAT III and the P5122 up to 600 VRMS CAT III, while the P5100 carries a 1000 V CAT III rating. Readout coding is provided on the P5100 and is available on the P6015A via Opt. 1R. Refer to the comparison table for the per-model values.

Additional differences in specifications beyond the few shown above are not listed here — see each model's full specifications below.

Accessories Supplied

• Cable markers set
• Crocodile clip
• Adjustment tool
• Hooktip (small)
• Hooktip (large)
• 18 in. ground lead
• 6 in. ground lead
• Instruction manual (070-8151-04)

Product Core & Specifications

Important: Note: Using the readout version with other than Tektronix digital scopes may result in an erroneous readout display.

Important: With the P6015A readout option, displayed voltage amplitude values will be the actual signal value rather than understated by a factor of 1,000.

Recommended pairing: the P5120 and P5122 IsolatedChannel probes are designed for use with the Tektronix TPS2000 Series digital storage oscilloscopes.

About this Pre-Owned unit

This pre-owned unit is inspected and functionally verified in-house before it ships and is backed by our pre-owned warranty. To confirm its exact condition, firmware revision, installed options, or included accessories for your application before ordering, contact our Test Architects.

• Warranty included
• Functional verification included
• Standard Calibration Upgrade Options: No Calibration Required, NIST Traceable, Z540.1 or ISO 17025 with Data, Z540.3 Guardbanding with Data.
• Note that unnecessary accessories may not be included (contact Test Architect to confirm).

ValueTronics supplies both new and used test and measurement equipment. New units ship factory-sealed, exactly as received from the manufacturer; every used unit is inspected and functionally verified in-house at our 20,000 sq ft secure facility in Elgin, Illinois before it ships. Our Test Architects can help you select the condition, calibration, and configuration that fit your application.

Please review the Manufacturer's Data Sheet to verify published specifications. Feedback on this webpage is always welcome — please reach out to your Test Architect at any time for questions or concerns. Thank you, we truly appreciate you being our customer.