Thermal-Links/Resistor Assemblies Structure and principle

Thermal-links / Resistor assemblies is a kind of product that installed thermal cutoff and wire wound resistance element in one ceramic case then sealing with silicone cement.

Otherwise, it's also a kind of parts that resistor heat generated itself or sence abnormal heat generated from external by excess current and interception circuit.

Construction

Radial lead type(left)　Axial lead type(right)
1 2 3 4 5
Insulation case Sealant Resistor Thermal-Links Lead wire

Operating principle

Functioning mode1 Functioned by excess current(left) Functioning mode2 Functioned by abnormal heat generated from external(right)