Keysight / Agilent / HP N2890A 500 MHz Passive Probe

The Keysight N2890A is a 500 MHz passive voltage probe engineered for high-bandwidth signal acquisition across laboratory and field test environments. This 10:1 attenuation probe delivers 10 MΩ input resistance and 12 pF input capacitance, making it suitable for oscilloscopes with 1 MΩ input impedance and standard BNC connectors. The probe handles 200 V CAT II steady-state and 2500 V transient overvoltage, with a 1.5 meter lead length and replaceable sprung hook tip for versatile probing configurations.

Technical Specifications

Bandwidth: 500 MHz

Attenuation Ratio: 10:1

Input Resistance: 10 MΩ ± 2% (at 1 MΩ oscilloscope input)

Input Capacitance: 12 pF typical (at 1 MΩ oscilloscope input)

Compensation Range: 10 pF to 35 pF

Maximum Input Voltage: 200 V CAT II, 300 V RMS CAT II, 2500 V transient overvoltage

Lead Wire Length: 1.5 meters

Connector: Standard BNC, compatible with 1 MΩ oscilloscope inputs

Operating Temperature: 0 °C to 50 °C

Storage Temperature: -30 °C to 75 °C

Operating Humidity: 5% to 95% RH at 30 °C

Key Features

Replaceable sprung hook tip for rapid connection changes

Integrated ground lead with spring clip for secure grounding

Flexible, shielded coaxial cable minimizes interference and noise pickup

Ruggedized housing withstands typical industrial and laboratory handling

Series input resistance of 9.09 MΩ when connected to 1 MΩ oscilloscope input

Precise 10:1 attenuation ratio ensures accurate voltage readings

Typical Applications

Digital signal analysis

Power supply testing

Embedded system debugging

General circuit verification

Compatibility & Integration Compatible with all oscilloscopes featuring 1 MΩ input impedance and BNC connectors, including Keysight, Agilent, and Hewlett-Packard instruments, plus third-party oscilloscopes meeting standard BNC interface specifications.