MF51E103E3950
Precision NTC thermistors with ±0.5% accuracy and 3950K thermal coefficient
Manufacturer： cantherm
series introduction
# Introduction to the MF51E103E3950 Product Series
## 1. Overview
The MF51E103E3950 product series belongs to the realm of high - precision thermistors. Thermistors are crucial components in various electronic circuits, and this particular series is designed to offer accurate temperature sensing and control capabilities. These thermistors are widely used in industries where precise temperature monitoring is essential, such as automotive, medical, and industrial automation.
## 2. Product Naming Convention
- **MF51**: This is the basic model code for the thermistor series, which indicates the general type and design characteristics of the product within the manufacturer's product portfolio.
- **E**: It often represents a specific sub - series or a set of enhanced features or performance levels compared to other variants in the broader MF51 family.
- **103**: This number is related to the nominal resistance value of the thermistor. In the common resistance coding system, 103 means a nominal resistance of 10 × 10³ ohms or 10 kΩ at a specified reference temperature (usually 25°C).
- **E**: Another letter that may signify additional product - specific features, such as a particular tolerance class or a specific manufacturing process.
- **3950**: This value represents the B - value of the thermistor. The B - value is a key parameter that describes the relationship between the resistance of the thermistor and temperature. A B - value of 3950 K indicates a specific temperature - resistance characteristic curve, which is important for accurate temperature calculations.
## 3. Key Features
### High Precision
- The MF51E103E3950 series offers excellent resistance accuracy. With tight tolerance levels, it can provide highly reliable temperature - related resistance values. This precision is crucial in applications where even small temperature variations can have a significant impact on the performance of the overall system, such as in medical devices for patient temperature monitoring.
- The consistent B - value of 3950 K ensures a stable and predictable temperature - resistance relationship over a wide temperature range. This allows for accurate temperature calculations and control in different operating conditions.
### Wide Temperature Range
These thermistors can operate effectively over a broad temperature range. They can withstand both low - temperature environments, such as in cold storage applications, and high - temperature conditions, for example, in automotive engine compartments. This wide operating temperature range makes them suitable for a diverse set of applications.
### Fast Response Time
The MF51E103E3950 series has a relatively fast response time to temperature changes. This means that it can quickly detect and reflect any temperature variations in the surrounding environment. In applications like temperature control systems in industrial ovens, a fast - responding thermistor is essential to maintain the desired temperature accurately.
### Good Stability
Over time and with repeated use, these thermistors exhibit excellent stability. Their resistance values do not drift significantly, ensuring long - term reliability in continuous - operation applications. This stability is particularly important in applications where long - term, accurate temperature monitoring is required, such as in environmental monitoring stations.
## 4. Electrical Characteristics
### Resistance at 25°C
As indicated by the "103" in the product code, the nominal resistance of the MF51E103E3950 thermistors at 25°C is 10 kΩ. This value serves as a reference point for temperature - resistance calculations and is used to calibrate the thermistor in various circuits.
### B - Value
The B - value of 3950 K is a critical electrical characteristic. It is used in the Steinhart - Hart equation, which is commonly employed to calculate the temperature based on the
Images for reference
MF51E103E3950
MF51 Series Side