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.

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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	1Ω	0.02		1.5A	1.5V	< 1 x 10-5	930007
CR-5	5Ω	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