Electronic – What component may this be


What component is this? They have a temperature printed, and a part code, but both are pretty much erased in the purple part. The orange one is a bit more readable, but not much. I think they may be resistors, but I'm not sure.

Unknown components

This is the information I can read from both parts:

  • Orange: T1 = 169 °C; D167PHMP
  • Purple: 184 °C

The measured resistance on both seems to be about 3-5 Ω.

Best Answer

Those are thermal fuses. They break the connection permanently once a certain temperature is reached to protect devices from overheating and possibly causing fire.