| 摘要 |
PROBLEM TO BE SOLVED: To prevent a fuse solder from slipping off a board to lose a fuse function at the abnormal case when a large current flows. SOLUTION: A base body 17 is provided with a half-separation base 18 which is connected to it only through a narrow connection part 17c for hardness of current flow. A solder fuse 7 is so provided as to cover the base body 17 and the half-separation base 18 to constitute a temperature fuse 14. Even if a surface of a solder 7 that contacts the base body 17 melts after the base body 17 heats up significantly at such abnormal time when a large current flows into the resistor circuit 2, the half-separation base 18 where a current is hard to flow is slower in temperature rising than the base body 17 where a current is easy to flow to retain the solder 7, thus preventing it from slipping off the board. COPYRIGHT: (C)2004,JPO
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