The Tektronix P6158 is a high-frequency passive probe designed for precision signal integrity measurements on modern digital and analog circuits. With 3 GHz bandwidth and 1.5 pF input capacitance, it delivers minimal circuit loading and faithful signal reproduction at elevated frequencies. The probe’s 20X attenuation factor integrates with TEKPROBE™-equipped oscilloscopes, providing automatic readout scaling. A compact 3.5 mm probe tip accommodates SureFoot® adapters for surface-mount device probing, while included short ground leads minimize signal path inductance. Maximum input rating of 22 VRMS supports a broad range of logic and analog signal measurements.
Technical Specifications
Electrical Performance
• Bandwidth (probe only): DC to 3 GHz (-3 dB)
• Rise time: <100 ps
• Attenuation: 20X (-26 dB) with ±3% accuracy
• Input capacitance: 1.5 pF
• Input resistance: 1 kΩ
• Output termination: 50 Ω
• Signal delay: 5 ns
• Maximum input voltage: 22 VRMS
Environmental
• Operating temperature: −15 °C to +55 °C
• High humidity operation: 55 °C @ 95–97% RH
• Low humidity operation: 30 °C @ 95–97% RH
Physical
• Probe tip style: Compact (3.5 mm)
• Output cable length: 1.2 m
– Key Features
• TEKPROBE™ interface enables automatic 20X scale factor correction in compatible Tektronix oscilloscopes
• Low input capacitance minimizes circuit perturbation in high-impedance nodes
• Comprehensive accessory kit: SureFoot® adapters (50 mil, 25 mil, 0.5 mm), multiple ground contact lengths, and probe tip circuits
• Short ground leads reduce inductive effects in signal path
• Compact probe head design facilitates access to densely populated boards
– Typical Applications
• High-speed device characterization and validation
• Time-domain reflectometry (TDR) impedance measurements
• ECL, CMOS, and mixed-signal logic circuit analysis
• Propagation delay measurement in digital systems
– Compatibility & Integration
Supported oscilloscope platforms include Tektronix TDS500, TDS600, TDS700, TDS5000, TDS6000, TDS7000 Series; TDS820, TDS8000, CSA8000; 11000 and 11800 Series plug-ins; and 11801C, CSA803C sampling systems.
