Agilent/Keysight E5405B

The Keysight E5405B is a 17-channel differential connectorless probe engineered for direct signal access on PCBs without requiring a physical connector on the target board. Designed for engineers and laboratories performing advanced signal analysis and characterization, this probe delivers high-speed data capture with minimal electrical loading. The E5405B uses Keysight's Soft Touch Pro Series connectorless probing technology - an industry-standard footprint approach that reduces PCB real estate requirements in space-constrained applications.

Technical Specifications

• Channels: 17 total (configurable as 16 single-ended or differential data channels plus 1 single-ended or differential clock channel)


• Equivalent Load Capacitance: Less than 0.7 pF


• Maximum Data Rate: Greater than 2.5 Gb/s


• Minimum Signal Amplitude: 200 mV Vmax-Vmin


• Contact Technology: Micro spring-pin technology for reliable pad engagement on uneven or contaminated surfaces


• Retention Mechanism: Top-side retention module - no backside PCB access required

Key Features

• Connectorless probing eliminates discrete connector components on the target board


• Micro spring-pin contact ensures stable electrical connection across varied surface conditions


• Topside retention simplifies probe deployment and improves workflow efficiency


• Suitable for all board surfaces, including lead-free assemblies


• Low capacitive loading preserves signal integrity for high-speed measurements

Typical Applications Signal characterization on high-density PCBs, embedded system debugging, complex electronic subsystem analysis, and space-limited design environments where traditional connectorized probes introduce unacceptable footprint overhead.

Compatibility & Integration The E5405B connects to logic analyzers equipped with 90-pin cable connectors. Deployment requires upfront design integration of the Pro Series Soft Touch connectorless footprint into the target PCB.