Quartz crystal oscillator is the use of quartz crystals (Tang Silicon Oxide crystals) piezoelectric effect made of a resonant device, its basic composition is roughly: from a quartz crystal according to a certain azimuthal angle cut down the sheet (referred to as the wafer, which can be a square, rectangular or round, etc.), in its two corresponding surfaces coated with silver as the electrodes. In each electrode on the welding of a lead to the pin, plus the package shell constitutes a quartz crystal resonator, referred to as quartz crystal or crystal, crystal oscillator. Its products are generally encapsulated in a metal case, but there are also glass, ceramic or plastic encapsulation. 
 
Quartz crystal oscillator is a high-precision and high-stability oscillator, is widely used in colour TV, computers, remote control and other types of oscillator circuits, as well as communication systems used in the frequency generator, for data processing equipment to generate clock signals and to provide reference signals for specific systems. 

Product Application ：

General-purpose crystal oscillators used in various circuits to generate oscillation frequencies. 
-Quartz crystal resonators for clock pulses, used in conjunction with other components to generate standard pulse signals, are widely used in digital electronics.
-Quartz crystal resonators for microprocessors.
-Quartz crystal resonators for CTVVTR. 
-Quartz crystal oscillators for clocks and watches.

Product Features:  

-High precision, good stability of high frequency 
-High reliability, good anti-vibration effect 
-Metal shell, good anti-interference performance 
-Green environmental protection
 
Product Name：Quartz crystal oscillator
Number of pins: 2
Number of turns:20.5T
Installation:Direct insertion/chip
Load capacitance:20pF
Equivalent resistance:30Ω
Frequency difference:±20ppm
Active or not:Passive
Temperature range:-20°C+85°C