Agilent/Keysight 41941A

The Agilent/Keysight 41941A is an impedance probe kit that extends the measurement capabilities of the 4194A Impedance/Gain-Phase Analyzer. It enables in-circuit impedance characterization of components, printed circuit patterns, and circuit input/output impedance across a broad frequency range. The kit supports DC biased measurements for evaluating DC parameters in inductors, capacitors, semiconductors, and materials, making it essential for component and circuit characterization in development and production environments.

– Technical Specifications

Frequency Range: 10 kHz to 100 MHz (when used with 4194A)

Impedance Measurement Range: 0.1 Ω to 1 MΩ

Measurement Accuracy: 1.5% to 3%; calibration accuracy guaranteed to probe tips

DC Bias Capabilities:
• External DC Bias: ±150 Vdc, ±0.5 A
• Internal DC Bias (4194A): ±40 V for swept bias measurements
• Maximum combined AC + DC voltage: ±40 V peak
• DUT power consumption limit: 25 W maximum with external bias

Test Cable Length: 1.5 m (3-meter version 41941B available)

– Key Features

• Probe tip calibration standards included with automatic calibration function to eliminate residual impedance and stray admittance errors
• Multiple probe adapters: 3.5-mm short, 3.5-mm 50 Ω load, pin probe for in-situ measurements, ground lead, and BNC adapter
• Calibration accuracy guaranteed to probe tips for reliable in-circuit measurements

– Typical Applications

• Component-level impedance measurements on PCBs
• DC parameter characterization of reactive components under bias
• Input/output impedance evaluation of active circuits
• Material and semiconductor impedance assessment

– Compatibility & Integration

The 41941A is compatible exclusively with the Agilent/Keysight 4194A Impedance/Gain-Phase Analyzer. Requires 4194A ROM version 2.2 or greater; not compatible with ROM version 2.1 and below.