NTC 10k β3988 thermistor chart: resistance table (°F)
Resistance in ohms of an NTC thermistor with R₂₅ = 10kΩ and β = 3988 K, calculated with the Beta model from -40 °F to 257 °F. Real parts follow their manufacturer’s R/T table, which can differ from the Beta model by a few percent far from 25 °C; use these values for design estimates and check critical points against the datasheet.
Each row is a 10-degree step; the column adds the units digit (subtracts it in rows below zero). Example: 100 + 5 → 105 °F.
| °F | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
|---|---|---|---|---|---|---|---|---|---|---|
| -40 | 416400 | |||||||||
| -30 | 279650 | 290770 | 302380 | 314510 | 327190 | 340440 | 354300 | 368790 | 383950 | 399800 |
| -20 | 191250 | 198500 | 206060 | 213950 | 222170 | 230760 | 239710 | 249060 | 258820 | 269010 |
| -10 | 133020 | 137830 | 142850 | 148070 | 153510 | 159170 | 165070 | 171210 | 177620 | 184290 |
| -0 | 93990 | 97245 | 100630 | 104140 | 107800 | 111600 | 115550 | 119660 | 123940 | 128390 |
| 0 | 93990 | 90857 | 87842 | 84939 | 82144 | 79452 | 76859 | 74362 | 71956 | 69637 |
| 10 | 67403 | 65249 | 63173 | 61172 | 59241 | 57380 | 55584 | 53852 | 52181 | 50568 |
| 20 | 49012 | 47509 | 46059 | 44658 | 43306 | 42000 | 40739 | 39520 | 38342 | 37205 |
| 30 | 36105 | 35042 | 34015 | 33022 | 32061 | 31133 | 30234 | 29366 | 28525 | 27712 |
| 40 | 26925 | 26163 | 25426 | 24713 | 24022 | 23353 | 22705 | 22078 | 21470 | 20882 |
| 50 | 20311 | 19759 | 19223 | 18704 | 18201 | 17714 | 17241 | 16783 | 16338 | 15907 |
| 60 | 15489 | 15084 | 14690 | 14309 | 13938 | 13579 | 13230 | 12891 | 12563 | 12243 |
| 70 | 11934 | 11633 | 11340 | 11057 | 10781 | 10513 | 10253 | 10000 | 9754.3 | 9515.5 |
| 80 | 9283.4 | 9057.8 | 8838.5 | 8625.3 | 8417.9 | 8216.3 | 8020.3 | 7829.6 | 7644.1 | 7463.6 |
| 90 | 7288.1 | 7117.3 | 6951.1 | 6789.3 | 6631.9 | 6478.7 | 6329.5 | 6184.3 | 6043 | 5905.3 |
| 100 | 5771.3 | 5640.8 | 5513.6 | 5389.8 | 5269.2 | 5151.7 | 5037.2 | 4925.7 | 4817 | 4711 |
| 110 | 4607.8 | 4507.2 | 4409.1 | 4313.4 | 4220.2 | 4129.3 | 4040.7 | 3954.2 | 3869.9 | 3787.7 |
| 120 | 3707.5 | 3629.3 | 3553 | 3478.5 | 3405.9 | 3335 | 3265.8 | 3198.3 | 3132.4 | 3068 |
| 130 | 3005.2 | 2943.9 | 2884.1 | 2825.6 | 2768.6 | 2712.9 | 2658.4 | 2605.3 | 2553.4 | 2502.6 |
| 140 | 2453.1 | 2404.7 | 2357.4 | 2311.2 | 2266 | 2221.9 | 2178.8 | 2136.6 | 2095.4 | 2055.2 |
| 150 | 2015.8 | 1977.3 | 1939.6 | 1902.8 | 1866.9 | 1831.7 | 1797.3 | 1763.6 | 1730.7 | 1698.5 |
| 160 | 1667 | 1636.1 | 1606 | 1576.5 | 1547.6 | 1519.3 | 1491.7 | 1464.6 | 1438.1 | 1412.2 |
| 170 | 1386.8 | 1362 | 1337.7 | 1313.9 | 1290.5 | 1267.7 | 1245.4 | 1223.5 | 1202 | 1181 |
| 180 | 1160.4 | 1140.3 | 1120.6 | 1101.2 | 1082.3 | 1063.7 | 1045.5 | 1027.7 | 1010.2 | 993.13 |
| 190 | 976.35 | 959.91 | 943.8 | 928 | 912.52 | 897.34 | 882.46 | 867.87 | 853.56 | 839.54 |
| 200 | 825.78 | 812.29 | 799.06 | 786.08 | 773.36 | 760.87 | 748.63 | 736.62 | 724.83 | 713.27 |
| 210 | 701.93 | 690.8 | 679.88 | 669.16 | 658.65 | 648.32 | 638.2 | 628.25 | 618.5 | 608.92 |
| 220 | 599.51 | 590.28 | 581.22 | 572.32 | 563.59 | 555.01 | 546.59 | 538.32 | 530.2 | 522.22 |
| 230 | 514.39 | 506.69 | 499.14 | 491.72 | 484.42 | 477.26 | 470.22 | 463.31 | 456.52 | 449.84 |
| 240 | 443.29 | 436.84 | 430.51 | 424.29 | 418.17 | 412.16 | 406.26 | 400.45 | 394.74 | 389.13 |
| 250 | 383.62 | 378.2 | 372.87 | 367.63 | 362.47 | 357.41 | 352.43 | 347.53 |
Sourcing NTC probes or epoxy-bead thermistors with a specific R₂₅ and β?
Request samples from SensorSpan