Abstract: A coil component that includes a drum-shaped core with an upper flange and a lower flange, a winding wound around the core, and an exterior resin between the upper flange and lower flange of the core. The exterior resin includes an inorganic filler at 91 to 95 mass % with respect to the exterior resin, and a resin that has more than one glass transition temperature and has a phase-separated structure. A flange spacing distance between the upper flange and the lower flange is 1.0 mm or less.

Abstract: A coil component that includes a drum-shaped core with an upper flange and a lower flange, a winding wound around the core, and an exterior resin between the upper flange and lower flange of the core. The exterior resin includes an inorganic filler at 91 to 95 mass % with respect to the exterior resin, and a resin that has more than one glass transition temperature and has a phase-separated structure. A flange spacing distance between the upper flange and the lower flange is 1.0 mm or less.

Abstract: Compositions are described comprising thermoplastic polyester resins comprising polyester molecules ending in terminal groups, wherein all or a part of the terminal groups are represented by the general formula --R--SO.sub.3 L, wherein R is a divalent aliphatic hydrocarbon having 1-20 carbon atoms and L is an alkali metal; an inorganic compound mixture, wherein said inorganic compound mixture comprises one or more compounds selected from the group consisting of: inorganic compounds consisting of M, Mg, Si, O and F and inorganic compounds consisting of M, Mg and F, wherein M is an alkali metal; and wherein the energy of said composition satisfies the following formulas (1) and (2):U.ltoreq.1,300 (cal/mole) (1).sigma..times..sigma.e<2.8.times.10.sup.5 (cal.sup.2 /m.sup.4)(2)wherein U is an activation energy, .sigma. is a lateral surface energy and .sigma.e is a fold surface energy.