445C25C20M00000

Series:	445
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	MHz Crystal
Frequency:	20MHz
Frequency Stability:	±50ppm
Frequency Tolerance:	±20ppm
Load Capacitance:	16pF
ESR (Equivalent Series Resistance):	40 Ohms
Operating Mode:	Fundamental
Operating Temperature:	-20°C ~ 70°C
Ratings:	--
Mounting Type:	Surface Mount
Package / Case:	2-SMD, No Lead
Size / Dimension:	0.197" L x 0.126" W (5.00mm x 3.20mm)
Height - Seated (Max):	0.053" (1.35mm)

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Crystals: 445C25C20M00000 Application Field and Working Principle

Crystals are an important part of electronic devices, ranging from multilayer chip design to power systems and car modules. While the mechanisms of crystals may be complex, understanding the basics of their operation and application field can prove valuable to those working in electronic engineering. In this article, we will discuss the application field and working principle of the 445C25C20M00000 crystal, a common type of crystal used in many electronic applications.The 445C25C20M00000 crystal is a crystal resonator used for frequency control applications. It is a 26.5 MHz crystal oscillator with excellent frequency stability, low phase noise and a low temperature coefficient. It is available in a variety of packages, including chip for high-density designs, through-hole, or surface mount.The main application of the 445C25C20M00000 is for frequency control in radio and microwave systems such as those used for wireless communication and radio broadcast. In addition, it is well-suited for frequency control of clock oscillators and microprocessors, as well as for timing applications such as frequency synthesizers, PLLs and infrared receivers.The working principle of a crystal is based on the piezoelectric effect. This effect is the basis of a number of important electronic applications and is based on the fact that certain materials, when subjected to mechanical stress, produce a charge. In the case of crystals, the mechanical stress is in the form of an alternating electrical field that causes the crystal to vibrate at a specific frequency.The mechanism behind the piezoelectric effect is that when the crystal is subjected to an alternating electric field, the crystal will become polarized, and its ions will rearrange themselves in such a way that they create an induced polarizing electric field on the opposite side of the crystal. This induced electric field produces an opposite electric field which in turn causes the crystal to vibrate. The frequency of vibration for each crystal is determined by its size and shape, and the type of crystal used.Since crystals are able to vibrate at a very precise frequency, they are ideal for frequency control applications. When connected to an appropriate electrical circuit, the crystal can be used to control a frequency generator, allowing for precise control of the output frequency. This makes it possible to create precise signals for radio and microwave communication, as well as for the generation of clock signals for microprocessors.In conclusion, the 445C25C20M00000 crystal is a crystal resonator that is ideal for frequency control applications, making it a valuable component of many electronic devices. Its excellent frequency stability, low phase noise, and low temperature coefficient make it a great choice for tasks such as frequency control in radio and microwave systems, as well as frequency control of clock oscillators and microprocessors. Furthermore, its precise frequency control capabilities make it ideal for timing applications such as frequency synthesizers, PLLs and infrared receivers.

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