Thermistors & Temperature Sensors

When faced with thousands of thermistor types, selection may cause considerable difficulties. In this technical article, I will introduce you to some important parameters to keep in mind when choosing a thermistor, especially when the two commonly used thermistor types for temperature sensing (negative temperature coefficient NTC thermistor Resistance or silicon-based linear thermistor). NTC thermistors are widely used because of their low price, but they provide low accuracy at extreme temperatures. Silicon-based linear thermistors can provide better performance and higher accuracy in a wider temperature range, but they are usually more expensive. In the following we will introduce that other linear thermistors that are currently on the market can provide more cost-effective high-performance options to help solve a wide range of temperature sensors uses without increasing the overall cost of the solution.

The thermistor suitable for your NTC thermistor application will depend on many parameters, such as:

• Bill of Materials (BOM) cost.

  
  

• Resistance tolerance.

  
  

• Calibration points.

  
  

• Sensitivity (change in resistance per degree Celsius).

  
  

• Self-heating and sensor drift.

The thermistor itself is not expensive. Since they are discrete, the voltage drop can be changed by using additional circuits. For example, if you are using a non-linear NTC thermistor and want a linear voltage drop across the device, you can choose to add an additional resistor to help achieve this feature. However, another alternative that can reduce the BOM and total cost of the solution is to use a linear thermistor that provides the required voltage drop by itself. The good news is that with our new linear thermistor series, these two. This means that engineers can simplify designs, reduce system costs, and reduce printed circuit board (PCB) layout size by at least 33%.

Barbecues, it's a funny way to enjoy food, very popular as outdoor activity. During the barbecue, we often encounter burnt or undercooked food. Eating such food is very harmful to our body. So many people now use meat thermometer when grilling. Digital bbq thermometer can help us monitor the temperature of food, in case to eat raw food, which may lead to bad stomachs.

Our meat thermometer uses a glass bead thermistor, which can withstand the temperature to 350 degrees, and the response time shorter to 3 seconds. In order to better thermometer the temperature of the food, we use stainless steel probe, thereby ensuring the deliciousness and safety of the food.