The invention relates to a printed circuit (10) to be inserted into a metal case (31) of an electronic detonator (30), comprising a plate (11) consisting of a dielectric material and electronic components (12) arranged on at least one face (11') of the plate (11). The plate (11) comprises a metallised section (13a, 13b) on at least one edge (11a, 11b) of the plate (11), the metallised section (13a, 13b) being electrically connected to a component (12a) of the printed circuit (10) and coming into contact with an inner wall (31a) of the metal case (31).
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