RFP-1 Precision Foil Resistors
       RFP-1 precision foil resistors of increased capacity are designed as standard resistance and measuring current shunts.
       Resistance range:
Operating Rated Power
       0,1 W
Maximum Rated Power
       1 W
1 Ohm
2 Ohm
10 Ohm
20 Ohm
100 Ohm
1 kOhm
10 kOhm
100 kOhm
Operating Rated Power
0,001 ppm
1/2 Operating Rated Power
0,002 ppm
Maximum Rated Power
0,005 ppm
Designation
A
B
C
D
E
Resistor class by tolerance, %
± 1
± 0,1
± 0,05
± 0,01
± 0,005
Resistor class by temperature coefficient of resistance, ppm
± 10
± 5
± 3
± 2
± 1
Long-term stability for 10 000 hours:
       Following a request of the customer we can manufacture resistors with TCR lower than ± 0.5 within the specified temperature interval.
RFP-2 Precision Foil Resistors
      RFP-2 ultra-precision foil resistors are designed as resistance and voltage dividers in high precision direct current circuits or as voltage dividers in high precision voltmeters, nanovoltmeters, voltage and current calibrators, versatile metrological systems, etc.
       Resistance range:
100 Ohm
300 Ohm
1 kOhm
9 kOhm
10 kOhm
20 kOhm
50 kOhm
75 kOhm
100 kOhm
Designation
A
B
C
D
E
Resistor class by tolerance, %
± 1
± 0,1
± 0,05
± 0,01
± 0,005
Resistor class by temperature coefficient of resistance, ppm
± 10
± 5
± 3
± 2
± 1
Resistor Network and Voltage Dividers       

    Foil dividers and resistor networks make it possible to develop precious standards for voltage and current sources with long-term stability of 0,001% per year and temperature coefficient ratio as low as 0.5 ppm and better. In addition, foil dividers and resistor networks can be used in high-precision scaling amplifiers and ensure the gain error of the amplifier being less than 0,001% per year.

    Resistor networks and voltage dividers structurally represent a modular block where a next following resistor serves as a cover for its predecessor. The resistors are connected in series with specially designed terminals. The last resistor is closed with a common cover.
РФП-2 precision resistor dimensions scheme
       Operating Rated Power - 20 mW.
       Long-term stability for 10 000 hours under load not less then 0,002%
РФП-1 precision resistor dimensions scheme
Designation
А
Б
В
Г
Д
Resistor class by tolerance, %
± 1
± 0,1
± 0,05
± 0,01
± 0,005
Resistor class by TCR, ppm
± 10
± 5
± 3
± 2
± 1
Voltage dividers and resistor Network module scheme
Following a request of the customer we can manufacture current shunts with the resistance interval 0,002 - 0,1 Ohm.
       Customized resistors with resistance values varying from 1 Ohm to 100 kOhm can be developed and manufactured in series.

 

RFP-1 and RFP-2 resistors ticket (pdf, 1,77Mb)

Малогабаритный сверхпрецизионный резистор 1 кОм без крышки
Precision resistors and voltage dividers set
AJAX SOOO trademark
Current shunt ШИ 10A scheme
Current shunt ШИ 1A scheme
Русская версия

THE  REPUBLIC  OF BELARUS

AJAX SOOO
Research and production Belarusian and Russian company

Precision Resistor Laboratory

Our address:
       AJAX SOOO, 5 Guikalo Str., 220005 Minsk, The Republic of Belarus

Marketing Department:
       Tel/Fax: +375 17 288-20-84,        +375 17 284-36-91

               E-mail: ajax-by@yandex.ru


Precision Resistor Laboratory:
               Tel. +375 17 293-94-77

       Laboratory Director
       Victor Viktorovich Sorokin
               E-mail: atkp@yandex.ru

 

  ШИ 1A ШИ 10A
Rated resistance, Ohm 0,1 0,01
Tolerance, %  0,01 - 1  0,01 - 1
Maximum rated current, A <2 <10
Shunt self-heating linearity, % 0,01-0,03 0,03-0,05
Long-term stability for 10 000 hours, % 0,01 0,01
Measuring current shunts SHI 1А, SHI 10А
       Measuring current shunts SHI 1A, SHI 10A are designed as a primary current transducer to voltage.
 
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