Electric device for protecting electric circuit has positive temperature coefficient elements inserted between three substrates and linked in parallel between two end connections

摘要

Electric appliance (10) has first and second positive temperature coefficient (PTC) elements (20, 30) linked in parallel between first and second end connections (40, 50). PTC elements are placed between first, second and third substrates (60, 70, 80). First connection (40) is in direct contact with electrodes (100, 120) but not with electrodes (90, 110). Second connection (50) is in direct contact with electrodes (90, 110) but not with electrodes (100, 120).