The Keysight/Agilent 42942A is a terminal adapter that converts four-terminal-pair impedance analyzer outputs to 7 mm coaxial connectors, enabling direct connection to standard test fixtures. Purpose-built for precision impedance measurement across a broad frequency range, this adapter maintains signal integrity while extending analyzer capability to surface-mount devices and compact components requiring specialized test geometries.
Technical Specifications
• Frequency Range: 40 Hz to 110 MHz (alternative specification: 20 Hz to 120 MHz)
• Maximum Voltage: ±42 V peak (AC+DC)
• Output Port: 7 mm coaxial connector
• Operating Temperature: 0 °C to 40 °C
• Non-operating Temperature: -40 °C to +70 °C
• Operating Humidity: 15% to 95% RH (wet bulb)
• Non-operating Humidity: ≤90% RH (wet bulb)
• Dimensions (Adapter): 190(W) × 55(H) × 140(D) mm
• Dimensions (with Case): 300(W) × 100(H) × 280(D) mm
• Weight (Adapter): 800 g
• Weight (with Case): 2300 g
– Key Features
• Transforms four-terminal-pair configuration to single 7 mm terminal output
• Direct impedance analyzer integration without intermediate cabling
• Supports fixture compatibility across standard test equipment ecosystems
• Complies with EN61010-1:1993 +A2:1995, IEC61010-1:1990 +A1:1992 +A2:1995, CSA C22.2 No.1010.1:1992
• Installation Category I, Pollution Degree 2
– Typical Applications
• Surface-mount device (SMD) impedance characterization
• Magnetic material constant measurement with dedicated fixtures
• Component-level impedance analysis requiring compact test geometries
• Quality assurance and materials testing workflows
– Compatibility & Integration
• Primary Instrument: Agilent/Keysight 4294A Precision Impedance Analyzer
• Fixture Standard: Accepts 7 mm coaxial test fixtures
• Example Fixture: Agilent/Keysight 16454A Magnetic Material Fixture
