Strong electrolytic capacitor using tantalum or aluminium@ and preventing overheating

摘要

The capacitor has a capacitor element (9) with a chip (10) and an anode wire (11) which extends beyond a first end surface (10a) of the chip (10). The chip has a second end surface (10b) opposite the first (10a) and a side surface (10c) between the ends (10a, b). An anode terminal (12) is electrically connected to the anode wire (11). A cathode terminal (13) is paired with anode (12). A melt fuse wire (14) with a first end (14a) is electrically connected to the chip side (10c). A second end (14b) is electrically connected to the chip side (10c). A second end (14b) of the fuse wire (14) is electrically connected to the cathode (13). A resin packaging (15) encloses the capacitor element (9), part of the anode (12), part of the cathode (13) and the fuse wire (14). An insulating layer (17) is formed on at least the side surface (10c) of the chip (10) near the second end (10b). This contacts the fuse wire (14) and supports its.