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r25=200k±3%
b25/50=3450±3%
temp.
(deg. c)
rmax
(k ohms)
rnor
(k ohms)
rmin
(k ohms)
temp.
(deg. c)
rmax
(k ohms)
rnor
(k ohms)
rmin
(k ohms)
-20
1527.9012
1426.2471
1330.1580
91
25.4184
23.6465
21.9782
-19
1452.0084
1356.7583
1266.6154
92
24.7430
23.0055
21.3707
-18
1380.3528
1291.0836
1206.5009
93
24.0884
22.3846
20.7826
-17
1312.6725
1228.9913
1149.6090
94
23.4538
21.7830
20.2130
-16
1248.7242
1170.2650
1095.7484
95
22.8387
21.2002
19.6615
-15
1188.2803
1114.7028
1044.7400
96
22.2422
20.6354
19.1274
-14
1131.1281
1062.1155
996.4158
97
21.6638
20.0880
18.6100
-13
1077.0696
1012.3268
950.6194
98
21.1029
19.5574
18.1087
-12
1025.9194
965.1716
907.2036
99
20.5588
19.0430
17.6230
-11
977.5046
920.4957
866.0314
100
20.0310
18.5442
17.1524
-10
931.6631
878.1543
826.9738
101
19.5189
18.0606
16.6962
-9
888.2435
838.0123
789.9102
102
19.0221
17.5916
16.2541
-8
847.1041
799.9429
754.7275
103
18.5399
17.1367
15.8255
-7
808.1124
763.8275
721.3196
104
18.0719
16.6955
15.4100
-6
771.1443
729.5547
689.5870
105
17.6177
16.2673
15.0070
-5
736.0833
697.0203
659.4363
106
17.1767
15.8520
14.6163
-4
702.8204
666.1263
630.7798
107
16.7485
15.4489
14.2373
-3
671.2534
636.7809
603.5352
108
16.3328
15.0577
13.8696
-2
641.2865
608.8981
577.6251
109
15.9291
14.6780
13.5130
-1
612.8298
582.3967
552.9767
110
15.5370
14.3094
13.1669
0
585.7990
557.2007
529.5217
111
15.1561
13.9515
12.8311
1
560.1144
533.2388
507.1957
112
14.7861
13.6040
12.5052
2
535.7021
510.4437
485.9384
113
14.4266
13.2666
12.1890
3
512.4922
488.7523
465.6927
114
14.0772
12.9389
11.8819
4
490.4186
468.1052
446.4049
115
13.7378
12.6206
11.5838
5
469.4199
448.4465
428.0247
116
13.4078
12.3114
11.2944
6
449.4379
429.7236
410.5044
117
13.0871
12.0110
11.0134
7
430.4178
411.8870
393.7992
118
12.7754
11.7191
10.7405
8
412.3083
394.8898
377.8668
119
12.4723
11.4354
10.4754
9
395.0610
378.6883
362.6675
120
12.1776
11.1598
10.2179
10
378.6303
363.2410
348.1635
121
11.8910
10.8919
9.9677
11
362.9731
348.5087
334.3194
122
11.6123
10.6314
9.7246
12
348.0491
334.4546
321.1018
123
11.3412
10.3782
9.4885
13
333.8201
321.0440
308.4790
124
11.0775
10.1320
9.2589
14
320.2501
308.2441
296.4211
125
10.8209
9.8926
9.0359
15
307.3051
296.0238
284.9000
126
10.5713
9.6598
8.8190
16
294.9532
284.3540
273.8889
127
10.3284
9.4334
8.6082
17
283.1641
273.2070
263.3627
128
10.0921
9.2132
8.4033
18
271.9093
262.5567
253.2975
129
9.8620
8.9989
8.2040
19
261.1619
252.3784
243.6708
130
9.6381
8.7905
8.0102
20
250.8964
242.6488
234.4612
131
9.4201
8.5877
7.8218
21
241.0887
233.3459
225.6485
132
9.2079
8.3903
7.6385
22
231.7161
224.4488
217.2137
133
9.0013
8.1983
7.4602
23
222.7572
215.9377
209.1387
134
8.8001
8.0113
7.2867
24
214.1916
207.7940
201.4062
135
8.6042
7.8294
7.1179
25
206.0000
200.0000
194.0000
136
8.4134
7.6523
6.9537
26
198.4659
192.5389
186.6208
137
8.2275
7.4798
6.7939
27
191.2465
185.3948
179.5604
138
8.0465
7.3119
6.6384
28
184.3270
178.5527
172.8037
139
7.8701
7.1484
6.4870
29
177.6936
171.9984
166.3359
140
7.6983
6.9891
6.3396
30
171.3330
165.7183
160.1434
141
7.5308
6.8340
6.1961
31
165.2326
159.6996
154.2131
142
7.3676
6.6830
6.0565
32
159.3805
153.9302
148.5325
143
7.2086
6.5358
5.9205
33
153.7655
148.3986
143.0900
144
7.0536
6.3924
5.7880
34
148.3768
143.0937
137.8745
145
6.9025
6.2527
5.6590
35
143.2040
138.0052
132.8754
146
6.7552
6.1166
5.5334
36
138.2377
133.1232
128.0826
147
6.6116
5.9839
5.4110
37
133.4685
128.4384
123.4866
148
6.4716
5.8547
5.2918
38
128.8877
123.9418
119.0785
149
6.3350
5.7286
5.1756
39
124.4869
119.6251
114.8497
150
6.2019
5.6058
5.0625
40
120.2582
115.4801
110.7920
151
6.0720
5.4860
4.9522
41
116.1941
111.4991
106.8976
152
5.9453
5.3693
4.8447
42
112.2873
107.6751
103.1594
153
5.8218
5.2554
4.7399
43
108.5311
104.0009
99.5701
154
5.7012
5.1444
4.6378
44
104.9190
100.4701
96.1233
155
5.5836
5.0362
4.5383
45
101.4447
97.0764
92.8127
156
5.4689
4.9306
4.4413
46
98.1023
93.8138
89.6321
157
5.3569
4.8276
4.3467
47
94.8863
90.6767
86.5759
158
5.2476
4.7271
4.2544
48
91.7913
87.6596
83.6386
159
5.1410
4.6291
4.1645
49
88.8121
84.7575
80.8151
160
5.0369
4.5335
4.0767
50
85.9439
81.9653
78.1005
161
4.9353
4.4402
3.9912
51
83.1821
79.2785
75.4900
162
4.8361
4.3492
3.9077
52
80.5222
76.6925
72.9792
163
4.7392
4.2603
3.8263
53
77.9600
74.2032
70.5638
164
4.6447
4.1736
3.7469
54
75.4915
71.8064
68.2398
165
4.5524
4.0889
3.6694
55
73.1128
69.4984
66.0033
166
4.4622
4.0063
3.5938
56
70.8202
67.2754
63.8506
167
4.3741
3.9257
3.5200
57
68.6103
65.1340
61.7782
168
4.2881
3.8469
3.4480
58
66.4797
63.0707
59.7827
169
4.2041
3.7700
3.3777
59
64.4252
61.0824
57.8610
170
4.1221
3.6950
3.3091
60
62.4438
59.1661
56.0100
171
4.0419
3.6216
3.2422
61
60.5324
57.3187
54.2267
172
3.9636
3.5500
3.1768
62
58.6885
55.5375
52.5085
173
3.8870
3.4801
3.1130
63
56.9091
53.8199
50.8526
174
3.8122
3.4118
3.0507
64
55.1919
52.1633
49.2565
175
3.7392
3.3451
2.9898
65
53.5344
50.5653
47.7178
176
3.6677
3.2799
2.9304
66
51.9342
49.0235
46.2342
177
3.5979
3.2162
2.8724
67
50.3892
47.5357
44.8034
178
3.5297
3.1540
2.8157
68
48.8971
46.0998
43.4234
179
3.4630
3.0932
2.7603
69
47.4559
44.7138
42.0922
180
3.3978
3.0337
2.7063
70
46.0637
43.3757
40.8077
181
3.3340
2.9757
2.6534
71
44.7187
42.0836
39.5682
182
3.2717
2.9189
2.6018
72
43.4189
40.8359
38.3719
183
3.2107
2.8634
2.5514
73
42.1627
39.6306
37.2171
184
3.1511
2.8092
2.5021
74
40.9485
38.4664
36.1022
185
3.0928
2.7562
2.4539
75
39.7746
37.3415
35.0257
186
3.0358
2.7043
2.4069
76
38.6395
36.2545
33.9860
187
2.9801
2.6537
2.3609
77
37.5419
35.2039
32.9817
188
2.9255
2.6041
2.3159
78
36.4803
34.1884
32.0116
189
2.8722
2.5556
2.2720
79
35.4534
33.2066
31.0742
190
2.8200
2.5083
2.2290
80
34.4599
32.2573
30.1684
191
2.7689
2.4619
2.1870
81
33.4985
31.3393
29.2929
192
2.7189
2.4166
2.1459
82
32.5682
30.4515
28.4467
193
2.6700
2.3722
2.1058
83
31.6677
29.5926
27.6285
194
2.6221
2.3288
2.0665
84
30.7961
28.7616
26.8374
195
2.5753
2.2864
2.0281
85
29.9522
27.9576
26.0724
196
2.5295
2.2449
1.9905
86
29.1350
27.1795
25.3325
197
2.4846
2.2043
1.9538
87
28.3437
26.4265
24.6168
198
2.4407
2.1645
1.9179
88
27.5772
25.6975
23.9243
199
2.3977
2.1256
1.8827
89
26.8347
24.9917
23.2542
200
2.3556
2.0875
1.8483
90
26.1154
24.3083
22.6058
更多阻值表请查阅我司网站