NTC 10k β3950 resistance table (°F)
Resistance in ohms of an NTC thermistor with R₂₅ = 10kΩ and β = 3950 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 | 401860 | |||||||||
| -30 | 270910 | 281580 | 292710 | 304340 | 316490 | 329190 | 342460 | 356330 | 370830 | 386000 |
| -20 | 185940 | 192930 | 200200 | 207790 | 215700 | 223960 | 232570 | 241550 | 250920 | 260700 |
| -10 | 129780 | 134430 | 139280 | 144320 | 149560 | 155030 | 160720 | 166640 | 172810 | 179240 |
| -0 | 92005 | 95160 | 98438 | 101840 | 105380 | 109060 | 112890 | 116870 | 121000 | 125300 |
| 0 | 92005 | 88967 | 86042 | 83225 | 80512 | 77898 | 75380 | 72954 | 70615 | 68361 |
| 10 | 66189 | 64094 | 62073 | 60125 | 58246 | 56433 | 54683 | 52995 | 51366 | 49793 |
| 20 | 48275 | 46809 | 45393 | 44026 | 42705 | 41430 | 40197 | 39006 | 37855 | 36742 |
| 30 | 35666 | 34626 | 33621 | 32648 | 31708 | 30798 | 29917 | 29066 | 28242 | 27444 |
| 40 | 26672 | 25925 | 25201 | 24500 | 23822 | 23165 | 22528 | 21912 | 21314 | 20736 |
| 50 | 20175 | 19631 | 19104 | 18593 | 18098 | 17618 | 17152 | 16700 | 16262 | 15837 |
| 60 | 15425 | 15025 | 14637 | 14260 | 13894 | 13539 | 13195 | 12860 | 12535 | 12220 |
| 70 | 11914 | 11616 | 11327 | 11046 | 10773 | 10508 | 10250 | 10000 | 9756.6 | 9520 |
| 80 | 9290 | 9066.4 | 8848.9 | 8637.4 | 8431.8 | 8231.7 | 8037.1 | 7847.8 | 7663.7 | 7484.5 |
| 90 | 7310.1 | 7140.4 | 6975.2 | 6814.4 | 6657.9 | 6505.5 | 6357.2 | 6212.7 | 6072 | 5935 |
| 100 | 5801.6 | 5671.6 | 5545 | 5421.7 | 5301.5 | 5184.4 | 5070.2 | 4959 | 4850.6 | 4744.9 |
| 110 | 4641.9 | 4541.5 | 4443.6 | 4348.1 | 4255 | 4164.3 | 4075.7 | 3989.4 | 3905.1 | 3822.9 |
| 120 | 3742.7 | 3664.5 | 3588.2 | 3513.7 | 3441 | 3370 | 3300.8 | 3233.2 | 3167.2 | 3102.8 |
| 130 | 3039.9 | 2978.4 | 2918.5 | 2859.9 | 2802.7 | 2746.8 | 2692.2 | 2638.9 | 2586.8 | 2535.9 |
| 140 | 2486.2 | 2437.6 | 2390.1 | 2343.7 | 2298.3 | 2254 | 2210.6 | 2168.3 | 2126.9 | 2086.4 |
| 150 | 2046.8 | 2008.1 | 1970.2 | 1933.2 | 1897 | 1861.5 | 1826.9 | 1793 | 1759.8 | 1727.4 |
| 160 | 1695.7 | 1664.6 | 1634.2 | 1604.5 | 1575.4 | 1546.9 | 1519 | 1491.7 | 1465 | 1438.8 |
| 170 | 1413.2 | 1388.1 | 1363.6 | 1339.5 | 1316 | 1292.9 | 1270.3 | 1248.2 | 1226.5 | 1205.3 |
| 180 | 1184.5 | 1164.1 | 1144.2 | 1124.6 | 1105.5 | 1086.7 | 1068.3 | 1050.2 | 1032.6 | 1015.2 |
| 190 | 998.24 | 981.59 | 965.27 | 949.27 | 933.58 | 918.19 | 903.11 | 888.32 | 873.81 | 859.59 |
| 200 | 845.64 | 831.95 | 818.53 | 805.37 | 792.45 | 779.78 | 767.35 | 755.15 | 743.19 | 731.45 |
| 210 | 719.92 | 708.62 | 697.52 | 686.63 | 675.94 | 665.45 | 655.15 | 645.04 | 635.12 | 625.37 |
| 220 | 615.81 | 606.42 | 597.19 | 588.14 | 579.25 | 570.52 | 561.94 | 553.52 | 545.25 | 537.12 |
| 230 | 529.14 | 521.3 | 513.6 | 506.03 | 498.6 | 491.3 | 484.12 | 477.07 | 470.14 | 463.34 |
| 240 | 456.65 | 450.07 | 443.61 | 437.26 | 431.02 | 424.88 | 418.85 | 412.92 | 407.09 | 401.36 |
| 250 | 395.72 | 390.18 | 384.74 | 379.38 | 374.11 | 368.94 | 363.84 | 358.83 |
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