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Car Battery Temperature Measuring Injection Silicone NTC Temperature Sensor 4.7k Ohm 3470
Description Of The NTC Temperature Sensor 4.7k Ohm 3470
With the widespread application of electric vehicles, people have higher and higher requirements for battery safety. As a parameter to measure battery status, temperature is an important monitoring object for battery safety. Traditional temperature sensors have problems such as large volume and complicated packaging. Due to this limitation, the prior art can only monitor the overall temperature of the battery box, and cannot perform differential temperature monitoring on a single battery.
Features Of The NTC Temperature Sensor 4.7k Ohm 3470
● Application description: Suitable for lithium battery
temperature control module;
● Assembly method: Silicone card slot assembly.
● The assembly method is simple and firm.
● The resistance value and B value can be determined according to customer needs.
● The injection molding appearance and wire of the end can be customized.
● The wire nose series is specially designed for negative
temperature coefficient thermistor temperature sensors.
● Long-term stability and anti-drift.
● High precision resistance and B value, good consistency and
interchangeability. (The tolerance of resistance value and B value
can be 1%)
● High sensitivity and fast response speed.
● Good insulation, mechanical shock resistance, bending resistance
and high reliability.
● High temperature measurement accuracy.
Application Of The NTC Temperature Sensor 4.7k Ohm 3470
• New energy charging station NTC temperature sensor
• Smart Battery Management System (BMS) thermistor
• Lithium-ion electric vehicle battery energy storage battery PACK
temperature sensor
• Temperature probe for temperature detection of electric car
charging gun head
• Use NTC temperature sensor to monitor battery temperature
during charging
Specification Of The NTC Temperature Sensor 4.7k Ohm 3470
| Description | SEMITEC Series Name | Temperature Range |
| Miniature film thermistor | FT thermistor | ~40 ℃ to 250 ℃ |
| Miniature thin film sensor probe | Fµ thermistor | ~10 ℃ to 70 ℃ |
| Thin film thermistor | JT thermistor | ~40 ℃ to 100 ℃ |
| Ultra-precision thermistor | AP thermistor | ~60 ℃ to 150 ℃ |
| High precision thermistor | AT thermistor | ~50 ℃ to 110 ℃ |
| High sensitivity thermistor | ET thermistor | ~50 ℃ to 125 ℃ |
| High temperature thermistor | NT thermistor | ~50 ℃ to 300 ℃ |
| SMD thermistor | KT thermistor | ~40 ℃ to 125 ℃ |
| High temperature thermistor | CT thermistor | ~50 ℃ to 250 ℃ |
NTC Thermistors Of The NTC Temperature Sensor 4.7k Ohm 3470
Reliability Test Of The NTC Temperature Sensor 4.7k Ohm 3470
| 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% |
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.
