Cropico CR

Cropico CR Series

High accuracy cost effective 4 terminal calibration resistor

This range of low cost 4 terminal calibration resistors combine high accuracy, class 0.02, long-term stability and permanence of calibration in a compact unit.


Constructed using carefully selected low temperature coefficient Manganin or Zeranin wire, depending upon value and mounted to ensure mechanical stability, these resistors will provide a cost effective addition to any laboratory or workshop. Typical applications include calibration reference, accurate current measurement, instrument calibration and accurate shunt resistors.

Technical Specifications

Model Resistance Value Tolerance ± % Resistivity material Max. current in air Nominal voltage at voltage taps Storage stability type/year Part Number
CR-0.0001 100μΩ 0.1 Manganin® sheet <10ppm / ˚C 60A 6mV < 4 x 10-4 930353
CR-0.0002 200μΩ 0.05 60A 12mV < 4 x 10-4 930336
CR-0.0005 500μΩ 0.05 60A 30mV < 4 x 10-4 930422
CR-0.001 1mΩ 0.05 30A 30mV < 5 x 10-5 930004
CR-0.002 2mΩ 0.05 30A 60mV < 5 x 10-5 930337
CR-0.005 5mΩ 0.05 20A 100mV < 5 x 10-5 930423
CR-0.01 10mΩ 0.03 14A 140mV < 5 x 10-5 930005
CR-0.02 20mΩ 0.03 10A 200mV < 5 x 10-5 930416
CR-0.05 50mΩ 0.03 6A 300mV < 5 x 10-5 930424
CR-0.1 100mΩ 0.02 5A 500mV < 3 x 10-5 930006
CR-0.2 200mΩ 0.02 Zeranin® wire <2ppm / ˚C130353 3A 600mV < 2 x 10-5 930425
CR-0.5 500mΩ 0.02 2A 1V < 2 x 10-5 930355
CR-1 0.02 1.5A 1.5V < 1 x 10-5 930007
CR-5 0.02 0.7A 3.5V < 2 x 10-5 930426
CR-10 10Ω 0.02 0.5A 5V < 1 x 10-5 930008
CR-20 20Ω 0.02 0.35A 7V < 2 x 10-5 930427
CR-50 50Ω 0.02 0.2A 10V < 2 x 10-5 930376
CR-100 100Ω 0.02 0.15A 15V < 1 x 10-5 930009
CR-200 200Ω 0.02 0.1A 20V < 2 x 10-5 930428
CR-200 200Ω 0.02 0.1A 20V < 2 x 10-5 930428
CR-500 500Ω 0.02 70mA 35V < 2 x 10-5 930429
CR-2 k 2kΩ 0.02 20mA 40V < 2 x 10-5 930430
CR-5 k 5kΩ 0.02 14mA 70V < 2 x 10-5 930431
CR-10 k 10kΩ 0.02 10mA 100V < 1 x 10-5 930432
CR-20 k 20kΩ 0.02 7mA 140V < 2 x 10-5 930433
CR-50 k 50kΩ 0.02 4mA 200V < 3 x 10-5 930434
CR-50 k 50kΩ 0.02 4mA 200V < 3 x 10-5 930434
CR-100 k 100kΩ 0.02 3 mA 300V < 3 x 10-5 930435

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