Stable 5K 10K 100KF3950 high-precision thermistor sensor special
thermistor for dehumidifier and air-conditioning temper
NTC temperature sensors are usually composed of 2 or 3 metal
oxides, mixed in a fluid-like clay, and calcined into a dense
sintered ceramic in a high-temperature furnace. Oxygen-bonded
metals tend to donate free electrons. Ceramics are generally
excellent insulators. But only theoretically, this is the case for
thermistor-type ceramics when the temperature approaches absolute
zero. However, as the temperature increases to more common ranges,
thermal excitations eject more and more free electrons. As more
electrons carry current through the ceramic, the effective
resistance decreases. Resistance changes very sensitively with
temperature. A typical change is a decrease of (-)7[%] to 3[%] per
degree Celsius. This is the most sensitive of any sensor suitable
for use over a wide temperature range.
The rated room temperature resistance depends on the resistivity of
the base material, the size and geometry, and the contact area of
the electrodes. Thick and narrow thermistors have relatively high
resistance, while thin and wide shapes have lower resistance.
Actual size is also very flexible, they can be as small as .010
inches or very small diameter. There is almost no limit to the
maximum size, but usually under half an inch applies.
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 |
Material, type and size:
Thermistors are bulk semiconductor devices and as such can be
manufactured in a variety of forms. More common ones include discs,
beads and rods. Sizes do vary from 1mm beads to discs a few
centimeters in diameter and thickness.
There are different types of thermistors, most of which respond
differently to changes in temperature. Thermistors are not linear
and their response curves vary from type to type. Some thermistors
have a nearly linear temperature-resistance relationship, others
have a sharp change in slope (sensitivity) at a specific
characteristic temperature.
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
