A Fita Resistiva de resistência refere-se à faixa metálica retangular de seção transversal com cantos arredondados. Sua espessura varia de 0,025 mm a 2 mm,enquanto sua largura é geralmente menor que 5 mm. A proporção entre sua largura e espessura varia de 2:1 a 50:1,assim por diante. Como o formato de uma tira tem o formato de uma correia,às vezes também é chamada de correia plana ultra estreita. Em comparação com o fio redondo mais comum,a Fita resistiva por resistência tem várias vantagens exclusivas nas áreas de dissipação de calor,superfície das interfaces de soldagem,resistência à corrosão,controle de resistência à tração,etc.
A Fita resistiva para resistências é amplamente utilizada nas aplicações de instrumentos de ponta,componentes de aparelhos elétricos,peças de vácuo,dispositivos de resistência elétrica,bem como fios condutores e peças mecânicas em equipamentos semicondutores. Uma tira com uma largura de 2 mm ou menos preenche a inadequação de uma correia ultra estreita que não poderia ser realizada dividindo a tira.
w*t | área de seção | 0Cr25Al5 | 0Cr21Al4 | Cr20Ni80 | Cr15Ni60 | |||||||||||
resistividade elétrica | resistividade elétrica | resistividade elétrica | resistividade elétrica | |||||||||||||
μΩ/m,20℃1.42±0.06 | μΩ/m,20℃1.23±0.06 | μΩ/m,20℃1.09~1.14±0.06 | μΩ/m,20℃1.11~1.15±0.06 | |||||||||||||
mm | mm2 | Ω/m, | m/kg | kg/m | Ω/m, | m/kg | kg/m | Ω/m, | m/kg | kg/m | Ω/m, | m/kg | kg/m | |||
20℃ | 20℃ | 20℃ | 20℃ | |||||||||||||
0.08*0.2 | 0.0152 | 93.42 | 9266 | 0.000108 | 80.92 | 8951 | 0.000112 | 71.71 | 7832 | 0.000128 | 73.03 | 8023 | 0.000125 | |||
0.08*0.4 | 0.0304 | 46.71 | 4633 | 0.000216 | 40.46 | 4475 | 0.000223 | 35.86 | 3916 | 0.000255 | 36.51 | 4012 | 0.000249 | |||
0.08*0.6 | 0.0456 | 31.14 | 3089 | 0.000324 | 26.97 | 2984 | 0.000335 | 23.9 | 2611 | 0.000383 | 24.34 | 2674 | 0.000374 | |||
0.08*0.8 | 0.0608 | 23.36 | 2317 | 0.000432 | 20.23 | 2238 | 0.000447 | 17.93 | 1958 | 0.000511 | 18.26 | 2006 | 0.000499 | |||
0.08*1 | 0.076 | 18.68 | 1584 | 0.00054 | 16.18 | 1790 | 0.000559 | 14.87 | 1567 | 0.000638 | 15 | 1605 | 0.000623 | |||
0.08*1.2 | 0.0912 | 15.57 | 1544 | 0.000648 | 13.49 | 1492 | 0.00067 | 12.39 | 1305 | 0.000766 | 12.5 | 1337 | 0.000748 | |||
0.08*1.5 | 0.114 | 12.46 | 1235 | 0.000809 | 10.79 | 1193 | 0.000838 | 9.912 | 1044 | 0.000958 | 10 | 1070 | 0.000935 | |||
0.08*2 | 0.152 | 9.342 | 927 | 0.00108 | 8.092 | 895 | 0.00112 | 7.434 | 783 | 0.00128 | 7.5 | 802 | 0.00125 | |||
0.10*0.2 | 0.019 | 74.74 | 7413 | 0.000135 | 64.74 | 7161 | 0.00014 | 57.37 | 6266 | 0.00016 | 58.42 | 6418 | 0.000156 | |||
0.10*0.4 | 0.038 | 37.37 | 3706 | 0.00027 | 32.37 | 3580 | 0.000279 | 28.68 | 3133 | 0.000319 | 29.21 | 3209 | 0.000312 | |||
0.10*0.6 | 0.057 | 24.91 | 2471 | 0.000405 | 21.58 | 2387 | 0.000419 | 19.12 | 2089 | 0.000479 | 19.47 | 2139 | 0.000467 | |||
0.10*0.8 | 0.076 | 18.68 | 1853 | 0.00054 | 16.18 | 1790 | 0.000559 | 14.34 | 1566 | 0.000638 | 14.61 | 1605 | 0.000623 | |||
0.10*1 | 0.095 | 14.95 | 1483 | 0.000675 | 12.95 | 1432 | 0.000698 | 11.89 | 1253 | 0.000798 | 12 | 1284 | 0.000779 | |||
0.10*1.5 | 0.143 | 9.93 | 985 | 0.00102 | 8.601 | 951 | 0.00105 | 7.902 | 833 | 0.0012 | 7.97 | 853 | 0.00117 | |||
0.10*2 | 0.19 | 7.474 | 741 | 0.00135 | 6.474 | 716 | 0.0014 | 5.947 | 627 | 0.0016 | 6 | 642 | 0.00156 | |||
0.10*3 | 0.285 | 4.982 | 494 | 0.00202 | 4.316 | 477 | 0.00209 | 3.965 | 418 | 0.00239 | 4 | 428 | 0.00234 | |||
0.15*0.2 | 0.0285 | 49.82 | 4942 | 0.000202 | 43.16 | 4773 | 0.000209 | 38.25 | 4184 | 0.000239 | 38.95 | 4279 | 0.000234 | |||
0.15*0.4 | 0.057 | 24.91 | 2471 | 0.000405 | 21.58 | 0.000419 | 19.12 | 2089 | 0.000479 | 19.47 | 2139 | 0.000467 | ||||
0.15*0.6 | 0.0855 | 16.61 | 1647 | 0.000607 | 14.39 | 1591 | 0.000628 | 12.75 | 1392 | 0.000718 | 12.98 | 1426 | 0.000701 | |||
0.15*0.8 | 0.114 | 12.46 | 1235 | 0.000809 | 10.79 | 1193 | 0.000838 | 9.561 | 1044 | 0.000958 | 9.74 | 1070 | 0.000935 | |||
0.15*1 | 0.143 | 9.93 | 985 | 0.00102 | 8.601 | 951 | 0.00105 | 7.902 | 833 | 0.0012 | 7.97 | 853 | 0.00117 | |||
0.15*1.5 | 0.214 | 6.636 | 658 | 0.00152 | 5.748 | 636 | 0.00157 | 5.28 | 556 | 0.0018 | 5.33 | 570 | 0.00175 | |||
0.15*2 | 0.285 | 4.982 | 494 | 0.00202 | 4.316 | 477 | 0.00209 | 3.956 | 418 | 0.00239 | 4 | 428 | 0.00234 | |||
0.15*3 | 0.428 | 3.318 | 329 | 0.00304 | 2.874 | 318 | 0.00315 | 2.64 | 278 | 0.0036 | 2.66 | 285 | 0.00351 | |||
0.20*0.4 | 0.076 | 18.68 | 1853 | 0.00054 | 16.18 | 1790 | 0.000559 | 14.34 | 1567 | 0.000638 | 14.61 | 1605 | 0.000623 | |||
0.20*0.6 | 0.114 | 12.46 | 1235 | 0.000809 | 10.79 | 1193 | 0.000838 | 9.561 | 1044 | 0.000958 | 9.74 | 1070 | 0.000935 | |||
0.20*0.8 | 0.152 | 9.342 | 927 | 0.00108 | 8.092 | 895 | 0.00112 | 7.171 | 783 | 0.00128 | 7.3 | 802 | 0.00125 | |||
0.20*1 | 0.19 | 7.474 | 741 | 0.00135 | 6.474 | 716 | 0.0014 | 5.947 | 627 | 0.0016 | 6 | 642 | 0.00156 | |||
0.20*1.5 | 0.285 | 4.982 | 494 | 0.00202 | 4.316 | 477 | 0.00209 | 3.956 | 418 | 0.00239 | 4 | 428 | 0.00234 | |||
0.20*2 | 0.38 | 3.737 | 371 | 0.0027 | 3.237 | 358 | 0.00279 | 2.974 | 313 | 0.00319 | 3 | 321 | 0.00312 | |||
0.20*3 | 0.57 | 2.491 | 247 | 0.00405 | 2.158 | 239 | 0.00419 | 1.982 | 209 | 0.00479 | 2 | 214 | 0.00467 | |||
0.40*0.6 | 0.228 | 6.228 | 618 | 0.00162 | 5.395 | 597 | 0.00618 | 4.781 | 522 | 0.00192 | 4.87 | 535 | 0.00187 | |||
0.40*0.8 | 0.304 | 4.671 | 463 | 0.00216 | 4.046 | 448 | 0.00223 | 3.586 | 392 | 0.00255 | 3.65 | 401 | 0.00249 | |||
0.40*1 | 0.38 | 3.737 | 371 | 0.0027 | 3.237 | 358 | 0.00279 | 2.974 | 313 | 0.00319 | 3 | 321 | 0.00312 | |||
0.40*1.5 | 0.57 | 2.491 | 247 | 0.00405 | 2.158 | 239 | 0.00419 | 1.982 | 209 | 0.00479 | 2 | 214 | 0.00467 | |||
0.40*2 | 0.76 | 1.686 | 185 | 0.0054 | 1.618 | 179 | 0.00559 | 1.487 | 157 | 0.00638 | 1.5 | 161 | 0.00623 | |||
0.40*3 | 1.14 | 1.246 | 124 | 0.00809 | 1.079 | 119 | 0.00838 | 0.991 | 104 | 0.00958 | 1 | 107 | 0.00935 | |||
0.40*4 | 1.52 | 0.9342 | 92.7 | 0.01079 | 0.809 | 90 | 0.0112 | 0.75 | 78.3 | 0.01277 | 0.757 | 80.2 | 0.0125 | |||
0.60*0.8 | 0.456 | 3.114 | 309 | 0.00324 | 2.697 | 298 | 0.00335 | 2.39 | 261 | 0.00383 | 2.43 | 267 | 0.00374 | |||
0.60*1 | 0.57 | 2.491 | 247 | 0.00405 | 2.158 | 239 | 0.00419 | 1.982 | 209 | 0.00479 | 2 | 214 | 0.00467 | |||
0.60*1.5 | 0.855 | 1.661 | 165 | 0.00607 | 1.439 | 159 | 0.00628 | 1.322 | 139 | 0.00718 | 1.33 | 143 | 0.00701 | |||
0.60*2 | 1.14 | 1.246 | 124 | 0.00809 | 1.079 | 119 | 0.00838 | 0.991 | 104 | 0.00958 | 1 | 107 | 0.00935 | |||
0.60*3 | 1.71 | 0.8304 | 82.4 | 0.01214 | 0.719 | 80 | 0.0126 | 0.661 | 69.6 | 0.01436 | 0.667 | 71.3 | 0.014 | |||
0.60*4 | 2.28 | 0.6228 | 61.8 | 0.01619 | 0.54 | 60 | 0.0168 | 0.5 | 52.2 | 0.01915 | 0.504 | 53.5 | 0.0187 | |||
0.8*1.0 | 0.76 | 1.868 | 185 | 0.0054 | 1.618 | 179 | 0.00559 | 1.487 | 157 | 0.0638 | 1.5 | 161 | 0.00623 | |||
0.8*1.5 | 1.14 | 1.246 | 124 | 0.00809 | 1.079 | 119 | 0.00838 | 0.991 | 104 | 0.00958 | 1 | 107 | 0.00935 | |||
0.8*2 | 1.52 | 0.9342 | 92.7 | 0.01079 | 0.8092 | 90 | 0.0112 | 0.743 | 78.3 | 0.01277 | 0.75 | 80.2 | 0.0125 | |||
0.8*3 | 2.28 | 0.6228 | 61.8 | 0.01619 | 0.54 | 60 | 0.0168 | 0.496 | 52.2 | 0.01915 | 0.5 | 53.5 | 0.0187 | |||
0.8*4 | 3.04 | 0.4671 | 46.3 | 0.02158 | 0.405 | 45 | 0.0223 | 0.375 | 39.2 | 0.02554 | 0.378 | 40.1 | 0.0249 | |||
1.0*1.5 | 1.425 | 0.9965 | 98.8 | 0.01012 | 0.863 | 95 | 0.0105 | 0.793 | 83.5 | 0.01197 | 0.8 | 85.6 | 0.0117 | |||
1.0*2 | 1.9 | 0.7474 | 74.1 | 0.01349 | 0.647 | 72 | 0.014 | 0.595 | 62.7 | 0.01596 | 0.6 | 64.2 | 0.0156 | |||
1.0*3 | 2.85 | 0.4982 | 49.4 | 0.02024 | 0.432 | 48 | 0.0209 | 0.396 | 41.8 | 0.02394 | 0.4 | 42.8 | 0.0234 | |||
1.0*4 | 3.8 | 0.3737 | 37.1 | 0.02698 | 0.324 | 36 | 0.0279 | 0.3 | 31.3 | 0.03192 | 0.303 | 32.1 | 0.0312 | |||
10*0.5 | 4.9 | 0.29 | 28.74 | 0.03479 | 0.251 | 27.76 | 0.03602 | 0.222 | 24.3 | 0.04116 | 0.2265 | 24.89 | 0.04018 | |||
10*0.8 | 7.84 | 0.1811 | 17.94 | 0.05566 | 0.1569 | 17.35 | 0.05762 | 0.139 | 15.18 | 0.06586 | 0.1416 | 15.56 | 0.06429 | |||
10*1 | 9.8 | 0.1449 | 14.37 | 0.06958 | 0.1255 | 13.88 | 0.07203 | 0.115 | 12.15 | 0.08232 | 0.1163 | 12.44 | 0.08036 | |||
10*1.2 | 11.76 | 0.1207 | 11.98 | 0.0835 | 0.1046 | 11.57 | 0.08644 | 0.0961 | 10.12 | 0.09878 | 0.0969 | 10.37 | 0.09643 | |||
10*1.5 | 14.7 | 0.0966 | 9.58 | 0.10437 | 0.0837 | 9.26 | 0.10805 | 0.0769 | 8.1 | 0.1235 | 0.0776 | 8.3 | 0.1205 | |||
10*2 | 19.6 | 0.0724 | 7.19 | 0.1392 | 0.0628 | 6.94 | 0.14406 | 0.0577 | 6.08 | 0.1646 | 0.0582 | 6.22 | 0.1607 | |||
15*0.8 | 11.76 | 0.1207 | 11.98 | 0.0835 | 0.1046 | 11.57 | 0.08644 | 0.0927 | 10.12 | 0.09878 | 0.0944 | 10.37 | 0.09643 | |||
15*1 | 14.7 | 0.0966 | 9.58 | 0.10437 | 0.0837 | 9.26 | 0.10805 | 0.0769 | 8.1 | 0.1235 | 0.0776 | 8.3 | 0.1205 | |||
15*1.2 | 17.64 | 0.0805 | 7.98 | 0.12524 | 0.0697 | 7.71 | 0.1297 | 0.0641 | 6.75 | 0.1482 | 0.0646 | 6.91 | 0.1446 | |||
15*1.5 | 22.05 | 0.0644 | 6.39 | 0.15656 | 0.0558 | 6.17 | 0.16207 | 0.0512 | 5.4 | 0.1852 | 0.0517 | 5.53 | 0.1808 | |||
15*2 | 29.4 | 0.0483 | 4.79 | 0.20874 | 0.0418 | 4.63 | 0.21609 | 0.0384 | 4.05 | 0.247 | 0.0388 | 4.15 | 0.2411 | |||
15*2.5 | 36.75 | 0.0386 | 3.83 | 0.26093 | 0.0335 | 3.7 | 0.27011 | 0.0307 | 3.24 | 0.3087 | 0.031 | 3.32 | 0.3014 | |||
20*0.8 | 15.68 | 0.0906 | 8.98 | 0.11133 | 0.0784 | 8.68 | 0.15525 | 0.0695 | 7.59 | 0.1317 | 0.0708 | 7.78 | 0.1286 | |||
20*1 | 19.6 | 0.0724 | 7.19 | 0.13916 | 0.0628 | 6.94 | 0.14406 | 0.0577 | 6.07 | 0.1646 | 0.0582 | 6.22 | 0.1607 | |||
20*1.2 | 23.52 | 0.0604 | 5.99 | 0.16699 | 0.0523 | 5.78 | 0.17287 | 0.048 | 5.06 | 0.1976 | 0.0485 | 5.18 | 0.1929 | |||
20*1.5 | 29.4 | 0.0483 | 4.79 | 0.20874 | 0.0418 | 4.63 | 0.21609 | 0.0384 | 4.05 | 0.247 | 0.0388 | 0.2411 | ||||
20*2 | 39.2 | 0.0362 | 3.59 | 0.27832 | 0.0314 | 3.47 | 0.28812 | 0.0288 | 3.04 | 0.3293 | 0.0291 | 3.11 | 0.3214 | |||
20*2.5 | 49 | 0.029 | 2.87 | 0.3479 | 0.0251 | 2.78 | 0.36015 | 0.0231 | 2.43 | 0.4116 | 0.0233 | 2.49 | 0.4018 | |||
20*3 | 58.8 | 0.0241 | 2.4 | 0.41748 | 0.0209 | 2.31 | 0.43218 | 0.0192 | 2.02 | 0.4939 | 0.0194 | 2.07 | 0.4822 | |||
25*1.0 | 24.5 | 0.058 | 5.75 | 0.17395 | 0.0502 | 5.55 | 0.18008 | 0.0461 | 4.86 | 0.2058 | 0.0465 | 4.98 | 0.2009 | |||
25*1.2 | 29.4 | 0.0483 | 4.79 | 0.20874 | 0.0418 | 4.63 | 0.21609 | 0.0384 | 4.05 | 0.247 | 0.0388 | 4.15 | 0.2411 | |||
25*1.5 | 36.75 | 0.0386 | 3.83 | 0.26093 | 0.0335 | 3.7 | 0.27011 | 0.0307 | 3.24 | 0.3087 | 0.031 | 3.32 | 0.3014 | |||
25*2 | 49 | 0.029 | 2.87 | 0.3479 | 0.0251 | 2.78 | 0.36015 | 0.0231 | 2.43 | 0.4116 | 0.0233 | 2.49 | 0.4018 | |||
25*2.5 | 61.25 | 0.0232 | 2.3 | 0.43488 | 0.0201 | 2.22 | 0.45019 | 0.0184 | 1.94 | 0.5145 | 0.0186 | 1.99 | 0.5023 | |||
25*3 | 73.5 | 0.0193 | 1.92 | 0.52185 | 0.0167 | 1.85 | 0.54023 | 0.0154 | 1.62 | 0.6174 | 0.0155 | 1.66 | 0.6027 | |||
30*1.0 | 29.4 | 0.0483 | 4.79 | 0.20874 | 0.0418 | 4.63 | 0.21609 | 0.0384 | 4.05 | 0.247 | 0.0388 | 4.15 | 0.2411 | |||
30*1.2 | 35.28 | 0.0402 | 3.99 | 0.25049 | 0.0349 | 3.86 | 0.25931 | 0.032 | 3.37 | 0.2964 | 0.0323 | 3.46 | 0.2893 | |||
30*1.5 | 44.1 | 0.0322 | 3.19 | 0.31311 | 0.0279 | 3.09 | 0.32414 | 0.0256 | 2.7 | 0.3704 | 0.0259 | 2.77 | 0.3616 | |||
30*2 | 58.8 | 0.0241 | 2.4 | 0.41748 | 0.0209 | 2.31 | 0.43218 | 0.0192 | 2.02 | 0.4939 | 0.0194 | 2.07 | 0.4822 | |||
30*2.5 | 73.5 | 0.0193 | 1.92 | 0.52185 | 0.0167 | 1.85 | 0.54023 | 0.0154 | 1.62 | 0.6174 | 0.0155 | 1.66 | 0.6027 | |||
30*3 | 88.2 | 0.0161 | 1.6 | 0.62622 | 0.0139 | 1.54 | 0.64827 | 0.0128 | 1.35 | 0.7409 | 0.0129 | 1.38 | 0.7232 | |||
30*3.5 | 102.9 | 0.0138 | 1.37 | 0.73059 | 0.012 | 1.32 | 0.75623 | 0.0111 | 1.16 | 0.8644 | 0.0112 | 1.19 | 0.8438 | |||
35*1.0 | 34.3 | 0.0414 | 4.11 | 0.24353 | 0.0359 | 3.97 | 0.25211 | 0.0329 | 3.47 | 0.2881 | 0.0332 | 3.56 | 0.2813 | |||
35*1.2 | 41.16 | 0.0345 | 3.42 | 0.29224 | 0.0299 | 3.31 | 0.30253 | 0.0275 | 2.89 | 0.3457 | 0.0277 | 2.96 | 0.3375 | |||
35*1.5 | 51.45 | 0.0276 | 2.74 | 0.3653 | 0.0239 | 2.64 | 0.37816 | 0.022 | 2.31 | 0.4322 | 0.0222 | 2.37 | 0.4219 | |||
35*2 | 68.6 | 0.0207 | 2.05 | 0.48706 | 0.0179 | 1.98 | 0.50421 | 0.0165 | 1.74 | 0.5762 | 0.0166 | 1.78 | 0.5625 | |||
35*2.5 | 85.75 | 0.0166 | 1.64 | 0.60883 | 0.0143 | 1.59 | 0.63026 | 0.0132 | 1.39 | 0.7203 | 0.0133 | 1.42 | 0.7032 | |||
35*3 | 102.9 | 0.0138 | 1.37 | 0.73059 | 0.012 | 1.32 | 0.75632 | 0.011 | 1.16 | 0.8644 | 0.0111 | 1.19 | 0.8438 | |||
35*3.5 | 120.1 | 0.0118 | 1.17 | 0.85271 | 0.0102 | 1.13 | 0.88274 | 0.0095 | 0.99 | 1.0088 | 0.0096 | 1.02 | 0.9848 | |||
40*1.0 | 39.2 | 0.0362 | 3.59 | 0.27832 | 0.0314 | 3.47 | 0.28812 | 0.0288 | 3.04 | 0.3293 | 0.0291 | 3.11 | 0.3214 | |||
40*1.2 | 47.04 | 0.0302 | 2.99 | 0.33398 | 0.0261 | 2.89 | 0.34574 | 0.024 | 2.53 | 0.3951 | 0.0242 | 2.59 | 0.3857 | |||
40*1.5 | 58.8 | 0.0241 | 2.4 | 0.41748 | 0.0209 | 2.31 | 0.43218 | 0.0192 | 2.02 | 0.4939 | 0.0194 | 2.07 | 0.4822 | |||
40*2 | 78.4 | 0.0181 | 1.8 | 0.55664 | 0.0157 | 1.74 | 0.57624 | 0.0144 | 1.52 | 0.6586 | 0.0145 | 1.56 | 0.6429 | |||
40*2.5 | 98 | 0.0145 | 1.44 | 0.6958 | 0.0126 | 1.39 | 0.7203 | 0.0115 | 1.21 | 0.8232 | 0.0116 | 1.24 | 0.8036 | |||
40*3 | 117.6 | 0.0121 | 1.2 | 0.83496 | 0.0105 | 1.16 | 0.86436 | 0.0096 | 1.01 | 0.9878 | 0.0097 | 1.04 | 0.9643 | |||
40*3.5 | 137.2 | 0.0103 | 1.03 | 0.97412 | 0.009 | 0.99 | 1.00842 | 0.0083 | 0.87 | 1.1525 | 0.0084 | 0.89 | 1.125 | |||
40*4 | 156.8 | 0.0091 | 0.898 | 1.11328 | 0.0078 | 0.87 | 1.15248 | 0.0073 | 0.76 | 1.3171 | 0.0073 | 0.78 | 1.2858 |