PT1000 Series Platinum Temperature Sensors
The PT series are designed for large volume applications where long term stability, interchangeability and accuracy over a large temperature range are vital.The temperature sensor consists of a photo-lithographically structured, high-purity platinum coating arranged in the shape of a meander. The platinum thin film structures are laser trimmed to form resistive paths with very precisely
defined basic value of the resistivity. The sensors are covered with a glass passivation layer; to protect the sensor against mechanical and chemical damage
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Thermal-links/Thermal cut off/Thermal fuse
Alloy Thermal-link/Thermal Cutoff(TCO) is defined as a non-resettable protective device functioning one time only.It is widely used in electrical equipment.Alloy TCO is mainly consist of fusible alloy,flux, plastic or ceramic case,sealant epoxy and lead wires.Normally, fusibel alloy is jointed to the two lead wires.Under abnormal conditions, when the temp reaches to the fusing temp of alloy TCO, the fusible alloy melts and quickly retracts to the two lead wire ends with the aid of the flux and disconnects the circuit completely.
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