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Waterproof NTC Temperature Sensor 10K B3977 Accuracy 1% Sealed Thermistor Probe

    Buy cheap Waterproof NTC Temperature Sensor 10K B3977 Accuracy 1% Sealed Thermistor Probe from wholesalers
     
    Buy cheap Waterproof NTC Temperature Sensor 10K B3977 Accuracy 1% Sealed Thermistor Probe from wholesalers
    • Buy cheap Waterproof NTC Temperature Sensor 10K B3977 Accuracy 1% Sealed Thermistor Probe from wholesalers
    • Buy cheap Waterproof NTC Temperature Sensor 10K B3977 Accuracy 1% Sealed Thermistor Probe from wholesalers
    • Buy cheap Waterproof NTC Temperature Sensor 10K B3977 Accuracy 1% Sealed Thermistor Probe from wholesalers
    • Buy cheap Waterproof NTC Temperature Sensor 10K B3977 Accuracy 1% Sealed Thermistor Probe from wholesalers

    Waterproof NTC Temperature Sensor 10K B3977 Accuracy 1% Sealed Thermistor Probe

    Ask Lasest Price
    Brand Name : linkun
    Model Number : Electric Temp Sensor 10KF3977
    Certification : CE / ROHS / UL / TUV / SGS
    Price : Negotiation
    Payment Terms : T/T, L/C, Western Union
    Supply Ability : 24 million per year
    Delivery Time : Negotiation
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    Waterproof NTC Temperature Sensor 10K B3977 Accuracy 1% Sealed Thermistor Probe

    Waterproof NTC temperature sensor 10K B3977 accuracy 1% sealed thermistor probe

    The accuracy of the temperature sensor should reach ±2%~±5%RH. If it cannot reach this level, it is difficult to use it as a measuring instrument. It is difficult for the temperature sensor to achieve the accuracy of ±2%~±3%RH. The given properties are measured at room temperature (20°C ± 10°C) and in clean gas. In actual use, due to the influence of dust, oil and harmful gases, aging will occur and the accuracy will decrease after a long time of use. The accuracy level of the temperature sensor should be judged in combination with its long-term stability. Generally speaking, long-term stability and use The lifespan is the first issue affecting the quality of the temperature sensor. There are very few products whose annual drift is controlled at 1%RH level, generally around ±2%, or even higher.


    ►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:

    ● High sensitivity and fast response
    ● Resistance value and B value have high precision, good consistency and interchangeability
    ● Using double-layer encapsulation technology, it has good insulation sealing and resistance to mechanical collision and bending resistance
    ● The structure is simple and flexible, and can be customized according to different design requirements of customers.

    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.


    Product Description

    Dongguan Linkun Electronic Technology Co., Ltd.
    Main technical parameters of sensor series thermistor:
    ModelRated resistance value (R25)B valueOperating temperatureDissipation coefficientThermal time constant
    Resistance value (KΩ)Allowable deviation (±%)Nominal value (K)(mW/℃)(S)
    CWF-102-34351±1% ±2% ±3% ±5%3435-40℃ ~ +120℃≥3.0 in still air≤6.0 in still air
    CWF-202-343523435
    CWF-2.252-39502.2523950
    CWF-472-39504.73950
    CWF-502-347053470
    CWF-502-395053950
    CWF-682-39506.83950
    CWF-103-3435103435
    CWF-103-3470103470
    CWF-103-3600103600
    CWF-103-3380103380
    CWF-103-3977103977
    CWF-103-4100104100
    CWF-153-3950153950
    CWF-203-3950203950
    CWF-233-3950233950
    CWF-303-3950303950
    CWF-333-3977333977
    CWF-403-3950403950
    CWF-473-4013474013
    CWF-503-3977503977
    CWF-503-3990503990
    CWF-503-4050504050
    CWF-104-39501003950
    CWF-104-39901003990
    CWF-104-42001004200
    CWF-204-38922003892
    CWF-204-39172003917








    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.



    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 ItemTest StandardTest methodPerformance requirements
    Zero Power ResistanceIEC 60539-1Immerse samples in the constant temperature bath at 25℃±0.005℃,test steady resistance

    Resistance tol ±1%


    B valueIEC60539-1Immerse samples in the constant temperature bath at 25℃,50℃(or 85℃), test steady resistance,and calculate B value

    Resistance tol ±1%


    Free fall

    IEC60068-2-32


    Fall height: 1.5±0.1m,Surface: Cement , 1 time

    No obvious damage, R25 △R/R≤±1%


    Insulation

    IEC60539-1


    500V pressure on insulation shell test insulation resistance

    >500MOhm


    Withstand voltageIEC60539-1

    Withstand voltage: 1500V/AC ,Leakage current:2mA Lasting: 60sec


    No obvious damage


    TensionIEC60068-2-21

    Pull uniform speed at the end, F>4.0KG(requested by customer)


    No obvious damage, R25 △R/R≤±1%


    VibrationQ/HBm 108-94Test frequency: 10~500Hz,swing: 1.2mm acceleration: 30m/s2 Direction X,Y,Z Time:8Hour/direction

    No obvious damage, R25 △R/R≤±1%


    Steady humidity and heatIEC60068-2-78Temp:40±2℃ Humidity:92-95%RH Time:1000±24Hour

    No obvious damage, R25 △R/R≤±1%


    Thermal time constantEC60539-1Immerse in 25℃ water,after thermal balance,immerse in 85℃,resistance arrives 63.2%,calculate total time

    <10 sec


    High temperature storageIEC60068-2-2Temp:125℃±5℃ Time: 1000±24HourNo obvious damage, R25 △R/R≤±1%
    Cold and thermal shockIEC60068-2-14

    -40℃~+125℃ T1:30min Cycle time:1000


    No obvious damage, R25 △R/R≤±1%


    Knock experimentIEC60068-2-77

    Acceleration:250m/s2 Pulse lasting: 6ms Knock times: 1000 Recovery time: 2 Hour


    No obvious damage, R25 △R/R≤±1%


    Low temperature storageIEC60068-2-1

    Temp: 40±2℃ Time: 1000±24Hour


    No obvious damage, R25 △R/R≤±1%


    Salt sprayIEC60068-2-11Temp: 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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