Gwifren manganinyn aloi copr-manganîs-nicel (aloi CuMnNi) i'w ddefnyddio ar dymheredd ystafell. Nodweddir yr aloi gan rym electromotive thermol isel iawn (emf) o'i gymharu â chopr.
Gwifren manganinyn cael ei ddefnyddio'n nodweddiadol ar gyfer gweithgynhyrchu safonau gwrthiant, gwrthyddion clwyfau gwifren manwl, potensiomedrau, siyntiau a chydrannau trydanol ac electronig eraill.
Priodweddau Trydanol
Priodweddau Mecanyddol
Tymheredd [°C] | cyfernod gwrthedd |
---|---|
12 | +.000006 |
25 | .000000 |
100 | -.000042 |
250 | -.000052 |
475 | .000000 |
500 | +.00011 |
AWG | ohms y cm | ohms y ft |
---|---|---|
10 | .000836 | 0.0255 |
12 | .00133 | 0. 0405 |
14 | .00211 | 0.0644 |
16 | .00336 | 0. 102 |
18 | .00535 | 0. 163 |
20 | .00850 | 0.259 |
22 | .0135 | 0. 412 |
24 | .0215 | 0.655 |
26 | .0342 | 1.04 |
27 | .0431 | 1.31 |
28 | .0543 | 1.66 |
30 | .0864 | 2.63 |
32 | .137 | 4.19 |
34 | .218 | 6.66 |
36 | .347 | 10.6 |
40 | .878 | 26.8 |