50K Cermet (Pack of 5)
50K Cermet (Pack of 5)
The 50K Cermet (Pack of 5) is a set of five thermistor elements, each with a resistance value of 50 kilohms at a temperature of 25C. These ceramic-metal composite thermistors, also known as Cermet thermistors, are designed to measure temperature with high accuracy and stability.
The primary function of the 50K Cermet thermistors is to convert temperature changes into corresponding electrical resistance changes. This allows them to be used in various applications such as temperature measurement, control, and compensation in electronic circuits.
| Resistance at 25C (R25) | 50 kilohms 1% |
-50C to 150C
1% or better
1%
Excellent
Milliseconds
Low
Up to 1 V
-50C to 150C
| The 50K Cermet thermistors are suitable for a wide range of applications, including |
Temperature measurement and control in industrial automation
HVAC systems
Medical devices
Automotive systems
Consumer electronics
Industrial sensors and transducers
Handle the thermistors with care to avoid mechanical shock or damage.
Avoid exposing the thermistors to high voltages or currents.
Use a suitable thermal interface material to ensure good thermal contact between the thermistor and the heat source.
Follow proper soldering and assembly techniques to prevent damage to the thermistors.
By providing a comprehensive overview of the 50K Cermet thermistors, this documentation aims to help engineers, designers, and hobbyists understand the capabilities and limitations of these components, enabling them to make informed decisions when selecting temperature sensors for their projects.
Component Documentation: 50K Cermet (Pack of 5)The 50K Cermet is a high-precision thermistor component designed for accurate temperature measurement in a wide range of applications. This component is available in a pack of 5, making it ideal for projects that require multiple temperature sensors.Component Specifications:Resistance: 50k at 25C
Accuracy: 1% at 25C
Temperature Range: -50C to 150C
Response Time: 10 seconds
Operating Voltage: 3.3V to 5VCode Examples:### Example 1: Basic Temperature Measurement with ArduinoIn this example, we will use the 50K Cermet thermistor to measure the temperature using an Arduino board.```cpp
const int thermistorPin = A0; // Analog input pin for the thermistorvoid setup() {
Serial.begin(9600);
}void loop() {
int sensorValue = analogRead(thermistorPin);
float voltage = sensorValue 5.0 / 1023.0;
float temperature = (voltage - 0.5) / 0.01; // Calculate temperature using the Steinhart-Hart equation
Serial.print("Temperature: ");
Serial.print(temperature);
Serial.println(" C");
delay(1000);
}
```### Example 2: Raspberry Pi (Python) with ADC ConversionIn this example, we will use the 50K Cermet thermistor with a Raspberry Pi and an ADC (Analog-to-Digital Converter) module to measure the temperature.```python
import time
import Adafruit_ADS1x15# Create an ADS1115 ADC instance
adc = Adafruit_ADS1x15.ADS1115()# Set the gain to 1 (default)
gain = 1while True:
# Read the ADC value from channel 0
adc_value = adc.read_adc(0, gain)# Calculate the voltage from the ADC value
voltage = adc_value 3.3 / 32767.0# Calculate the temperature using the Steinhart-Hart equation
temperature = (voltage - 0.5) / 0.01
print("Temperature: {:.2f} C".format(temperature))
time.sleep(1)
```### Example 3: ESP32 (MicroPython) with Built-in ADCIn this example, we will use the 50K Cermet thermistor with an ESP32 board and its built-in ADC to measure the temperature.```python
import machine
import time# Create an ADC instance
adc = machine.ADC(machine.Pin(32)) # Pin 32 is an analog input on the ESP32while True:
# Read the ADC value
adc_value = adc.read_u16()# Calculate the voltage from the ADC value
voltage = adc_value 3.3 / 65535.0# Calculate the temperature using the Steinhart-Hart equation
temperature = (voltage - 0.5) / 0.01
print("Temperature: {:.2f} C".format(temperature))
time.sleep(1)
```These examples demonstrate how to use the 50K Cermet thermistor with various microcontrollers and programming languages. The Steinhart-Hart equation is used to convert the voltage reading from the thermistor to a temperature value.