May. 06, 2024
Thermistors, as semiconductor resistors sensitive to temperature changes, play an important role in various fields such as electronic products, medical equipment, and industrial control, as their resistance varies with temperature.
However, with the passage of time and the influence of external environments, thermistors may experience failures.
Once a thermistor fails, it not only affects the normal operation of equipment but also poses potential hazards. Therefore, measures need to be taken to deal with failed thermistors when they occur.
Reasons for Thermistor Failure:
Excessive or insufficient ambient temperature
Excessive or insufficient current
Aging of thermistor materials
Mechanical damage caused by collisions
Excessive humidity in the environment, among other factors.
Knowing the reasons for thermistor failure allows for appropriate measures to be taken to prevent faults from escalating and causing more serious consequences.
Measures After Thermistor Failure:
Disconnect the power supply
Firstly, immediately disconnect the power supply related to the thermistor to prevent damage to other components due to excessive current or voltage.
Replace the failed thermistor
After implementing emergency measures, promptly procure and replace the failed thermistor.
During the replacement process, ensure that the model and specifications of the new thermistor match those of the original to ensure its normal operation.
Change the working environment
Analyze the reasons for thermistor failure. If it is due to adverse working conditions, change to a suitable working environment to ensure the thermistor functions effectively.
For example, reduce temperature, humidity, and prevent chemical corrosion to extend the service life of the thermistor.
Improve circuit design
Inspect the device's circuit design to ensure that voltage, current, and other parameters are within the thermistor's tolerance range.
If there are flaws in the circuit design, promptly make improvements to prevent similar issues from recurring.
Strengthen maintenance and inspection
Regularly maintain and inspect thermistors, including cleaning and securing connections, to ensure they are in good working condition and guarantee the normal operation of electronic equipment.
Thermistor failure is a common issue in electronic devices. Taking measures from multiple perspectives to address thermistor failures ensures the normal operation of equipment.
This article was provided by JYH HSU (JEC) Electronics Ltd (or Dongguan Zhixu Electronic Co., Ltd.), an electronic components manufacturer who produces all kinds of capacitors and resistors. JEC factories hold ISO 9000 and ISO 14000 certifications.
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