A ceramic applied electronic device comprising: a ceramic element having a base end portion; terminal electrodes on the base end portion of the ceramic element; lead wires for connection with an external apparatus, the lead wires being led out from the ceramic applied electronic device; two insulators each holding contacts that are connected to the lead wires and being arranged on both surfaces of the base end portion of the ceramic element; two spring components (60, 60', 60") each being located on an outer surface of a corresponding one of the two insulators and each having a flat plate portion parallel to the outer surface and a spring portion (62, 64, 67) supported by the flat plate portion; and a cylindrical sleeve (70, 70'), wherein the spring portion (62, 64, 67) of each of the two spring components (60, 60', 60") is elastically deformed by attachment of the sleeve (70, 70') to the two spring components (60, 60', 60"), the two insulators hold the base end portion of the ceramic element from both sides by being pushed by the flat plate portions of the two spring components (60, 60', 60") in directions in which the two insulators are brought closer to each other, and the contacts are pushed against the terminal electrodes, characterized in that the spring portion (62, 64, 67) of each of the two spring components (60, 60', 60") has an inclined surface (62b, 64b, 68) for receiving, from the sleeve (70, 70') which moves toward the two spring components (60, 60', 60") along the ceramic element, a force toward the two insulators, and the attachment of the sleeve (70, 70') is achieved through the movement of the sleeve (70, 70') along the ceramic element. a ceramic element having a base end portion; terminal electrodes on the base end portion of the ceramic element; lead wires for connection with an external apparatus, the lead wires being led out from the ceramic applied electronic device; two insulators each holding contacts that are connected to the lead wires and being arranged on both surfaces of the base end portion of the ceramic element; two spring components (60, 60', 60") each being located on an outer surface of a corresponding one of the two insulators and each having a flat plate portion parallel to the outer surface and a spring portion (62, 64, 67) supported by the flat plate portion; and a cylindrical sleeve (70, 70'), wherein the spring portion (62, 64, 67) of each of the two spring components (60, 60', 60") is elastically deformed by attachment of the sleeve (70, 70') to the two spring components (60, 60', 60"), the two insulators hold the base end portion of the ceramic element from both sides by being pushed by the flat plate portions of the two spring components (60, 60', 60") in directions in which the two insulators are brought closer to each other, and the contacts are pushed against the terminal electrodes, characterized in that the spring portion (62, 64, 67) of each of the two spring components (60, 60', 60") has an inclined surface (62b, 64b, 68) for receiving, from the sleeve (70, 70') which moves toward the two spring components (60, 60', 60") along the ceramic element, a force toward the two insulators, and the attachment of the sleeve (70, 70') is achieved through the movement of the sleeve (70, 70') along the ceramic element.