薄膜热敏电阻NTC 103J

 

 

ntc thermistorspecifications

 

1)    scope

 

this specification defines ratings, dimension, insulation, climatic test and mechanical characteristics for jt type thermistor.
2) part no.:  dae-jt103j-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
               
  model : 10kohm          
  b(25/85) : 3435????????k           unit : ????????
               
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 　 　
-11 45.41 35 6.918 81 1.617 　 　
-10 43.29 36 6.677 82 1.574 　 　
-9 41.30 37 6.445 83 1.532 　 　
-8 39.40 38 6.223 84 1.491 　 　
-7 37.61 39 6.010 85 1.451 　 　
-6 35.91 40 5.805 86 1.373 　 　
-5 34.30 41 5.609 87 1.337 　 　
-4 32.78 42 5.420 88 1.302 　 　
-3 31.33 43 5.239 89 1.267 　 　
-2 29.96 44 5.065 90 1.234 　 　
-1 28.65 45 4.898 91 1.202 　 　
0 27.41 46 4.738 92 1.171 　 　
1 26.62 47 4.583 93 1.141 　 　
2 25.47 48 4.435 94 1.112 　 　
3 24.38 49 4.292 95 1.083 　 　
4 23.34 50 4.155 96 1.056 　 　
5 22.35 51 3.969 97 1.029