Series:	FA-128
Part Status:	Active
Type:	MHz Crystal
Frequency:	27.12MHz
Frequency Stability:	±15ppm
Frequency Tolerance:	±15ppm
Load Capacitance:	8pF
ESR (Equivalent Series Resistance):	60 Ohms
Operating Mode:	Fundamental
Operating Temperature:	--
Ratings:	--
Mounting Type:	Surface Mount
Package / Case:	4-SMD, No Lead
Size / Dimension:	0.079" L x 0.063" W (2.00mm x 1.60mm)
Height - Seated (Max):	0.020" (0.50mm)

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Introduction to Crystals

Crystals are materials that have a regular and orderly arrangement of atoms. They have unique optical, electrical, and magnetic properties due to their crystalline structure, and are used for a variety of applications.

FA-128 27.1200ME15R-AJ Application and Working Principle

The FA-128 27.1200ME15R-AJ crystal is a common type of crystal device used for a variety of high frequency applications, such as radio receivers and transmitters. The device is composed of a unique combination of several distinct materials, including quartz and aluminum, which provides excellent stability and temperature characteristics.The core application of the FA-128 27.1200ME15R-AJ crystal is to provide an accurately tuned oscillation frequency for a high frequency circuit, such as a radio receiver or transmitter. To achieve this, the oscillator circuit is connected to two electrodes at opposite sides of the crystal using a conductive medium. When an alternating electrical signal is applied to the oscillator circuit, the crystal begins to vibrate at its natural frequency. This frequency is determined by the size and shape of the crystal, and is therefore tunable.At the same time, the vibration of the crystal also creates an oscillating current that is then fed back into the circuit, resulting in sustained oscillation at the desired frequency. Other applications for this crystal include clock generators, filter applications, and frequency modulation systems.

Conclusion

The FA-128 27.1200ME15R-AJ crystal is an important component in the design of high frequency circuits, providing an accurately tuned oscillation frequency for use in receivers, transmitters, clocks, filters, and frequency modulation systems. By combining the unique properties of quartz and aluminum, the FA-128 27.1200ME15R-AJ crystal is capable of providing long term stability and superior temperature characteristics.

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