PTC yɛ abbreviation ma positive temperature coefficient, mpɛn pii no ɛkyerɛ semiconductor nneɛma anaa nneɛma a ɛwɔ ɔhyew nsusuwii a ɛyɛ papa kɛse. Mpɛn pii no, sɛ yɛreka PTC ho asɛm a, yɛreka ɔhyew a