Glossary Definition for PTC

Glossary Term: PTC 

Definition

Positive Temperature Coefficient (PTC): When the resistance of a component rises with temperature, it is said to have a positive temperature coefficient.

Example: Hewlett-Packard's first commercial product, an audio oscillator, used a common light bulb as a PTC element in the feedback circuit to maintain constant output amplitude regardless of frequency.

Synonyms
  • Positive Temperature Coefficient

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