50kΩ NTC Thermistor Thermal Resistor (NTC-MF52AT)

50kΩ NTC Thermistor Thermal Resistor (NTC-MF52AT) Overview

The 50kΩ NTC Thermistor (NTC-MF52AT) is a compact, high-precision temperature sensor using Negative Temperature Coefficient technology. With a nominal resistance of 50kΩ at 25°C, it provides high sensitivity and repeatable performance for temperature sensing, compensation, and overtemperature protection in electronics, automotive, battery and HVAC applications.

Key Features

• Resistance: 50kΩ at 25°C
• NTC design: resistance decreases as temperature increases
• High sensitivity and fast thermal response
• Epoxy-sealed bead construction for mechanical strength and insulation
• Small footprint for tight spaces and embedded designs

Technical Specifications

• Part number: NTC-MF52AT
• Nominal resistance: 50kΩ @ 25°C
• Type: NTC (Negative Temperature Coefficient)
• Package: epoxy-sealed bead with lead wires
• Operating temperature range: typically available for standard ambient sensing (refer to datasheet for exact limits)
• Tolerance and beta value: consult manufacturer datasheet for exact Beta constant and tolerance bands when designing precision circuits

Applications

• Temperature sensing in electronic devices and control boards
• Battery pack temperature monitoring and cell protection
• Overheating protection in power supplies and chargers
• Home appliances, HVAC systems, and thermostats
• Automotive electronics and medical monitoring equipment
• DIY electronics, robotics, and microcontroller projects

Using the 50kΩ NTC Thermistor with Microcontrollers

This thermistor is commonly used with ADC inputs on microcontrollers (Arduino, ESP32, Raspberry Pi ADC add-ons). The simplest interface is a voltage divider paired with a stable reference resistor:

• Connect thermistor as one leg of a voltage divider to an ADC input.
• Choose a fixed reference resistor near 50kΩ for best sensitivity around room temperature, or select a different value to center the measurement range.
• Use the Steinhart-Hart or Beta equation to convert resistance to temperature for improved accuracy.

Typical Circuit Example

Voltage divider: Vout = Vcc * (Rfixed / (Rfixed + Rthermistor)). Measure Vout with ADC, convert to resistance, then to temperature. For quick prototypes, a 10k to 100k fixed resistor can be used depending on desired sensitivity and ADC input range.

Installation, Handling and Calibration

• Minimize self-heating by using small measurement currents to avoid altering the thermistor temperature.
• Solder leads carefully and avoid prolonged high temperatures near the bead to preserve accuracy.
• For precise applications, perform calibration against a known reference or use the Beta/Steinhart-Hart parameters from the datasheet.

Ordering Information and Compatibility

Part: NTC-MF52AT, nominal 50kΩ at 25°C. Compatible with common measurement circuits and microcontroller platforms. Check supplier datasheet for lead length, tolerance options and beta constant when ordering for mass production.

Note: Images are for illustration purposes only.