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NTC THERMISTORSPECIFICATIONS
1) Scope
This specification defines ratings, dimension, insulation, climatic test and mechanical characteristics for JT type thermistor.
2) Part No.: DAE-JT103F-025
3) Rating
3-1) Rated zero-power resistance : R25 : 10KΩ ± 1% ( at 25℃ )
3-2) B value : B25/85: 3,435K ± 1%
* The B value is calculated using the zero-power resistance values measured at 25℃ and 85℃.
3-3) Dissipation factor : Approx. 0.7 mW/℃ ( in air )
3-4) Thermal time constant : Approx. 5.0 S ( in air )
3-5) Maximum power rating : 2.5 mW ( at 25℃ )
3-6) Category temperature range : -40 ~ 90 ℃
4) Insulation resistance
Insulation resistance shall be more than 100MΩ which is measured at DC 100V between film area and terminals.
5) Climatic test
5-1) Dry heat
After the test samples were exposed in air at 90 ± 1℃ for 1,000 hours, the change ratio of the rated zero-power resistance shall be within ± 1% of the initial value.
5-2) Damp heat
After the test samples were exposed in the humidity of 95% at 40 ± 2℃ for 1,000 hours, the change ratio of the rated zero-power resistance shall be within ± 1% of the initial value.
5-3) Cold
After the test samples were exposed in air at -30 ± 1℃ for 1,000 hours, the change ratio of the rated zero-power resistance shall be within ± 1% of the initial value.
5-4) Loading
After DC 1mA current was applied to the test samples in the temperature of 40 ± 2℃ and the humidity of 95% for 1,000 hours, the change ratio of the rated zero-power resistance shall be within ± 1% of the initial value.
5-5) Change of temperature
One cycle of the change of temperature shall be carried out in the order of the following conditions.
l Room ambient temperature ( Initial value ) at -25 ± 3℃ for 30 minutes.
l Room ambient temperature for 3 minutes at 90 ± 2℃ for 30 minutes
l Room ambient temperature for 3 minutes after the 100 cycles of this process, the change ratio of the rated zero-power resistance shall be within ± 1% of the initial value.
6) Mechanical characteristics
6-1) Resistance to soldering heat
The terminals shall be dipped into a soldering bath having a temperature of 260 ± 5℃ to a point 2.0mm from the body and then be held there for 5 ± 1s, the change ratio of the rated zero-power resistance shall be within ± 1% of the initial value.
6-2) Solderability
After dipping the terminal to a depth in a soldering bath of 235 ± 5℃ for ± 0.5s. Approximately 90% of terminals should be covered with solder uniformly.
6-3) Free fall:
After three times fall to a maple board from 0.75 meter high, there shall be no visible damage and the change ratio of the rated zero-power resistance shall be within ± 1% of the initial value.
6-4) Robustness of termination
After 1N loading weight for 10 ± 1S was applied to the wise terminations, there shall be no visible damage and the change ratio of the rated zero-power resistance shall be within ± 1% of the initial value.
7) Dimensions ( mm )
| Resistance Table |
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| MODEL : 10KOhm |
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| B(25/85) : 3435˚K |
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UNIT : ㏀ |
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| TEMP |
STD |
TEMP |
STD |
TEMP |
STD |
TEMP |
STD |
| -40 |
205.9 |
6 |
21.41 |
52 |
3.842 |
98 |
1.004 |
| -39 |
194.1 |
7 |
20.52 |
53 |
3.719 |
99 |
0.979 |
| -38 |
183.0 |
8 |
19.67 |
54 |
3.601 |
100 |
0.954 |
| -37 |
172.6 |
9 |
18.86 |
55 |
3.488 |
101 |
0.931 |
| -36 |
163.0 |
10 |
18.09 |
56 |
3.379 |
102 |
0.908 |
| -35 |
153.9 |
11 |
17.35 |
57 |
3.274 |
103 |
0.886 |
| -34 |
145.4 |
12 |
16.65 |
58 |
3.172 |
104 |
0.864 |
| -33 |
137.4 |
13 |
15.99 |
59 |
3.075 |
105 |
0.843 |
| -32 |
130.0 |
14 |
15.35 |
60 |
2.981 |
106 |
0.823 |
| -31 |
123.0 |
15 |
14.74 |
61 |
2.890 |
107 |
0.804 |
| -30 |
116.4 |
16 |
14.16 |
62 |
2.803 |
108 |
0.784 |
| -29 |
110.2 |
17 |
13.61 |
63 |
2.719 |
109 |
0.766 |
| -28 |
104.4 |
18 |
13.09 |
64 |
2.638 |
110 |
0.748 |
| -27 |
98.96 |
19 |
12.58 |
65 |
2.559 |
111 |
0.730 |
| -26 |
93.84 |
20 |
12.10 |
66 |
2.484 |
112 |
0.713 |
| -25 |
89.02 |
21 |
11.64 |
67 |
2.411 |
113 |
0.697 |
| -24 |
87.31 |
22 |
11.20 |
68 |
2.341 |
114 |
0.681 |
| -23 |
82.83 |
23 |
10.78 |
69 |
2.273 |
115 |
0.665 |
| -22 |
78.61 |
24 |
10.38 |
70 |
2.207 |
116 |
0.650 |
| -21 |
74.63 |
25 |
10.00 |
71 |
2.144 |
117 |
0.635 |
| -20 |
70.89 |
26 |
9.628 |
72 |
2.083 |
118 |
0.621 |
| -19 |
67.36 |
27 |
9.271 |
73 |
2.024 |
119 |
0.607 |
| -18 |
64.03 |
28 |
8.931 |
74 |
1.967 |
120 |
0.593 |
| -17 |
60.90 |
29 |
8.604 |
75 |
1.912 |
121 |
0.580 |
| -16 |
57.93 |
30 |
8.292 |
76 |
1.858 |
122 |
0.567 |
| -15 |
55.14 |
31 |
7.993 |
77 |
1.807 |
123 |
0.555 |
| -14, , |
52.49 |
32 |
7.707 |
78 |
1.757 |
124 |
0.543 |
| -13 |
50.00 |
33 |
7.433 |
79 |
1.709 |
125 |
0.531 |
| -12 |
47.64 |
34 |
7.170 |
80 |
1.662 |
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| -11 |
45.41 |
35 |
6.918 |
81 |
1.617 |
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| -10 |
43.29 |
36 |
6.677 |
82 |
1.574 |
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| -9 |
41.30 |
37 |
6.445 |
83 |
1.532 |
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| -8 |
39.40 |
38 |
6.223 |
84 |
1.491 |
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| -7 |
37.61 |
39 |
6.010 |
85 |
1.451 |
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| -6 |
35.91 |
40 |
5.805 |
86 |
1.373 |
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| -5 |
34.30 |
41 |
5.609 |
87 |
1.337 |
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| -4 |
32.78 |
42 |
5.420 |
88 |
1.302 |
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| -3 |
31.33 |
43 |
5.239 |
89 |
1.267 |
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| -2 |
29.96 |
44 |
5.065 |
90 |
1.234 |
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| -1 |
28.65 |
45 |
4.898 |
91 |
1.202 |
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| 0 |
27.41 |
46 |
4.738 |
92 |
1.171 |
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| 1 |
26.62 |
47 |
4.583 |
93 |
1.141 |
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| 2 |
25.47 |
48 |
4.435 |
94 |
1.112 |
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| 3 |
24.38 |
49 |
4.292 |
95 |
1.083 |
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| 4 |
23.34 |
50 |
4.155 |
96 |
1.056 |
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| 5 |
22.35 |
51 |
3.969 |
97 |
1.029 |
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