ECS-180-20-4

Series:	HC-49US
Packaging:	Bulk
Part Status:	Active
Type:	MHz Crystal
Frequency:	18MHz
Frequency Stability:	±50ppm
Frequency Tolerance:	±30ppm
Load Capacitance:	20pF
ESR (Equivalent Series Resistance):	40 Ohms
Operating Mode:	Fundamental
Operating Temperature:	-10°C ~ 70°C
Ratings:	--
Mounting Type:	Through Hole
Package / Case:	HC-49/US
Size / Dimension:	0.447" L x 0.183" W (11.35mm x 4.65mm)
Height - Seated (Max):	0.138" (3.50mm)

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Crystals - ECS-180-20-4 Application Field and Working Principle

A crystal is a solid material consisting of atoms, molecules, or ions, which are all arranged in an ordered and regularly repeating 3-dimensional pattern across its surface. Crystal structure can be described in terms of the positions and directions of the lattice points in space, the symmetry and composition of the crystal, and the symmetry of their atomic arrangements. Certain materials, when put under certain conditions, can form into ordered crystalline structures. The ECS-180-20-4 crystal is a type of piezoelectric crystal designed for high frequency applications. It is a high frequency, ceramic-based crystal resonator featuring a high-impedance configuration and a small form factor. The ECS-180-20-4 has a high-impedance configuration which allows for a frequency accuracy of +/- 3 ppm over a wide temperature range (-20°C to 65°C). The crystal also features a low power consumption.The ECS-180-20-4 can be used in a wide range of applications, such as for frequency synthesis, timing and synchronization, datacomm, and personal communication services (PCS). It is commonly used in cellular phones and other types of portable electronics. It can also be used in resonators, oscillators and transceivers.The working principle of the ECS-180-20-4 crystal is based on the piezoelectric effect. The piezoelectric effect relates to the way in which pressure is applied to the crystal lattice structure of the crystal, which causes it to vibrate at a certain frequency. The frequency of the vibrations is determined by the size of the crystal, its shape, and the material it is made of. When a high voltage is applied across the crystal, it causes the crystal to vibrate at its resonant frequency.The ECS-180-20-4 is composed of two plates of Cr-cut quartz, which is specifically designed to generate high frequencies. The two plates are connected to electrodes, which are designed to control the piezoelectric effect and create the desired frequency. The electrodes can be adjusted to adjust the frequency to the desired level.When a voltage is applied across the two plates of the crystal, the plates expand and contract due to the piezoelectric effect. This change in volume causes the crystal to produce a mechanical vibration at a frequency which is determined by the size and shape of the crystal. The vibrations then create an electrical signal, which is then amplified and used as an input signal for a circuit.In conclusion, the ECS-180-20-4 is a high-frequency, ceramic-based crystal resonator which is used in a variety of applications. It is based on the piezoelectric effect and uses two plates of Cr-cut quartz to generate high frequencies. With its high-impedance configuration and low power consumption, the ECS-180-20-4 is a versatile and reliable crystal for many electronics applications today.

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