High-frequency component provided with a shield case

A high-frequency component, comprising:

• a wiring substrate;
• a component mounted on a main surface of the wiring substrate;
• a columnar member including a conductive resin and standing on the main surface of the wiring substrate in a state where one end of the columnar member is fixed to the main surface of the wiring substrate;
• and
• a shield case covering the component and the columnar member, wherein
• the shield case has a lid plate and a side plate, wherein the lid plate is disposed so as to face to the main surface of the wiring substrate, and the side plate extends from an edge of the lid plate toward the main surface of the wiring substrate,
• another end of the columnar member is fixed to an end edge portion of the lid plate when viewed in a direction perpendicular to the main surface of the wiring substrate, and
• the other end of the columnar member has a shape that is larger than a cross section of other portions of the columnar member.