The Keysight E5406A is a 34-channel, single-ended soft touch probe designed for non-intrusive signal acquisition on logic analysis systems. This connectorless probe delivers high-speed digital signal capture with minimal loading while accommodating real-world board conditions. Micro spring-pin technology ensures reliable contact on uneven or contaminated surfaces, and the top-side retention module enables installation without rear-board access—critical for densely populated or multilayer assemblies.
Technical Specifications
• Channel Configuration: 34 total channels (32 single-ended data, 2 single-ended or differential clock)
• Equivalent Load Capacitance: 2.5 Gb/s
• Minimum Signal Amplitude: 250 mV peak-to-peak
– Key Features
• Connectorless design eliminates traditional board-mounted connectors, reducing probe footprint and simplifying layout
• Micro spring-pin contact technology tolerates surface variations and oxidation without requiring special plating or pad preparation
• Top-side retention module streamlines mechanical assembly and enables probing of components near board edges
• Ultra-low capacitive loading (< 0.7 pF) minimizes signal integrity impact
• Supports high-speed digital signal capture exceeding 2.5 Gb/s
– Typical Applications
• High-density digital board debug and signal validation
• Real-time acquisition of data and clock signals in multi-layer PCB designs
• Non-intrusive monitoring of lead-free and standard surface finishes
• In-circuit signal analysis where probe footprint constraints are critical
– Compatibility & Integration
The E5406A requires upfront integration of the Pro Series soft touch connectorless footprint into target board artwork. Compatible with logic analyzers featuring 90-pin cable connectors, including Keysight U4164A, U4154A/B, 16850A, 16962A, 16951B, 16950A/B, 16760A, and 16756A series systems. Also works with the E5386A Half-channel Adapter for use with the 16760A logic analyzer. Suitable for all lead-free and standard board surface finishes.
