Agilent/Keysight E2644A

The Agilent/Keysight E2644A is a 0.65 mm wedge probe adapter for surface-mount integrated circuits in Thin Quad Flat Packages (TQFP) and Quad Flat Packages (QFP) configurations. This 16-signal adapter eliminates the mechanical challenges and risk of accidental shorts inherent in traditional wire-soldering approaches to IC probing.

The adapter employs mechanically non-invasive contact technology, establishing two contact points per IC leg to ensure signal integrity without damaging component leads. Insertion is straightforward—the adapter seats securely without soldering, making it ideal for development, debugging, and in-circuit characterization workflows.

– Technical Specifications

• Adapter Type: Wedge Probe Adapter
• Pitch: 0.65 mm
• Signal Count: 16 signals
• Operating Voltage: Less than 40 V (DC + peak AC)
• Operating Current: 0.5 A maximum
• Contact Resistance: Less than 0.1 Ω
• Capacitance (between contacts): 4.3 pF at 1 MHz
• Self-Inductance: 37 nH at 1 MHz

– Key Features

• Dual contact points per IC leg for redundant electrical paths
• Mechanically non-invasive design preserves component integrity
• No soldering required—rapid setup and teardown
• Low parasitic inductance (37 nH at 1 MHz) and minimal capacitive loading (4.3 pF at 1 MHz)
• Contact resistance below 0.1 Ω ensures reliable signal fidelity

– Typical Applications

• In-circuit functional testing of surface-mount ICs
• Signal acquisition and probing during device characterization
• Development and debug workflows for TQFP and QFP packages
• Non-destructive contact testing without lead damage

– Compatibility & Integration

The E2644A integrates with active probe systems and requires external power supply operation. It is designed specifically for 0.65 mm pitch TQFP and QFP packages with 16-signal configurations.