POSISTOR Meaning and
Definition
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A posistor refers to a type of electrical component or device that exhibits high positive temperature coefficient (PTC) characteristics. It is essentially a resistor whose resistance value increases with temperature. The term "posistor" is a portmanteau of "positive" and "thermistor," a similar device with a negative temperature coefficient.
A posistor is typically made from a ceramic material that contains additives. The resistance of a posistor is low at low temperatures, but it rapidly increases as its temperature rises. This characteristic is a result of the material's semiconductor properties. As the temperature increases, the number of charge carriers decreases, leading to a decrease in electrical conductivity and consequently an increase in resistance. This inherent property of posistors makes them suitable for various applications, particularly in temperature-sensing and control circuits.
In practical applications, posistors are commonly used as temperature sensors, self-resetting thermal switches, and temperature-compensating elements in circuits. For example, posistors can be employed in temperature control systems to limit excessive currents or protect sensitive components from overheating. Their PTC behavior ensures a self-regulating effect, reducing the risk of damage in circuits and electrical equipment.
Due to their unique characteristics, posistors play a significant role in managing temperature-related issues, especially in electronics and electrical engineering applications. Their versatility and self-regulating nature make them a valuable component for thermal management and protection in various devices and systems.
Common Misspellings for POSISTOR
- oosistor
- losistor
- -osistor
- 0osistor
- pisistor
- pksistor
- plsistor
- ppsistor
- p0sistor
- p9sistor
- poaistor
- pozistor
- poxistor
- podistor
- poeistor
- powistor
- posustor
- posjstor
- poskstor
- posostor
Etymology of POSISTOR
The word "posistor" is a portmanteau of two words: "positive" and "transistor".
"Positive" refers to the positive polarity of the current flow in electronic circuits, while "transistor" is a semiconductor device that amplifies or switches electronic signals and electrical power. The term "posistor" was coined to specifically describe a type of solid-state device that exhibits a positive temperature coefficient of resistance.
The etymology of "posistor" can thus be traced back to the combination of these two words to describe a specific type of electronic component.
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