The P6245 and P6243 are active FET probes built for TEKPROBE BNC oscilloscope interfaces. Both deliver high-speed signal acquisition with low circuit loading, presenting ≤1 pF of input capacitance and 1 MΩ of input resistance to the device under test. Their small, compact probe heads and versatile attachment accessories allow direct connection to the circuit, and because they draw power through the TEKPROBE BNC interface, no separate power supplies or cables are needed.

These probes are intended for high-speed digital systems design, component design and characterization, manufacturing engineering and test, and educational research. They provide direct, easy access to surface-mount devices and can measure CMOS, BiCMOS, ECL, GaAs, and TTL logic, making them suited to engineers probing fine-pitch SMD circuitry where passive probes would impose too much capacitive loading.

ValueTronics stocks and holds its own inventory in a 20,000 square foot secure warehouse at 1675 Cambridge Drive in Elgin, Illinois. Every pre-owned unit is inspected and functionally verified in-house against the original specifications before it ships, while new units ship factory-sealed exactly as received from the manufacturer.

Compare Other Models in This Series

The P6245 and P6243 are active FET probes for TEKPROBE BNC interfaces, sharing a common low-loading architecture — ≤1 pF input capacitance, 1 MΩ input resistance, 10X attenuation, and a low-mass head on a 1.3 m cable — while differing in probe-only bandwidth. Both draw their power from the TEKPROBE BNC interface, so neither requires external supplies or cables.

Across the series, the probes target the same problems: lower DUT loading, direct access to surface-mount devices as small as 0.5 mm pitch, and measurement of CMOS, BiCMOS, ECL, GaAs, and TTL logic. The model you choose is driven primarily by the bandwidth and rise-time your application requires.

Each model below is its own dedicated product page with condition-matched pricing. Select the pre-owned listing that matches the model and condition you need; the specifications shown apply to that specific model.

The P6245 is the higher-bandwidth member of the pair, rated at ≥1.5 GHz typical (probe only) with a rise-time of <250 ps and a 10 V DC offset range. It provides scope bandwidth at the probe tip for TDS500/600/700 oscilloscopes and supports high-speed acquisition on SMDs down to 0.5 mm pitch.

The two models differ chiefly in bandwidth and rise-time: the P6245 is ≥1.5 GHz (probe only) with a <250 ps rise-time, while the P6243 is 1 GHz (probe only) with a <350 ps rise-time. The P6245 lists a 10 V DC offset range, whereas the P6243 lists N/A for DC offset. The P6243 provides a 500 MHz system bandwidth when used with 500 MHz oscilloscopes and provides scope bandwidth at the probe tip for the TDS3000 Series up to 1 GHz.

Shared specifications — ≤1 pF input capacitance, 1 MΩ input resistance, 10X attenuation, ±8 V linear dynamic range, ±15 V maximum nondestructive input, 1.3 m cable, and 5.3 ns ±200 ps propagation delay — are identical between the models. Included accessory quantities also differ between the P6245 and P6243; 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

• Solderable Probe Tips, 10 each (Reorder 131-5638-xx, Pkg. of 10)
• 1 in. Ground Lead, 2 each (Reorder 196-3439-xx, Pkg. of 10)
• 6 in. Ground Lead, 1 each (Reorder 196-3436-xx)
• 3 in. Ground Lead, 1 each (Reorder 196-3437-xx)
• Y Lead Adapters, 1 each (Reorder 196-3463-xx)
• SMT KlipChip adapter, 2 each (Reorder 206-0364-xx)
• Color Coding Clips, 2 each 5 colors, 1 each (Reorder 016-1315-xx)
• Right Angle Square Pin Adapter, 1 each (Reorder 214-4227-xx)
• 100 Mil Square Pin Adapter, 1 each (Reorder 131-5777-xx)

Product Core & Specifications

Important: Some TDS6000 or TDS7000 oscilloscopes require a TCA-BNC adapter.

Important: No additional power supplies or cables are required when used with TEKPROBE BNC oscilloscopes.

Recommended pairing: use the SureFoot SF500 Series adapters — SF501 for 50 mil pitch, SF502 for 25 mil and 0.65 mm pitch, and SF503 for 0.5 mm pitch — for SMD probing.

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.