A plug-in varistor module fits standard junction boxes, avoiding conduit cutting while enabling compact surge protection and field replacement.
Different internal electrode widths keep overlap area stable despite position shifts, preserving varistor characteristics and ESD resistance.
Voltage terminals with different local TCR values enable current correction that reduces temperature-driven sensing error.
Projecting and recessed shunt resistor features distort equipotential lines to lower TCR and improve current detection accuracy.
An annealed amorphous-crystalline resistor film raises resistivity while keeping temperature coefficient low in thin semiconductor resistor elements.
Controlled voids and mixed crystal-grain regions in a sintered metal layer reduce ceramic-body stress and help prevent cracking.
A voided functioning core and lower-void outer shell improve heat flow to the substrate, helping surge absorbers handle current more reliably.
A multi-region sintered metal layer with two metals and glass blocks plating-solution moisture paths and protects ceramic component stability.
A gap-centered PTC layer with adjacent high-resistance regions cuts trip time while maintaining resistance to limit overcurrent arcing damage.
Electrode cut portions parallel to the joint area let shunt resistors tune TCR geometrically instead of relying on resistance-element material.
A higher-resistance bridge across shunt resistor electrodes offsets temperature-driven resistance change and improves current sensing stability.