Contact, connector and contact mounting board

A contact which electrically connects a first connected portion of a first board located downward of the contact in an up-down direction to a second connected portion of a second board located upward of the contact in the up-down direction, wherein:

• the contact has a mounting portion connected to the first connected portion, a resilient deformation portion extending from the mounting portion and having a cantilever shape and an expansion portion extending from the mounting portion;
• the resilient deformation portion is provided with a first contact portion to be brough into contact with the second connected portion and a second contact portion located between the first contact portion and the mounting portion in the up-down direction;
• the expansion portion is provided with a third contact portion;
• when the first contact portion is brought into contact with the second connected portion while the resilient deformation portion is resiliently deformed, the second contact portion and the third contact portion are brought into contact with each other in a lateral direction perpendicular to the up-down direction;
• and
• in a contact state where the second contact portion and the third contact portion are bought into contact with each other, a length of a second current path from the first contact portion to the mounting portion via the second contact portion and the third contact portion is shorter than a length of a first current path from the first contact portion to the mounting portion via the resilient deformation portion.