Interchangeable Precision Radial Epoxy Coated Thermometrics NTC Thermistor 2.7KOhm 3950 For Car Automotive Electronics
Short Describ
Epoxy Encapsulated Precision Interchangeable NTC Thermistor utilizing high stability pressed-disk ceramic sensor for general applications.
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Features
• Advanced NTC technology
• Temperature range from -55 °C to +125 °C
• Highly resistant to thermal shocks
Applications Requiring Sensing Small Changes in Temperature
Non-condensing Moisture Environments
Allows use in Applications World-wide
Automotive engine management
Air conditioning
Medical
Clinical thermometers
Blood analysis
|
A |
B |
C |
D |
L |
|
Max 2.5 |
Max 4.0 |
1.7±.5 |
0.3±0.05 |
25±1 |
|
Max 3 |
Max 4.5 |
2.2±.5 |
0.45±0.05 |
25±1 |
|
NO |
Material Name |
Item/PN |
|
E. |
Element |
R25=2.7KΩ±1% B25/50=3950±1% |
|
B |
Coating |
Epoxy resin |
|
D. |
Lead Wire |
CP Wire |
|
NO |
Item |
Sign |
Test Conditions |
Min. |
Normal value |
Max. |
Unit |
|
1. |
Resistance at 25℃ |
R25 |
Ta=25±0.05℃ PT≦0.1mw |
2.673 |
2.7 |
2.727 |
kΩ |
|
2. |
B Value |
B25/50 |
|
3910.5 |
3950 |
3989.5 |
k |
|
3. |
Dissipation factor |
σ |
In still air |
≥2 |
mw/℃ |
||
|
4. |
Time constant |
τ |
In still air |
≤7 |
sec |
||
|
5. |
Operating temp.range |
/ |
/ |
-55 |
/ |
+125 |
℃ |
|
6 |
Insulation resistance |
/ |
100V DC 1min |
≥100 |
MΩ |
||
|
7. |
Maximum rated power |
Pmax |
/ |
≤50 |
mW |
||
MOUNTING
The thermistors are suitable for all standard assembly processes like crimping, soldering, welding. The parameters of the assembly process should be chosen in accordance with the lead-wire material (tinned nickel) and validated in application. The mounting process should be in compliance with the following guidelines and recommendations:
• Peeling forces on the leads should be reduced to a minimum and should never exceed 3 N
• Avoid large temperature gradients between the welding region and the sensor
PACKAGING
• Bulk components are delivered in boxes of 500 components
Resistance Vs. Temperature Chart
|
R－T CONVERSION TABLE |
|||||||
|
R25=2.7KΩ±1% B25/50=3950K±1% |
|||||||
|
T/℃ |
Rmax |
Rcen |
Rmin |
T/℃ |
Rmax |
Rcen |
Rmin |
|
-55 |
211.966 |
223.777 |
236.223 |
-18 |
21.618 |
22.303 |
23.006 |
|
-54 |
197.640 |
208.505 |
219.946 |
-17 |
20.470 |
21.106 |
21.760 |
|
-53 |
184.388 |
194.389 |
204.911 |
-16 |
19.389 |
19.981 |
20.588 |
|
-52 |
172.123 |
181.332 |
191.014 |
-15 |
18.371 |
18.921 |
19.486 |
|
-51 |
160.761 |
169.246 |
178.160 |
-14 |
17.411 |
17.923 |
18.448 |
|
-50 |
150.230 |
158.051 |
166.262 |
-13 |
16.507 |
16.983 |
17.471 |
|
-49 |
140.463 |
147.675 |
155.242 |
-12 |
15.654 |
16.097 |
16.551 |
|
-48 |
131.398 |
138.052 |
145.027 |
-11 |
14.850 |
15.262 |
15.684 |
|
-47 |
122.980 |
129.121 |
135.555 |
-10 |
14.092 |
14.475 |
14.867 |
|
-46 |
115.158 |
120.828 |
126.764 |
-9 |
13.376 |
13.732 |
14.097 |
|
-45 |
107.885 |
113.122 |
118.602 |
-8 |
12.700 |
13.032 |
13.371 |
|
-44 |
101.119 |
105.958 |
111.018 |
-7 |
12.062 |
12.371 |
12.686 |
|
-43 |
94.821 |
99.294 |
103.968 |
-6 |
11.459 |
11.746 |
12.040 |
|
-42 |
88.955 |
93.092 |
97.411 |
-5 |
10.890 |
11.157 |
11.429 |
|
-41 |
83.489 |
87.316 |
91.309 |
-4 |
10.351 |
10.600 |
10.853 |
|
-40 |
78.393 |
81.934 |
85.626 |
-3 |
9.843 |
10.074 |
10.309 |
|
-39 |
73.640 |
76.918 |
80.333 |
-2 |
9.361 |
9.576 |
9.795 |
|
-38 |
69.204 |
72.239 |
75.399 |
-1 |
8.906 |
9.106 |
9.310 |
|
-37 |
65.062 |
67.873 |
70.798 |
0 |
8.475 |
8.662 |
8.851 |
|
-36 |
61.193 |
63.797 |
66.505 |
1 |
8.068 |
8.241 |
8.417 |
|
-35 |
57.577 |
59.990 |
62.498 |
2 |
7.682 |
7.843 |
8.006 |
|
-34 |
54.195 |
56.433 |
58.756 |
3 |
7.316 |
7.466 |
7.618 |
|
-33 |
51.033 |
53.107 |
55.260 |
4 |
6.970 |
7.109 |
7.250 |
|
-32 |
48.073 |
49.996 |
51.992 |
5 |
6.642 |
6.771 |
6.902 |
|
-31 |
45.301 |
47.086 |
48.936 |
6 |
6.331 |
6.451 |
6.573 |
|
-30 |
42.706 |
44.362 |
46.077 |
7 |
6.036 |
6.148 |
6.261 |
|
-29 |
40.274 |
41.810 |
43.402 |
8 |
5.757 |
5.860 |
5.965 |
|
-28 |
37.994 |
39.420 |
40.896 |
9 |
5.492 |
5.588 |
5.685 |
|
-27 |
35.855 |
37.180 |
38.550 |
10 |
5.243 |
5.333 |
5.423 |
|
-26 |
33.850 |
35.080 |
36.351 |
11 |
5.001 |
5.084 |
5.167 |
|
-25 |
31.967 |
33.110 |
34.289 |
12 |
4.775 |
4.851 |
4.928 |
|
-24 |
30.199 |
31.261 |
32.356 |
13 |
4.559 |
4.630 |
4.702 |
|
-23 |
28.539 |
29.526 |
30.543 |
14 |
4.355 |
4.421 |
4.487 |
|
-22 |
26.980 |
27.896 |
28.841 |
15 |
4.161 |
4.222 |
4.283 |
|
-21 |
25.513 |
26.365 |
27.243 |
16 |
3.976 |
4.032 |
4.089 |
|
-20 |
24.135 |
24.927 |
25.742 |
17 |
3.801 |
3.853 |
3.905 |
|
-19 |
22.838 |
23.574 |
24.332 |
18 |
3.634 |
3.682 |
3.730 |
|
R－T CONVERSION TABLE |
|||||||
|
R25=2.7KΩ±1% B25/50=3950K±1% |
|||||||
|
T/℃ |
Rmax |
Rcen |
Rmin |
T/℃ |
Rmax |
Rcen |
Rmin |
|
19 |
3.475 |
3.520 |
3.564 |
56 |
0.764 |
0.782 |
0.799 |
|
20 |
3.324 |
3.365 |
3.407 |
57 |
0.736 |
0.753 |
0.771 |
|
21 |
3.181 |
3.219 |
3.257 |
58 |
0.710 |
0.727 |
0.744 |
|
22 |
3.044 |
3.079 |
3.114 |
59 |
0.684 |
0.701 |
0.717 |
|
23 |
2.914 |
2.946 |
2.978 |
60 |
0.660 |
0.676 |
0.692 |
|
24 |
2.790 |
2.820 |
2.849 |
61 |
0.637 |
0.652 |
0.668 |
|
25 |
2.673 |
2.700 |
2.727 |
62 |
0.614 |
0.629 |
0.645 |
|
26 |
2.558 |
2.585 |
2.612 |
63 |
0.593 |
0.608 |
0.623 |
|
27 |
2.449 |
2.476 |
2.503 |
64 |
0.572 |
0.587 |
0.602 |
|
28 |
2.345 |
2.372 |
2.399 |
65 |
0.552 |
0.566 |
0.581 |
|
29 |
2.246 |
2.273 |
2.299 |
66 |
0.533 |
0.547 |
0.561 |
|
30 |
2.152 |
2.178 |
2.205 |
67 |
0.515 |
0.528 |
0.542 |
|
31 |
2.062 |
2.088 |
2.115 |
68 |
0.497 |
0.511 |
0.524 |
|
32 |
1.977 |
2.002 |
2.029 |
69 |
0.480 |
0.493 |
0.507 |
|
33 |
1.895 |
1.921 |
1.946 |
70 |
0.464 |
0.477 |
0.490 |
|
34 |
1.817 |
1.843 |
1.868 |
71 |
0.448 |
0.461 |
0.474 |
|
35 |
1.743 |
1.768 |
1.793 |
72 |
0.433 |
0.446 |
0.458 |
|
36 |
1.672 |
1.697 |
1.722 |
73 |
0.419 |
0.431 |
0.443 |
|
37 |
1.605 |
1.629 |
1.654 |
74 |
0.405 |
0.417 |
0.429 |
|
38 |
1.540 |
1.564 |
1.588 |
75 |
0.392 |
0.403 |
0.415 |
|
39 |
1.479 |
1.502 |
1.526 |
76 |
0.379 |
0.390 |
0.402 |
|
40 |
1.420 |
1.443 |
1.467 |
77 |
0.367 |
0.378 |
0.389 |
|
41 |
1.364 |
1.387 |
1.410 |
78 |
0.355 |
0.366 |
0.377 |
|
42 |
1.310 |
1.333 |
1.356 |
79 |
0.343 |
0.354 |
0.365 |
|
43 |
1.259 |
1.281 |
1.304 |
80 |
0.332 |
0.343 |
0.353 |
|
44 |
1.210 |
1.232 |
1.254 |
81 |
0.322 |
0.332 |
0.342 |
|
45 |
1.163 |
1.184 |
1.206 |
82 |
0.312 |
0.322 |
0.332 |
|
46 |
1.118 |
1.139 |
1.161 |
83 |
0.302 |
0.311 |
0.321 |
|
47 |
1.075 |
1.096 |
1.117 |
84 |
0.292 |
0.302 |
0.312 |
|
48 |
1.035 |
1.055 |
1.075 |
85 |
0.283 |
0.293 |
0.302 |
|
49 |
0.995 |
1.015 |
1.036 |
86 |
0.274 |
0.284 |
0.293 |
|
50 |
0.956 |
0.976 |
0.995 |
87 |
0.266 |
0.275 |
0.284 |
|
51 |
0.922 |
0.941 |
0.961 |
88 |
0.258 |
0.267 |
0.276 |
|
52 |
0.888 |
0.906 |
0.926 |
89 |
0.250 |
0.258 |
0.267 |
|
53 |
0.855 |
0.873 |
0.892 |
90 |
0.242 |
0.251 |
0.259 |
|
54 |
0.823 |
0.841 |
0.860 |
91 |
0.235 |
0.243 |
0.252 |
|
55 |
0.793 |
0.811 |
0.829 |
92 |
0.228 |
0.236 |
0.244 |
|
R－T CONVERSION TABLE |
|||||||
|
R25=2.7KΩ±1% B25/50=3950K±1% |
|||||||
|
T/℃ |
Rmax |
Rcen |
Rmin |
T/℃ |
Rmax |
Rcen |
Rmin |
|
93 |
0.221 |
0.229 |
0.237 |
|
|
|
|
|
94 |
0.215 |
0.222 |
0.230 |
|
|
|
|
|
95 |
0.208 |
0.216 |
0.224 |
|
|
|
|
|
96 |
0.202 |
0.210 |
0.217 |
|
|
|
|
|
97 |
0.196 |
0.203 |
0.211 |
|
|
|
|
|
98 |
0.191 |
0.198 |
0.205 |
|
|
|
|
|
99 |
0.185 |
0.192 |
0.199 |
|
|
|
|
|
100 |
0.180 |
0.187 |
0.193 |
|
|
|
|
|
101 |
0.175 |
0.181 |
0.188 |
|
|
|
|
|
102 |
0.170 |
0.176 |
0.183 |
|
|
|
|
|
103 |
0.165 |
0.171 |
0.178 |
|
|
|
|
|
104 |
0.160 |
0.166 |
0.173 |
|
|
|
|
|
105 |
0.156 |
0.162 |
0.168 |
|
|
|
|
|
106 |
0.151 |
0.157 |
0.164 |
|
|
|
|
|
107 |
0.147 |
0.153 |
0.159 |
|
|
|
|
|
108 |
0.143 |
0.149 |
0.155 |
|
|
|
|
|
109 |
0.139 |
0.145 |
0.151 |
|
|
|
|
|
110 |
0.135 |
0.141 |
0.147 |
|
|
|
|
|
111 |
0.132 |
0.137 |
0.143 |
|
|
|
|
|
112 |
0.128 |
0.133 |
0.139 |
|
|
|
|
|
113 |
0.125 |
0.130 |
0.135 |
|
|
|
|
|
114 |
0.121 |
0.127 |
0.132 |
|
|
|
|
|
115 |
0.118 |
0.123 |
0.128 |
|
|
|
|
|
116 |
0.115 |
0.120 |
0.125 |
|
|
|
|
|
117 |
0.112 |
0.117 |
0.122 |
|
|
|
|
|
118 |
0.109 |
0.114 |
0.119 |
|
|
|
|
|
119 |
0.106 |
0.111 |
0.116 |
|
|
|
|
|
120 |
0.104 |
0.108 |
0.113 |
|
|
|
|
|
121 |
0.101 |
0.105 |
0.110 |
|
|
|
|
|
122 |
0.098 |
0.103 |
0.107 |
|
|
|
|
|
123 |
0.096 |
0.100 |
0.104 |
|
|
|
|
|
124 |
0.093 |
0.098 |
0.102 |
|
|
|
|
|
125 |
0.091 |
0.095 |
0.099 |
|
|
|
|
