A protective cap may be provided to protect and cover an image sensor without leaving any residue on the image sensor. The protective cap may include a cover and a number of side members. The cover may have a recess that ensures the protective cap does not directly contact the majority of the image sensor. The side members may include guiding side members that provide a flat surface to laterally restrain the image sensor. Clamping side members for holding the image sensor in place may also be included. The side members may have recessed portions for receiving the image sensor. The cover may have notches adjacent to the side members that allow the side members to flex when a bias force is applied to the side members. The side members may have guide holes that help align a tool that is used to apply the bias force.