HP / Agilent 42030A Four Terminal Pair Standard Resistor Set

The HP/Agilent 42030A Four Terminal Pair Standard Resistor Set is a precision calibration instrument comprising nine discrete resistor standards engineered for high stability and minimal temperature dependence. Designed specifically for four-terminal pair LCR meters and impedance analyzers, this set delivers traceable impedance verification across DC and AC conditions up to 13 MHz, supporting accurate calibration of demanding measurement equipment.

Technical Specifications

Resistor Standards: Nine modules spanning 1 mΩ to 100 kΩ (42031A through 42039A) DC Performance:

• Tolerances: ±0.1% to ±0.2% depending on module


• Temperature coefficient: ±10 ppm/°C to ±15 ppm/°C


• Yearly stability: ±100 ppm AC Calibration (DC to 13 MHz):


• Series resistance uncertainty: ±0.12% at 10 Ω (increasing to ±1.5% at 13 MHz)


• Susceptance uncertainty: ±0.02 μS to 100 kHz (100 kΩ module)


• Calibration parameters: series resistance, reactance, parallel resistance, susceptance Physical:


• Connector: BNC (4-terminal pair)


• Module dimensions: 94 mm H × 31 mm W × 67 mm D


• Module weight: 170 g; kit weight: ~3,700 g (with carrying case) Environmental:


• Operating temperature: 23°C ±5°C (ideal)


• Operating humidity: ≤70% RH


• Storage range: -40°C to +70°C; ≤95% RH at 40°C

Key Features

• High-stability construction virtually unaffected by ambient temperature variations


• NIST-traceable calibration with factory-supplied calibration report


• Protective carrying case (42030-60100) for field and lab use


• Four-terminal pair architecture eliminates lead resistance errors

Typical Applications Calibration and performance verification of precision impedance measurement instruments in metrology labs, manufacturing test environments, and field service operations.

Compatibility & Integration Designed for Keysight E4980A, E4980AL, E4981A, and E4990A instruments and compatible four-terminal pair LCR meters and impedance analyzers.