High Stability Fast Response Vehicle Temperature Sensor Excellent
Moisture Resistance
Negative temperature coefficient thermistors are made of metal
oxides such as manganese, cobalt, nickel and copper, and are
manufactured by ceramic technology. These metal oxide materials all
have semiconductor properties, because they are completely similar
to semiconductor materials such as germanium and silicon in terms
of conductivity. When the temperature is low, the number of
carriers (electrons and holes) in these oxide materials is small,
so its resistance value is high; as the temperature increases, the
number of carriers increases, so the resistance value decreases.
The range of NTC thermistor at room temperature is 100~1000000
ohms, and the temperature coefficient is -2[%]~-6.5[%].
►Different NTC thermistor using in the NTC temperature sensors with
the following different operating temperature:
Chip or MF52A,MF51E,MF55: temperature resist grade 125℃,actual
temperature resist grade 150℃
MF58: temperature resist grade 200℃,actual temperature resist grade
250℃
MF51: temperature resist grade 200℃,actual temperature resist grade
250℃
Special MF51: temperature resist grade 250℃,actual temperature
resist grade 300℃
Weldless chip:temperature resist grade 450℃,actual temperature
resist grade 500℃
Type | NTC(thermistor) Temperature Sensor |
Temperature range | -50℃ ~ +300℃；Customized |
Accurancy | 1%；5%；10% |
| 1K；2K；2.2k；2.7k；3K；5K；7K；8K；12K；15K；20K；25K；30K；40K；47K；50K；60K；70K；100K；200K；230K；250K；470K；500K；1000K；Customized |
B value | 3274；3435；3470；3928；3950；3977；4100；4200；4400；Customized |
Probe Material | Stainless steel SS304； aluminum；copper；plastic；epoxy；glass |
Installation | Flanged；Surface；Threaded；Plastic；Straight；Film；Customized |
Wire Material | Heat shrinkable tube；PVC tube；glass fiber tube； tube |
Connector | Molex；JST；DuPont；CWB；CJT；U type；Customized |
Waterproof | IP67；IP68 |
The main technical parameters:
1. The rated zero-power resistance value R25 refers to the
zero-power resistance value of the thermistor measured at 25°C.
2. B value; defined as the ratio of the difference of the natural
logarithm of the zero-power resistance value at two temperatures to
the difference between the two temperatures.
3. Thermal time constant; under zero power conditions, when the
temperature changes suddenly, the time required for the temperature
of the thermistor body to change by 63.2% of the temperature
difference between the beginning and the end.
4. Dissipation coefficient; at a specified ambient temperature, the
ratio of the change in power dissipation of the thermistor to its
corresponding temperature change.
Main Technology Parameters
| Part number | Rated resistance R25 | B value (25/50) | Dissipattion Coeffient.
| Thermal time constant | Operating temperature |
| Range KOhm | Tolerance % | (K) | Tolerance % | Mw/℃ | sec | ℃ |
| CWF□□□3100 | 0.1~20 | ±1 ±2 ±3 ±5 | 3100 | ±1 | ≥2.2 | ≤70 | -55~+125 |
| CWF□□□3270 | 0.2~20 | 3270 |
| CWF□□□3380 | 0.5~50 | 3380 |
| CWF□□□3470 | 0.5~50 | 3470 |
| CWF□□□3600 | 1~100 | 3600 |
| CWF□□□3950 | 5~100 | 3950 |
| CWF□□□4000 | 5~100 | 4000 |
| CWF□□□4050 | 5~200 | 4050 |
| CWF□□□4150 | 10~250 | 4150 |
| CWF□□□4300 | 20~1000 | 4300 |
| CWF□□□4500 | 20~1000 | 4500 |
NCT temperature sensor application range
◆Heating and heating air conditioners and related equipment
◆Household appliances of various sizes: air conditioners,
refrigerators, battery stoves, bread ovens, baking ovens, electric
ovens, microwave ovens, electric fans, soybean milk machines,
electric water heaters, electric rice cookers, disinfection
cabinets, water dispensers, heaters, electric irons, disinfection
Cabinets, drinking fountains, lighting appliances, etc.
◆Temperature measurement and control circuits for agricultural,
medical, environmental protection, meteorological, food processing
and other equipment
◆Instrument coils, automotive circuits, integrated circuit modules,
transistor amplifier circuits, temperature compensation circuits
such as quartz crystal oscillators and thermocouples
Working principle of temperature sensor
Using the NTC thermistor under a certain measurement power, the
resistance value drops rapidly as the temperature rises. Utilizing
this feature, the NTC thermistor can be used to determine the
corresponding temperature by measuring its resistance value, so as
to achieve the purpose of detecting and controlling the
temperature.
Conventional product electrical performance parameters
Part No. | R25℃ (KΩ) | B(K) 25/50℃ | Rated Power @25℃(mW) | Dissipation Factor(δ) (mW/℃) | Thermal time Constant (S) |
TS502□3274A | 5.0 | 3274 | 10-20 | 2-4 | 5-20 |
TS502□3435B | 5.0 | 3435 | 10-20 | 2-4 | 5-20 |
TS502□3470A | 5.0 | 3470 | 10-20 | 2-4 | 5-20 |
TS502□3950A | 5.0 | 3950 | 10-20 | 2-4 | 5-20 |
TS103□3274A | 10.0 | 3274 | 10-20 | 2-4 | 5-20 |
TS103□3435B | 10.0 | 3435 | 10-20 | 2-4 | 5-20 |
TS103□3470A | 10.0 | 3470 | 10-20 | 2-4 | 5-20 |
TS103□3950A | 10.0 | 3950 | 10-20 | 2-4 | 5-20 |
TS103□4100A | 10.0 | 4100 | 10-20 | 2-4 | 5-20 |
TS153□3950A | 15.0 | 3950 | 10-20 | 2-4 | 5-20 |
TS153□4100A | 15.0 | 4100 | 10-20 | 2-4 | 5-20 |
TS203□3950A | 20.0 | 3950 | 10-20 | 2-4 | 5-20 |
TS203□4100A | 20.0 | 4100 | 10-20 | 2-4 | 5-20 |
TS223□4200A | 22.0 | 4200 | 10-20 | 2-4 | 5-20 |
TS403□3928A | 40.0 | 3928 | 10-20 | 2-4 | 5-20 |
TS503□3950A | 50.0 | 3950 | 10-20 | 2-4 | 5-20 |
TS503□4100A | 50.0 | 4100 | 10-20 | 2-4 | 5-20 |
TS104□3950A | 100.0 | 3950 | 10-20 | 2-4 | 5-20 |
TS104□4100A | 100.0 | 4100 | 10-20 | 2-4 | 5-20 |
TS104□4400A | 100.0 | 4400 | 10-20 | 2-4 | 5-20 |
Application
