High Precision And High Stability NTC Temperature Sensor Using Double-Layer Encapsulation Process
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.
| 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 |
Features
Proven Stability and Reliability,
Cost effective solutions
Variety of metal and plastic housings and tubings designed for specific applications
Potted with different kinds of resin for good sensor protection
Available with special kinds of cables (2-core cables or stranded with PVC, Silicone, or Kynar insulation,cables with screen & other), connectors and other attachments
Provides good protection from the environment conditions
Proven high voltage strength and dynamic strength
Wide range of Resistance/Temperature, characteristics
Designed for temperature measurement, control and compensation
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.
Application
● Air conditioners, refrigerators, freezers, water heaters, water dispensers, heaters, dishwashers, disinfection cabinets, washing machines, dryers and other home appliances.
● Automobile air conditioner, water temperature sensor, intake air temperature sensor, engine
● Switching power supply, UPS uninterruptible power supply, frequency converter, electric boiler, etc.
● Intelligent toilet, electric blanket, etc.
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
Product Tags:
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Car Double Layer Temp Sensor NTC , New Energy Vehicles Thermistor Temp Sensor Images
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