A removable device for retaining electrical contacts, having: a rigid element for holding electrical contacts including a plurality of housings that are configured to accept the electrical contacts, the lateral walls of the holding element that are adjacent to the housings having a plurality of openings that each lead into one housing of the plurality of housings of the holding element; and an elastic element for retaining the electrical contacts in the holding element including a plurality of sprung blades that are arranged facing the openings leading into the housings of the rigid holding element so as to retain the electrical contacts in the housings of the holding element. The invention further relates to a soldering method implementing such a device.