9210A Series

9210A-1 (PRIMARY)

1 Ω Resistor with Carrying Case

  • Replacement for Thomas 1 Ω
  • Temperature Coefficient < 0.05 × 10-6/°C
  • Long Term Drift < 0.2 × 10-6/Year
  • No Pressure Coefficient
  • Maximum Dissipation 100 mW
  • Highest Performance Dissipation 10 mW

9210A-0.1 (PRIMARY)

0.1 Ω Resistor with Carrying Case

  • Temperature Coefficient < 0.05 × 10-6/°C
  • Long Term Drift < 0.2 × 10-6/Year
  • No Pressure Coefficient
  • Maximum Dissipation 100 mW
  • Highest Performance Dissipation 10 mW
Features & Benefits

The Model 9210A MI-Type standard has been developed through years of research by NRCC and Measurements International and is now offered as an improved resistor design to replace the L&N Thomas-Type One-Ohm Standard as well as other values. These improvements have been achieved through a new annealing process of the element and changes in the structural mounting. Historical data is now proving the Model 9210A to be the most stable oil filled resistor commercially available.

The Model 9210A features a long term drift rate less than 0.2 ppm per year and a temperature coefficient of less than 0.05 ppm/°C.

Specifications
Model Nominal
Value
Ohms		 Tolerance
±ppm 		First Year
Drift (ppm)		 Stability
12 Month
(ppm) 		Max
Current (A)		 TC at
25 °C ± 1 °C
(ppm/°C)		 Maximum
Voltage
9210A/0.1 0.1 < 10 ppm 1 0.2 1 0.05 0.1
9210A/1 1 < 10 ppm 1 0.2 0.1 0.05 0.1

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