Thin film thermistor
A dural process for production of new, novel structure, high reliability, good consistency, is widely used in temperature measurement, temperature control and temperature compensation.
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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