Fast Response Ntc Thermistor Temperature Sensors For Water Dispenser 5k 1% High Accuracy
Fast Response Ntc Negative Temperature Thermistor Ntc Temperature Sensor For Water Dispenser 5k 1% High Accuracy
One of the most comprehensive ranges of temperature sensor and probe products in the world today are offered in the category of measurement and sensing products driven by temperature technologies. These include high temperature thermistors, gauge drivers, sensors, and elements. Our Advanced Sensors provides solutions to temperature sensing challenges faced by the various industry segments - such as medical, automotive, and telecommunications - across the globe.
Principle
Using 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.
►Design considerations and procedure of temperature sensor:
1. Choose the shape acoording to customer's design or assemble requirements, and confirm the thermistor.
2. Confirm the thermistor element and other materials according to customers' requirement
3. Choose the suitable resistance,B value and tolerance
4. Choose suitable moisture-proof and insulation technology to meet customer's requirement
5. Choose suitable encapsulation structure to meet performance requirements of mechanical shock resistance
6. Meet customer's special requirements.
Features
Fast reponse time
Moisture proof,waterproof
Easily assemble
Customized available
Technical specifications:
- Zero power resistance tolerance at 25deg: ±1%
- B value tolerance: ±1%
- Head material: Injection molding silicone
- Cable material : PVC,FEP or else
- Withstand voltage : ≥1500VAC
- Operating temperature Range : -40~
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Certificates for Raw Material
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All parts and processing is compliant with ROHS, CCC
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Certificates for Wire Harness Material
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UL/CSA,CE, VDE,SAA,CB,ISO9001 etc are avalable;
PA66 for connectors; copper or stainless steel for terminals
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Length
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As per customer’s request
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Connector Type
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Tyco, Delphi, Bosch, Deutsch, Yazaki, Sumitomo, FCI replacements
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Service
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Different series of customized CAD wire harness are available
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Applications
Temperature measurement and control of household air-conditioner, refrigerator, icebox,water heater,drinking
machine,radiator,dishwasher, disinfector,washing machine, drying machine,middle-or-low-temperature drying box and constant
temperature box.
Conventional product electrical performance parameters
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Part No.
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R25℃
(KΩ)
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B(K)
25/50℃
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Rated Power @25℃(mW)
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Dissipation Factor(δ)
(mW/℃)
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Thermal time
Constant (S)
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TS502□3274A
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5.0
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3274
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10-20
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2-4
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5-20
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TS502□3435B
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5.0
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3435
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10-20
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2-4
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5-20
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TS502□3470A
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5.0
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3470
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10-20
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2-4
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5-20
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TS502□3950A
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5.0
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3950
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10-20
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2-4
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5-20
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TS103□3274A
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10.0
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3274
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10-20
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2-4
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5-20
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TS103□3435B
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10.0
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3435
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10-20
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2-4
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5-20
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TS103□3470A
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10.0
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3470
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10-20
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2-4
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5-20
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TS103□3950A
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10.0
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3950
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10-20
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2-4
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5-20
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TS103□4100A
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10.0
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4100
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10-20
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2-4
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5-20
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TS153□3950A
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15.0
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3950
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10-20
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2-4
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5-20
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TS153□4100A
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15.0
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4100
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10-20
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2-4
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5-20
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TS203□3950A
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20.0
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3950
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10-20
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2-4
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5-20
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TS203□4100A
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20.0
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4100
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10-20
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2-4
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5-20
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TS223□4200A
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22.0
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4200
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10-20
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2-4
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5-20
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TS403□3928A
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40.0
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3928
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10-20
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2-4
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5-20
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TS503□3950A
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50.0
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3950
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10-20
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2-4
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5-20
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TS503□4100A
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50.0
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4100
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10-20
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2-4
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5-20
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TS104□3950A
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100.0
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3950
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10-20
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2-4
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5-20
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TS104□4100A
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100.0
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4100
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10-20
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2-4
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5-20
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TS104□4400A
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100.0
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4400
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10-20
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2-4
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5-20
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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.
Reliability Test
| Test Item | Test Standard | Test method | Performance requirements |
| Zero Power Resistance | IEC 60539-1 | Immerse samples in the constant temperature bath at 25℃±0.005℃,test steady resistance |
Resistance tol ±1%
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| B value | IEC60539-1 | Immerse samples in the constant temperature bath at 25℃,50℃(or 85℃), test steady resistance,and calculate B value |
Resistance tol ±1%
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| Free fall |
IEC60068-2-32
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Fall height: 1.5±0.1m,Surface: Cement , 1 time |
No obvious damage, R25 △R/R≤±1%
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| Insulation |
IEC60539-1
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500V pressure on insulation shell test insulation resistance |
>500MOhm
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| Withstand voltage | IEC60539-1 |
Withstand voltage: 1500V/AC ,Leakage current:2mA Lasting: 60sec
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No obvious damage
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| Tension | IEC60068-2-21 |
Pull uniform speed at the end, F>4.0KG(requested by customer)
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No obvious damage, R25 △R/R≤±1%
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| Vibration | Q/HBm 108-94 | Test frequency: 10~500Hz,swing: 1.2mm acceleration: 30m/s2 Direction X,Y,Z Time:8Hour/direction |
No obvious damage, R25 △R/R≤±1%
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| Steady humidity and heat | IEC60068-2-78 | Temp:40±2℃ Humidity:92-95%RH Time:1000±24Hour |
No obvious damage, R25 △R/R≤±1%
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| Thermal time constant | EC60539-1 | Immerse in 25℃ water,after thermal balance,immerse in 85℃,resistance arrives 63.2%,calculate total time |
<10 sec
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| High temperature storage | IEC60068-2-2 | Temp:125℃±5℃ Time: 1000±24Hour | No obvious damage, R25 △R/R≤±1% |
| Cold and thermal shock | IEC60068-2-14 |
-40℃~+125℃ T1:30min Cycle time:1000
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No obvious damage, R25 △R/R≤±1%
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| Knock experiment | IEC60068-2-77 |
Acceleration:250m/s2 Pulse lasting: 6ms Knock times: 1000 Recovery time: 2 Hour
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No obvious damage, R25 △R/R≤±1%
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| Low temperature storage | IEC60068-2-1 |
Temp: 40±2℃ Time: 1000±24Hour
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No obvious damage, R25 △R/R≤±1%
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| Salt spray | IEC60068-2-11 | Temp: 35±2℃ Collection hour : 1.0mL~2.0mL Time: determine per as actual demand |
No obvious damage, R25 △R/R≤±1%
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