When attempting to insert the pins into the printed circuit board, if the pins do not
enter the holes but instead strike the printed circuit board, a force will act to push the pins in the
direction toward the inside of the product. If an excessively large force is applied in the direction
toward the inside of the product, the fixing point of each pin will break, and the pins will be pushed
into the product.
When the pins are pushed through the component, the two electrodes will touch the piezoelectric
vibration plate, and a short circuit will occur, resulting in a malfunction.