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A-A-55512 Resistor, Thermally Sensitive \(Thermistor\)This \(CID\) covers the general requirements for a thermistor. This thermistor is a stainless steel probe with a flange, for air \(open ended\) and liquid \(sealed ended\) measurements. These parts come with insulated leads in four different lengths. Thermistors covered by this CID are intended for commercial/industrial applications and are not used in military systems needing stringent environmental and electrical requirements.

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A-A-55512B
3.10 Storage temperature. The operating temperature shall be -20°C to +105°C.
*
3.11 Marking. Marking of the individual thermistor supplied to this CID is not required; however, each
unit package shall be marked with the manufacturer's standard commercial PIN.
TABLE II. Resistance temperature coefficient.
CURVE A
CURVE Y
CURVE Z
CURVE W
°C
°F
RT/R25  Max  NTC
RT/R25  Max  NTC
RT/R25
Max
NTC
RT/R25
Max
NTC
dev
dev
dev
dev
-60
-76
43.0
75.69
9.7
140.58
4.1
-55
-67
31.9
54.78
96.40
-50
-58
24.3
18.3  5.6
40.06
8.2
6.1
67.06
3.5
7.2
-40
-40
14.4
15.4  4.9
22.05
6.8
5.8
33.66
3.0
6.7
40.16
3.0
-30
-22
8.93
12.5  4.5
12.56
5.6
5.4
17.10
2.4
6.2
20.64
2.4
6.5
-20
-4
5.69
9.9
4.4
7.422
4.4
5.1
9.712
1.9
5.8
11.03
1.9
5.1
-15
5
4.56
5.777
7.296
8.175
-10
14
3.68
7.4
4.3
4.527
3.3
4.8
5.534
1.4
5.5
6.119
1.4
5.7
-5
23
2.99
3.58
4.234
4.615
0
32
2.45
5.0
3.9
2.848
2.3
4.5
3.266
1.0
5.1
3.510
1.0
5.4
5
41
2.02
2.282
2.540
2.690
10
50
1.68
2.7
3.8
1.838
1.2
4.2
1.99
0.5
4.6
2.078
0.5
5.1
15
59
1.42
1.492
1.571
1.617
20
68
1.18
0.5
3.4
1.216
0.3
4.0
1.249
0.1
4.5
1.267
0.1
4.8
25
77
1.0
3.1
1.0
3.9
1.0
4.4
1.0
4.7
30
86
0.854
1.4
3.0
0.826
0.6
3.8
0.806
0.2
4.3
0.794
0.2
4.6
35
95
0.732
0.686
0.653
0.635
40
104
0.628
3.2
2.9
0.573
1.4
3.6
0.533
0.6
4.0
0.511
0.6
4.3
45
113
0.537
0.480
0.437
0.413
50
122
0.464
5.0
2.8
0.405
2.2
3.4
0.36
1.0
3.8
0.336
1.0
4.1
55
131
0.403
0.343
0.299
0.275
60
140
0.350
6.7
2.7
0.291
3.0
3.2
0.249
1.2
3.6
0.23
1.2
3.9
65
149
0.305
0.249
0.208
0.167
70
158
0.267
8.2
2.6
0.214
3.6
3.0
0.175
1.6
3.4
0.155
1.6
3.7
75
167
0.238
0.184
0.148
0.129
80
176
0.208
9.8
2.5
0.159
4.3
2.8
0.126
1.8
3.3
0.108
1.9
3.5
85
185
0.183
0.138
0.107
0.091
90
194
0.163
11.2  2.4
0.120
4.9
2.7
0.092
2.1
3.1
0.077
2.1
3.3
95
203
0.145
0.105
0.079
0.065
100
212
0.130
12.6  2.3
0.092
5.5
2.5
0.068
2.4
2.9
0.057
2.4
3.2
105
221
0.117
0.081
0.059
0.048
110
230
0.105
0.072
6.1
2.4
0.061
2.6
2.8
0.041
2.6
3.0
115
239
0.094
13.5  2.2
0.064
0.045
0.035
120
248
0.085
0.057
6.7
2.3
0.039
2.9
2.7
0.030
2.9
2.9
125
257
0.075
15.0  2.1
0.050
6.9
0.034
3.0
2.6
0.026
130
366
0.030
3.1
2.5
0.023
3.1
2.8
140
284
0.024
3.4
2.4
0.017
3.4
2.7
150
302
0.019
3.5
0.013
3.5
3



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