CSA309-7.3728MABJ-UB

Series:	CSA309
Packaging:	Bulk
Part Status:	Obsolete
Type:	MHz Crystal
Frequency:	7.3728MHz
Frequency Stability:	±50ppm
Frequency Tolerance:	±30ppm
Load Capacitance:	18pF
ESR (Equivalent Series Resistance):	100 Ohms
Operating Mode:	Fundamental
Operating Temperature:	-10°C ~ 60°C
Ratings:	--
Mounting Type:	Through Hole
Package / Case:	Cylindrical Can, Radial
Size / Dimension:	0.118" Dia x 0.346" L (3.00mm x 8.80mm)
Height - Seated (Max):	0.354" (9.00mm)

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Crystals: CSA309-7.3728MABJ-UB Application Field and Working Principle

Crystals are an essential component in the fabriacation of all types of electronic circuits, and they are most frequently used in quartz crystal oscillators (QCO). QCOs have many different varieties and applications, but the CSA309-7.3728MABJ-UB crystal is of particular interest due to its unique properties. This article will provide an overview of the application field of the CSA309-7.3728MABJ-UB crystal as well as its working principle and internal structure.

Application Field

The application field of the CSA309-7.3728MABJ-UB crystal is wide, ranging from low-end consumer electronics to high-end military equipment. This crystal is often used for precise timing, as it has a relatively low frequency tolerance so accuracy can be easily maintained over long periods of time. It is especially well-suited for applications that require precise frequency selectivity, such as wireless networking and frequency hopping. Additionally, the crystal is well-suited for use in low-power electronics, where it helps to reduce power consumption by providing a precise, consistent frequency without the need to use additional components.

Working Principle

The CSA309-7.3728MABJ-UB crystal is composed of three components: the quartz crystal, a metal housing, and a lead frame. The quartz crystal is a piezoelectric material, meaning that it can be influenced by electrical fields. When an alternating current is applied to the quartz, it vibrates in accordance with the frequency of the current, producing a series of mechanical impulses. These impulses cause the metal housing and lead frame to vibrate in a corresponding manner, producing a desired output frequency.

Internal Structure

The internal structure of the CSA309-7.3728MABJ-UB crystal is relatively simple and straightforward. The quartz crystal is suspended inside of a metal housing, usually in the form of a thin rod or disc. The lead frame is connected to the metal housing, and it consists of two leads that connect to the external circuitry of the device. The entire assembly is then sealed with a hermetically-sealed lid. The quartz itself is vibrated at a specific frequency by the alternating current, which causes the metal housing and lead frame to vibrate in response.

Conclusion

The CSA309-7.3728MABJ-UB crystal is a widely used type of quartz crystal that is used in many different electronic devices. Its application field is wide, ranging from low-end consumer electronics to high-end military equipment, and it is well-suited for applications that require precise frequency selectivity. Its working principle is simple and straightforward, and it consists of a quartz crystal, a metal housing, and a lead frame. Finally, its internal structure is composed of a quartz crystal, metal housing, and lead frame, all of which are sealed together with a hermetically-sealed lid.

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