Agilent/Keysight 16486A

The Agilent/Keysight 16486A is a test fixture engineered for precise impedance measurements of surface-mount devices (SMDs) in conjunction with Keysight impedance analyzers. It delivers accurate and repeatable characterization by providing reliable electrical connections while minimizing parasitic effects that degrade impedance measurement fidelity. The fixture addresses a critical need in component validation workflows where high-accuracy impedance data drives design decisions and quality assurance.

– Technical Specifications

The 16486A accommodates surface-mount devices through a compact form factor with a contact mechanism designed to establish consistent electrical connection at SMD terminals. Its design minimizes unwanted inductance, capacitance, and resistance contributions from test leads and fixture geometry—parasitic effects that corrupt impedance characterization across device evaluation frequencies.

Measurement performance is coupled directly to the host impedance analyzer’s capabilities. Like all test fixtures, the 16486A contributes inherent error terms including open repeatability, short repeatability, and proportional error. Optimal accuracy requires calibration procedures (Open/Short/Load) performed on the impedance analyzer with the fixture installed to establish baseline residual impedance and account for fixture error contribution during device characterization.

– Key Features

• Engineered parasitic minimization for high-fidelity SMD impedance measurement
• Compact geometry accommodates small form-factor components
• Direct SMD terminal contact mechanism ensures repeatability
• Compatible with Keysight impedance analyzer product line
• Supports standard calibration methodologies for error correction

– Typical Applications

The 16486A serves design and validation environments requiring precision impedance characterization: capacitor and inductor evaluation across operating frequencies, filter component validation, RF interconnect assessment, and PCB assembly quality control. Applications demanding high-accuracy impedance data—where parasitic contributions must be quantified and removed—benefit from this fixture’s design approach.

– Compatibility & Integration

The fixture connects directly to Agilent/Keysight impedance analyzers. Integration follows standard test fixture protocols: mechanical mounting to the analyzer, electrical connection to measurement terminals, and inclusion in the analyzer’s calibration workflow. Specific model compatibility details appear in individual analyzer documentation and accessory compatibility matrices.