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Image of Vishay BC Components PTCEL Thermistors - Overview

PTCEL thermistors are ceramic-based doped barium titanate. They have a non-linear positive temperature coefficient of resistance. Below the Curie temperature (switch temperature), resistance is low and does not change much over a wide temperature range. However, when the temperature increases past the Curie temperature, the resistance increases exponentially with small change in temperature. PTC resistance also drops when higher voltages are applied.

PTM Published on: 2021-08-10