負(fù)溫度系數(shù)NTC熱敏電阻器零功率電阻值R25=6.8KΩ±3% B常數(shù)=3950精度允許偏差1%，選擇NTC溫度傳感器時必須考慮它的耗散常數(shù)、 熱時間常數(shù)、 電阻值、 電阻-溫度曲線和公差，遑論的最重要因素，由于電阻和溫度 （R-T 曲線） 之間的關(guān)系是高度非線性的某些近似已用于實(shí)際系統(tǒng)設(shè)計(jì)。
TEMPERATURE VS RESISTANCE TABLE
Resistance 6.8k Ohms at 25deg. C
Resistance Tolerance + / - 3%
B Value 3950K at 25/50 deg. C
B Value Tolerance + / - 1%
Temp.
(deg. C) |
Rmax
(k Ohms) |
Rnor
(k Ohms) |
Rmin
(k Ohms) |
|
-30 |
129.2351 |
121.9013 |
114.8801 |
|
-29 |
121.3292 |
114.5156 |
107.9874 |
|
-28 |
113.9583 |
107.6254 |
101.5529 |
|
-27 |
107.0828 |
101.1943 |
95.5435 |
|
-26 |
100.6664 |
95.1890 |
89.9285 |
|
-25 |
94.6756 |
89.5786 |
84.6796 |
|
-24 |
89.0797 |
84.3347 |
79.7707 |
|
-23 |
83.8501 |
79.4313 |
75.1776 |
|
-22 |
78.9607 |
74.8441 |
70.8782 |
|
-21 |
74.3874 |
70.5508 |
66.8519 |
|
-20 |
70.1078 |
66.5309 |
63.0798 |
|
-19 |
66.1012 |
62.7654 |
59.5442 |
|
-18 |
62.3487 |
59.2365 |
56.2290 |
|
-17 |
58.8326 |
55.9280 |
53.1190 |
|
-16 |
55.5366 |
52.8249 |
50.2004 |
|
-15 |
52.4457 |
49.9132 |
47.4603 |
|
-14 |
49.5459 |
47.1800 |
44.8866 |
|
-13 |
46.8242 |
44.6132 |
42.4684 |
|
-12 |
44.2687 |
42.2019 |
40.1953 |
|
-11 |
41.8683 |
39.9356 |
38.0577 |
|
-10 |
39.6127 |
37.8048 |
36.0469 |
|
-9 |
37.4922 |
35.8006 |
34.1545 |
|
-8 |
35.4981 |
33.9148 |
32.3730 |
|
-7 |
33.6221 |
32.1397 |
30.6951 |
|
-6 |
31.8565 |
30.4682 |
29.1142 |
|
-5 |
30.1941 |
28.8936 |
27.6243 |
|
-4 |
28.6284 |
27.4098 |
26.2195 |
|
-3 |
27.1532 |
26.0111 |
24.8945 |
|
-2 |
25.7628 |
24.6920 |
23.6443 |
|
-1 |
24.4518 |
23.4476 |
22.4643 |
|
0 |
23.2152 |
22.2732 |
21.3502 |
|
1 |
22.0484 |
21.1645 |
20.2978 |
|
2 |
20.9471 |
20.1176 |
19.3035 |
|
3 |
19.9072 |
19.1285 |
18.3637 |
|
4 |
18.9250 |
18.1938 |
17.4752 |
|
5 |
17.9969 |
17.3102 |
16.6347 |
|
6 |
17.1197 |
16.4746 |
15.8396 |
|
7 |
16.2903 |
15.6842 |
15.0871 |
|
8 |
15.5059 |
14.9362 |
14.3746 |
|
9 |
14.7637 |
14.2282 |
13.6999 |
|
10 |
14.0612 |
13.5578 |
13.0606 |
|
11 |
13.3962 |
12.9228 |
12.4549 |
|
12 |
12.7664 |
12.3211 |
11.8807 |
|
13 |
12.1698 |
11.7509 |
11.3362 |
|
14 |
11.6044 |
11.2103 |
10.8197 |
|
15 |
11.0685 |
10.6975 |
10.3297 |
|
16 |
10.5603 |
10.2112 |
9.8646 |
|
17 |
10.0783 |
9.7496 |
9.4231 |
|
18 |
9.6210 |
9.3115 |
9.0038 |
|
19 |
9.1870 |
8.8955 |
8.6055 |
|
20 |
8.7749 |
8.5004 |
8.2270 |
|
21 |
8.3836 |
8.1250 |
7.8672 |
|
22 |
8.0120 |
7.7682 |
7.5252 |
|
23 |
7.6588 |
7.4291 |
7.1999 |
|
24 |
7.3231 |
7.1067 |
6.8905 |
|
25 |
7.0040 |
6.8000 |
6.5960 |
|
26 |
6.7064 |
6.5082 |
6.3102 |
|
27 |
6.4231 |
6.2305 |
6.0383 |
|
28 |
6.1532 |
5.9662 |
5.7797 |
|
29 |
5.8962 |
5.7145 |
5.5335 |
|
30 |
5.6513 |
5.4748 |
5.2991 |
|
31 |
5.4179 |
5.2465 |
5.0759 |
|
32 |
5.1954 |
5.0288 |
4.8633 |
|
33 |
4.9832 |
4.8214 |
4.6607 |
|
34 |
4.7808 |
4.6236 |
4.4677 |
|
35 |
4.5877 |
4.4350 |
4.2836 |
|
36 |
4.4034 |
4.2551 |
4.1082 |
|
37 |
4.2275 |
4.0835 |
3.9408 |
|
38 |
4.0595 |
3.9197 |
3.7812 |
|
39 |
3.8992 |
3.7633 |
3.6288 |
|
40 |
3.7460 |
3.6139 |
3.4834 |
|
41 |
3.5996 |
3.4713 |
3.3446 |
|
42 |
3.4597 |
3.3351 |
3.2120 |
|
43 |
3.3259 |
3.2049 |
3.0854 |
|
44 |
3.1981 |
3.0804 |
2.9645 |
|
45 |
3.0758 |
2.9615 |
2.8489 |
|
46 |
2.9588 |
2.8477 |
2.7384 |
|
47 |
2.8469 |
2.7389 |
2.6327 |
|
48 |
2.7398 |
2.6349 |
2.5317 |
|
49 |
2.6372 |
2.5353 |
2.4351 |
|
50 |
2.5391 |
2.4400 |
2.3426 |
|
51 |
2.4450 |
2.3487 |
2.2542 |
|
52 |
2.3550 |
2.2614 |
2.1695 |
|
53 |
2.2687 |
2.1777 |
2.0884 |
|
54 |
2.1860 |
2.0975 |
2.0108 |
|
55 |
2.1068 |
2.0207 |
1.9365 |
|
56 |
2.0308 |
1.9472 |
1.8653 |
|
57 |
1.9580 |
1.8766 |
1.7970 |
|
58 |
1.8881 |
1.8090 |
1.7316 |
|
59 |
1.8211 |
1.7441 |
1.6689 |
|
60 |
1.7567 |
1.6819 |
1.6088 |
|
61 |
1.6950 |
1.6222 |
1.5512 |
|
62 |
1.6358 |
1.5650 |
1.4959 |
|
63 |
1.5789 |
1.5100 |
1.4428 |
|
64 |
1.5243 |
1.4573 |
1.3919 |
|
65 |
1.4718 |
1.4066 |
1.3431 |
|
66 |
1.4214 |
1.3580 |
1.2962 |
|
67 |
1.3730 |
1.3113 |
1.2512 |
|
68 |
1.3265 |
1.2664 |
1.2079 |
|
69 |
1.2818 |
1.2233 |
1.1664 |
|
70 |
1.2388 |
1.1818 |
1.1265 |
|
71 |
1.1974 |
1.1420 |
1.0882 |
|
72 |
1.1577 |
1.1037 |
1.0513 |
|
73 |
1.1194 |
1.0669 |
1.0159 |
|
74 |
1.0826 |
1.0315 |
0.9818 |
|
75 |
1.0472 |
0.9974 |
0.9491 |
|
76 |
1.0131 |
0.9646 |
0.9176 |
|
77 |
0.9803 |
0.9331 |
0.8873 |
|
78 |
0.9487 |
0.9027 |
0.8581 |
|
79 |
0.9183 |
0.8735 |
0.8301 |
|
80 |
0.8890 |
0.8453 |
0.8031 |
|
81 |
0.8608 |
0.8182 |
0.7771 |
|
82 |
0.8336 |
0.7921 |
0.7520 |
|
83 |
0.8074 |
0.7670 |
0.7279 |
|
84 |
0.7822 |
0.7428 |
0.7047 |
|
85 |
0.7579 |
0.7194 |
0.6824 |
|
86 |
0.7344 |
0.6969 |
0.6608 |
|
87 |
0.7118 |
0.6752 |
0.6400 |
|
88 |
0.6899 |
0.6543 |
0.6200 |
|
89 |
0.6689 |
0.6342 |
0.6007 |
|
90 |
0.6486 |
0.6147 |
0.5821 |
|
91 |
0.6290 |
0.5960 |
0.5642 |
|
92 |
0.6101 |
0.5779 |
0.5469 |
|
93 |
0.5918 |
0.5604 |
0.5302 |
|
94 |
0.5742 |
0.5436 |
0.5141 |
|
95 |
0.5572 |
0.5273 |
0.4986 |
|
96 |
0.5407 |
0.5116 |
0.4836 |
|
97 |
0.5249 |
0.4964 |
0.4691 |
|
98 |
0.5095 |
0.4818 |
0.4551 |
|
99 |
0.4947 |
0.4676 |
0.4416 |
|
100 |
0.4804 |
0.4540 |
0.4286 |
|
101 |
0.4666 |
0.4408 |
0.4160 |
|
102 |
0.4532 |
0.4280 |
0.4039 |
|
103 |
0.4403 |
0.4157 |
0.3970 |
|
104 |
0.4278 |
0.4038 |
0.3270 |
|
105 |
0.4157 |
0.3923 |
0.3698 |
|
106 |
0.4040 |
0.3811 |
0.3592 |
|
107 |
0.3990 |
0.3704 |
0.3435 |
|
108 |
0.3830 |
0.3600 |
0.3380 |
|
109 |
0.3920 |
0.3977 |
0.3935 |
|
110 |
0.3600 |
0.3401 |
0.3470 |
|
111 |
0.3700 |
0.3370 |
0.3375 |
|
112 |
0.3415 |
0.3216 |
0.3026 |
|
113 |
0.3322 |
0.3127 |
0.2942 |
|
114 |
0.3232 |
0.3042 |
0.2860 |
|
115 |
0.3145 |
0.2959 |
0.2782 |
|
116 |
0.3061 |
0.2879 |
0.2706 |
|
117 |
0.2979 |
0.2802 |
0.2632 |
|
118 |
0.2900 |
0.2726 |
0.2561 |
|
119 |
0.2823 |
0.2654 |
0.2492 |
|
120 |
0.2749 |
0.2583 |
0.2425 |
|
121 |
0.2677 |
0.2515 |
0.2360 |
|
122 |
0.2607 |
0.2449 |
0.2297 |
|
123 |
0.2540 |
0.2384 |
0.2237 |
|
124 |
0.2474 |
0.2322 |
0.2178 |
|
125 |
0.2410 |
0.2262 |
0.2121 |
|
126 |
0.2349 |
0.2203 |
0.2065 |
|
127 |
0.2289 |
0.2147 |
0.2012 |
|
128 |
0.2231 |
0.2092 |
0.1960 |
|
129 |
0.2175 |
0.2039 |
0.1909 |
|
130 |
0.2120 |
0.1987 |
0.1860 |
|
131 |
0.2067 |
0.1937 |
0.1813 |
|
132 |
0.2016 |
0.1888 |
0.1767 |
|
133 |
0.1966 |
0.1841 |
0.1722 |
|
134 |
0.1917 |
0.1795 |
0.1679 |
|
135 |
0.1870 |
0.1750 |
0.1637 |
|
136 |
0.1824 |
0.1707 |
0.1596 |
|
137 |
0.1780 |
0.1665 |
0.1556 |
|
138 |
0.1737 |
0.1625 |
0.1518 |
|
139 |
0.1695 |
0.1585 |
0.1481 |
|
140 |
0.1654 |
0.1547 |
0.1444 |
|
141 |
0.1615 |
0.1509 |
0.1409 |
|
142 |
0.1577 |
0.1473 |
0.1375 |
|
143 |
0.1539 |
0.1438 |
0.1342 |
|
144 |
0.1503 |
0.1404 |
0.1310 |
|
145 |
0.1468 |
0.1370 |
0.1278 |
|
146 |
0.1433 |
0.1338 |
0.1248 |
|
147 |
0.1400 |
0.1307 |
0.1218 |
|
148 |
0.1368 |
0.1276 |
0.1190 |
|
149 |
0.1336 |
0.1246 |
0.1162 |
|
150 |
0.1306 |
0.1218 |
0.1135 |
|
151 |
0.1276 |
0.1190 |
0.1108 |
|
152 |
0.1247 |
0.1162 |
0.1082 |
|
153 |
0.1219 |
0.1136 |
0.1057 |
|
154 |
0.1191 |
0.1110 |
0.1033 |
|
155 |
0.1165 |
0.1085 |
0.1010 |
|
156 |
0.1139 |
0.1060 |
0.0987 |
|
157 |
0.1113 |
0.1037 |
0.0964 |
|
158 |
0.1089 |
0.1013 |
0.0943 |
|
159 |
0.1065 |
0.0991 |
0.0921 |
|
160 |
0.1041 |
0.0969 |
0.0901 |
|
161 |
0.1019 |
0.0948 |
0.0881 |
|
162 |
0.0997 |
0.0927 |
0.0861 |
|
163 |
0.0975 |
0.0907 |
0.0842 |
|
164 |
0.0954 |
0.0887 |
0.0824 |
|
165 |
0.0934 |
0.0868 |
0.0806 |
|
166 |
0.0914 |
0.0849 |
0.0788 |
|
167 |
0.0894 |
0.0831 |
0.0771 |
|
168 |
0.0875 |
0.0813 |
0.0755 |
|
169 |
0.0857 |
0.0796 |
0.0738 |
|
170 |
0.0839 |
0.0779 |
0.0723 |
|
171 |
0.0822 |
0.0763 |
0.0707 |
|
172 |
0.0805 |
0.0747 |
0.0692 |
|
173 |
0.0788 |
0.0731 |
0.0678 |
|
174 |
0.0772 |
0.0716 |
0.0663 |
|
175 |
0.0756 |
0.0701 |
0.0650 |
|
176 |
0.0740 |
0.0687 |
0.0636 |
|
177 |
0.0725 |
0.0673 |
0.0623 |
|
178 |
0.0711 |
0.0659 |
0.0610 |
|
179 |
0.0696 |
0.0645 |
0.0598 |
|
180 |
0.0683 |
0.0632 |
0.0585 |
|
181 |
0.0669 |
0.0620 |
0.0573 |
|
182 |
0.0656 |
0.0607 |
0.0562 |
|
183 |
0.0643 |
0.0595 |
0.0551 |
|
184 |
0.0630 |
0.0583 |
0.0540 |
|
185 |
0.0618 |
0.0572 |
0.0529 |
|
186 |
0.0606 |
0.0561 |
0.0518 |
|
187 |
0.0594 |
0.0550 |
0.0508 |
|
188 |
0.0582 |
0.0539 |
0.0498 |
|
189 |
0.0571 |
0.0528 |
0.0488 |
|
190 |
0.0560 |
0.0518 |
0.0479 |
|
191 |
0.0550 |
0.0508 |
0.0469 |
|
192 |
0.0539 |
0.0498 |
0.0460 |
|
193 |
0.0529 |
0.0489 |
0.0451 |
|
194 |
0.0519 |
0.0480 |
0.0443 |
|
195 |
0.0509 |
0.0471 |
0.0434 |
|
196 |
0.0500 |
0.0462 |
0.0426 |
|
197 |
0.0491 |
0.0453 |
0.0418 |
|
198 |
0.0482 |
0.0445 |
0.0410 |
|
199 |
0.0473 |
0.0436 |
0.0402 |
|
200 |
0.0464 |
0.0428 |
0.0395 |
負(fù)溫度系數(shù)NTC熱敏電阻器零功率電阻值R25℃=6.8K B常數(shù)=3950阻值與溫度對照計(jì)算R/T表由專業(yè)NTC熱敏電阻、溫度傳感器生產(chǎn)廠家提供，如需更多參數(shù)R/T值表請致電本公司。
