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Address: No.1, Yixiang ,Liwu Industrial Park,Liwuyuan Village,Xihu District, Shilong Town,Dongguan 523325,Guangdong ,China
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Automobile Temperature Sensor Epoxy Resin Enameled Wire NTC Thermistor 6.8k 3977
R25(ohm):0.1K～1000K
Application:For Wireless charger, wireless charger, mobile power
supply, lithium battery protection board, etc
Description Of The Enameled Wire NTC Thermistor 6.8k 3977
Customized NTC thermistor 100K red enameled wire negative temperature coefficient thermistor wholesale, MF52 bead temperature measuring type thermistor is a small volume epoxy resin encapsulated NTC thermistor produced with new materials and new technology, with The advantages of high precision and fast response. The NTC series products produced by our company have the characteristics of high precision, good stability, short response time, wide temperature range and high consistency. If you have relevant product requirements, you can contact our sales staff.
Features Of The Enameled Wire NTC Thermistor 6.8k 3977
● MF51 Epoxy Resin NTC thermistor
● Widely used in temperature sensing
● Stable quality and reasonable preice
● Fast delivery (within 24hr)
● Quick response.
● Small size and fast response speed.
● The resistance value and B value can be determined according to customer needs.
● The assembly method is simple and firm.
Application range Of The Enameled Wire NTC Thermistor 6.8k 3977
● Electronic thermometers, medical equipment, medical instruments
● Temperature meter, temperature recorder, electronic heating toy
● Mobile power supply temperature measurement, aluminum battery
protection board
● Shower temperature sensor
● Home appliance control panel
● Aerospace
● Degassing application
Dimension in mm Of The Enameled Wire NTC Thermistor 6.8k 3977
Application Example Of The Enameled Wire NTC Thermistor 6.8k 3977
Selection parameters Of The Enameled Wire NTC Thermistor 6.8k 3977
| P/N | R25 | Beta 25/50 |
| MF52b-103□3380 | 10k | 3380 |
| MF52b-103□3977 | 10k | 3977 |
| MF52b-503□3950 | 50k | 3950 |
| MF52b-104□4200 | 100k | 4200 |
Precautions Of The Enameled Wire NTC Thermistor 6.8k 3977
Welding method: The metal body and the body are directly welded for
welding. Please do not use tin soldering to avoid false welding.
The welding time is controlled within 3.5 seconds
Do not test the enameled wire thermistor in the air. The
temperature in the air varies greatly and the measurement is very
inaccurate. It often produces deviations above 1-2°C. It must be
measured with a high-precision constant temperature oil tank. The
tested NTC is placed in the constant temperature oil tank. After
that, the temperature of the constant temperature bath must be
stabilized.
Reliability Test Of The Enameled Wire NTC Thermistor 6.8k 3977
| 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%
|
| 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%
|
| 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 voltage | IEC60539-1 | Withstand voltage: 1500V/AC ,Leakage current:2mA Lasting: 60sec
| No obvious damage
|
| Tension | IEC60068-2-21 | Pull uniform speed at the end, F>4.0KG(requested by customer)
| No obvious damage, R25 △R/R≤±1%
|
| 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%
|
| Steady humidity and heat | IEC60068-2-78 | Temp:40±2℃ Humidity:92-95%RH Time:1000±24Hour | No obvious damage, R25 △R/R≤±1%
|
| Thermal time constant | EC60539-1 | Immerse in 25℃ water,after thermal balance,immerse in 85℃,resistance arrives 63.2%,calculate total time | <10 sec
|
| 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
| No obvious damage, R25 △R/R≤±1%
|
| Knock experiment | IEC60068-2-77 | Acceleration:250m/s2 Pulse lasting: 6ms Knock times: 1000 Recovery time: 2 Hour
| No obvious damage, R25 △R/R≤±1%
|
| Low temperature storage | IEC60068-2-1 | Temp: 40±2℃ Time: 1000±24Hour
| No obvious damage, R25 △R/R≤±1%
|
| 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% |
