The ornamental design for a contactfield for a printed circuit board, as is shown and described.
FIG. 1 is a top perspective view of a contact field for a printed circuit board, showing our new design;
FIG. 2 is a bottom perspective view thereof;
FIG. 3 is a front elevation view thereof;
FIG. 4 is a rear elevation view thereof;
FIG. 5 is a right elevation view thereof;
FIG. 6 is a left elevation view thereof;
FIG. 7 is a top plan view thereof;
FIG. 8 is a bottom plan view thereof;
FIG. 9 is an enlarged bottom perspective view of the detail identified in FIG. 2; and,
FIG. 10 is an enlarged bottom elevation view of the detail identified in FIG. 8.
The equal spaced dashed lines depict the environment, which forms no part of the claimed design. The dash-dot-dot dashed lines define boundaries of the claimed design.