Guangdong Uchi Electronics Co.,Ltd
Guangdong Uchi Electronics Co.,Ltd Manufactuer of Varistor, Thermistor, Capacitor,Fuse & Resistor since 2006 !
Add to Cart
CWF5 Brass Hex Thread Incar Temperature Sensor 8KOHM 1% For Auto Temperature Control Module
Description
Thermistor probes are invaluable for sensing temperature levels in a variety of industries ranging from HVAC and food handling to automotive and laboratory research. In such applications, it's critical that the thermistor probe used is accurate to ensure reliable thermal monitoring.
A world-class provider of thermistors and thermistor probes and assemblies, We offers temperature probes designed and built from the ground up. The thermistors we use are created from a precise blend of raw materials and processed using proprietary techniques that result in superior discrete components, probes and assemblies.
PDF File:
NTC Temperature Sensor Profile 1 of 2.pdf
NTC Temperature Sensor Profile 2 of 2.pdf
Dimension(unit:mm)
Series: CWF 5
Application: Apply to in-car temperature control module
Assembly: Fixed by thread
Features
Fast response time
Moisture proof,waterproof
Easily assemble
Customized available
Technical specifications:
Chips-NTC thermistor used
Workshop of high quality and high performance NTC Thermistor
We have the unique process and leader core technology with proprietary intellectual property rights of ceramic powder equipment,made of chips,high performance NTC Automatic batch production.
We have more than 12 series of high performance NTC thermistors automatic production line,products have the advantages of large production,high quality,good coherence,high reliability,besides it can be made of many kinds of NTC temperature sensors,it also can be supplied to other factories of NTC sensors,and exported in large quantities to overseas.
| |
Part numbering
Normal models
| CWF1 Epoxy resin coating
| |
| CWF2 Aluminum, copper, stainless steel cap
| |
| CWF3 Plastic cap
|
|
| CWF4 Fixed sheet metal
|
|
| CWF5 Special shape
|
|
NTC Temperature sensor -- a glance at workshop
Advantages and characteristics of Auto Temperature Sensor
(Highest tolerance can be reach ±0.02℃) (Years of drif rate ≤1‰)
Operating temperature and environment of NTC temperature sensor depend on specific performance of its core element and lead wire:
►Different NTC thermistor using in the NTC temperature sensors with the following different operating temperature:
Chip or MF52A,MF51E,MF55: temperature resist grade 125℃,actual temperature resist grade 150℃
MF58: temperature resist grade 200℃,actual temperature resist grade 250℃
MF51: temperature resist grade 200℃,actual temperature resist grade 250℃
Special MF51: temperature resist grade 250℃,actual temperature resist grade 300℃
Weldless chip:temperature resist grade 450℃,actual temperature resist grade 500℃
►Operating environment
In the environment of high temperature,high humidty and high corrosion,we suggest to use glass sealed type thermistor as the core element.And MF51 type will be the best NTC thermistor in high humidity environment.
►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.
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%
|
| 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%
|
Introduction of test and inspection equipments
| |
| Name : Laser particle size analyzer Function : Analyse material of laser particle size | Name : Vacum & high temperature dry oven Function : high temperature aging test |
| |
| Name : Spectrum analyzer Function : analyze harmful substance content of products | Name : Electrolytic thickness gauge Function : Used for testing coating thickness of raw material |
| |
| Name : Constant temp oil bath instrument Function : test ambient temperature at constant point resistance (tolerance ±0.002℃) | Name : Low Temperature precision test sink Function : Test temperature at constant point resistance during -70℃~0℃ (tolerance ±0.01℃) |
| |
| Name : DC constant voltage and constant current power supply (high current) Function : Test U-I Curve | Name : High precision thermistor sorter Function : Test resistance of thermistor |
| |
| Name : Dissipation and thermal time constant testing instrument Function : Test dissipation and thermal time constant | Name : NTC Impact tester Function : Test impulse capacitance which products can endure |
| |
| Name : Withstand voltage test instrument Function : Test insulation withstand voltage | Name : DC constant voltage power supply Function : Test rated power consumption |
| |
| Name : Projector Function : Test out appearance and inner structure | Name : Elongation rate instrument Function : Test elongation rate of leads |
| |
| Name : Overload aging test machine Function : Electricity aging test of temp measurement products | Name : Chemical experiment table Function : Chemical blending |
| Name : Aging stage Function : Test aging reliability of product |