PURPOSE: To provide the electronic parts with leads which minimizes the generation of an appearance defect and disconnection, etc., on the external lead terminals to be fitted to a metallized wiring layer deposited on an insulating base body by uniformly forming and depositing a plating metallic layer over the entire surface on the exposed outside surface of the external lead terminals.

CONSTITUTION: The external lead terminals 7 of the electronic parts with the leads constituted by mounting the external lead terminals 7 via brazing filler metals 8 to the metallized wiring layer 5 deposited on the insulating base body 1 are formed of a metal essentially consisting of a copper-nickel alloy contg. 0.5 to 30.0wt.% nickel and the balance copper or the metal formed by substituting ≤2.0wt.% of the copper of the copper-nickel alloy with at least one kind among iron, manganese and zinc.