Mass Resistors TRIZ Cases
- NTC Inrush Current Limiter With Expansion-Matched Contacts
Composite copper-Invar or Kovar contacts and sintered silver joints cut thermal stress in NTC inrush limiters while keeping voltage drop low.
- Parallel Varistor Wafer Assembly for Overvoltage Thermal Protection
Multiple parallel varistor wafers share surge energy and use fail-safe current redirection to prevent SPD overheating during prolonged overvoltage.