Heat is not easily transmitted to the temperature-sensitive element and the crystal oscillator, provides a crystal vibrating device.
Crystal vibrating device 1 according to the present invention includes a mounting substrate 2, connecting electrodes 4a and reaches the upper surface 2a of the mounting substrate 2 through the side surface of the mounting substrate 2, and 4b, first provided on the mount substrate 2 It includes a packaging material 9, a quartz oscillator 7 is provided on the upper surface 9a of the first package member 9, and a temperature-sensitive element 14 mounted on the lower surface 9b of the first package member 9. Connection electrodes 4a, 4b has a first portion 4A which is located on the upper surface 2a of the mounting substrate 2, respectively. In plan view, the connection electrode 4a, a first portion 4A and 4b are electrode lands 5a, the direction extending toward the 5b to the first direction, when the direction orthogonal to the first direction and the second direction, the connection electrodes 4a, dimension along the portion of the second direction of the first portion 4A and 4b, the connection electrodes 4a, smaller than the dimension along the second direction of the rest of the 4b.