The Keysight N2872A is a passive oscilloscope probe engineered for general-purpose signal acquisition across a DC to 350 MHz bandwidth. Delivering a 10:1 attenuation ratio, the probe presents 10 MΩ input resistance and 9.5 pF input capacitance when terminated into a 1 MΩ oscilloscope input, preserving signal integrity and minimizing circuit loading during measurements.
Technical Specifications
Electrical Performance
• Bandwidth: DC to 350 MHz
• Attenuation Ratio: 10:1
• Input Resistance: 10 MΩ (into 1 MΩ scope input)
• Input Capacitance: 9.5 pF
• Maximum Input Voltage: 400 V CAT I / 300 V CAT II
• Scope Compensation Range: 10–25 pF
• Adjustable Low Frequency (LF) compensation
Physical Specifications
• Probe Head Diameter: 2.5 mm
• Cable Length: 1.3 m
Environmental Operating Conditions
• Operating Temperature: 0 °C to +50 °C
• Storage Temperature: –40 °C to +70 °C
• Operating Humidity: 80% RH to 31 °C, decreasing linearly to 40% RH at 50 °C
• Operating Altitude: 2,000 m (6,561 ft)
• Pollution Degree: 2
– Key Features
The compact 2.5 mm probe head design accommodates measurements on high-density integrated circuits and surface-mount devices with fine-pitch leads. Automatic Probe ID readout on compatible oscilloscopes eliminates manual configuration overhead. Adjustable compensation enables optimization across the 10–25 pF scope input range, supporting precise frequency response matching.
– Typical Applications
The N2872A serves general-purpose analog and digital signal measurements in laboratory and field environments. Its 350 MHz bandwidth suits characterization of legacy and mid-range digital logic, embedded systems, and analog signal chains. The low input capacitance and high input resistance minimize loading effects on moderate-impedance circuits.
– Compatibility & Integration
The probe is fully compatible with Keysight InfiniiVision and Infiniium Series oscilloscopes equipped with 1 MΩ input termination. It is recommended for oscilloscope systems with bandwidth less than 350 MHz. The 1.3 m cable and included accessory suite—rigid and spring-loaded tips, IC caps for 0.5 mm to 1.27 mm pitch, ground blade, sprung hook, and trimmer tool—support flexible deployment across diverse component geometries.
