NTC热敏电阻B值3950(温度系数对照表)


分类:电子,单片机 作者:myerob 标签:NTC 热敏电阻 3950 阅读:1524 收藏
导读:
B值是热敏电阻器的材料常数,即热敏电阻器的芯片(一种半导体陶瓷)在经过高温烧结后,形成具有一定电阻率的材料,每种配方和烧结温度下只有一个B值,所以称之为材料常数。 B值可以通过测量在25℃和…

B值是热敏电阻器的材料常数,即热敏电阻器的芯片(一种半导体陶瓷)在经过高温烧结后,形成具有一定电阻率的材料,每种配方和烧结温度下只有一个B值,所以称之为材料常数。
 
B值可以通过测量在25℃和50℃(或85℃)时的电阻值后进行计算。B值与产品电阻温度系数正相关,也就是说B值越大,其电阻温度系数也就越大。
 
温度系数就是指温度每升高1℃,电阻值的变化率。采用以下公式可以将B值换算成电阻温度系数:
        电阻温度系数=B值/T^2     (T为要换算的点绝对温度值)
 
RT表即为平常所说的NTC热敏电阻RT关系表,主要反映NTC在不同温度所对应的不同电阻值,其正确的参数在软件开发中有非常重要的作用。
 
下面我们来看看B= 3950NTC热敏电阻和温度的关系
 
标称阻值:10k kΩ 25℃;公差精度: ±1%
B值 :3950K  25/50℃;B值精度:± 1%              
 

Temp.RmaxRnorRmin
(deg. C)(k Ohms)(k Ohms)(k Ohms)
-30184.3727177.3726170.6211
-29173.1351166.6654160.4213
-28162.6553156.674150.8976
-27152.8776147.3463142.0008
-26143.7506138.6339133.686
-25135.227130.4927125.9115
-24127.2633122.8816118.6389
-23119.8193115.763111.8328
-22112.8579109.1019105.4603
-21106.345102.866399.4914
-20100.24997.026493.8979
-1994.540791.554788.6541
-1889.193186.425883.736
-1784.181381.616379.1214
-1679.482377.104374.7899
-1575.074772.869770.7223
-1470.938768.893766.9011
-1367.055965.159263.3099
-1263.409561.6559.9334
-1159.983658.351356.7577
-1056.763655.249153.7697
-953.73652.330750.9571
-850.888249.584148.3086
-748.208546.998245.8137
-645.68644.562743.4627
-543.310542.26841.2465
-441.072740.105239.1565
-338.963938.065837.1848
-236.975836.142335.3241
-135.100934.327433.5675
033.332132.614231.9086
131.662830.996630.3415
230.086929.468828.8605
328.598628.025127.4604
427.192526.660626.1364
525.863825.370424.8839
624.607624.150123.6987
723.419722.995522.5768
822.295921.902821.5144
921.232520.868220.5081
1020.225919.888419.5546
1119.272718.960218.6509
1218.369918.080617.7941
1317.514417.246716.9815
1416.703616.456116.2106
1515.934915.706115.479
1615.205914.994514.7845
1714.514314.319114.1251
1813.85813.677913.4988
1913.23513.06912.9037
2012.643512.490512.3381
2112.081711.940911.8005
2211.547911.418411.2893
2311.040710.921710.803
2410.558510.449410.3403
2510.1109.9
269.67249.57249.4725
279.26519.16549.0659
288.87738.77798.6788
298.50788.40898.3104
308.15568.05747.9597
317.81997.72257.6256
327.49997.40337.3073
337.19467.0997.004
346.90346.80886.7149
356.62556.53216.4393
366.36036.2686.1764
376.10716.0165.9257
385.86545.77555.6865
395.63445.54595.4581
405.41385.32665.2402
415.2035.11715.0321
425.00154.91694.8333
434.80884.72574.6435
444.62464.54284.462
454.44844.3684.2886
464.27984.20084.1229
474.11844.04093.9644
483.9643.88783.8128
493.81623.74143.6678
503.67463.60123.529
513.5393.4673.3962
523.40913.33853.2691
533.28463.21543.1474
543.16533.09753.0308
553.0512.98452.9191
562.94132.87622.8121
572.83622.77232.7096
582.73532.67272.6113
592.63852.57722.5171
602.54572.48562.4268
612.45662.39772.3401
622.3712.31342.257
632.28882.23242.1772
642.20992.15472.1007
652.13412.08012.0272
662.06132.00841.9567
671.99131.93961.8889
681.92411.87341.8239
691.85941.80981.7614
701.79731.74871.7013
711.73751.691.6436
721.681.63351.5881
731.62471.57921.5348
741.57151.52691.4835
751.52021.47671.4342
761.47091.42831.3868
771.42351.38181.3411
781.37781.33691.2972
791.33371.29381.2549
801.29131.25231.2143
811.25051.21231.1751
821.21111.17371.1374
831.17321.13661.101
841.13661.10081.066
851.10141.06631.0323
861.06741.03310.9998
871.03461.00110.9685
881.0030.97020.9383
890.97250.94040.9092
900.94310.91160.8812
910.91470.88390.8541
920.88730.85720.828
930.86080.83140.8028
940.83530.80640.7785
950.81060.78240.7551
960.78680.75920.7324
970.76380.73670.7106
980.74150.71510.6895
990.72010.69420.6691
1000.69930.67390.6495
1010.67920.65440.6304
1020.65980.63550.6121
1030.64110.61730.5943
1040.6230.59970.5772
1050.60540.58260.5606
1060.58850.56610.5446
1070.57210.55020.5291
1080.55620.53480.5142
1090.54080.51990.4997
1100.5260.50540.4857
1110.51160.49150.4721
1120.49760.4780.459
1130.48420.46490.4463
1140.47110.45220.434
1150.45840.43990.4222
1160.44620.42810.4107
1170.43430.41660.3995
1180.42280.40540.3887
1190.41170.39470.3783
1200.40090.38420.3682
1210.39040.37410.3584
1220.38030.36430.3489
1230.37050.35470.3397
1240.36090.34550.3307
1250.35170.33660.3221
1260.34270.32790.3137
1270.3340.31950.3056
1280.32560.31140.2977
1290.31740.30340.2901
1300.30940.29580.2827
1310.30170.28830.2755
1320.29420.28110.2685
1330.2870.27410.2618
1340.27990.26730.2552
1350.27310.26070.2488
1360.26640.25430.2427
1370.260.2480.2367
1380.25370.2420.2308
1390.24760.23610.2252
1400.24170.23040.2197
1410.23590.22490.2144
1420.23030.21950.2092
1430.22490.21430.2041
1440.21960.20920.1993
1450.21450.20430.1945
1460.20950.19950.1899
1470.20460.19480.1854
1480.19990.19030.181
1490.19530.18590.1768
1500.19090.18160.1727
1510.18650.17740.1687
1520.18230.17330.1648
1530.17820.16940.161
1540.17420.16560.1573
1550.17030.16180.1537
1560.16650.15820.1502
1570.16280.15470.1469
1580.15930.15120.1436
1590.15580.14790.1403
1600.15240.14460.1372
1610.14910.14140.1342
1620.14580.13830.1312
1630.14270.13530.1283
1640.13960.13240.1255
1650.13660.12950.1228
1660.13370.12680.1201
1670.13090.12410.1175
1680.12820.12140.115
1690.12550.11880.1126
1700.12280.11630.1102
1710.12030.11390.1078
1720.11780.11150.1055
1730.11540.10920.1033
1740.1130.10690.1012
1750.11070.10470.0991
1760.10850.10260.097
1770.10630.10050.095
1780.10410.09840.0931
1790.1020.09640.0912
1800.10.09450.0893
1810.0980.09260.0875
1820.09610.09080.0857
1830.09420.0890.084
1840.09230.08720.0823
1850.09050.08550.0807
1860.08880.08380.0791
1870.08710.08220.0775
1880.08540.08060.076
1890.08370.0790.0745
1900.08220.07750.0731
1910.08060.0760.0716
1920.07910.07450.0703
1930.07760.07310.0689
1940.07610.07170.0676
1950.07470.07040.0663
1960.07330.06910.0651
1970.0720.06780.0638
1980.07060.06650.0626
1990.06930.06530.0615
2000.06810.06410.0603
2010.06680.06290.0592
2020.06560.06180.0581
2030.06440.06060.057
2040.06330.05950.056
2050.06220.05850.055
2060.06110.05740.054
2070.060.05640.053
2080.05890.05540.0521
2090.05790.05440.0511
2100.05690.05350.0502
2110.05590.05250.0493
2120.05490.05160.0485
2130.0540.05070.0476
2140.05310.04980.0468
2150.05220.0490.046
2160.05130.04810.0452
2170.05040.04730.0444
2180.04960.04650.0436
2190.04870.04570.0429
2200.04790.04490.0422
2210.04710.04420.0414
2220.04630.04350.0407
2230.04560.04270.0401
2240.04480.0420.0394
2250.04410.04130.0387
2260.04340.04070.0381
2270.04270.040.0375
2280.0420.03930.0369
2290.04130.03870.0362
2300.04070.03810.0357
2310.040.03750.0351
2320.03940.03690.0345
2330.03880.03630.034
2340.03820.03570.0334
2350.03760.03520.0329
2360.0370.03460.0324
2370.03640.03410.0319
2380.03590.03350.0314
2390.03530.0330.0309
2400.03480.03250.0304
2410.03420.0320.0299
2420.03370.03150.0295
2430.03320.0310.029
2440.03270.03060.0286
2450.03220.03010.0281
2460.03180.02970.0277
2470.03130.02920.0273
2480.03080.02880.0269
2490.03040.02840.0265
2500.02990.0280.0261
2510.02950.02750.0257
2520.02910.02710.0253
2530.02870.02680.025
2540.02830.02640.0246
2550.02790.0260.0242
2560.02750.02560.0239
2570.02710.02530.0236
2580.02670.02490.0232
2590.02630.02450.0229
2600.0260.02420.0226
2610.02560.02390.0222
2620.02530.02350.0219
2630.02490.02320.0216
2640.02460.02290.0213
2650.02420.02260.021
2660.02390.02230.0207
2670.02360.0220.0205
2680.02330.02170.0202
2690.0230.02140.0199
2700.02270.02110.0196
2710.02240.02080.0194
2720.02210.02050.0191
2730.02180.02030.0189
2740.02150.020.0186
2750.02120.01970.0184
2760.0210.01950.0181
2770.02070.01920.0179
2780.02040.0190.0177
2790.02020.01870.0174
2800.01990.01850.0172
2810.01970.01830.017
2820.01940.0180.0168
2830.01920.01780.0166
2840.01890.01760.0163
2850.01870.01740.0161
2860.01850.01720.0159
2870.01820.0170.0157
2880.0180.01670.0156
2890.01780.01650.0154
2900.01760.01630.0152
2910.01740.01610.015
2920.01720.01590.0148
2930.0170.01580.0146
2940.01680.01560.0145
2950.01660.01540.0143
2960.01640.01520.0141
2970.01620.0150.0139
2980.0160.01490.0138
2990.01580.01470.0136
3000.01560.01450.0135

 


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