Patent ID: 7976314

Claim:
An adapter for providing connection between a lead terminal of an electronic component and a contact of a connecting device, the electronic component including a main body and the lead terminal extending from an end part of the main body, the adapter being a coil spring comprising: a first connecting part being a rod-like part or a tightly coiled part of tubular shape provided at an end of the coil spring, the first connecting part being adapted for electrical and mechanical connection to the lead terminal; a second connecting part being a coiled part of tubular shape provided at the other end of the coil spring, the second connecting part having such an inner diameter as to receive the end part of the main body of the electronic component with a slight clearance therebetween and being connectable to the contact electrically and mechanically; and an elastically deforming part being a loosely coiled part provided between the first and second connecting parts, the elastically deforming part having such an inner diameter as to receive at least one of the main body and the lead terminal and being elastically deformable in accordance with thermal expansion deformation or thermal contraction deformation in a length direction of the electronic component.