Quote:
Originally Posted by McMurdo
I've never seen an NTC fail in that way. Never. If they're grossly overloaded they fail safe-open. They are a safer bet all-round.
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I should have taken photos of two large NTC's that exploded/fractured in series with the compressor motor on one of my air con units. One split into fragments, the other melted into a pile of round globules in its central section. They can fail with dissipation even though they intrinsically try to protect themselves with reduced IsquaredR losses as their resistance drops with heat.