The Keysight N2876A is a 100:1 passive probe engineered for high-fidelity signal acquisition on densely populated circuit boards and fine-pitched components. With DC to 1.5 GHz bandwidth and a compact 2.5 mm probe head, it delivers accurate measurements on 50 Ω terminated oscilloscope inputs while maintaining minimal loading effects through 2.6 pF input capacitance and 5 kΩ input impedance.
Technical Specifications
• Bandwidth: DC to 1.5 GHz
• Attenuation Ratio: 100:1
• Input Impedance: 5 kΩ (50 Ω oscilloscope termination)
• Input Capacitance: 2.6 pF
• Maximum Input Voltage: 21 V CAT I
• Probe Head Diameter: 2.5 mm
• Cable Length: 1.3 m
– Key Features
• Spring-loaded and rigid probe tip options for versatile contact methods
• Five interchangeable IC caps (0.5 mm to 1.27 mm pitch) ensure precise lead contact on fine-geometry devices
• Insulating IC caps prevent adjacent-lead shorts during densely packed measurements
• Low-inductance ground connectivity via flat blade connector and self-adhesive copper pads
• Integrated ground spring and 15 cm ground lead for accessible grounding
• Requires oscilloscope input compensation for amplitude accuracy across the full bandwidth
– Typical Applications
Measuring 50 Ω transmission lines and low-impedance signal sources in high-speed digital and RF circuit characterization. Ideal for probing surface-mount devices, FPGA arrays, and multi-layer PCBs where probe placement demands minimal board disruption.
– Compatibility & Integration
Designed for Keysight InfiniiVision and Infiniium Series oscilloscopes equipped with 50 Ω input connectors. The included BNC adapter, protection cap, and color-coded identification rings support rapid probe identification and straightforward oscilloscope integration.
