6J8/6J8P/6J8X Precision Resistance Wire High Electrical Resistivity and Low TCR for Consistent Performance in Electronic Devices

Brand Name:Senphus
Certification:ISO9001
Model Number:6J8/6J8P/6J8X
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Delivery Time:3 days
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6J8/6J8P/6J8X Precision Resistance Wire High Electrical Resistivity and Low TCR for Consistent Performance in Electronic Devices


6J8/6J8P/6J8X Precision Resistance Wire refers to a type of precision resistor wire commonly used in applications that require stable and accurate electrical resistance. This wire is often made from a Manganin-type alloy, which includes a mix of elements such as Copper (Cu), Nickel (Ni), and Manganese (Mn), though exact compositions can vary slightly across the different grades or designations (6J8, 6J8P, 6J8X).


6J8/6J8P/6J8X Precision Resistance Wire is a high-performance material used in applications requiring precise and stable electrical resistance, with low temperature dependency and high durability. It is ideal for calibration, current sensing, and precision measurement applications across scientific, industrial, and high-tech fields. The various grades (P and X) offer enhanced properties for more demanding or specialized applications, ensuring accuracy and long-term reliability.


Chemical Composition Wt.%

6J8 F1 Manganin

%SiCuMn
Min18
Max2Rest10

Chemical composition


NameTypeMain chemical composition %
CuMnNiSi
Manganin6J12Rest11~132~3/
F1 Manganin6J8Rest8~10/1~2
F2 Manganin6J13Rest11~132~5/

Volume resistivity for wires, sheet and ribbons


NameTypeVolume resistivity (μΩ·m)
Manganin6J120.47±0.03
F1 Manganin6J80.35±0.05
F2 Manganin6J130.44±0.04

Average resistance-temperature coefficient of Constantan


NameApplication temperatureTest temperatureResistance-temperature coefficientAverage resistance-temperature coefficient
α×10-6-1β×10-6-1α×10-6 ℃-1
Manganin wire, sheetLevel 15~4510, 20, 40-3~+5-0.7~0/
Level 2-5~+10
Level 3-10~+5
F1 Manganin wire, sheet10~8010, 20, 40-5~+10-0.25~0/
F2 Manganin wire, sheet10~800~+40-0.7~1/

Elongation rate


Dia.(mm)Elongation rate (Lo=200mm), %
0.056
>0.05~0.108
>0.10~0.5012
>0.5015

Thermal EMF rate for copper


NameTypeTemperatureAverage thermal EMF rate for copper
Manganin6J120~1001
F1 Manganin6J80~1002
F2 Manganin6J130~1003
Note: Thermal EMF rate for copper is absolute value

The net weight per spool


Dia(mm)Net weight (g)Dia(mm)Net weight (g)
0.02~0.0255>0.28~0.45300
>0.025~0.0310>0.45~0.63400
>0.03~0.0415>0.63~0.75700
>0.04~0.0630>0.75~1.181200
>0.06~0.0860>1.18~2.502000
>0.08~0.1580>2.50~3.003000
>0.15~0.28150  

Manganin(6J12) Technical data of wires


Dia. (mm)Cross-sectional area (mm²)Weight/Meter (g/m)Resistance/Meter at 20℃ (Ω/m)Dia. (mm)Cross-sectional area (mm²)Weight/Meter (g/m)Resistance/Meter at 20℃ (Ω/m)
0.0200.0003140.002651346-16460.2240.039410.332611.2-12.6
0.0220.0003180.003211113-13600.2500.049090.4149.00-10.15
0.0250.0004910.00414862-10530.2800.061580.51977.17-8.09
0.0280.0006160.0052687-8400.3150.077930.65775.73-6.33
0.0320.0008040.00679583-6310.3550.98980.83544.51-4.99
0.0360.0010180.00859452-4990.4000.12571.0613.55-3.93
0.0400.0012570.01061344-4040.4500.1591.3422.81-3.10
0.0450.0015090.01342272-3190.5000.19631.6572.27-2.51
0.0500.0019630.01657220-2590.5600.24632.081.83-1.98
0.0560.0024630.02079176-2060.6300.31172.631.45-1.57
0.0630.0031170.02631139-1630.7100.39593.341.14-1.23
0.0710.0039590.03341109-1280.7500.44183.731.02-1.11
0.0800.0050270.0424386.0-101.00.8000.50274.240.898-0.972
0.0900.0063620.053768.0-79.800.8500.56744.790.795-0.861
0.1000.0078540.066355.1-64.60.9000.63625.370.709-0.768
0.1120.0098520.0831544.4-51.00.9500.70885.980.637-0.690
0.1250.012270.103635.6-41.01.0000.78546.630.574-0.622
0.1400.015390.129928.4-32.71.0600.88257.450.511-0.554
0.1500.017670.149124.7-28.51.1200.98528.320.458-0.496
0.1600.020110.169721.7-25.01.1801.0949.230.413-0.447
0.1700.022700.191619.3-22.21.2501.22710.360.368-0.398
0.1800.025450.214817.2-19.81.3201.36811.550.330-0.357
0.1900.028350.23915.4-17.71.4001.53912.990.293-0.318
0.2000.031420.265214.1-15.91.5001.76714.910.255-0.277
0.2120.035300.297912.5-14.11.6002.01116.970.224-0.243

Constantan&Manganin wire data table


Dia.(mm)Sectional area nominal value(mm2)Resistance per meter (Ω/m)
6J12X6J8X6J13X6J40X

Nominal value

(mm)

ToleranceNominal value (Ω/m)ToleranceNominal value (Ω/m)ToleranceNominal value (Ω/m)ToleranceNominal value (Ω/m)Tolerance
0.020±0.0020.0003141496±10%    1528±10%
0.0220.00038012361263
0.0250.000491957978
0.0280.000616763780
0.032±0.0030.000804584±8% ±8% ±8%597±8%
0.0360.001018462472
0.0400.001257374382
0.0450.001590296302
0.0500.001963239244
0.0560.002463191195
0.0630.003117151154
0.0710.003959119121
0.0800.00502793.569.687.595.5
0.0900.00636273.955.069.275.5
0.1000.00785459.844.656.061.1
0.112±0.0050.00985247.7±7%35.5±7%44.7±7%48.7±7%
0.1250.0122738.328.535.939.1
0.1400.0153930.522.728.631.2
0.1600.0201123.417.421.923.9
0.1800.0254518.513.817.318.9
0.200±0.0050.0314215.0±6%11.1±6%14.0±6%15.3±6%
0.2240.0394111.98.8811.212.2
0.2500.049099.577.138.969.78
0.2800.061587.635.687.157.80
0.315±0.0100.0077936.03±5%4.49±5%5.65±5%6.16±5%
0.3550.098984.753.544.454.85
0.4000.12573.742.793.503.82
0.4500.15902.962.202.773.02
0.500±0.0150.19632.39±4%1.78±4%2.24±4%2.44±4%
0.5600.24631.911.421.791.95
0.6300.31171.511.121.411.51
0.7100.39591.190.8841.111.21
0.7500.44181.060.7921.001.09
0.8000.50270.9350.6960.8750.955
0.8500.56740.8280.6170.7750.846
0.9000.63620.7390.5500.6920.755
0.9500.70880.6630.4940.6210.677
1.0000.78540.5980.4460.5600.611
1.060±0.0200.88520.533±4%0.397±4%0.499±4%0.544±4%
1.1200.98520.4770.3550.4470.487
1.1801.0940.4300.3200.4020.439
1.2501.2270.3830.2850.3590.391
1.3201.3680.3430.2560.3220.351
1.4001.5390.3050.2270.2860.312
1.5001.7670.2660.1980.2490.272
1.6002.0110.2340.1740.2190.239
1.700±0.0252.2700.207±4%0.154±4%0.194±4%0.211±4%
1.8002.5450.1850.1380.1730.189
1.9002.8350.1660.1230.1550.169
2.0003.1420.150.1110.1400.153
2.1203.5300.1330.09920.1250.136
2.240±0.0303.9410.119±4%0.0888±4%0.112±4%0.122±4%
2.3604.3740.1070.08000.1010.110
2.5004.9090.09570.07130.08960.0978
2.6505.5150.08520.06350.07980.0870
2.8006.1580.07630.05680.07150.0780
3.0007.0690.06650.04950.06220.0679
3.150±0.0357.7930.0603±4%0.0449±4%0.0565±4%0.0616±4%
3.3508.8140.05330.03970.04990.0545
3.5509.8980.04750.03540.04450.0485
3.75011.040.04260.03170.03980.0435
4.00012.570.03740.02790.03500.0382
4.25014.190.03310.02470.03100.0338
4.50015.900.02960.02200.02770.0302
4.750±0.04017.720.0265±4%0.0198±4%0.0248±4%0.0271±4%
5.00019.630.02390.01780.02240.0244
5.300±0.05022.060.0213±4%0.0159±4%0.0199±4%0.0218±4%
5.60024.630.01910.01420.01790.0195
6.000±0.06028.270.0166±4%0.0124±4%0.0156±4%0.017±4%
6.30031.170.01510.01120.01410.0154

Sheet size


Thickness(mm)ToleranceWidth(mm)Tolerance
0.1±0.01050
75
100
Width<100mm, ±1
Width≥100mm, ±1.5
0.112
0.125
0.140
0.160
0.180±0.0100-0.020
0.200
0.224
0.250
0.280
0.315
0.355
0.400±0.02050
75
100
125
150
175
0.450
0.500
0.560±0.020-0.030
0.630
0.710
0.800±0.030
0.900
1.000±0.040
1.120
1.250
1.400±0.050
1.600
1.800±0.060
2.000

Manganin strip table, Cross-sectional area(mm2)


Width(mm)


Thickness(mm)
6.38.010.012.516.020.025.031.540.0
±0.3±0.3±0.3±0.4±0.4±0.5±0.5±0.6±0.7
0.180±0.0101.066        
0.2001.184       
0.2241.3271.684      
0.250+0.01
-0.02
1.4811.8802.450     
0.2801.6582.1062.744      
0.3151.8652.3693.0873.859    
0.3552.1022.6703.4794.349    
0.400±0.0202.3693.0083.9204.9006.272   
0.4502.6653.3844.4105.5137.0568.82011.03  
0.5002.9613.7604.9006.1257.8409.80012.25  
0.560+0.020
-0.030
3.3164.2115.4886.8608.78110.9813.72 
0.6303.7314.7386.1747.7189.87812.3515.44 
0.7104.2055.3396.9588.69811.1313.9217.40 
0.800±0.0304.7386.0167.8409.80012.5415.6819.6024.7031.36
0.9005.336.7688.82011.0314.1117.6422.0527.7835.28
1.000±0.0405.9227.5209.80012.2515.6819.6024.5030.8739.20
1.1206.6338.42210.9813.7217.5621.9527.4434.5743.90
1.2507.4039.40012.2515.3119.6024.5030.6338.5949.00
1.400±0.0508.29110.5313.7217.1521.9527.4434.3043.2254.88
1.6009.47512.0315.6819.6025.0931.3639.2049.3962.72
1.800±0.06010.6613.5417.6422.0528.2235.2844.1055.5770.56
2.00011.8415.0419.6024.5031.3639.2049.0061.7478.40
Note : The effective cross-sectional area of strip is the product of its width and thickness multiplies
the following coefficient:
Width<10mm, multiplied by 0.98;
Width≥10mm, multiplied by 0.94.

Some key features of 6J8 include:

  • High Resistivity:

6J8 wires are typically used in resistors or current-sensing applications where stable, high resistivity is required.

  • Low TCR:

The wire’s low temperature coefficient ensures that resistance remains stable across varying temperatures, which is vital for precision instruments.

  • Corrosion Resistance:

The alloy provides resistance to oxidation and corrosion, even in harsh or humid environments, ensuring the longevity and accuracy of the components.

  • Mechanical Properties:

The wire has good tensile strength and can be drawn into fine wire forms for specific applications like precision resistors, shunt resistors, and heating elements.


Application

  • Precision Resistors:

Used in standard resistors for calibration and reference, ensuring high accuracy.

Employed in high-precision measurement instruments, including digital multimeters, bridge circuits, and laboratory-grade equipment.

  • Current Shunt Resistors:

Ideal for current sensing in high-accuracy electronic circuits, providing reliable resistance under varying load conditions.

  • Thermally Compensated Components:

Used in circuits where temperature stability is critical, ensuring consistent performance in temperature-sensitive applications.

  • Calibration Equipment:

Employed in precision calibration systems to maintain accuracy over time and under different environmental conditions.

  • Industrial and Laboratory Use:

Found in industrial control systems, temperature measurement devices, and scientific research equipment that require precise and stable electrical resistance.

Advantages of 6J8 Series Precision Resistance Wire:

  • Long-Term Stability: The material offers stable resistance over long periods, crucial for calibration and measurement applications.
  • Low Noise: Offers low electromagnetic interference (EMI) and thermal EMF, making it suitable for sensitive measurements.
  • Durability: Resistant to corrosion and oxidation, ensuring reliable performance in harsh environments.
  • Versatility: Available in different grades (6J8, 6J8P, 6J8X) for a variety of precision applications, from standard resistors to industrial-grade components.


China 6J8/6J8P/6J8X Precision Resistance Wire High Electrical Resistivity and Low TCR for Consistent Performance in Electronic Devices supplier

6J8/6J8P/6J8X Precision Resistance Wire High Electrical Resistivity and Low TCR for Consistent Performance in Electronic Devices

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