Magnetic sensor and magnetic sensor device

A magnetic sensor device that utilizes a large Barkhausen effect, comprising:

• a magnetic sensor having a magnetic wire rod that generates a large Barkhausen effect, a coil through which flows an electric current corresponding to changes in the direction of magnetization of the magnetic wire rod, and a bobbin in whose interior the magnetic wire rod is disposed and on whose outer peripheral portion an electrical wire forming the coil is wound;
• and
• a sensor support member for supporting the magnetic sensor on a component-carrying surface of a substrate, wherein:
• the sensor support member has:
• a main body portion having a predetermined three-dimensional shape extending in a first direction;
• a sensor attachment portion provided in the main body portion and used to attach the magnetic sensor to the main body portion in an orientation in which the axis of the bobbin is parallel to a plane comprising the first direction;
• and
• multiple columnar support portions provided in the main body portion;
• each columnar support portion protrudes from the main body portion in a second direction intersecting the plane comprising the first direction,
• the end face on the protruding end of each columnar support portion is a surface that makes contact with the component-carrying surface once said magnetic sensor device is mounted to the substrate, and
• the amount of protrusion of each columnar support portion from the main body portion in the second direction is configured such that, once said magnetic sensor device is mounted to the substrate, a component placement space allowing for placement of components other than said magnetic sensor device that are contemplated to be disposed on the component-carrying surface is formed between the section on the outer peripheral surface of the coil of the magnetic sensor attached to the sensor attachment portion which faces the component-carrying surface and the component-carrying surface itself.