SELF-REGULATING PTC DEVICES HAVING SHAPED LAMINAR CONDUCTIVE TERMINALS

摘要

2092807 9206477 PCTABS00011 An electrical device (1) in which a conductive terminal (3, 9) is physically and electrically attached to a laminar resistive element (19) which has a first periphery by means of a laminar conductive element (21, 23). The three layers are positioned in such a way that the periphery of the conductive element does not extend beyond the first periphery and at least a part of the periphery of the conductive terminal lies within the first periphery. In a preferred embodiment the conductive element (21, 23) is solder and the periphery of the conductive terminal is shaped in such a way that no excess solder bridges from one laminar surface of the resistive element (19) to the other. Devices of the invention are useful as circuit protection devices.