| 摘要 |
PURPOSE:To avoid the necessity from being added for a capacitor especially in case of use of an oscillation circuit, by forming a capacitive component with electrodes for capacitor provided with solder plating and constituting a parallel circuit with the oscillator component formed with the resonance electrodes. CONSTITUTION:On the upper and lower surfaces of a long strip-shaped piezoelectric porcelain element 10, one set of resonance electrodes 11a, 11b opposed to each other via the element 10, and two sets of capacitive electrodes 12a, 12b, 13a, 13b carried out solder plating are provided, and the capacitance electrodes 12a, 13b not opposed on the upper and lower surface are connected to a grounding electrode 19 of a printed wiring board 9. Further, the capacitor electrode 13a and the resonance electrode 11a on the upper surface are connected to one input and output electrode of the board 9, the capacitor electrode 12b and the resonance electrode 11b on the lower surface are connected to another input and output electrode 18a, and one resonance component and two capacitor components can be connected in parallel. |
