COIL COMPONENT

COIL COMPONENT

PROBLEM TO BE SOLVED: To provide a coil component less vulnerable to corrosion around locations where wires mainly made of Cu are wrapped on metal lead terminals. SOLUTION: A common mode choke coil 1 has a bobbin 2 whereon wires are wound; wound wires 10, 12; metal lead terminals 20a, 20b, 20c, 20d;...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: NISHIKAWA ZENEI, OI TAKAAKI, TAKAOKA HIDEKIYO, IGASHIRA KIYOAKI
Format: Patent
Sprache:eng
Schlagworte:
BASIC ELECTRIC ELEMENTS
ELECTRICITY
INDUCTANCES
MAGNETS
SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
TRANSFORMERS
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Beschreibung
Zusammenfassung:PROBLEM TO BE SOLVED: To provide a coil component less vulnerable to corrosion around locations where wires mainly made of Cu are wrapped on metal lead terminals. SOLUTION: A common mode choke coil 1 has a bobbin 2 whereon wires are wound; wound wires 10, 12; metal lead terminals 20a, 20b, 20c, 20d; a solder composition 25 for electrically and mechanically connecting ends (wrapped portions) 11a, 11b, 13a, 13b of the wound wires 10, 12 to the metal lead terminals 20a, 20b, 20c, 20d; and core members 22a, 22b. The cores of the wound wires 10, 12 are leads made of Cu, a Cu alloy, or the like, and their surfaces are coated with an insulating resin film. The solder composition 25 is a lead-free solder wherein Cu accounts for >5 but ≤9 in wt.% and Sn accounts for the rest. COPYRIGHT: (C)2004,JPO