CMF0402102F3450FB High Precision SMD NTC Thermistor With Excellent Welding Performance For Surface Mounting
0402 Series NTC Patch thermistor
NTC thermistor is a kind of manganese, cobalt, nickel metal oxides as raw material sintering of ceramic semiconductor thermal crystals,
high sensitivity to temperature change, the zero power resistance decreases, with the body temperature rise with the temperature
resistance exponential decline, temperature coefficient as high as (3~6% / ℃), small temperature changes can cause great resistance
change. According to the R-T resistance value temperature curve of the thermistor, the precise resistance value of each temperature
point can be calculated. In the circuit, the digital temperature correspondence can be realized through the resistance value, which is
used for temperature measurement and control.
Feature
1) Small size, no lead wire, excellent welding performance, suitable for high-density surface mounting;
2) The surface of the porcelain body is sealed with glass, with good moisture resistance, high reliability and stability;
3) Wide range of working temperature: -40℃ ~ + 125℃;
4) High-precision resistance value and B value constant;
5) Meet the RoHS environmental protection standards.
Applications
1)Temperature measurement: electronic thermometer, electronic perpetual calendar, electronic clock temperature display, electronic gifts, etc.;
2) Temperature control: temperature sensing of rechargeable batteries for mobile phones, car phones, laptops, smart wearable devices and other devices;
3)Temperature compensation: Temperature compensation for the transistor, IC, and crystal oscillator of the mobile communication equipment.
Main techno-parameter
| Part No |
Resistance
(25℃)
(kΩ)
|
B-value
(25/50℃)(K)
|
B-value
(25/85℃)(K)
|
Allow working Current
(25℃)(mA)
|
Thermal Dissipation Coefficient
(mW/℃)
|
Thermal Time constant
(s)
|
| CMF0402102F3450FB |
1.0 |
3450±1% |
3500 |
1.00 |
1.0 |
<3 |
| CMF0402152F3950FB |
1.5 |
3950±1% |
3987 |
0.81 |
| CMF0402222F3450FB |
2.2 |
3450±1% |
3500 |
0.67 |
| CMF0402222F3950FB |
2.2 |
3950±1% |
3987 |
0.67 |
| CMF0402332F3450FB |
3.3 |
3450±1% |
3500 |
0.55 |
| CMF0402332F3950FB |
3.3 |
3950±1% |
3987 |
0.55 |
| CMF0402472F3500FB |
4.7 |
3500±1% |
3545 |
0.46 |
| CMF0402472F3950FB |
4.7 |
3950±1% |
3987 |
0.46 |
| CMF0402682F3500FB |
6.8 |
3500±1% |
3545 |
0.38 |
| CMF0402682F3950FB |
6.8 |
3950±1% |
3987 |
0.38 |
| CMF0402103F3380FB |
10 |
3380±1% |
3435 |
0.31 |
| CMF0402103F3900FB |
10 |
3900±1% |
3935 |
0.31 |
| CMF0402153F3950FB |
15 |
3950±1% |
3987 |
0.25 |
| CMF040223F3950FB |
22 |
3950±1% |
3987 |
0.21 |
| CMF0402333F4050FB |
33 |
4050±1% |
4100 |
0.17 |
| CMF0402473F4050FB |
47 |
4050±1% |
4100 |
0.14 |
| CMF0402473F4485FB |
47 |
4485±1% |
4545 |
0.14 |
| CMF0402493F3937FB |
49.1 |
3937±1% |
3973 |
0.13 |
| CMF0402503F4100FA |
50 |
4050 |
4100±1% |
0.13 |
| CMF0402683F4150FB |
68 |
4150±1% |
4210 |
0.12 |
| CMF0402683F4485FB |
68 |
4485±1% |
4545 |
0.12 |
| CMF0402104F4250FB |
100 |
4250±1% |
4310 |
0.10 |
| CMF0402104F4360FB |
100 |
4360±1% |
4403 |
0.10 |
| CMF0402104F4485FB |
100 |
4485±1% |
4545 |
0.10 |
| CMF0402154F4500FB |
150 |
4500±1% |
4582 |
0.08 |
| CMF0402224F3950FB |
220 |
3950±1% |
3987 |
0.06 |
| CMF0402224F4250FB |
220 |
4250±1% |
4310 |
0.06 |
| CMF0402224F4500FB |
220 |
4500±1% |
4582 |
0.06 |
| CMF0402334F3950FB |
330 |
3950±1% |
3987 |
0.05 |
| CMF0402334F4500FB |
330 |
4500±1% |
4582 |
0.05 |
1.0 |
<3 |
| CMF0402474F4000FB |
470 |
4000±1% |
4045 |
0.04 |
| CMF0402474F4500FB |
470 |
4500±1% |
4582 |
0.04 |
| CMF0402684F4100FB |
680 |
4100±1% |
4135 |
0.03 |
| CMF0402684F4500FB |
680 |
4500±1% |
4582 |
0.03 |
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