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

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

6J8/6J8P/6J8X Precision Resistance Wire High Electrical Resistivity and Low TCR for Consistent Performance in Electronic Devices
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Brand Name :Senphus
Model Number :6J8/6J8P/6J8X
Place of Origin :China
MOQ :5kg
Payment Terms :T/T, D/P
Supply Ability :30 Tons per day
Delivery Time :3 days
Packaging Details :Packed with waterproof paper or weave bag, into pallets or wooden case. Special packaging requirements can also be accommodated.
Certification :ISO9001
Place of Orig :Jiangsu, China
Type :F1 Manganin
Application :Resistance elements and shunt resistors in precision instruments
Color :Brassy yellow
Product name :6J8 F1 Manganin wire
Volume resistivity (μΩ·m) :0.35±0.05
Application temperature :10~80
Resistance-temperature coefficient （β×10-6 ℃-1） :-0.25~0
Thermal EMF rate for copper :2
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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

 % Si Cu Mn
Min 1 8
Max 2 Rest 10

Chemical composition

Name Type Main chemical composition %
Cu Mn Ni Si
Manganin 6J12 Rest 11~13 2~3 /
F1 Manganin 6J8 Rest 8~10 / 1~2
F2 Manganin 6J13 Rest 11~13 2~5 /

Volume resistivity for wires, sheet and ribbons

Name Type Volume resistivity (μΩ·m)
Manganin 6J12 0.47±0.03
F1 Manganin 6J8 0.35±0.05
F2 Manganin 6J13 0.44±0.04

Average resistance-temperature coefficient of Constantan

Name Application temperature Test temperature Resistance-temperature coefficient Average resistance-temperature coefficient
α×10-6 ℃-1 β×10-6 ℃-1 α×10-6 ℃-1
Manganin wire, sheet Level 1 5~45 10, 20, 40 -3~+5 -0.7~0 /
Level 2 -5~+10
Level 3 -10~+5
F1 Manganin wire, sheet 10~80 10, 20, 40 -5~+10 -0.25~0 /
F2 Manganin wire, sheet 10~80 0~+40 -0.7~1 /

Elongation rate

Dia.(mm) Elongation rate (Lo=200mm), %
0.05 6
＞0.05~0.10 8
＞0.10~0.50 12
＞0.50 15

Thermal EMF rate for copper

Name Type Temperature Average thermal EMF rate for copper
Manganin 6J12 0~100 1
F1 Manganin 6J8 0~100 2
F2 Manganin 6J13 0~100 3
Note: Thermal EMF rate for copper is absolute value

The net weight per spool

Dia(mm) Net weight (g) Dia(mm) Net weight (g)
0.02~0.025 5 >0.28~0.45 300
>0.025~0.03 10 >0.45~0.63 400
>0.03~0.04 15 >0.63~0.75 700
>0.04~0.06 30 >0.75~1.18 1200
>0.06~0.08 60 >1.18~2.50 2000
>0.08~0.15 80 >2.50~3.00 3000
>0.15~0.28 150 　 　

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)
0.020 0.000314 0.00265 1346-1646 0.224 0.03941 0.3326 11.2-12.6
0.022 0.000318 0.00321 1113-1360 0.250 0.04909 0.414 9.00-10.15
0.025 0.000491 0.00414 862-1053 0.280 0.06158 0.5197 7.17-8.09
0.028 0.000616 0.0052 687-840 0.315 0.07793 0.6577 5.73-6.33
0.032 0.000804 0.00679 583-631 0.355 0.9898 0.8354 4.51-4.99
0.036 0.001018 0.00859 452-499 0.400 0.1257 1.061 3.55-3.93
0.040 0.001257 0.01061 344-404 0.450 0.159 1.342 2.81-3.10
0.045 0.001509 0.01342 272-319 0.500 0.1963 1.657 2.27-2.51
0.050 0.001963 0.01657 220-259 0.560 0.2463 2.08 1.83-1.98
0.056 0.002463 0.02079 176-206 0.630 0.3117 2.63 1.45-1.57
0.063 0.003117 0.02631 139-163 0.710 0.3959 3.34 1.14-1.23
0.071 0.003959 0.03341 109-128 0.750 0.4418 3.73 1.02-1.11
0.080 0.005027 0.04243 86.0-101.0 0.800 0.5027 4.24 0.898-0.972
0.090 0.006362 0.0537 68.0-79.80 0.850 0.5674 4.79 0.795-0.861
0.100 0.007854 0.0663 55.1-64.6 0.900 0.6362 5.37 0.709-0.768
0.112 0.009852 0.08315 44.4-51.0 0.950 0.7088 5.98 0.637-0.690
0.125 0.01227 0.1036 35.6-41.0 1.000 0.7854 6.63 0.574-0.622
0.140 0.01539 0.1299 28.4-32.7 1.060 0.8825 7.45 0.511-0.554
0.150 0.01767 0.1491 24.7-28.5 1.120 0.9852 8.32 0.458-0.496
0.160 0.02011 0.1697 21.7-25.0 1.180 1.094 9.23 0.413-0.447
0.170 0.02270 0.1916 19.3-22.2 1.250 1.227 10.36 0.368-0.398
0.180 0.02545 0.2148 17.2-19.8 1.320 1.368 11.55 0.330-0.357
0.190 0.02835 0.239 15.4-17.7 1.400 1.539 12.99 0.293-0.318
0.200 0.03142 0.2652 14.1-15.9 1.500 1.767 14.91 0.255-0.277
0.212 0.03530 0.2979 12.5-14.1 1.600 2.011 16.97 0.224-0.243

Constantan&Manganin wire data table

Dia.(mm) Sectional area nominal value(mm2) Resistance per meter (Ω/m)
6J12X 6J8X 6J13X 6J40X

Nominal value

(mm)

 Tolerance Nominal value (Ω/m) Tolerance Nominal value (Ω/m) Tolerance Nominal value (Ω/m) Tolerance Nominal value (Ω/m) Tolerance
0.020 ±0.002 0.000314 1496 ±10% 　 　 　 　 1528 ±10%
0.022 0.000380 1236 1263
0.025 0.000491 957 978
0.028 0.000616 763 780
0.032 ±0.003 0.000804 584 ±8% 　 ±8% 　 ±8% 597 ±8%
0.036 0.001018 462 472
0.040 0.001257 374 382
0.045 0.001590 296 302
0.050 0.001963 239 244
0.056 0.002463 191 195
0.063 0.003117 151 154
0.071 0.003959 119 121
0.080 0.005027 93.5 69.6 87.5 95.5
0.090 0.006362 73.9 55.0 69.2 75.5
0.100 0.007854 59.8 44.6 56.0 61.1
0.112 ±0.005 0.009852 47.7 ±7% 35.5 ±7% 44.7 ±7% 48.7 ±7%
0.125 0.01227 38.3 28.5 35.9 39.1
0.140 0.01539 30.5 22.7 28.6 31.2
0.160 0.02011 23.4 17.4 21.9 23.9
0.180 0.02545 18.5 13.8 17.3 18.9
0.200 ±0.005 0.03142 15.0 ±6% 11.1 ±6% 14.0 ±6% 15.3 ±6%
0.224 0.03941 11.9 8.88 11.2 12.2
0.250 0.04909 9.57 7.13 8.96 9.78
0.280 0.06158 7.63 5.68 7.15 7.80
0.315 ±0.010 0.007793 6.03 ±5% 4.49 ±5% 5.65 ±5% 6.16 ±5%
0.355 0.09898 4.75 3.54 4.45 4.85
0.400 0.1257 3.74 2.79 3.50 3.82
0.450 0.1590 2.96 2.20 2.77 3.02
0.500 ±0.015 0.1963 2.39 ±4% 1.78 ±4% 2.24 ±4% 2.44 ±4%
0.560 0.2463 1.91 1.42 1.79 1.95
0.630 0.3117 1.51 1.12 1.41 1.51
0.710 0.3959 1.19 0.884 1.11 1.21
0.750 0.4418 1.06 0.792 1.00 1.09
0.800 0.5027 0.935 0.696 0.875 0.955
0.850 0.5674 0.828 0.617 0.775 0.846
0.900 0.6362 0.739 0.550 0.692 0.755
0.950 0.7088 0.663 0.494 0.621 0.677
1.000 0.7854 0.598 0.446 0.560 0.611
1.060 ±0.020 0.8852 0.533 ±4% 0.397 ±4% 0.499 ±4% 0.544 ±4%
1.120 0.9852 0.477 0.355 0.447 0.487
1.180 1.094 0.430 0.320 0.402 0.439
1.250 1.227 0.383 0.285 0.359 0.391
1.320 1.368 0.343 0.256 0.322 0.351
1.400 1.539 0.305 0.227 0.286 0.312
1.500 1.767 0.266 0.198 0.249 0.272
1.600 2.011 0.234 0.174 0.219 0.239
1.700 ±0.025 2.270 0.207 ±4% 0.154 ±4% 0.194 ±4% 0.211 ±4%
1.800 2.545 0.185 0.138 0.173 0.189
1.900 2.835 0.166 0.123 0.155 0.169
2.000 3.142 0.15 0.111 0.140 0.153
2.120 3.530 0.133 0.0992 0.125 0.136
2.240 ±0.030 3.941 0.119 ±4% 0.0888 ±4% 0.112 ±4% 0.122 ±4%
2.360 4.374 0.107 0.0800 0.101 0.110
2.500 4.909 0.0957 0.0713 0.0896 0.0978
2.650 5.515 0.0852 0.0635 0.0798 0.0870
2.800 6.158 0.0763 0.0568 0.0715 0.0780
3.000 7.069 0.0665 0.0495 0.0622 0.0679
3.150 ±0.035 7.793 0.0603 ±4% 0.0449 ±4% 0.0565 ±4% 0.0616 ±4%
3.350 8.814 0.0533 0.0397 0.0499 0.0545
3.550 9.898 0.0475 0.0354 0.0445 0.0485
3.750 11.04 0.0426 0.0317 0.0398 0.0435
4.000 12.57 0.0374 0.0279 0.0350 0.0382
4.250 14.19 0.0331 0.0247 0.0310 0.0338
4.500 15.90 0.0296 0.0220 0.0277 0.0302
4.750 ±0.040 17.72 0.0265 ±4% 0.0198 ±4% 0.0248 ±4% 0.0271 ±4%
5.000 19.63 0.0239 0.0178 0.0224 0.0244
5.300 ±0.050 22.06 0.0213 ±4% 0.0159 ±4% 0.0199 ±4% 0.0218 ±4%
5.600 24.63 0.0191 0.0142 0.0179 0.0195
6.000 ±0.060 28.27 0.0166 ±4% 0.0124 ±4% 0.0156 ±4% 0.017 ±4%
6.300 31.17 0.0151 0.0112 0.0141 0.0154

Sheet size

Thickness(mm) Tolerance Width(mm) Tolerance
0.1 ±0.010 50
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 ±0.020 50
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)		 6.3 8.0 10.0 12.5 16.0 20.0 25.0 31.5 40.0
±0.3 ±0.3 ±0.3 ±0.4 ±0.4 ±0.5 ±0.5 ±0.6 ±0.7
0.180 ±0.010 1.066 　 　 　 　 　 　 　 　
0.200 1.184 　 　 　 　 　 　 　
0.224 1.327 1.684 　 　 　 　 　 　
0.250 +0.01
-0.02		 1.481 1.880 2.450 　 　 　 　 　
0.280 1.658 2.106 2.744 　 　 　 　 　 　
0.315 1.865 2.369 3.087 3.859 　 　 　 　
0.355 2.102 2.670 3.479 4.349 　 　 　 　
0.400 ±0.020 2.369 3.008 3.920 4.900 6.272 　 　 　
0.450 2.665 3.384 4.410 5.513 7.056 8.820 11.03 　 　
0.500 2.961 3.760 4.900 6.125 7.840 9.800 12.25 　 　
0.560 +0.020
-0.030		 3.316 4.211 5.488 6.860 8.781 10.98 13.72 　
0.630 3.731 4.738 6.174 7.718 9.878 12.35 15.44 　
0.710 4.205 5.339 6.958 8.698 11.13 13.92 17.40 　
0.800 ±0.030 4.738 6.016 7.840 9.800 12.54 15.68 19.60 24.70 31.36
0.900 5.33 6.768 8.820 11.03 14.11 17.64 22.05 27.78 35.28
1.000 ±0.040 5.922 7.520 9.800 12.25 15.68 19.60 24.50 30.87 39.20
1.120 6.633 8.422 10.98 13.72 17.56 21.95 27.44 34.57 43.90
1.250 7.403 9.400 12.25 15.31 19.60 24.50 30.63 38.59 49.00
1.400 ±0.050 8.291 10.53 13.72 17.15 21.95 27.44 34.30 43.22 54.88
1.600 9.475 12.03 15.68 19.60 25.09 31.36 39.20 49.39 62.72
1.800 ±0.060 10.66 13.54 17.64 22.05 28.22 35.28 44.10 55.57 70.56
2.000 11.84 15.04 19.60 24.50 31.36 39.20 49.00 61.74 78.40
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.

6J8/6J8P/6J8X Precision Resistance Wire High Electrical Resistivity and Low TCR for Consistent Performance in Electronic Devices6J8/6J8P/6J8X Precision Resistance Wire High Electrical Resistivity and Low TCR for Consistent Performance in Electronic Devices6J8/6J8P/6J8X Precision Resistance Wire High Electrical Resistivity and Low TCR for Consistent Performance in Electronic Devices

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