Interchangeable Precision Radial Epoxy Coated Thermometrics NTC Thermistor 2.7KOhm 3950 For Car Automotive Electronics
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
automotive applications, sensor elements in industrial and commercial applications, heating systems and industrial systems.
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 |
|
|
|
|
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